Cooperative Patent Classification

Indent Level

Version: 2016.11
CPC
COOPERATIVE PATENT CLASSIFICATION
H01Q
AERIALS (microwave radiators for near-field therepeutic treatment A61N 5/04; apparatus for testing aerials or for measuring aerial characteristics G01R; waveguides H01P; radiators or aerials for microwave heating H05B 6/72) [2015-01]
NOTES

  • This subclass covers:
    • in addition to the primary active radiating elements,
      • secondary devices for absorbing or for modifying the direction or polarisation of waves radiated from aerials, and
      • combinations with auxiliary devices such as earthing switches, lead-in devices, and lightning protectors;
    • both transmitting and receiving aerials
  • This subclass does not cover devices of the waveguide type, such as resonators or lines, not designed as radiating elements, which are covered by subclass H01P.
  • In this subclass, the following expression is used with the meaning indicated:
    • "active radiating element" covers corresponding parts of a receiving aerial.
H01Q 1/00
Details of, or arrangements associated with, aerials (arrangements for varying orientation of directional pattern H01Q 3/00) [2013-01]
NOTES

  • This group covers only:
    • structural details or features of aerials not dependent on electric operation;
    • structural details or features applicable to more than one type of aerial or aerial element.
  • Structural details or features described with reference to, or clearly applicable only to, aerials or aerial elements of a particular type are classified in the group appropriate to that type.
H01Q 1/002
.
{Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an aerial (cooling H01Q 1/02)} [2013-01]
H01Q 1/005
.
{Damping of vibrations; Means for reducing wind-induced forces (damping of vibrations in general F16F)} [2013-01]
H01Q 1/007
.
{specially adapted for indoor communication} [2013-01]
H01Q 1/02
.
Arrangements for de-icing; Arrangements for drying-out; {Arrangements for cooling; Arrangements for preventing corrosion (radomes H01Q 1/42)} [2013-01]
H01Q 1/04
.
Adaptation for subterranean or subaqueous use [2013-01]
H01Q 1/06
.
Means for the lighting or illuminating of aerials, e.g. for purpose of warning [2013-01]
H01Q 1/08
.
Means for collapsing aerials or parts thereof; {Collapsible aerials }({collapsible supports H01Q 1/1235 } ; collapsible loop aerials H01Q 7/02; {collapsible helical aerials H01Q 11/086; collapsible reflecting surfaces H01Q 15/161, H01Q 15/20 } ; collapsible H-aerials or Yagi aerials H01Q 19/04) [2013-01]
H01Q 1/081
. .
{Inflatable antennas} [2013-01]
H01Q 1/082
. . .
{Balloon antennas (balloon supported antennas H01Q 1/1292)} [2013-01]
H01Q 1/084
. .
{Pivotable antennas (mechanical movement of aerial or aerial system for changing or varying the orientation or the shape of the directional pattern H01Q 3/02; adjustment of angle between two radiating elements H01Q 9/12)} [2013-01]
H01Q 1/085
. .
{Flexible aerials; Whip aerials with a resilient base} [2013-01]
H01Q 1/087
. . .
{Extensible roll- up aerials} [2013-01]
H01Q 1/088
. .
{Quick-releasable antenna elements} [2013-01]
H01Q 1/10
. .
Telescopic elements [2013-01]
H01Q 1/103
. . .
{Latching means; ensuring extension or retraction thereof} [2013-01]
H01Q 1/106
. . .
{Means for locking or protecting against unauthorized extraction} [2013-01]
H01Q 1/12
.
Supports; Mounting means ({for the purpose of scanning H01Q 3/00; mounting structure for reflecting surfaces H01Q 15/14; Towers, masts, or poles E04H 12/00 } ; supporting conductors in general H02G 7/00) [2013-01]
H01Q 1/1207
. .
{for fastening a rigid aerial element} [2013-01]
H01Q 1/1214
. . .
{through a wall} [2013-01]
H01Q 1/1221
. . .
{onto a wall} [2013-01]
H01Q 1/1228
. . .
{on a boom (coupling of tubular pipes F16B 7/04)} [2013-01]
H01Q 1/1235
. .
{Collapsible supports; Means for erecting a rigid antenna} [2013-01]
H01Q 1/1242
. .
{Rigid masts specially adapted for supporting an aerial} [2013-01]
H01Q 1/125
. .
{Means for positioning (stabilising H01Q 1/18; remotely controlled positioning H01Q 3/005)} [2013-01]
H01Q 1/1257
. . .
{using the received signal strength (direction finding G01S 3/38; diversity H04B 7/10)} [2013-01]
H01Q 1/1264
. . .
{Adjusting different parts or elements of an aerial unit} [2013-01]
H01Q 1/1271
. .
{for mounting on windscreens} [2013-01]
H01Q 1/1278
. . .
{in association with heating wires or layers} [2013-01]
H01Q 1/1285
. . .
{with capacitive feeding through the windscreen} [2013-01]
H01Q 1/1292
. .
{for mounting on balloons} [2013-01]
H01Q 1/14
. .
for wire or other non-rigid radiating elements [2013-01]
H01Q 1/16
. . .
Strainers, spreaders, or spacers [2013-01]
H01Q 1/18
. .
Means for stabilising aerials on an unstable platform {(reducing wind-induced forces H01Q 1/005)} [2013-01]
H01Q 1/185
. . .
{by electronic means (electronic scanning H01Q 3/26)} [2013-01]
H01Q 1/20
. .
Resilient mountings [2013-01]
H01Q 1/22
. .
by structural association with other equipment or articles {(portable transceivers H04B 1/3827)} [2013-01]
H01Q 1/2208
. . .
{associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems (G06K 7/00 and G06K 19/00 take precedence)} [2013-01]
H01Q 1/2216
. . . .
{used in interrogator/reader equipment} [2013-01]
H01Q 1/2225
. . . .
{used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal} [2013-01]
H01Q 1/2233
. . . .
{used in consumption-meter devices, e.g. electricity, gas or water meters (remote reading of utility meters G01D 4/002; transmission of measured values using a radio link in general G08C 17/02)} [2013-01]
H01Q 1/2241
. . . .
{used in or for vehicle tyres (tyres in general B60C 3/04)} [2013-01]
H01Q 1/225
. . .
{used in level-measurement devices, e.g. for level gauge measurement (level measuring with electromagnetic waves in general G01F 23/284)} [2013-01]
H01Q 1/2258
. . .
{used with computer equipment} [2013-01]
H01Q 1/2266
. . . .
{disposed inside the computer} [2013-01]
H01Q 1/2275
. . . .
{associated to expansion card or bus, e.g. in PCMCIA, PC cards, Wireless USB} [2013-01]
H01Q 1/2283
. . .
{mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package (chip carriers for flat cards H01L 23/49855)} [2013-01]
H01Q 1/2291
. . .
{used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN] (H01Q 1/241 takes precedence; WLAN in general H04W)} [2013-01]
H01Q 1/24
. . .
with receiving set [2013-01]
H01Q 1/241
. . . .
{used in mobile communications, e.g. GSM (H01Q 1/247, H01Q 1/248 take precedence)} [2013-01]
H01Q 1/242
. . . . .
{specially adapted for hand-held use} [2013-01]
H01Q 1/243
. . . . . .
{with built-in antennas} [2013-01]
H01Q 1/244
. . . . . . .
{extendable from a housing along a given path} [2013-01]
H01Q 1/245
. . . . . .
{with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure} [2013-01]
H01Q 1/246
. . . . .
{specially adapted for base stations} [2013-01]
H01Q 1/247
. . . .
{with frequency mixer, e.g. for direct satellite reception or Doppler radar (active antennas H01Q 23/00)} [2013-01]
H01Q 1/248
. . . .
{provided with an AC/DC converting device, e.g. rectennas} [2013-01]
H01Q 1/26
. . .
with electric discharge tube [2013-01]
H01Q 1/27
.
Adaptation for use in or on movable bodies (H01Q 1/08, H01Q 1/12, H01Q 1/18 take precedence; {portable transceivers H04B 1/3827}) [2013-01]
H01Q 1/273
. .
{Adaptation for carrying or wearing by persons or animals} [2013-01]
H01Q 1/276
. . .
{for mounting on helmets} [2013-01]
H01Q 1/28
. .
Adaptation for use in or on aircraft, missiles, satellites, or balloons [2013-01]
H01Q 1/281
. . .
{Nose antennas} [2013-01]
H01Q 1/282
. . .
{Modifying the aerodynamic properties of the vehicle, e.g. projecting type aerials} [2013-01]
H01Q 1/283
. . . .
{Blade, stub antennas} [2013-01]
H01Q 1/285
. . .
{Aircraft wire antennas (means for trailing H01Q 1/30)} [2013-01]
H01Q 1/286
. . .
{substantially flush mounted with the skin of the craft} [2013-01]
H01Q 1/287
. . . .
{integrated in a wing or a stabiliser} [2013-01]
H01Q 1/288
. . .
{Satellite antennas} [2013-01]
H01Q 1/30
. . .
Means for trailing aerials [2013-01]
H01Q 1/32
. .
Adaptation for use in or on road or rail vehicles (telescopic elements H01Q 1/10; resilient mountings for aerials H01Q 1/20) [2013-01]
H01Q 1/3208
. . .
{characterised by the application wherein the antenna is used} [2013-01]
H01Q 1/3216
. . . .
{where the road or rail vehicle is only used as transportation means} [2013-01]
H01Q 1/3225
. . . .
{Cooperation with the rails or the road} [2013-01]
H01Q 1/3233
. . . .
{particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems} [2013-01]
H01Q 1/3241
. . . . .
{particular used in keyless entry systems} [2013-01]
H01Q 1/325
. . .
{characterised by the location of the antenna on the vehicle} [2013-01]
H01Q 1/3258
. . . .
{using the gutter of the vehicle; Means for clamping a whip aerial on the edge of a part of the vehicle} [2013-01]
H01Q 1/3266
. . . .
{using the mirror of the vehicle} [2013-01]
H01Q 1/3275
. . . .
{mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk} [2013-01]
H01Q 1/3283
. . . .
{side-mounted antennas, e.g. bumper-mounted, door-mounted (mounted on windscreens H01Q 1/1271)} [2013-01]
H01Q 1/3291
. . . .
{mounted in or on other locations inside the vehicle or vehicle body} [2013-01]
H01Q 1/34
. .
Adaptation for use in or on ships, submarines, buoys, or torpedoes (for subaqueous use H01Q 1/04; retractable loop aerials H01Q 7/02) [2013-01]
H01Q 1/36
.
Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith }(H01Q 1/08, H01Q 1/14 take precedence) [2013-01]
H01Q 1/362
. .
{for broadside radiating helical antennas} [2013-01]
H01Q 1/364
. .
{using a particular conducting material, e.g. supraconductor} [2013-01]
H01Q 1/366
. . .
{using an ionized gas} [2013-01]
H01Q 1/368
. . .
{using carbon or carbon composite} [2013-01]
H01Q 1/38
. .
formed by a conductive layer on an insulating support ({patch antennas H01Q 9/0407; microstrip dipole antennas H01Q 9/065; microstrip slot antenn as H01Q 13/106; transmission line microstrip antennas H01Q 13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q 15/142 } ; conductors in general H01B 5/14) [2013-01]
H01Q 1/40
.
Radiating elements coated with or embedded in protective material [2013-01]
H01Q 1/405
. .
{Radome integrated radiating elements} [2013-01]
H01Q 1/42
.
Housings not intimately mechanically associated with radiating elements, e.g. radome [2013-01]
H01Q 1/421
. .
{Means for correcting aberrations introduced by a radome} [2013-01]
H01Q 1/422
. .
{comprising two or more layers of dielectric material (H01Q 1/425 takes precedence)} [2013-01]
H01Q 1/424
. . .
{comprising a layer of expanded material} [2013-01]
H01Q 1/425
. .
{comprising a metallic grid} [2013-01]
H01Q 1/427
. .
{Flexible radomes} [2013-01]
H01Q 1/428
. .
{Collapsible radomes; rotatable, tiltable radomes} [2013-01]
H01Q 1/44
.
using equipment having another main function to serve additionally as an aerial; {Means for giving an aerial anaesthetic aspect }(H01Q 1/28 - H01Q 1/34 take precedence) [2016-05]
H01Q 1/46
. .
Electric supply lines or communication lines {(circuits for signal transmission via power distribution lines H04B 3/56)} [2013-01]
H01Q 1/48
.
Earthing means; Earth screens; Counterpoises (earthing pins H01R 4/66) [2013-01]
H01Q 1/50
.
Structural association of aerials with earthing switches, lead-in devices or lightning protectors (lead-in devices H01B; lightning protectors, switches H01H) [2013-01]
H01Q 1/52
.
Means for reducing coupling between aerials; Means for reducing coupling between an aerial and another structure {(absorbing means H01Q 17/00)} [2013-01]
H01Q 1/521
. .
{reducing the coupling between adjacent antennas} [2013-01]
H01Q 1/523
. . .
{between antennas of an array} [2013-01]
H01Q 1/525
. . .
{between emitting and receiving antennas (feed-through nulling for radar G01S 7/038)} [2013-01]
H01Q 1/526
. .
{Electromagnetic shields (anechoic chambers G01R 29/105; shielding of instruments G12B 17/00, of CRT H01J 29/867, of electrical apparatus or components H05K 9/00)} [2013-01]
H01Q 1/528
. .
{reducing the reradiation of a support structure (in a parabolic reflector antenna H01Q 19/023)} [2013-01]
H01Q 3/00
Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system {(means for positioning H01Q 1/125)} [2013-01]
H01Q 3/005
.
{using remotely controlled aerial positioning or scanning (remote control in general G08C)} [2013-01]
H01Q 3/01
.
varying the shape of the aerial or aerial system [2013-01]
H01Q 3/02
.
using mechanical movement of aerial or aerial system as a whole [2013-01]
H01Q 3/04
. .
for varying one co-ordinate of the orientation [2013-01]
H01Q 3/06
. . .
over a restricted angle [2013-01]
H01Q 3/08
. .
for varying two co-ordinates of the orientation [2013-01]
H01Q 3/10
. . .
to produce a conical or spiral scan [2013-01]
H01Q 3/12
.
using mechanical relative movement between primary active elements and secondary devices of aerials or aerial systems {(positioning H01Q 1/1264)} [2013-01]
H01Q 3/14
. .
for varying the relative position of primary active element and a refracting or diffracting device [2013-01]
H01Q 3/16
. .
for varying relative position of primary active element and a reflecting device [2013-01]
H01Q 3/18
. . .
wherein the primary active element is movable and the reflecting device is fixed [2013-01]
H01Q 3/20
. . .
wherein the primary active element is fixed and the reflecting device is movable [2013-01]
H01Q 3/22
.
varying the orientation in accordance with variation of frequency of radiated wave [2013-01]
H01Q 3/24
.
varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching [2013-01]
H01Q 3/242
. .
{Circumferential scanning} [2013-01]
H01Q 3/245
. .
{in the focal plane of a focussing device} [2013-01]
H01Q 3/247
. .
{by switching different parts of a primary active element} [2013-01]
H01Q 3/26
.
varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture ({H01Q 3/12 } , H01Q 3/22, H01Q 3/24 take precedence; {use of steered beams for mobile service area coverage H04W 16/28}) [2015-07]
H01Q 3/2605
. .
{Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays (tracking G01S 3/42)} [2013-01]
H01Q 3/2611
. . .
{Means for null steering; Adaptive interference nulling} [2013-01]
H01Q 3/2617
. . . .
{Array of identical elements} [2013-01]
H01Q 3/2623
. . . . .
{composed of two antennas} [2013-01]
H01Q 3/2629
. . . .
{Combination of a main antenna unit with an auxiliary antenna unit} [2013-01]
H01Q 3/2635
. . . . .
{the auxiliary unit being composed of a plurality of antennas} [2013-01]
H01Q 3/2641
. . . . . .
{being secundary elements, e.g. reactively steered} [2013-01]
H01Q 3/2647
. . .
{Retrodirective arrays} [2013-01]
H01Q 3/2652
. . .
{Self-phasing arrays} [2013-01]
H01Q 3/2658
. .
{Phased-array fed focussing structure} [2013-01]
H01Q 3/2664
. .
{electrically moving the phase centre of a radiating element in the focal plane of a focussing device (switching H01Q 3/245, phased-array feeds H01Q 3/2658)} [2013-01]
H01Q 3/267
. .
{Phased-array testing or checking devices (measuring radiation diagrams of aerials G01R 29/10)} [2013-01]
H01Q 3/2676
. .
{Optically controlled phased array (optical fibre networks H03H 2/003)} [2013-01]
H01Q 3/2682
. .
{Time delay steered arrays} [2013-01]
H01Q 3/2688
. . .
{using acoustic or magnetostatic wave devices} [2013-01]
H01Q 3/2694
. . .
{using also variable phase-shifters (H01Q 3/2688 takes precedence)} [2013-01]
H01Q 3/28
. .
varying the amplitude [2013-01]
H01Q 3/30
. .
varying the {relative} phase {between the radiating elements of an array (H01Q 3/2605, H01Q 3/2658, H01Q 3/2682, H01Q 3/44 take precedence)} [2013-01]
H01Q 3/32
. . .
by mechanical means [2013-01]
H01Q 3/34
. . .
by electrical means (active lenses or reflecting arrays H01Q 3/46) [2013-01]
H01Q 3/36
. . . .
with variable phase-shifters {(combined with time delay devices H01Q 3/2682)} [2013-01]
H01Q 3/38
. . . . .
the phase-shifters being digital [2013-01]
H01Q 3/385
. . . . . .
{Scan control logics} [2013-01]
H01Q 3/40
. . . .
with phasing matrix [2013-01]
H01Q 3/42
. . . .
using frequency-mixing {(H01Q 3/2676 takes precedence)} [2013-01]
H01Q 3/44
.
varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element [2013-01]
H01Q 3/443
. .
{varying the phase velocity along a leaky transmission line (frequency scanning H01Q 3/22; non-resonant leaky-waveguide or transmission-line aerials H01Q 13/20)} [2013-01]
H01Q 3/446
. .
{the radiating element being at the centre of one or more rings of auxiliary elements} [2013-01]
H01Q 3/46
. .
Active lenses or reflecting arrays [2013-01]
H01Q 5/00
Arrangements for simultaneous operation of aerials on two or more different wavebands, e.g. dual-band or multi-band arrangements (combinations of separate active aerial units operating in different wavebands and connected to a common feeder system H01Q 21/30) [2015-01]
H01Q 5/10
.
Resonant aerials [2015-01]
H01Q 5/15
. .
for operation of centre-fed aerials comprising one or more collinear, substantially straight or elongated active elements [2015-01]
H01Q 5/20
.
characterised by the operating wavebands [2015-01]
H01Q 5/22
. .
RF wavebands combined with non-RF wavebands, e.g. infrared or optical [2015-01]
H01Q 5/25
. .
Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems [2015-01]
H01Q 5/28
. .
Arrangements for establishing polarisation or beam width over two or more different wavebands [2015-01]
H01Q 5/30
.
Arrangements for providing operation on different wavebands [2015-01]
H01Q 5/307
. .
Individual or coupled radiating elements, each element being fed in an unspecified way [2015-01]
H01Q 5/314
. . .
using frequency dependent circuits or components, e.g. trap circuits or capacitors [2015-01]
H01Q 5/321
. . . .
within a radiating element or between connected radiating elements [2015-01]
H01Q 5/328
. . . .
between a radiating element and ground [2015-01]
H01Q 5/335
. . . .
at the feed, e.g. for impedance matching [2015-01]
H01Q 5/342
. . .
for different propagation modes (H01Q 5/314 takes precedence) [2015-01]
H01Q 5/35
. . . .
using two or more simultaneously fed points [2015-01]
H01Q 5/357
. . . .
using a single feed point [2015-01]
H01Q 5/364
. . . . .
Creating multiple current paths [2015-01]
H01Q 5/371
. . . . . .
Branching current paths [2015-01]
H01Q 5/378
. .
Combination of fed elements with parasitic elements [2015-01]
H01Q 5/385
. . .
Two or more parasitic elements [2015-01]
H01Q 5/392
. . .
the parasitic elements having dual-band or multi-band characteristics [2015-01]
H01Q 5/40
.
Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements [2015-01]
H01Q 5/42
. .
using two or more imbricated arrays (H01Q 5/49 takes precedence) [2015-01]
H01Q 5/45
. .
using two or more feeds in association with a common reflecting, diffracting or refracting device [2015-01]
H01Q 5/47
. . .
with a coaxial arrangement of the feeds [2015-01]
H01Q 5/48
. .
Combinations of two or more dipole type aerials [2015-01]
H01Q 5/49
. . .
with parasitic elements used for purposes other than for dual-band or multi-band, e.g. imbricated Yagi aerials [2015-01]
H01Q 5/50
.
Feeding or matching arrangements for broad-band or multi-band operation [2015-01]
H01Q 5/55
. .
for horn or waveguide aerials [2015-01]
H01Q 7/00
Loop aerials with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop [2013-01]
H01Q 7/005
.
{with variable reactance for tuning the antenna (tuning resonant circuits H03J)} [2013-01]
H01Q 7/02
.
Collapsible aerials; Retractable aerials [2013-01]
H01Q 7/04
.
Screened aerials (H01Q 7/02, H01Q 7/06 take precedence) [2013-01]
H01Q 7/06
.
with core of ferromagnetic material (H01Q 7/02 takes precedence) [2013-01]
H01Q 7/08
. .
Ferrite rod or like elongated core [2013-01]
H01Q 9/00
Electrically-short aerials having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements (loop aerials H01Q 7/00; waveguide horns or mouths H01Q 13/00; slot aerials H01Q 13/00; combinations of active elements with secondary devices to give desired directional characteristic H01Q 19/00; combinations of two or more active elements H01Q 21/00) [2013-01]
H01Q 9/005
.
{for radiating non-sinusoidal waves} [2013-01]
H01Q 9/02
.
Non-resonant aerials [2013-01]
H01Q 9/04
.
Resonant aerials [2013-01]
H01Q 9/0407
. .
{Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q 9/285; monopole H01Q 9/40)} [2013-01]
H01Q 9/0414
. . .
{in a stacked or folded configuration} [2013-01]
H01Q 9/0421
. . .
{with a shorting wall or a shorting pin at one end of the element (H01Q 9/0414 takes precedence)} [2013-01]
H01Q 9/0428
. . .
{radiating a circular polarised wave} [2013-01]
H01Q 9/0435
. . . .
{using two feed points} [2013-01]
H01Q 9/0442
. . .
{with particular tuning means} [2013-01]
H01Q 9/045
. . .
{with particular feeding means (for circular polarisation H01Q 9/0428)} [2013-01]
H01Q 9/0457
. . . .
{electromagnetically coupled to the feed line} [2013-01]
H01Q 9/0464
. . .
{Annular ring patch} [2013-01]
H01Q 9/0471
. . .
{Non-planar, stepped or wedge-shaped patch} [2013-01]
H01Q 9/0478
. . .
{with means for suppressing spurious modes, e.g. cross polarisation} [2013-01]
H01Q 9/0485
. .
{Dielectric resonator antennas} [2013-01]
H01Q 9/0492
. . .
{circularly polarised} [2013-01]
H01Q 9/06
. .
Details [2013-01]
H01Q 9/065
. . .
{Microstrip dipole antennas (patch antenna H01Q 9/0407)} [2013-01]
H01Q 9/08
. . .
Junction boxes specially adapted for supporting adjacent ends of collinear rigid elements [2013-01]
H01Q 9/10
. . .
Junction boxes specially adapted for supporting adjacent ends of divergent elements [2013-01]
H01Q 9/12
. . . .
adapted for adjustment of angle between elements [2013-01]
H01Q 9/14
. . .
Length of element or elements adjustable (telescopic elements H01Q 1/10) [2013-01]
H01Q 9/145
. . . .
{by varying the electrical length} [2013-01]
H01Q 9/16
. .
with feed intermediate between the extremities of the aerial, e.g. centre-fed dipole (H01Q 9/44 takes precedence) [2013-01]
H01Q 9/18
. . .
Vertical disposition of the aerial [2013-01]
H01Q 9/20
. . .
Two collinear substantially straight active elements; Substantially straight single active elements (H01Q 9/28 takes precedence) [2013-01]
H01Q 9/22
. . . .
Rigid rod or equivalent tubular element or elements [2013-01]
H01Q 9/24
. . . .
Shunt feed arrangements to single active elements, e.g. for delta matching [2013-01]
H01Q 9/26
. . .
with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength (resonant loop aerials H01Q 7/00) [2013-01]
H01Q 9/265
. . . .
{Open ring dipoles; Circular dipoles} [2013-01]
H01Q 9/27
. . . .
Spiral aerials [2013-01]
H01Q 9/28
. . .
Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines (biconical horns H01Q 13/04) [2013-01]
H01Q 9/285
. . . .
{Planar dipole (H01Q 9/065 takes precedence; patch antenna H01Q 9/0407)} [2013-01]
H01Q 9/30
. .
with feed to end of elongated active element, e.g. unipole (H01Q 9/44 takes precedence) [2013-01]
H01Q 9/32
. . .
Vertical arrangement of element (H01Q 9/40 takes precedence) [2013-01]
H01Q 9/34
. . . .
Mast, tower, or like self-supporting or stay-supported aerials [2013-01]
H01Q 9/36
. . . .
with top loading [2013-01]
H01Q 9/38
. . . .
with counterpoise (with counterpoise comprising elongated elements coplanar with the active element H01Q 9/44) [2013-01]
H01Q 9/40
. . .
Element having extended radiating surface [2013-01]
H01Q 9/42
. . .
with folded element, the folded parts being spaced apart a small fraction of the operating wavelength [2013-01]
H01Q 9/43
. . . .
Scimitar aerials [2013-01]
H01Q 9/44
. .
with plurality of divergent straight elements, e.g. V-dipole, X-aerial; with plurality of elements having mutually inclined subtantially straight portions (turnstile aerials H01Q 21/26) [2013-01]
H01Q 9/46
. . .
with rigid elements diverging from single point [2013-01]
H01Q 11/00
Electrically-long aerials having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements (leaky waveguides aerials, slot aerials H01Q 13/00; combinations of active elements with secondary devices to give desired directional characteristic H01Q 19/00; aerial arrays or systems H01Q 21/00) [2013-01]
H01Q 11/02
.
Non-resonant aerials, e.g. travelling-wave aerial [2013-01]
H01Q 11/04
. .
with parts bent, folded, shaped, screened, or electrically loaded to obtain desired phase relation of radiation from selected sections of the aerial (rhombic aerials, V-aerials H01Q 11/06) [2013-01]
H01Q 11/06
. .
Rhombic aerials; V-aerials [2013-01]
H01Q 11/08
. .
Helical aerials [2013-01]
H01Q 11/083
. . .
{Tapered helical aerials, e.g. conical spiral aerials} [2013-01]
H01Q 11/086
. . .
{collapsible} [2013-01]
H01Q 11/10
. .
Log-periodic aerials {periodic aerials, e.g. length or spacing of elements according to a given law }(H01Q 11/08 takes precedence) [2013-01]
H01Q 11/105
. . .
{using a dielectric support} [2013-01]
H01Q 11/12
.
Resonant aerials [2013-01]
H01Q 11/14
. .
with parts bent, folded, shaped, or screened, or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the aerial or to obtain desired polarisation effects [2013-01]
H01Q 11/16
. . .
in which the selected sections are collinear [2013-01]
H01Q 11/18
. . .
in which the selected sections are parallelly spaced [2014-02]
H01Q 11/20
. .
V-aerials [2013-01]
H01Q 13/00
Waveguide horns or mouths; Slot aerials; Leaky-waveguide aerials; Equivalent structures causing radiation along the transmission path of a guided wave {(multimode aerials H01Q 25/04)} [2013-01]
H01Q 13/02
.
Waveguide horns [2013-01]
H01Q 13/0208
. .
{Corrugated horns (waveguide mouth antenna with corrugated flange H01Q 13/065; manufacturing details H01Q 13/0283)} [2013-01]
H01Q 13/0216
. . .
{Dual-depth corrugated horns} [2013-01]
H01Q 13/0225
. . .
{of non-circular cross-section (H01Q 13/0216 takes precedence)} [2013-01]
H01Q 13/0233
. .
{Horns fed by a slotted waveguide array (biconical horns H01Q 13/06)} [2013-01]
H01Q 13/0241
. .
{radiating a circularly polarised wave (H01Q 13/0258 takes precedence; polarisation converters H01Q 15/244, in a waveguide H01P 1/17)} [2013-01]
H01Q 13/025
. .
{Multimode horn antennas; Horns using higher mode of propagation (H01Q 13/0241 takes precedence; multiple beam H01Q 25/04)} [2013-01]
H01Q 13/0258
. . .
{Orthomode horns (Orthomode transducers H01P 1/161)} [2013-01]
H01Q 13/0266
. .
{provided with a flange or a choke} [2013-01]
H01Q 13/0275
. .
{Ridged horns (slot-line radiating ends H01Q 13/085)} [2013-01]
H01Q 13/0283
. .
{Apparatus or processes specially provided for manufacturing horns} [2013-01]
H01Q 13/0291
. . .
{for corrugated horns} [2013-01]
H01Q 13/04
. .
Biconical horns (biconical dipoles comprising two conical surfaces having collinear axes and adjacent apices and fed by a two-conductor transmission line H01Q 9/28) [2013-01]
H01Q 13/06
.
Waveguide mouths (horns H01Q 13/02) [2013-01]
H01Q 13/065
. .
{provided with a flange or a choke} [2013-01]
H01Q 13/08
.
Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines [2013-01]
H01Q 13/085
. .
{Slot-line radiating ends} [2013-01]
H01Q 13/10
.
Resonant slot aerials [2013-01]
H01Q 13/103
. .
{with variable reactance for tuning the antenna (tuning resonant circuits H03J)} [2013-01]
H01Q 13/106
. .
{Microstrip slot antennas (patch antenna elements H01Q 9/0407)} [2013-01]
H01Q 13/12
. .
Longitudinally slotted cylinder aerials; Equivalent structures [2013-01]
H01Q 13/14
. . .
Skeleton cylinder aerials [2013-01]
H01Q 13/16
. .
Folded slot aerials [2013-01]
H01Q 13/18
. .
the slot being backed by, or formed in boundary wall of, a resonant cavity (longitudinally slotted cylinder H01Q 13/12); {Open cavity antennas} [2013-01]
H01Q 13/20
.
Non-resonant leaky-waveguide or transmission-line aerials; Equivalent structures causing radiation along the transmission path of a guided wave {(varying the phase velocity H01Q 3/443; near-field transmission systems using leaky cable H04B 5/0018)} [2013-01]
H01Q 13/203
. .
{Leaky coaxial lines} [2013-01]
H01Q 13/206
. .
{Microstrip transmission line antennas} [2013-01]
H01Q 13/22
. .
Longitudinal slot in boundary wall of waveguide or transmission line {(H01Q 13/203 takes precedence)} [2013-01]
H01Q 13/24
. .
constituted by a dielectric or ferromagnetic rod or pipe (H01Q 13/28 takes precedence) [2013-01]
H01Q 13/26
. .
Surface waveguide constituted by a single conductor, e.g. strip conductor [2013-01]
H01Q 13/28
. .
comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements, conductive elements forming artificial dielectric (Yagi aerials H01Q 19/30) [2013-01]
H01Q 15/00
Devices for reflection, refraction, diffraction, or polarisation of waves radiated from an aerial, e.g. quasi-optical devices (variable for purpose of altering directivity H01Q 3/00; arrangements of such devices for guiding waves H01P 3/20; variable for purpose of modulation H03C 7/02) [2013-01]
H01Q 15/0006
.
{Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices (H01Q 15/12, H01Q 15/22, H01Q 15/24 take precedence)} [2013-01]
H01Q 15/0013
. .
{said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective} [2013-01]
H01Q 15/002
. . .
{said selective devices being reconfigurable or tunable, e.g. using switches or diodes} [2013-01]
H01Q 15/0026
. . .
{said selective devices having a stacked geometry or having multiple layers} [2013-01]
H01Q 15/0033
. . .
{used for beam splitting or combining, e.g. acting as a quasi-optical multiplexer (H01Q 19/191 and H01Q 19/195 take precedence)} [2013-01]
H01Q 15/004
. . .
{using superconducting materials or magnetised substrates} [2013-01]
H01Q 15/0046
. . .
{Theoretical analysis and design methods of such selective devices} [2013-01]
H01Q 15/0053
. .
{Selective devices used as spatial filter or angular sidelobe filter} [2013-01]
H01Q 15/006
. .
{Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces} [2013-01]
H01Q 15/0066
. . .
{said selective devices being reconfigurable, tunable or controllable, e.g. using switches} [2013-01]
H01Q 15/0073
. . .
{said selective devices having corrugations} [2013-01]
H01Q 15/008
. . .
{said selective devices having Sievenpipers' mushroom elements} [2013-01]
H01Q 15/0086
. .
{said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials} [2013-01]
H01Q 15/0093
. .
{having a fractal shape} [2013-01]
H01Q 15/02
.
Refracting or diffracting devices, e.g. lens, prism [2013-01]
H01Q 15/04
. .
comprising wave-guiding channel or channels bounded by effective conductive surfaces substantially perpendicular to the electric vector of the wave, e.g. parallel-plate waveguide lens [2013-01]
H01Q 15/06
. .
comprising plurality of wave-guiding channels of different length [2013-01]
H01Q 15/08
. .
formed of solid dielectric material [2013-01]
H01Q 15/10
. .
comprising three-dimensional array of impedance discontinuities, e.g. holes in conductive surfaces or conductive discs forming artificial dielectric (leaky-waveguide aerials H01Q 13/28) [2013-01]
H01Q 15/12
. .
functioning also as polarisation filter {(polarisation converters H01Q 15/242)} [2013-01]
H01Q 15/14
.
Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q 1/526; radar-reflecting targets in general F41J 2/00)} [2013-01]
H01Q 15/141
. .
{Apparatus or processes specially adapted for manufacturing reflecting surfaces} [2013-01]
H01Q 15/142
. . .
{using insulating material for supporting the reflecting surface} [2013-01]
H01Q 15/144
. . . .
{with a honeycomb, cellular or foamed sandwich structure} [2013-01]
H01Q 15/145
. .
{comprising a plurality of reflecting particles, e.g. radar chaff (missiles of the signal type provided with means for disseminating radar-reflecting chaff F42B 12/70)} [2013-01]
H01Q 15/147
. .
{provided with means for controlling or monitoring the shape of the reflecting surface (for scanning H01Q 3/01; aerials or aerial systems providing multiple beamwidths H01Q 25/002)} [2013-01]
H01Q 15/148
. .
{with means for varying the reflecting properties (H01Q 15/147 takes precedence)} [2013-01]
H01Q 15/16
. .
Curved in two dimensions, e.g. paraboloidal [2013-01]
H01Q 15/161
. . .
{Collapsible reflectors} [2013-01]
H01Q 15/162
. . . .
{composed of a plurality of rigid panels} [2013-01]
H01Q 15/163
. . . .
{inflatable} [2013-01]
H01Q 15/165
. . .
{composed of a plurality of rigid panels (collapsible H01Q 15/161)} [2013-01]
H01Q 15/166
. . . .
{sector shaped} [2013-01]
H01Q 15/167
. . . .
{comprising a gap between adjacent panels or group of panels, e.g. stepped reflectors} [2013-01]
H01Q 15/168
. . .
{Mesh reflectors mounted on a non-collapsible frame} [2013-01]
H01Q 15/18
. .
comprising plurality of mutually inclined plane surfaces, e.g. corner reflector {(H01Q 15/16 takes precedence)} [2013-01]
H01Q 15/20
. . .
Collapsible reflectors [2013-01]
H01Q 15/22
. .
functioning also as polarisation filter {(in combination with polarising devices H01Q 15/24)} [2013-01]
H01Q 15/23
.
Combinations of reflecting surfaces with refracting or diffracting devices [2013-01]
H01Q 15/24
.
Polarising devices; Polarisation filters (devices functioning simultaneously both as polarisation filters and as refracting or diffracting devices or as reflectors H01Q 15/12, H01Q 15/22) [2013-01]
H01Q 15/242
. .
{Polarisation converters} [2013-01]
H01Q 15/244
. . .
{converting a linear polarised wave into a circular polarised wave (guided wave H01P 1/17)} [2013-01]
H01Q 15/246
. . .
{rotating the plane of polarisation of a linear polarised wave (guided wave H01P 1/165)} [2013-01]
H01Q 15/248
. . . .
{using a reflecting surface, e.g. twist reflector (combination with a polarisation filter in dual reflector antennas H01Q 19/195)} [2013-01]
H01Q 17/00
Devices for absorbing waves radiated from an aerial; Combinations of such devices with active aerial elements or systems {(anechoic chambers G01R 29/105)} [2013-01]
H01Q 17/001
.
{for modifying the directional characteristic of an aerial} [2013-01]
H01Q 17/002
.
{using short elongated elements as dissipative material, e.g. metallic threads or flake-like particles} [2013-01]
H01Q 17/004
.
{using non-directional dissipative particles, e.g. ferrite powders (H01Q 17/005 takes precedence; flake-like H01Q 17/002)} [2013-01]
H01Q 17/005
.
{using woven or wound filaments; impregnated nets or clothes} [2013-01]
H01Q 17/007
.
{with means for controlling the absorption} [2013-01]
H01Q 17/008
.
{with a particular shape (H01Q 17/007 takes precedence)} [2013-01]
H01Q 19/00
Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic {(combination of horns with slotted waveguide array H01Q 13/0233)} [2013-01]
H01Q 19/005
.
{Patch antenna using one or more coplanar parasitic elements} [2013-01]
H01Q 19/02
.
Details {(fastening of an element on a boom H01Q 1/1228)} [2013-01]
H01Q 19/021
. .
{Means for reducing undesirable effects} [2013-01]
H01Q 19/022
. . .
{for reducing the edge scattering of reflectors} [2013-01]
H01Q 19/023
. . .
{for reducing the scattering of mounting structures, e.g. of the struts} [2013-01]
H01Q 19/025
. . .
{for optimizing the matching of the primary feed, e.g. vertex plates} [2013-01]
H01Q 19/026
. . .
{for reducing the primary feed spill-over} [2013-01]
H01Q 19/027
. . .
{for compensating or reducing aperture blockage (offset feeding H01Q 19/132, H01Q 19/192)} [2013-01]
H01Q 19/028
. . .
{for reducing the cross polarisation} [2013-01]
H01Q 19/04
. .
Means for collapsing H-aerials or Yagi aerials [2013-01]
H01Q 19/06
.
using refracting or diffracting devices, e.g. lens {(radome H01Q 1/42)} [2013-01]
H01Q 19/062
. .
{for focusing} [2013-01]
H01Q 19/065
. . .
{Zone plate type antennas} [2013-01]
H01Q 19/067
. .
{using a hologram} [2013-01]
H01Q 19/08
. .
for modifying the radiation pattern of a radiating horn in which it is located {(corrugated horns H01Q 13/0208; producing a circular polarisation H01Q 13/0241)} [2013-01]
H01Q 19/09
. .
wherein the primary active element is coated with or embedded in a dielectric or magnetic material (protective material H01Q 1/40; with variable characteristics H01Q 3/44) [2013-01]
H01Q 19/10
.
using reflecting surfaces [2013-01]
H01Q 19/102
. .
{wherein the surfaces are of convex toroïdal shape (biconical horns H01Q 13/04)} [2013-01]
H01Q 19/104
. .
{using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas (periscopic fed Cassegrain antennas H01Q 19/191; passive relays H04B 7/145)} [2013-01]
H01Q 19/106
. .
{using two or more intersecting plane surfaces, e.g. corner reflector antennas} [2013-01]
H01Q 19/108
. .
{Combination of a dipole with a plane reflecting surface (H01Q 19/106 takes precedence; strip line H01Q 9/065)} [2013-01]
H01Q 19/12
. .
wherein the surfaces are concave (H01Q 19/18 takes precedence) [2013-01]
H01Q 19/13
. . .
the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination (H01Q 19/15 takes precedence) [2013-01]
H01Q 19/132
. . . .
{Horn reflector antennas; Off-set feeding} [2013-01]
H01Q 19/134
. . . .
{Rear-feeds; Splash plate feeds} [2013-01]
H01Q 19/136
. . . . .
{cross-polarised} [2013-01]
H01Q 19/138
. . . .
{Parallel-plate feeds, e.g. pill-box, cheese aerials} [2013-01]
H01Q 19/15
. . .
the primary radiating source being a line source, e.g. leaky waveguide aerials [2013-01]
H01Q 19/17
. . .
the primary radiating source comprising two or more radiating elements (H01Q 19/15, H01Q 25/00 take precedence) [2013-01]
H01Q 19/175
. . . .
{arrayed along the focal line of a cylindrical focusing surface} [2013-01]
H01Q 19/18
. .
having two or more spaced reflecting surfaces ({surfaces of convex toroïdal shape H01Q 19/102; using a deflecting plane mirror H01Q 19/104; splash plate feeds H01Q 19/134 } ; producing pencil beam by two cylindrical reflectors with their focal lines orthogonally disposed H01Q 19/20) [2013-01]
H01Q 19/185
. . .
wherein the surfaces are plane [2013-01]
H01Q 19/19
. . .
comprising one main concave reflecting surface associated with an auxiliary reflecting surface [2013-01]
H01Q 19/191
. . . .
{wherein the primary active element uses one or more deflecting surfaces, e.g. beam waveguide feeds} [2013-01]
H01Q 19/192
. . . .
{with dual offset reflectors} [2013-01]
H01Q 19/193
. . . .
{with feed supported subreflector (splash plate feeds H01Q 19/134)} [2013-01]
H01Q 19/195
. . . .
wherein a reflecting surface acts also as a polarisation filter or a polarising device [2013-01]
H01Q 19/20
.
Producing pencil beam by two cylindrical focusing devices with their focal lines orthogonally disposed [2013-01]
H01Q 19/22
.
using a secondary device in the form of a single substantially straight conductive element [2013-01]
H01Q 19/24
. .
the primary active element being centre-fed and substantially straight, e.g. H-aerial [2013-01]
H01Q 19/26
. .
the primary active element being end-fed and elongated [2013-01]
H01Q 19/28
.
using a secondary device in the form of two or more substantially straight conductive elements (log-periodic aerials H01Q 11/10; constituting a reflecting surface H01Q 19/10) [2013-01]
H01Q 19/30
. .
the primary active element being centre-fed and substantially straight, e.g. Yagi-aerial [2013-01]
H01Q 19/32
. .
the primary active element being end-fed and elongated [2013-01]
H01Q 21/00
Aerial arrays or systems (producing a beam the orientation or the shape of the directional pattern of which can be changed or varied H01Q 3/00; {combination of imbricated aerials or arrays operating on different wavebands H01Q 5/40; } electrically-long aerials H01Q 11/00) [2015-01]
NOTE

  • This group includes:
    • arrays comprising two or more individually energised similar active aerial units spaced apart;
    • combinations of different types of active aerials or arrays;
    • combinations of substantially independant non-interacting active aerials or arrays.
H01Q 21/0006
.
{Particular feeding systems} [2013-01]
H01Q 21/0012
. .
{Radial guide fed arrays} [2013-01]
H01Q 21/0018
. .
{Space- fed arrays} [2013-01]
H01Q 21/0025
. .
{Modular arrays} [2013-01]
H01Q 21/0031
. .
{Parallel-plate fed arrays; Lens-fed arrays (multibeam arrays H01Q 25/008)} [2013-01]
H01Q 21/0037
. .
{linear waveguide fed arrays} [2013-01]
H01Q 21/0043
. . .
{Slotted waveguides (combination with horns H01Q 13/0233)} [2013-01]
H01Q 21/005
. . . .
{Slotted waveguides arrays} [2013-01]
H01Q 21/0056
. . . . .
{Conically or cylindrically arrayed} [2013-01]
H01Q 21/0062
. . . .
{the slots being disposed around the feeding waveguide} [2013-01]
H01Q 21/0068
. . .
{Dielectric waveguide fed arrays} [2013-01]
H01Q 21/0075
. .
{Stripline fed arrays (H01Q 21/065 takes precedence)} [2013-01]
H01Q 21/0081
. . .
{using suspended striplines} [2013-01]
H01Q 21/0087
.
{Apparatus or processes specially adapted for manufacturing antenna arrays (manufacturing waveguides H01P 11/00)} [2013-01]
H01Q 21/0093
. .
{Monolithic arrays} [2013-01]
H01Q 21/06
.
Arrays of individually energised active aerial units similarly polarised and spaced apart [2013-01]
H01Q 21/061
. .
{Two dimensional planar arrays} [2013-01]
H01Q 21/062
. . .
{using dipole aerials; (H01Q 21/067, H01Q 21/068 take precedence)} [2013-01]
H01Q 21/064
. . .
{using horn or slot aerials (slotted waveguides arrays H01Q 21/005)} [2013-01]
H01Q 21/065
. . .
{Patch antenna array} [2013-01]
H01Q 21/067
. . .
{using endfire radiating aerial units transverse to the plane of the array} [2013-01]
H01Q 21/068
. . .
{using parallel coplanar travelling wave or leaky wave aerial units (H01Q 21/065 takes precedence)} [2013-01]
H01Q 21/08
. .
the units being spaced along or adjacent to a rectilinear path {(waveguide fed H01Q 21/0037)} [2013-01]
H01Q 21/10
. . .
Collinear arrangements of substantially straight elongated conductive units [2013-01]
H01Q 21/12
. . .
Parallel arrangements of substantially straight elongated conductive units (travelling-wave aerials comprising transmission line loaded with transverse elements, e.g. "fishbone" aerial H01Q 11/04) [2013-01]
H01Q 21/14
. . . .
Adcock aerials [2013-01]
H01Q 21/16
. . . . .
U-type [2013-01]
H01Q 21/18
. . . . .
H-type [2013-01]
H01Q 21/20
. .
the units being spaced along or adjacent to a curvilinear path {(slotted waveguide arrays H01Q 21/005; circularly or helically slotted waveguides H01Q 21/0062)} [2013-01]
H01Q 21/205
. . .
{providing an omnidirectional coverage (turnstile aerials H01Q 21/26)} [2013-01]
H01Q 21/22
. .
Aerial units of the array energised non-uniformly in amplitude or phase, e.g. tapered array, binomial array [2013-01]
H01Q 21/225
. . .
{Finite focus antenna arrays} [2013-01]
H01Q 21/24
.
Combinations of aerial elements or aerial units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q 9/0428; circularly polarised horns H01Q 13/0241; cross-polarised horns H01Q 13/0258; polarisation converters H01Q 15/242; cross-polarised rear feeds H01Q 19/136; crossed polarisation dual antenna H01Q 25/001)} [2013-01]
H01Q 21/245
. .
{provided with means for varying the polarisation (polarising devices H01Q 15/24; tracking by comparing linear polarisation compounds G01S 3/146; reducing depolarisation effects H04B 7/00 polarisation diversity H04B 7/10)} [2013-01]
H01Q 21/26
. .
Turnstile or like aerials comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre [2013-01]
H01Q 21/28
.
Combinations of substantially independent non-interacting aerial units or systems {(multiple beam H01Q 25/00)} [2013-01]
H01Q 21/29
.
Combinations of different interacting aerial units for giving a desired directional characteristic (H01Q 25/00 takes precedence) [2013-01]
H01Q 21/293
. .
{one unit or more being an array of identical aerial elements (adaptive arrays H01Q 3/2605)} [2013-01]
H01Q 21/296
. . .
{Multiplicative arrays} [2013-01]
H01Q 21/30
.
Combinations of separate aerial units operating in different wavebands and connected to a common feeder system [2013-01]
H01Q 23/00
Aerials with active circuits or circuit elements integrated within them or attached to them [2013-01]
NOTE

  • Group H01Q 23/00 includes only such combinations in which the type of aerial or aerial element is immaterial. Combinations with a particular type of aerial are classified in the group appropriate to that type.
H01Q 25/00
Aerials or aerial systems providing at least two radiating patterns (arrangements for changing or varying the orientation or the shape of the directional pattern H01Q 3/00) [2013-01]
H01Q 25/001
.
{Crossed polarisation dual antennas (orthomode horns H01Q 13/0258; cross-polarised rear feeds H01Q 19/136; orthomode transducers H01P 1/161)} [2013-01]
H01Q 25/002
.
{providing at least two patterns of different beamwidth; Variable beamwidth antennas} [2013-01]
H01Q 25/004
.
{providing two or four symmetrical beams for Janus application} [2013-01]
H01Q 25/005
.
{providing two patterns of opposite direction; back to back antennas (H01Q 25/004 takes precedence)} [2013-01]
H01Q 25/007
.
{using two or more primary active elements in the focal region of a focusing device (for operation on different wavebands H01Q 5/22)} [2015-01]
H01Q 25/008
. .
{lens fed multibeam arrays} [2013-01]
H01Q 25/02
.
providing sum and difference patterns (multimode aerials H01Q 25/04) [2013-01]
H01Q 25/04
.
Multimode aerials {(corrugated horns H01Q 13/0208)} [2013-01]