Patents
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)
12/1985
12/04/1985EP0163454A2 Microstrip antenna having unipole antenna
11/1985
11/26/1985US4555708 Dipole ring array antenna for circularly polarized pattern
11/26/1985CA1197317A1 Broadband microstrip antenna with varactor diodes
11/19/1985US4554554 Quadrifilar helix antenna tuning using pin diodes
11/19/1985US4554549 Microstrip antenna with circular ring
10/1985
10/29/1985CA1196092A1 Broadband antennae with frequency compensation stubs
10/15/1985US4547779 Annular slot antenna
10/15/1985US4547776 Loop antenna with improved balanced feed
10/08/1985US4546357 Furniture antenna system
10/08/1985CA1194989A1 Antenna device for direction finder
10/02/1985EP0156684A1 Microwave radiating element and its use in an electronically scanned array
09/1985
09/24/1985US4543583 Dipole antenna formed of coaxial cable
08/1985
08/27/1985US4538153 Directivity diversity communication system with microstrip antenna
08/20/1985CA1192301A1 Flat very high frequency antenna comprising a network of elements emitting or receiving very high frequency signals with a levo-or dextrorotational polarization
07/1985
07/30/1985CA1191252A1 Ground-plane antenna
07/24/1985EP0149400A2 Aerial with a circular-mode promotion system
07/18/1985WO1985003169A1 Antenna
07/16/1985US4529987 Broadband microstrip antennas with varactor diodes
07/09/1985US4528568 Slotted dipole with three layer transmission line feed
07/02/1985US4527163 Omnidirectional, circularly polarized, cylindrical microstrip antenna
06/1985
06/25/1985US4525720 Integrated spiral antenna and printed circuit balun
06/04/1985US4521784 Ground-plane antenna with impedance matching
06/04/1985US4521781 Phase scanned microstrip array antenna
05/1985
05/28/1985US4520363 Omnidirectional vertical antenna with improved high-angle coverage
05/21/1985US4518968 Dipole and ground plane antennas with improved terminations for coaxial feeders
05/15/1985EP0140960A1 Two element low profile antenna
05/07/1985US4516133 Antenna element having non-feed conductive loop surrounding radiating element
05/07/1985US4516127 Three element low profile antenna
04/1985
04/30/1985CA1186405A1 Radiating element or receiver for circularly polarized high-frequency signals and planar high- frequency antenna comprising a network of elements of these types
04/23/1985US4513338 Whip antenna high voltage protection device
04/23/1985US4513292 For operation over a range of frequencies
04/23/1985US4513290 Non-resonant coaxial monopole antenna
04/23/1985CA1186049A1 Antenna having a closed standing wave path
04/17/1985EP0137391A1 Cellular mobile communications antenna
04/16/1985US4511900 Current enhanced monopole radiation type antenna apparatus
04/09/1985US4510498 Plate antenna for direction finder
04/03/1985EP0135742A1 Omnidirectional antenna
04/02/1985US4509056 Multi-frequency antenna employing tuned sleeve chokes
03/1985
03/26/1985US4507341 Carbon fibre structures
03/20/1985EP0134688A1 Rhombic aerial
03/19/1985US4506267 Frequency independent shielded loop antenna
03/19/1985US4506266 Antenna apparatus for vehicle-mounted receiver/transmitter equipment with automatic antenna length control
03/12/1985US4504834 Coaxial dipole antenna with extended effective aperture
03/12/1985CA1183942A1 Broadband radiation detector for microwave and lower frequencies
02/1985
02/26/1985US4502053 Circularly polarized electromagnetic-wave radiator
02/19/1985US4500888 For use in severe climatic conditions
02/05/1985US4498086 Broad band liquid loaded dipole antenna
02/05/1985US4498085 For operation over a range of frequencies
02/05/1985US4498084 Four wire dual mode spiral antenna
01/1985
01/29/1985US4496953 Broadband vertical dipole antenna
01/29/1985US4496952 Trap vertical antenna with parallel L-C circuits for broadbanding
01/22/1985US4495505 Printed circuit balun with a dipole antenna
01/22/1985US4495503 Slow wave antenna
01/15/1985US4494122 Antenna apparatus capable of resonating at two different frequencies
01/15/1985US4494120 Two element low profile antenna
01/09/1985EP0130198A1 Coaxial dipole antenna with extended effective aperture
01/01/1985US4491850 Antenna formed of series of metallic and non-metallic conductive sections
01/01/1985US4491849 Radio antenna
01/01/1985US4491843 Portable receiver with housing serving as a dipole antenna
12/1984
12/04/1984US4486758 Antenna element for circularly polarized high-frequency signals
11/1984
11/27/1984US4485385 Broadband diamond-shaped antenna
11/14/1984EP0124758A1 Antenna with an electrically shortened linear radiator
11/08/1984WO1984004427A1 Two element low profile antenna
10/1984
10/23/1984US4479130 Broadband antennae employing coaxial transmission line sections
10/23/1984US4479127 Bi-loop antenna system
10/17/1984EP0121722A1 A singly fed circularly polarized microstrip antenna
10/16/1984US4477817 Switching circuit including pin diodes for impedance matching
10/16/1984US4477813 Microstrip antenna system having nonconductively coupled feedline
10/02/1984US4475108 Electronically tunable microstrip antenna
09/1984
09/25/1984CA1175140A1 Radio antenna
09/19/1984EP0118690A1 Annular slot antenna
09/12/1984EP0118239A2 Carbon fibre structures
09/12/1984EP0117990A1 Apparatus for matched impedance feeding of microstrip-type radio frequency antenna structure
09/05/1984EP0117703A2 Antenna construction
09/05/1984EP0117283A1 Dipole antenna for a portable radio apparatus
08/1984
08/29/1984EP0117017A1 Low-profile omni-antenna
08/28/1984US4468674 Assymetrical folded half-dipole and linear extension antenna array
08/22/1984EP0116487A1 Grouns plane antenna
08/14/1984US4466003 Compact wideband multiple conductor monopole antenna
08/08/1984EP0115270A2 Frequency independent antenna
08/07/1984US4464663 Dual polarized, high efficiency microstrip antenna
07/1984
07/25/1984EP0113818A2 Blocking device for surface waves
07/24/1984US4462033 Antenna with spring loading coil
07/17/1984US4460896 Antenna with tunable helical resonator
07/17/1984US4460894 Laterally isolated microstrip antenna
07/10/1984US4459597 Isolated antenna assembly
07/10/1984US4459596 Coaxial antenna configuration with high inter-element isolation
07/05/1984WO1984002614A1 Coaxial dipole antenna with extended effective aperture
06/1984
06/12/1984US4454514 Strip antenna with polarization control
05/1984
05/24/1984WO1984002038A1 Broadband directional antenna
05/22/1984US4450449 Patch array antenna
04/1984
04/24/1984US4445122 Broad-band microstrip antenna
04/24/1984US4445121 Single membrane lens for space radar using microstrip antenna radiating elements
04/17/1984US4443805 Plate-type antenna with double circular loops
04/17/1984US4443803 Lossy matching for broad bonding low profile small antennas
04/11/1984EP0105103A2 Microstrip antenna system having nonconductively coupled feedline
04/10/1984US4442436 Vertical antenna
04/03/1984US4441108 Omnidirectional multiple-band antenna
03/1984
03/27/1984US4439772 Inductor type half wave antenna
03/06/1984US4435713 Whip antenna construction