1. CPC Sections
  2. CPC Section H
  3. CPC Class H01
  4. CPC Subclass H01P
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CPC
COOPERATIVE PATENT CLASSIFICATION
​​
H01P
WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B) [2021-01]
NOTE

  • In this subclass, the following expression is used with the meaning indicated :
    • "waveguide type" as applied to transmission lines includes only high-frequency coaxial cables or Lecher lines, and as applied to resonators, delay lines, or other devices includes all devices having distributed inductance and capacitance.
WARNING

  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
H01P 1/00
Auxiliary devices (coupling devices of the waveguide type H01P 5/00) [2013-01]
H01P 1/005
.
{Diode mounting means} [2013-01]
H01P 1/02
.
Bends; Corners; Twists [2013-01]
H01P 1/022
. .
{in waveguides of polygonal cross-section (H01P 1/065 takes precedence)} [2013-01]
H01P 1/025
. . .
{in the E-plane} [2013-01]
H01P 1/027
. . .
{in the H-plane} [2013-01]
H01P 1/04
.
Fixed joints [2021-01]
H01P 1/042
. .
{Hollow waveguide joints} [2013-01]
H01P 1/045
. .
{Coaxial joints} [2013-01]
H01P 1/047
. .
{Strip line joints} [2013-01]
H01P 1/06
.
Movable joints, e.g. rotating joints [2013-01]
H01P 1/061
. .
{the relative movement being a translation along an axis common to at least two rectilinear parts, e.g. expansion joints} [2013-01]
H01P 1/062
. .
{the relative movement being a rotation} [2013-01]
H01P 1/063
. . .
{with a limited angle of rotation} [2013-01]
H01P 1/064
. . . .
{the axis of rotation being perpendicular to the transmission path, e.g. hinge joint} [2013-01]
H01P 1/065
. . . .
{the axis of rotation being parallel to the transmission path, e.g. stepped twist} [2013-01]
H01P 1/066
. . .
{with an unlimited angle of rotation} [2013-01]
H01P 1/067
. . . .
{the energy being transmitted in only one line located on the axis of rotation} [2013-01]
H01P 1/068
. . . .
{the energy being transmitted in at least one ring-shaped transmission line located around the axis of rotation, e.g. "around the mast" rotary joint (H01P 1/069 takes precedence; coaxial line with solid inner conductor H01P 1/067)} [2013-01]
H01P 1/069
. . . .
{the energy being transmitted in at least one ring-shaped transmission line located around an axial transmission line; Concentric coaxial systems} [2013-01]
H01P 1/08
.
Dielectric windows [2021-01]
H01P 1/10
.
for switching or interrupting {(in systems using reflection or reradiation of radio, acoustic or other waves G01S 7/034)} [2013-01]
H01P 1/11
. .
by ferromagnetic devices [2013-01]
H01P 1/12
. .
by mechanical chopper [2013-01]
H01P 1/122
. . .
{Waveguide switches} [2013-01]
H01P 1/125
. . .
{Coaxial switches} [2013-01]
H01P 1/127
. . .
{Strip line switches} [2013-01]
H01P 1/14
. .
by electric discharge devices (discharge devices H01J 17/64) [2013-01]
H01P 1/15
. .
by semiconductor devices [2013-01]
H01P 1/16
.
for mode selection, e.g. mode suppression or mode promotion; for mode conversion [2021-01]
H01P 1/161
. .
sustaining two independent orthogonal modes, e.g. orthomode transducer {(combining or separating polarisations and frequencies H01P 1/2131)} [2013-01]
H01P 1/162
. .
absorbing spurious or unwanted modes of propagation [2013-01]
H01P 1/163
. .
specifically adapted for selection or promotion of the TE01 circular-electric mode [2015-12]
H01P 1/165
.
for rotating the plane of polarisation [2013-01]
H01P 1/17
. .
for producing a continuously rotating polarisation, e.g. circular polarisation [2013-01]
H01P 1/171
. . .
{using a corrugated or ridged waveguide section} [2013-01]
H01P 1/172
. . .
{using a dielectric element} [2013-01]
H01P 1/173
. . .
{using a conductive element} [2013-01]
H01P 1/174
. . .
{using a magnetic element (H01P 1/175 takes precedence)} [2013-01]
H01P 1/175
. .
using Faraday rotators [2013-01]
H01P 1/18
.
Phase-shifters (H01P 1/165 takes precedence) [2021-01]
H01P 1/181
. .
{using ferroelectric devices} [2013-01]
H01P 1/182
. .
{Waveguide phase-shifters (H01P 1/181, H01P 1/185, H01P 1/19 take precedence)} [2013-01]
H01P 1/183
. .
{Coaxial phase-shifters (H01P 1/181, H01P 1/185, H01P 1/19 take precedence)} [2013-01]
H01P 1/184
. .
{Strip line phase-shifters (H01P 1/181, H01P 1/185, H01P 1/19 take precedence)} [2013-01]
H01P 1/185
. .
using a diode or a gas filled discharge tube [2013-01]
H01P 1/19
. .
using a ferromagnetic device [2013-01]
H01P 1/195
. . .
having a toroidal shape [2013-01]
H01P 1/20
.
Frequency-selective devices, e.g. filters [2021-01]
H01P 1/2002
. .
{Dielectric waveguide filters (H01P 1/212, H01P 1/213, H01P 1/215, H01P 1/219 take precedence)} [2013-01]
H01P 1/2005
. .
{Electromagnetic photonic bandgaps [EPB], or photonic bandgaps [PBG]} [2013-01]
H01P 1/2007
. .
{Filtering devices for biasing networks or DC returns} [2013-01]
H01P 1/201
. .
Filters for transverse electromagnetic waves (H01P 1/212, H01P 1/213, H01P 1/215, H01P 1/219 take precedence) [2013-01]
H01P 1/2013
. . .
{Coplanar line filters} [2013-01]
H01P 1/2016
. . .
{Slot line filters; Fin line filters} [2013-01]
H01P 1/202
. . .
Coaxial filters (cascaded coaxial cavities H01P 1/205) [2013-01]
H01P 1/203
. . .
Strip line filters [2013-01]
H01P 1/20309
. . . .
{with dielectric resonator} [2013-01]
H01P 1/20318
. . . . .
{with dielectric resonators as non-metallised opposite openings in the metallised surfaces of a substrate} [2013-01]
H01P 1/20327
. . . .
{Electromagnetic interstage coupling} [2013-01]
H01P 1/20336
. . . . .
{Comb or interdigital filters} [2013-01]
H01P 1/20345
. . . . . .
{Multilayer filters} [2013-01]
H01P 1/20354
. . . . .
{Non-comb or non-interdigital filters} [2013-01]
H01P 1/20363
. . . . . .
{Linear resonators} [2013-01]
H01P 1/20372
. . . . . .
{Hairpin resonators} [2013-01]
H01P 1/20381
. . . . . .
{Special shape resonators} [2013-01]
H01P 1/2039
. . . .
{Galvanic coupling between Input/Output} [2013-01]
H01P 1/205
. . .
Comb or interdigital filters; Cascaded coaxial cavities (H01P 1/203 takes precedence) [2013-01]
H01P 1/2053
. . . .
{the coaxial cavity resonators being disposed parall to each other} [2013-01]
H01P 1/2056
. . . .
{Comb filters or interdigital filters with metallised resonator holes in a dielectric block} [2013-01]
H01P 1/207
. .
Hollow waveguide filters (H01P 1/212, H01P 1/213, H01P 1/215, H01P 1/219 take precedence) [2013-01]
H01P 1/208
. . .
Cascaded cavities; Cascaded resonators inside a hollow waveguide structure (H01P 1/205 takes precedence) [2013-01]
H01P 1/2082
. . . .
{with multimode resonators (H01P 1/2086 takes precedence)} [2013-01]
H01P 1/2084
. . . .
{with dielectric resonators} [2013-01]
H01P 1/2086
. . . . .
{multimode} [2013-01]
H01P 1/2088
. . . .
{Integrated in a substrate} [2013-01]
H01P 1/209
. . .
comprising one or more branching arms or cavities wholly outside the main waveguide [2013-01]
H01P 1/211
. . .
Waffle-iron filters; Corrugated structures [2013-01]
H01P 1/212
. .
suppressing or attenuating harmonic frequencies (H01P 1/215 takes precedence) [2013-01]
H01P 1/213
. .
combining or separating two or more different frequencies (H01P 1/215 takes precedence) [2013-01]
H01P 1/2131
. . .
{with combining or separating polarisations} [2013-01]
H01P 1/2133
. . .
{using coaxial filters (H01P 1/2131, H01P 1/2136 take precedence)} [2013-01]
H01P 1/2135
. . .
{using strip line filters (H01P 1/2131 takes precedence)} [2013-01]
H01P 1/2136
. . .
{using comb or interdigital filters; using cascaded coaxial cavities (H01P 1/2131, H01P 1/2135 take precedence)} [2013-01]
H01P 1/2138
. . .
{using hollow waveguide filters (H01P 1/2131 takes precedence)} [2013-01]
H01P 1/215
. .
using ferromagnetic material [2013-01]
H01P 1/217
. . .
the ferromagnetic material acting as a tuning element in resonators [2013-01]
H01P 1/218
. . .
the ferromagnetic material acting as a frequency selective coupling element, e.g. YIG-filters [2013-01]
H01P 1/219
. .
Evanescent mode filters [2013-01]
H01P 1/22
.
Attenuating devices (dissipative terminating devices H01P 1/26) [2013-01]
H01P 1/222
. .
{Waveguide attenuators (H01P 1/23 takes precedence)} [2013-01]
H01P 1/225
. .
{Coaxial attenuators (H01P 1/23 takes precedence)} [2013-01]
H01P 1/227
. .
{Strip line attenuators (H01P 1/23 takes precedence)} [2013-01]
H01P 1/23
. .
using ferromagnetic material [2013-01]
H01P 1/24
.
Terminating devices [2013-01]
H01P 1/26
. .
Dissipative terminations [2013-01]
H01P 1/262
. . .
{the dissipative medium being a liquid or being cooled by a liquid} [2013-01]
H01P 1/264
. . .
{Waveguide terminations (H01P 1/262 takes precedence)} [2013-01]
H01P 1/266
. . .
{Coaxial terminations (H01P 1/262 takes precedence)} [2013-01]
H01P 1/268
. . .
{Strip line terminations (H01P 1/262 takes precedence)} [2013-01]
H01P 1/28
. .
Short-circuiting plungers [2021-01]
H01P 1/30
.
for compensation of, or protection against, temperature or moisture effects {; for improving power handling capability (H01P 1/04, H01P 1/08 take precedence)} [2017-08]
H01P 1/32
.
Non-reciprocal transmission devices (H01P 1/02 - H01P 1/30 take precedence) [2016-05]
H01P 1/36
. .
Isolators [2013-01]
H01P 1/362
. . .
{Edge-guided mode devices} [2013-01]
H01P 1/365
. . .
Resonance absorption isolators [2013-01]
H01P 1/37
. . .
Field displacement isolators [2013-01]
H01P 1/375
. . .
using Faraday rotators [2013-01]
H01P 1/38
. .
Circulators [2013-01]
H01P 1/383
. . .
Junction circulators, e.g. Y-circulators [2013-01]
H01P 1/387
. . . .
Strip line circulators [2013-01]
H01P 1/39
. . . .
Hollow waveguide circulators [2013-01]
H01P 1/393
. . .
using Faraday rotators [2013-01]
H01P 1/397
. . .
using non- reciprocal phase shifters (H01P 1/393 takes precedence) [2013-01]
H01P 3/00
Waveguides; Transmission lines of the waveguide type [2013-01]
H01P 3/003
.
{Coplanar lines} [2013-01]
H01P 3/006
. .
{Conductor backed coplanar waveguides} [2013-01]
H01P 3/02
.
with two longitudinal conductors [2013-01]
H01P 3/023
. .
{Fin lines; Slot lines} [2013-01]
H01P 3/026
. .
{Coplanar striplines [CPS]} [2013-01]
H01P 3/04
. .
Lines formed as Lecher wire pairs [2013-01]
​
H01P 3/06
. .
Coaxial lines [2021-01]
NOTE

  • This subgroup is only used for documents disclosing typical HF-features of coaxial cables, e.g. propagation of non-TEM-modes, multimoding, oversized coaxial cables, particular cross-section adapted for HF-propagation
H01P 3/08
. .
Microstrips; Strip lines [2013-01]
H01P 3/081
. . .
{Microstriplines} [2017-08]
H01P 3/082
. . . .
{Multilayer dielectric} [2013-01]
H01P 3/084
. . . .
{Suspended microstriplines} [2017-08]
H01P 3/085
. . .
{Triplate lines} [2013-01]
H01P 3/087
. . . .
{Suspended triplate lines} [2013-01]
H01P 3/088
. . .
{Stacked transmission lines} [2013-01]
H01P 3/10
.
Wire waveguides, i.e. with a single solid longitudinal conductor [2013-01]
H01P 3/12
.
Hollow waveguides (H01P 3/20 takes precedence) [2013-01]
H01P 3/121
. .
{integrated in a substrate} [2013-01]
H01P 3/122
. .
{Dielectric loaded (not air)} [2013-01]
H01P 3/123
. .
with a complex or stepped cross-section, e.g. ridged or grooved waveguides (H01P 3/14 takes precedence) [2013-01]
H01P 3/127
. .
with a circular, elliptic, or parabolic cross-section [2013-01]
H01P 3/13
. .
specially adapted for transmission of the TE01 circular-electric mode {(selection, promotion H01P 1/163)} [2013-01]
H01P 3/14
. .
flexible [2013-01]
H01P 3/16
.
Dielectric waveguides, i.e. without a longitudinal conductor [2013-01]
H01P 3/165
. .
{Non-radiating dielectric waveguides} [2013-01]
H01P 3/18
.
built-up from several layers to increase operating surface, i.e. alternately conductive and dielectric layers [2013-01]
H01P 3/20
.
Quasi-optical arrangements for guiding a wave, e.g. focusing by dielectric lenses [2018-05]
H01P 5/00
Coupling devices of the waveguide type [2021-01]
H01P 5/02
.
with invariable factor of coupling (H01P 5/12 takes precedence {choke joints H01P 1/04, H01P 1/06}) [2013-01]
H01P 5/022
. .
{Transitions between lines of the same kind and shape, but with different dimensions} [2013-01]
H01P 5/024
. . .
{between hollow waveguides} [2013-01]
H01P 5/026
. . .
{between coaxial lines} [2013-01]
H01P 5/028
. . .
{between strip lines} [2013-01]
H01P 5/04
.
with variable factor of coupling [2013-01]
H01P 5/08
.
for linking dissimilar lines or devices (H01P 1/16, H01P 5/04 take precedence; linking lines of the same kind but with different dimensions H01P 5/02) [2013-01]
H01P 5/082
. .
{Transitions between hollow waveguides of different shape, e.g. between a rectangular and a circular waveguide} [2013-01]
H01P 5/085
. .
{Coaxial-line/strip-line transitions} [2013-01]
H01P 5/087
. .
{Transitions to a dielectric waveguide} [2013-01]
H01P 5/10
. .
for coupling balanced lines or devices with unbalanced lines or devices [2024-01]
H01P 5/1007
. . .
{Microstrip transitions to Slotline or finline} [2013-01]
H01P 5/1015
. . .
{Coplanar line transitions to Slotline or finline} [2013-01]
H01P 5/1022
. . .
{Transitions to dielectric waveguide} [2013-01]
H01P 5/103
. . .
Hollow-waveguide/coaxial-line transitions [2013-01]
H01P 5/107
. . .
Hollow-waveguide/strip-line transitions [2013-01]
H01P 5/12
.
Coupling devices having more than two ports (H01P 5/04 takes precedence) [2013-01]
H01P 5/16
. .
Conjugate devices, i.e. devices having at least one port decoupled from one other port [2013-01]
H01P 5/18
. . .
consisting of two coupled guides, e.g. directional couplers [2013-01]
H01P 5/181
. . . .
{the guides being hollow waveguides} [2013-01]
H01P 5/182
. . . . .
{the waveguides being arranged in parallel} [2013-01]
H01P 5/183
. . . .
{at least one of the guides being a coaxial line} [2013-01]
H01P 5/184
. . . .
{the guides being strip lines or microstrips} [2013-01]
H01P 5/185
. . . . .
{Edge coupled lines} [2013-01]
H01P 5/186
. . . . . .
{Lange couplers} [2013-01]
H01P 5/187
. . . . .
{Broadside coupled lines} [2013-01]
H01P 5/188
. . . .
{the guides being dielectric waveguides} [2013-01]
H01P 5/19
. . .
of the junction type [2013-01]
H01P 5/20
. . . .
Magic-T junctions [2013-01]
H01P 5/22
. . . .
Hybrid ring junctions [2013-01]
H01P 5/222
. . . . .
{180° rat race hybrid rings} [2013-01]
H01P 5/225
. . . . .
{180° reversed phase hybrid rings} [2013-01]
H01P 5/227
. . . . .
{90° branch line couplers} [2013-01]
H01P 7/00
Resonators of the waveguide type [2021-01]
H01P 7/005
.
{Helical resonators; Spiral resonators} [2013-01]
H01P 7/02
.
Lecher resonators [2013-01]
H01P 7/04
.
Coaxial resonators [2013-01]
H01P 7/06
.
Cavity resonators [2013-01]
H01P 7/065
. .
{integrated in a substrate} [2013-01]
H01P 7/08
.
Strip line resonators [2013-01]
H01P 7/082
. .
{Microstripline resonators (H01P 7/088 takes precedence)} [2013-01]
H01P 7/084
. .
{Triplate line resonators (H01P 7/088 takes precedence)} [2013-01]
H01P 7/086
. .
{Coplanar waveguide resonators (H01P 7/088 takes precedence)} [2013-01]
H01P 7/088
. .
{Tunable resonators} [2013-01]
H01P 7/10
.
Dielectric resonators [2013-01]
H01P 7/105
. .
{Multimode resonators} [2013-01]
H01P 9/00
Delay lines of the waveguide type [2021-01]
H01P 9/003
.
{Delay equalizers} [2013-01]
H01P 9/006
.
{Meander lines} [2013-01]
H01P 9/02
.
Helical lines [2013-01]
H01P 9/04
.
Interdigital lines [2013-01]
H01P 11/00
Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type [2021-01]
H01P 11/001
.
{Manufacturing waveguides or transmission lines of the waveguide type} [2013-01]
H01P 11/002
. .
{Manufacturing hollow waveguides} [2013-01]
H01P 11/003
. .
{Manufacturing lines with conductors on a substrate, e.g. strip lines, slot lines} [2013-01]
H01P 11/005
. .
{Manufacturing coaxial lines} [2013-01]
H01P 11/006
. .
{Manufacturing dielectric waveguides} [2013-01]
H01P 11/007
.
{Manufacturing frequency-selective devices (resonators H01P 11/008)} [2013-01]
H01P 11/008
.
{Manufacturing resonators} [2013-01]