| 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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| 01/05/1982 | US4309706 Wideband direction-finding system |
| 12/29/1981 | US4308540 Compact television antenna system |
| 12/02/1981 | EP0040674A1 Whip antenna |
| 11/26/1981 | WO1981003398A1 Circularly polarized hemispheric coverage flush antenna |
| 11/24/1981 | US4302760 Wideband vertical doublet antenna |
| 11/24/1981 | CA1113183A1 Disc antenna |
| 11/10/1981 | US4300140 Coil loaded antenna embedded in glass fibre |
| 11/03/1981 | US4298878 Radiating source formed by a dipole excited by a waveguide and an electronically scanning antenna comprising such sources |
| 10/27/1981 | US4297711 Omnidirectional receiving antenna |
| 10/06/1981 | US4293861 Compact television antenna system |
| 09/22/1981 | US4291312 Dual ground plane coplanar fed microstrip antennas |
| 09/22/1981 | US4291311 Dual ground plane microstrip antennas |
| 09/22/1981 | CA1109526A1 Microwave oven having l-shaped antenna |
| 09/08/1981 | CA1108753A1 Apparatus and method for improving r.f. isolation between adjacent antennas |
| 09/01/1981 | US4287603 Radiated input mixer |
| 09/01/1981 | US4287518 Cavity-backed, micro-strip dipole antenna array |
| 08/18/1981 | CA1107393A1 Mobile antenna mounting assembly |
| 08/18/1981 | CA1107392A1 Mobile antenna with adjustable radiating element |
| 08/12/1981 | EP0033676A1 Common antenna for primary radar and secondary radar |
| 08/04/1981 | US4282531 Vertical antenna with upwardly flaring base mounted conductors |
| 07/28/1981 | US4281287 Having a coating of ferric oxide on a polyester substrate |
| 07/21/1981 | US4280129 Variable mutual transductance tuned antenna |
| 07/07/1981 | CA1104712A1 Broadband shaped beam antenna |
| 05/26/1981 | US4270128 Radio antennae |
| 05/19/1981 | US4268833 Broadband shaped beam antenna employing a cavity backed spiral radiator |
| 05/05/1981 | CA1100627A2 Yagi-type antenna |
| 04/07/1981 | CA1099014A1 Microwave antenna |
| 03/31/1981 | US4259673 Stub matched antenna and method of feeding same |
| 03/31/1981 | US4259672 Multi-band vertical antenna |
| 03/31/1981 | US4259670 Broadband microstrip antenna with automatically progressively shortened resonant dimensions with respect to increasing frequency of operation |
| 03/24/1981 | CA1098206A1 Configuration of two antennae with signal isolation |
| 03/10/1981 | CA1097428A1 Terminated microstrip antenna |
| 03/10/1981 | CA1097427A1 Low profile remotely tuned dipole antenna |
| 03/03/1981 | US4254422 Dipole antenna fed by coaxial active rod |
| 03/03/1981 | US4254420 Whip antenna of reduced length for VHF radio communication |
| 02/24/1981 | US4253099 Automobile antenna |
| 02/03/1981 | CA1095165A1 Electronically scanned antenna |
| 01/20/1981 | US4246217 Doped with carbon black for radio antennas |
| 01/07/1981 | EP0021762A1 Electronic tuning antenna system |
| 01/06/1981 | US4243993 Broadband center-fed spiral antenna |
| 12/23/1980 | US4241352 Feed network scanning antenna employing rotating directional coupler |
| 12/09/1980 | US4238801 C-B Antenna extended surface attachment |
| 12/09/1980 | US4238800 Whip antenna with capacitive loading |
| 11/11/1980 | US4233607 Apparatus and method for improving r.f. isolation between adjacent antennas |
| 11/04/1980 | US4232319 Broadband transmitting antenna for test chamber |
| 11/04/1980 | CA1089022A1 Shaped antenna for energy distribution in a microwave cooking cavity |
| 10/21/1980 | US4229743 Multiple band, multiple resonant frequency antenna |
| 10/15/1980 | EP0017530A1 Radiating source constituted by a dipole excited by a waveguide, and its use in an electronic scanning antenna |
| 10/15/1980 | EP0016970A1 Antenna for transmitting and receiving electromagnetic radiation with horizontal polarisation |
| 09/23/1980 | US4224625 Antenna |
| 09/16/1980 | US4223315 Stacked arrays for broadcasting elliptically polarized waves |
| 09/16/1980 | US4223314 AM-FM and CB antenna |
| 09/09/1980 | US4222053 Multi-band vertical antenna |
| 09/02/1980 | CA1085049A1 Adjustable antenna arrangement for a portable radio |
| 08/20/1980 | EP0014635A1 Dipole fed open cavity antenna |
| 08/19/1980 | US4218682 Multiple band circularly polarized microstrip antenna |
| 08/19/1980 | CA1084160A1 Microstrip-fed parasitic array |
| 08/12/1980 | US4217591 High frequency roll-bar loop antenna |
| 08/12/1980 | US4217589 Ground and/or feedline independent resonant feed device for coupling antennas and the like |
| 07/22/1980 | US4214247 Tunable fiberglass whip antenna |
| 07/22/1980 | US4214246 Continually adjustable frequency antenna |
| 07/01/1980 | CA1080845A1 Inductively loaded monopole with series capacitance |
| 06/25/1980 | EP0012645A1 Sheet antenna composed of two circular rings |
| 06/24/1980 | US4209790 Vertical antenna with stub cancellation means |
| 06/17/1980 | US4208662 Omnidirectional, vertically polarized antenna |
| 06/17/1980 | US4208660 Radio frequency ring-shaped slot antenna |
| 06/17/1980 | US4207841 Dipole antenna for proximity fuze |
| 06/11/1980 | EP0012055A1 Microstrip monopulse primary feed and antenna using same |
| 06/10/1980 | US4207574 Portable dipole antenna with end loading |
| 06/03/1980 | CA1078956A1 Microstrip feed with reduced aperture blockage |
| 05/27/1980 | US4205317 Broadband miniature antenna |
| 05/20/1980 | CA1078058A1 Stacked arrays for broadcasting elliptically polarized waves |
| 05/06/1980 | US4201990 Tunable dipole antenna |
| 05/06/1980 | US4201989 Wideband antenna with frequency dependent ferrite core inductor |
| 05/06/1980 | US4201988 Wideband VHF antenna |
| 04/29/1980 | US4200874 Car antenna mounting means |
| 04/08/1980 | US4197544 Windowed dual ground plane microstrip antennas |
| 03/25/1980 | US4195301 Disc antenna feed for parabolic reflector |
| 03/11/1980 | US4193077 Directional antenna system with end loaded crossed dipoles |
| 03/04/1980 | US4191959 Microstrip antenna with circular polarization |
| 02/19/1980 | US4189730 Directional antenna shield for a slotted opening |
| 02/19/1980 | US4189691 Microwave terminating structure |
| 02/12/1980 | CA1071756A1 Radio antenna with an adjustable insulating housing |
| 01/29/1980 | US4186403 Antenna formed of non-uniform series connected sections |
| 01/29/1980 | US4186401 Citizens band mobile antenna mounting structure |
| 01/22/1980 | US4185289 Spherical antennas having isotropic radiation patterns |
| 01/22/1980 | CA1070421A1 Adjustable top loaded antenna |
| 01/15/1980 | US4184165 Tuning system for tower antennas |
| 01/15/1980 | US4184164 Directive loop antenna |
| 01/15/1980 | US4184162 Aerial mounting with right angle connection |
| 12/25/1979 | US4180819 Dipole antenna structure |
| 12/18/1979 | US4179698 Mobile antenna with adjustable radiating element |
| 12/11/1979 | CA1067996A1 Multiple resonance radio frequency antenna structure |
| 11/06/1979 | US4173761 Mobile antenna mounting assembly |
| 10/30/1979 | US4173019 Microstrip antenna array |
| 10/30/1979 | CA1065473A2 Center fed vertical gain antenna |
| 10/16/1979 | CA1064608A1 Direct fed spiral antenna |
| 10/09/1979 | US4170777 Mobile antenna |
| 10/02/1979 | US4170014 Antenna coil |
| 10/02/1979 | US4170013 Stripline patch antenna |