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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06/22/1988 | EP0271517A1 Array antenna. |
06/15/1988 | EP0271458A2 Electromagnetically coupled printed-circuit antennas having patches or slots capacitively coupled to feedlines |
06/14/1988 | US4751515 Electromagnetic structure and method |
06/14/1988 | US4751513 Light controlled antennas |
06/14/1988 | US4751136 Metal foil laminated to porous dielectric through water-impermeable film |
06/08/1988 | EP0270209A2 Dual-band circularly polarised antenna with hemispherical coverage |
06/07/1988 | US4750000 Ultra-broadband impedance matched electrically small self-complementary signal radiating structures with impedance-inverting feed for complementary pairs using thin wire elements |
06/07/1988 | US4749996 Double tuned, coupled microstrip antenna |
06/07/1988 | CA1237808A1 Crossed-drooping dipole antenna |
06/01/1988 | DE3701518A1 Radio antenna having two or more than two radiator sections which are arranged one above the other and are formed by rods |
05/25/1988 | EP0268089A2 Passive transponder |
05/25/1988 | CN87209440U Full-channel tv recreving antenna with v-shape oscillator |
05/24/1988 | US4746927 VOR antenna design |
05/24/1988 | US4746925 Shielded dipole glass antenna with coaxial feed |
05/10/1988 | US4743918 Antenna comprising a device for excitation of a waveguide in the circular mode |
05/10/1988 | US4743906 Time domain radio transmission system |
05/04/1988 | EP0266264A1 Attack simulator by means of an electromagnetic pulse |
04/26/1988 | US4740793 Antenna elements and arrays |
04/26/1988 | CA1235752A1 Portable radio communication apparatus comprising an antenna member for a broad-band signal |
04/20/1988 | EP0264170A1 An antenna |
04/20/1988 | EP0264056A2 Vehicle antenna with shiftable gain patterns |
04/12/1988 | US4737797 Microstrip balun-antenna apparatus |
04/12/1988 | US4737793 Radio frequency antenna with controllably variable dual orthogonal polarization |
04/05/1988 | US4736454 Integrated oscillator and microstrip antenna system |
03/24/1988 | WO1988002189A1 Passive resonant halfwave antenna element for antennas operating in the vhf or uhf band and an antenna using these elements |
03/15/1988 | CA1234214A1 Vibration-tolerant whip antenna |
03/08/1988 | US4730195 Shortened wideband decoupled sleeve dipole antenna |
03/02/1988 | EP0257657A2 Substrate for high-frequency circuit and process for making the same |
03/02/1988 | EP0257544A2 Receiving device for microwave signals |
03/01/1988 | US4728960 Multifunctional microstrip antennas |
02/18/1988 | DE3627597A1 Conformal antenna for missiles |
02/16/1988 | US4725848 Constant beamwidth spiral antenna |
02/16/1988 | US4725845 Retractable helical antenna |
02/09/1988 | US4724443 Patch antenna with a strip line feed element |
02/09/1988 | US4724427 Transponder device |
02/04/1988 | DE3625113A1 Aerial element which is provided for a phased-array antenna |
02/03/1988 | EP0255095A2 Transponder antenna |
01/28/1988 | WO1988000785A1 Transponder device |
01/27/1988 | EP0254373A1 Antenna for high frequencies |
01/26/1988 | US4721962 Antenna for a transceiver, particularly portable telephone |
01/19/1988 | US4719699 In the construction of a balun |
01/14/1988 | DE3621117A1 Vehicle antenna for the decimetric waveband |
01/13/1988 | EP0252648A1 A dipole |
01/12/1988 | US4719471 Angulated FM antenna |
01/12/1988 | US4719470 Broadband printed circuit antenna with direct feed |
12/17/1987 | WO1987007772A1 Array antenna |
12/16/1987 | EP0249303A1 A dipole array |
12/02/1987 | EP0247454A1 Broadbanded microstrip antenna having series-broadbanding capacitance integral with feedline connection |
11/25/1987 | EP0246690A1 Microwave component |
11/24/1987 | US4709239 Dipatch antenna |
11/19/1987 | EP0246026A2 Antenna for wireless communication equipment |
11/10/1987 | US4706050 Microstrip devices |
10/28/1987 | EP0243289A1 Plate antenna with two crossed polarizations |
10/20/1987 | US4701764 Miniature high-gain antenna |
10/20/1987 | US4701763 Small antenna |
10/15/1987 | DE3611077A1 Arrangement for wireless information transmission by means of electromagnetic waves at an extremely low frequency |
10/13/1987 | US4700194 Small antenna |
10/06/1987 | US4698633 Antennas for wide bandwidth signals |
09/29/1987 | US4697191 Omniazimuthal antenna |
09/29/1987 | US4697190 Borehole located directional antennae means for electromagnetic sensing systems |
09/29/1987 | US4697189 Microstrip antenna |
09/16/1987 | CN86201859U Logarithm plane spiral receiving antenna for tv set |
09/08/1987 | US4692772 Antenna extended surface attachment |
09/08/1987 | US4692769 Dual band slotted microstrip antenna |
09/01/1987 | US4691209 Wideband antenna |
08/19/1987 | EP0232314A1 Mobile antenna feed system. |
08/18/1987 | CA1225738A1 Whip antenna high voltage protection device |
08/11/1987 | US4686536 Crossed-drooping dipole antenna |
08/04/1987 | US4684953 Reduced height monopole/crossed slot antenna |
07/22/1987 | EP0229552A1 Wide band discone antenna |
07/21/1987 | CA1224562A1 Half-loop antenna for land vehicle |
07/08/1987 | EP0228297A2 Broadband microstrip antennas |
07/08/1987 | EP0227804A1 Axial multipole mobile antenna |
06/24/1987 | EP0226390A2 Shorted microstrip antenna |
06/23/1987 | US4675691 Split curved plate antenna |
06/23/1987 | US4675685 Low VSWR, flush-mounted, adaptive array antenna |
06/23/1987 | CA1223339A1 Cellular mobile communications antenna |
06/16/1987 | US4673949 Wideband VHF/UHF radio antenna with quarter-wave transformer |
06/16/1987 | EP0225460A2 Transmit-receive antenna, especially for short and medium waves |
06/02/1987 | US4670760 Antenna apparatus and method for curtailing sky waves |
05/26/1987 | US4668956 Broadband cup antennas |
05/26/1987 | CA1222315A1 Tactical high frequency array antennas |
05/20/1987 | CN85103804A Antenna device for receiving and transmitting electromagnetic waves |
05/05/1987 | US4663632 Extendable directional dipole antenna |
04/28/1987 | US4661821 Vandalism-resistant UHF antenna |
04/22/1987 | EP0218843A2 Diversity antenna for mobile radio devices |
04/21/1987 | US4660048 Microstrip patch antenna system |
04/21/1987 | US4660047 Microstrip antenna with resonator feed |
04/15/1987 | CN86204013U Universal joint interface of antenna and junction of antenna pole |
04/15/1987 | CN86203376U Antenna for inducing radio communication |
04/14/1987 | US4658266 Vertical antenna with improved artificial ground system |
04/14/1987 | US4658262 Dual polarized sinuous antennas |
04/14/1987 | US4658260 Telescoping multiband antenna |
04/08/1987 | EP0217426A2 Microstrip antenna device |
04/08/1987 | EP0216907A1 Multiband antenna. |
04/07/1987 | US4656485 Four wire dual mode spiral antenna |
04/07/1987 | US4656483 Switchable antenna for the VHF and UHF frequency bands |
03/31/1987 | US4654622 Monolithic integrated dual mode IR/mm-wave focal plane sensor |
03/24/1987 | US4652888 Miniature tactical HF antenna |
03/18/1987 | EP0214806A2 Portable radio |