Patents
Patents for H01Q 7 - 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 (7,833)
01/1981
01/06/1981US4243980 Antenna system for electronic security installations
12/1980
12/11/1980WO1980002782A1 Antenna low-noise q spoiling circuit
11/1980
11/25/1980US4236160 Loop driven element antenna system and voltage feed system
08/1980
08/12/1980US4217591 High frequency roll-bar loop antenna
05/1980
05/27/1980US4205318 Mini-indoor TV antenna
03/1980
03/11/1980US4193076 Coupling an outer antenna with a radio receiver having a bar antenna
01/1980
01/22/1980CA1070420A1 Modified logarithmic type of aerial array
01/15/1980US4184164 Directive loop antenna
09/1979
09/25/1979US4169265 P-Band loop antennas in radial array
07/1979
07/10/1979US4160979 Helical radio antennae
07/10/1979US4160978 Circularly polarized loop and helix panel antennas
05/1979
05/15/1979US4155091 Compact omnidirectional antenna array
04/1979
04/03/1979US4148036 Magnetic quadrapole antenna
03/1979
03/06/1979CA1050161A1 Inductor or antenna arrangement with integral series resonating capacitors
02/1979
02/06/1979US4138682 Cubical quad antennas with spreader-reinforced crossarms
01/1979
01/16/1979US4135183 Antipilferage system utilizing "figure-8" shaped field producing and detector coils
12/1978
12/12/1978CA1044365A1 Adjustable antenna mount for radio receiver
09/1978
09/26/1978US4117491 Logarithmically periodic loop antenna array with spaced filters in the coupling network
07/1978
07/18/1978US4101899 Compact low-profile electrically small vhf antenna
03/1978
03/21/1978US4080603 Transmitting and receiving loop antenna with reactive loading
02/1978
02/21/1978US4075634 Portable antenna assembly for television receiver
05/1977
05/24/1977US4025856 Antenna apparatus
03/1977
03/15/1977US4012742 Multimode loop antenna
01/1977
01/18/1977US4004228 Portable transmitter
01/04/1977US4001830 Radio receiver set with rotatable antenna
11/1976
11/23/1976US3993998 Directional loop antenna with plural dielectric coverings
08/1976
08/03/1976US3973263 Sensitivity improvement of spaced-loop antenna by capacitive gap loading
07/1976
07/20/1976US3971031 Loaded quad antenna
05/1976
05/11/1976US3956751 Miniaturized tunable antenna for general electromagnetic radiation and sensing with particular application to TV and FM
04/1976
04/13/1976US3950756 Tunable antenna having adjustable loop configurations
03/1976
03/23/1976US3946397 Inductor or antenna arrangement with integral series resonating capacitors
02/1976
02/10/1976US3938044 Antenna apparatus for an electronic security system
01/1976
01/13/1976US3932872 Core design for flexible H-sensor for ELF
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