Patents for H01Q 9 - Electrically-short aerials having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements (23,053) |
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12/04/1985 | EP0163454A2 Microstrip antenna having unipole antenna |
11/26/1985 | US4555708 Dipole ring array antenna for circularly polarized pattern |
11/26/1985 | CA1197317A1 Broadband microstrip antenna with varactor diodes |
11/19/1985 | US4554554 Quadrifilar helix antenna tuning using pin diodes |
11/19/1985 | US4554549 Microstrip antenna with circular ring |
10/29/1985 | CA1196092A1 Broadband antennae with frequency compensation stubs |
10/15/1985 | US4547779 Annular slot antenna |
10/15/1985 | US4547776 Loop antenna with improved balanced feed |
10/08/1985 | US4546357 Furniture antenna system |
10/08/1985 | CA1194989A1 Antenna device for direction finder |
10/02/1985 | EP0156684A1 Microwave radiating element and its use in an electronically scanned array |
09/24/1985 | US4543583 Dipole antenna formed of coaxial cable |
08/27/1985 | US4538153 Directivity diversity communication system with microstrip antenna |
08/20/1985 | CA1192301A1 Flat very high frequency antenna comprising a network of elements emitting or receiving very high frequency signals with a levo-or dextrorotational polarization |
07/30/1985 | CA1191252A1 Ground-plane antenna |
07/24/1985 | EP0149400A2 Aerial with a circular-mode promotion system |
07/18/1985 | WO1985003169A1 Antenna |
07/16/1985 | US4529987 Broadband microstrip antennas with varactor diodes |
07/09/1985 | US4528568 Slotted dipole with three layer transmission line feed |
07/02/1985 | US4527163 Omnidirectional, circularly polarized, cylindrical microstrip antenna |
06/25/1985 | US4525720 Integrated spiral antenna and printed circuit balun |
06/04/1985 | US4521784 Ground-plane antenna with impedance matching |
06/04/1985 | US4521781 Phase scanned microstrip array antenna |
05/28/1985 | US4520363 Omnidirectional vertical antenna with improved high-angle coverage |
05/21/1985 | US4518968 Dipole and ground plane antennas with improved terminations for coaxial feeders |
05/15/1985 | EP0140960A1 Two element low profile antenna |
05/07/1985 | US4516133 Antenna element having non-feed conductive loop surrounding radiating element |
05/07/1985 | US4516127 Three element low profile antenna |
04/30/1985 | CA1186405A1 Radiating element or receiver for circularly polarized high-frequency signals and planar high- frequency antenna comprising a network of elements of these types |
04/23/1985 | US4513338 Whip antenna high voltage protection device |
04/23/1985 | US4513292 For operation over a range of frequencies |
04/23/1985 | US4513290 Non-resonant coaxial monopole antenna |
04/23/1985 | CA1186049A1 Antenna having a closed standing wave path |
04/17/1985 | EP0137391A1 Cellular mobile communications antenna |
04/16/1985 | US4511900 Current enhanced monopole radiation type antenna apparatus |
04/09/1985 | US4510498 Plate antenna for direction finder |
04/03/1985 | EP0135742A1 Omnidirectional antenna |
04/02/1985 | US4509056 Multi-frequency antenna employing tuned sleeve chokes |
03/26/1985 | US4507341 Carbon fibre structures |
03/20/1985 | EP0134688A1 Rhombic aerial |
03/19/1985 | US4506267 Frequency independent shielded loop antenna |
03/19/1985 | US4506266 Antenna apparatus for vehicle-mounted receiver/transmitter equipment with automatic antenna length control |
03/12/1985 | US4504834 Coaxial dipole antenna with extended effective aperture |
03/12/1985 | CA1183942A1 Broadband radiation detector for microwave and lower frequencies |
02/26/1985 | US4502053 Circularly polarized electromagnetic-wave radiator |
02/19/1985 | US4500888 For use in severe climatic conditions |
02/05/1985 | US4498086 Broad band liquid loaded dipole antenna |
02/05/1985 | US4498085 For operation over a range of frequencies |
02/05/1985 | US4498084 Four wire dual mode spiral antenna |
01/29/1985 | US4496953 Broadband vertical dipole antenna |
01/29/1985 | US4496952 Trap vertical antenna with parallel L-C circuits for broadbanding |
01/22/1985 | US4495505 Printed circuit balun with a dipole antenna |
01/22/1985 | US4495503 Slow wave antenna |
01/15/1985 | US4494122 Antenna apparatus capable of resonating at two different frequencies |
01/15/1985 | US4494120 Two element low profile antenna |
01/09/1985 | EP0130198A1 Coaxial dipole antenna with extended effective aperture |
01/01/1985 | US4491850 Antenna formed of series of metallic and non-metallic conductive sections |
01/01/1985 | US4491849 Radio antenna |
01/01/1985 | US4491843 Portable receiver with housing serving as a dipole antenna |
12/04/1984 | US4486758 Antenna element for circularly polarized high-frequency signals |
11/27/1984 | US4485385 Broadband diamond-shaped antenna |
11/14/1984 | EP0124758A1 Antenna with an electrically shortened linear radiator |
11/08/1984 | WO1984004427A1 Two element low profile antenna |
10/23/1984 | US4479130 Broadband antennae employing coaxial transmission line sections |
10/23/1984 | US4479127 Bi-loop antenna system |
10/17/1984 | EP0121722A1 A singly fed circularly polarized microstrip antenna |
10/16/1984 | US4477817 Switching circuit including pin diodes for impedance matching |
10/16/1984 | US4477813 Microstrip antenna system having nonconductively coupled feedline |
10/02/1984 | US4475108 Electronically tunable microstrip antenna |
09/25/1984 | CA1175140A1 Radio antenna |
09/19/1984 | EP0118690A1 Annular slot antenna |
09/12/1984 | EP0118239A2 Carbon fibre structures |
09/12/1984 | EP0117990A1 Apparatus for matched impedance feeding of microstrip-type radio frequency antenna structure |
09/05/1984 | EP0117703A2 Antenna construction |
09/05/1984 | EP0117283A1 Dipole antenna for a portable radio apparatus |
08/29/1984 | EP0117017A1 Low-profile omni-antenna |
08/28/1984 | US4468674 Assymetrical folded half-dipole and linear extension antenna array |
08/22/1984 | EP0116487A1 Grouns plane antenna |
08/14/1984 | US4466003 Compact wideband multiple conductor monopole antenna |
08/08/1984 | EP0115270A2 Frequency independent antenna |
08/07/1984 | US4464663 Dual polarized, high efficiency microstrip antenna |
07/25/1984 | EP0113818A2 Blocking device for surface waves |
07/24/1984 | US4462033 Antenna with spring loading coil |
07/17/1984 | US4460896 Antenna with tunable helical resonator |
07/17/1984 | US4460894 Laterally isolated microstrip antenna |
07/10/1984 | US4459597 Isolated antenna assembly |
07/10/1984 | US4459596 Coaxial antenna configuration with high inter-element isolation |
07/05/1984 | WO1984002614A1 Coaxial dipole antenna with extended effective aperture |
06/12/1984 | US4454514 Strip antenna with polarization control |
05/24/1984 | WO1984002038A1 Broadband directional antenna |
05/22/1984 | US4450449 Patch array antenna |
04/24/1984 | US4445122 Broad-band microstrip antenna |
04/24/1984 | US4445121 Single membrane lens for space radar using microstrip antenna radiating elements |
04/17/1984 | US4443805 Plate-type antenna with double circular loops |
04/17/1984 | US4443803 Lossy matching for broad bonding low profile small antennas |
04/11/1984 | EP0105103A2 Microstrip antenna system having nonconductively coupled feedline |
04/10/1984 | US4442436 Vertical antenna |
04/03/1984 | US4441108 Omnidirectional multiple-band antenna |
03/27/1984 | US4439772 Inductor type half wave antenna |
03/06/1984 | US4435713 Whip antenna construction |