Manual of U.S. Patent Classification
as of June 30, 2000

Class
343
COMMUNICATIONS: RADIO WAVE ANTENNAS

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> COMMUNICATIONS: RADIO WAVE ANTENNAS
700R		ANTENNAS
701		. Having electric space discharge device
702		. With radio cabinet
703		. Measuring signal energy
704		. With ice clearer or preventer
705		. With aircraft
706		. . Lighter-than-air device
707		. . Trailing type
708		. . Aircraft part of active antenna or vice versa
709		. Waterborne (e.g., buoyant or with watercraft)
710		. . Watercraft part of active antenna or vice versa
711		. With vehicle
712		. . Vehicle part of active antenna or vice versa
713		. . Supported by vehicle body
714		. . . Antenna adjustable from inside body
715		. . . Rod type
716		. . . Running board
717		. . Supported underneath vehicle
718		. Body-attached or connected
719		. Buried underground or submerged under water
720		. Combined with diverse-type art device
721		. . Light
722		. With lumped reactance filter in active antenna
723		. Single adjustable length electrically long linear antenna
724		. Convertible to different antennas
725		. Plural separate diverse type
726		. . Including balanced doublet and loop-type antennas
727		. . Including balanced doublet-type antenna
728		. . Including loop-type antenna
729		. Plural diverse-type antennas using same active element
730		. . Including balanced doublet-type antenna
731		. Traveling wave type
732		. . Circular loop
733		. . Rhombic
734		. . . With feedback
735		. . Balanced V
736		. . Inverted V
737		. . Plural
738		. . With reflecting transformer
739		. With terminating resistance at open end
740		. . Balanced type
741		. High frequency type loops
742		. . Plural
743		. . Feed coupling at spaced points on loop
744		. . With series reactance in loop
745		. With variable reactance for tuning antenna
746		. . Slot type
747		. . Balanced doublet type
748		. . Loop type
749		. With lumped reactance for loading antenna
750		. . Adjustable reactance
751		. . Plural antennas
752		. . Reactance at free end of active antenna
753		. With spaced or external radio wave refractor (e.g., lens)
754		. . With scanning, sweeping, or orienting
755		. . With reflector
756		. With polarization filter or converter
757		. With means for moving directive antenna for scanning, sweeping or orienting
758		. . Plural relatively movable
759		. . Spiral motion
760		. . With signal, indicator or alarm
761		. . Reflector and antenna relatively movable
762		. . Wave guide type antenna
763		. . Rotary or rotary oscillatory motion
764		. . . Loop-type antenna
765		. . . In different planes
766		. . . Motor-driven
767		. Slot type
768		. . With periodic control of slot or coupling
769		. . Ring-shaped slot
770		. . Plural
771		. . . With wave guide coupling
772		. Wave guide type (e.g., horn)
773		. . Biconical horn type
774		. . . Stacked
775		. . . With reflector
776		. . Plural
777		. . . With control of individual antenna (e.g., lobe switching or steering)
778		. . . With phasing
779		. . . With reflector
780		. . "Pillbox" type
781R		. . With external reflector or director
782		. . . With means reducing re-radiation into active antenna
781P		. . . Plural reflectors
781CA		. . . With main and subreflector (Casse-grain type)
783		. . With internal-wave refraction means
784		. . With closure
785		. . Dielectric type (e.g., polystyrene rod)
786		. . With horn
787		. Including magnetic material
788		. . Loop type
789		. Within conductive apertured wall
790		. Active sleeve surrounds feed line
791		. . With coaxial active rod
792		. . Doublet type
792.5		. Logarithmically periodic
793		. Balanced doublet - centerfed (e.g., dipole)
794		. . Diverse-type doublets
795		. . Sheet or wing type
796		. . Helically or angularly staggered plural doublets
797		. . Plural crossed (e.g., turnstile)
798		. . . Plural groups (e.g., stacked)
799		. . Plural circumferentially arranged
800		. . . Plural groups (e.g., stacked)
801		. . Three or more collinear units form doublet
802		. . Distributed reactance added to arms
803		. . Folded
804		. . . Multiple conductor type
805		. . Arms angularly adjustable (e.g., rabbit ears)
806		. . Bent arms (e.g., zigzag type)
807		. . Tapered, thick, or enlarged arms
808		. . Plural-rod arm forming V (e.g., conical arrangement)
809		. . Arms non-linearly arranged (e.g., resonant V type)
810		. . Plural
811		. . . Fishbone-type array
812		. . . Parallel arrangement
813		. . . . Parallel and collinear arrangement
814		. . . . With coupling network
815		. . . . With parasitic element (e.g., reflector or director)
816		. . . With coupling network
817		. . . With parasitic element (e.g., reflector or director)
818		. . With parasitic element (e.g., reflector or director)
819		. . . With reflector and director
820		. . With coupling network or impedance in the leadin
821		. . . Balanced to unbalanced circuit
822		. . . Impedance matching network
823		. . Adjustable length
824		. Planar array of linear antennas
825		. Fractional, multiple, or full wave length linear type
826		. . Plural
827		. . . Collinear arrangement
828		. . Non-uniformity in antenna
829		. . With grounding structure, including counterpoises
830		. . . With coaxial feed line
831		. . Stub type
832		. Active antenna as reflector
833		. Antenna with parasitic director
834		. Antenna with parasitic reflector
835		. . Plural active antennas
836		. . . Plural reflectors
837		. . Plural reflectors
838		. . . Including a screening reflector
839		. . Reflector and active antenna relatively movable
840		. . Parabolic-type reflector with active antenna at focus
841		. With electrical shield
842		. . Loop-type antenna
843		. Having an appreciable wave length dimension
844		. Plural antennas spaced a fractional or full wave length apart
845		. With ground connection spaced from feed line connection
846		. With grounding structure (including counterpoises)
847		. . Insulated from or capacity coupled to ground
848		. . Artificial or substitute grounds (e.g., ground planes)
849		. . Modified natural grounds
850		. With coupling network or impedance in the leadin
851		. . With radiation suppressor (e.g., shield)
852		. . Plural path with impedance matching
853		. . With plural antennas
855		. . . Loop antennas
856		. . Antenna forms transformer primary or secondary
857		. . Coupling at spaced points on antenna
858		. . Coupled to plural leadins
859		. . Balanced to unbalanced circuit
860		. . Impedance matching network
861		. . . Adjustable
862		. . . Including long line element
863		. . . . Tapered
864		. . . . Quarter-wave transformer
865		. . Balanced coupling network to balanced antenna
866		. Loop type
867		. . Plural; plural or tapped coils
868		. . Adjustable configuration, area or coil length
869		. . With rotatable support
870		. . With connector or terminals
871		. . With collapsible or foldable frame
872		. With housing or protective covering
873		. . Antenna embedded, potted, or coated
874		. Mast or tower type
875		. . Sectional
876		. Switching between antennas and lines
877		. With reel for antenna
878		. With support for antenna, reflector or director
879		. . For plural separate antennas
880		. . Adjustable or collapsible support
881		. . . Foldable
882		. . . Pivoted or rotatable
883		. . . Telescoping
884		. . Plural wire transmission line or wave guide as support
885		. . Stress distributing or static discharging means for support
886		. . Horizontally suspended between poles or standards
887		. . Streamline-shaped support
888		. . For supporting rod-like end portion of antenna
889		. . . Rod retractible into support
890		. . Antenna on post, standard or tower
891		. . . Antenna along length of post
892		. . Antenna on bracket
893		. Plural antennas
894		. With signal, indicator or alarm
895		. Spiral or helical type
896		. Rods or wire form cage or hollow post
897		. Mesh, woven, braided or multiple strip
898		. Hollow metallic body
899		. Having area increasing means (e.g., spiniferous, metal ball on top)
900		. Rod type
901		. . Telescoping
902		. . . Fluid pressure actuated
903		. . . Flexible rod actuated
904		. Combined
905		. . With transmission line
906		. . With electrical connector
907		. Antenna components
908		. . Active antenna component of particular shape
909		. . Refracting means and radio wave energy filters (e.g., lenses and polarizers)
910		. . . Zoned type
911R		. . . Dielectric type
911L		. . . . Luneberg type
912		. . Reflector or director
913		. . . With impedance
914		. . . Diverse curvature
915		. . . Collapsible, foldable or adjustable
916		. . . Made of detachable parts
700MS		. Microstrip
		******************************
		DIGESTS
		******************************
DIG 1		With vibration damper or wind catcher
DIG 2		Satellite-mounted antenna

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Last Modified: 6 October 2000