Patents for H01Q 21 - Aerial arrays or systems (25,127) |
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02/03/1987 | US4641366 Portable radio communication apparatus comprising an antenna member for a broad-band signal |
02/03/1987 | US4641317 Spread spectrum radio transmission system |
02/03/1987 | US4641145 Microwave antenna having an array of radiating elements for circularly polarized signals |
02/03/1987 | US4641140 Miniaturized microwave transmission link |
02/03/1987 | CA1217558A1 Dual space fed parallel plate lens antenna beamforming system |
01/22/1987 | DE3526046A1 Antenna array |
01/21/1987 | EP0209220A1 Dual end resonant slot array antenna feed |
01/21/1987 | EP0209156A2 Planar antenna with patch radiators |
01/20/1987 | US4638323 Asymmetric ridge waveguide collinear slot array antenna |
01/20/1987 | US4638318 Small angular beamwidth antenna system |
01/08/1987 | DE3524132A1 Surveillance radar antenna |
01/06/1987 | USH190 Notch antenna for a radio communications system |
01/06/1987 | US4635070 Dual mode antenna having simultaneous operating modes |
01/06/1987 | US4635069 Mutual-coupling multi-element FM antenna |
01/06/1987 | US4635065 Antenna device for direction finders |
12/30/1986 | US4633265 Low frequency/high frequency omnidirectional antenna formed of plural dipoles extending from a common center |
12/30/1986 | US4633262 Microstrip antenna with protective casing |
12/30/1986 | US4633250 Coplanar antenna for proximate surveillance systems |
12/30/1986 | EP0207029A2 Electromagnetically coupled microstrip antennas having feeding patches capacitively coupled to feedlines |
12/30/1986 | EP0205845A1 Method of elaborating a central signal for controlling the polarization of an antenna |
12/23/1986 | US4631544 S-band coaxial slot array antenna |
12/17/1986 | EP0205393A1 Omnidirectional cylindrical antenna |
12/17/1986 | EP0205212A1 Modular microwave antenna units and antenna composed of such units |
12/17/1986 | EP0204804A1 Omnidirectional antenna array. |
12/16/1986 | US4629978 Dipole antenna |
12/03/1986 | EP0203777A2 Space amplifier |
12/02/1986 | US4626865 Antenna element for orthogonally-polarized high frequency signals |
11/26/1986 | EP0202901A1 Radar antenna array |
11/25/1986 | CA1214545A1 Broadband diamond-shaped antenna |
11/18/1986 | US4623894 Interleaved waveguide and dipole dual band array antenna |
11/18/1986 | US4623893 Microstrip antenna and antenna array |
11/18/1986 | US4623891 Far-field nulling technique for reducing the susceptibility to cross-polarized signal in dual-polarized monopulse-type tracking antennas |
11/12/1986 | EP0200819A2 Antenna array |
11/05/1986 | EP0199805A1 Modularized contoured beam direct radiating antenna |
10/29/1986 | EP0199463A2 Electrical power dividers |
10/28/1986 | US4620155 Nuclear magnetic resonance imaging antenna subsystem having a plurality of non-orthogonal surface coils |
10/21/1986 | US4618865 Dielectric trough waveguide antenna |
10/14/1986 | US4617573 Method for obtaining a linear cellular array employing cosine-squared antenna patterns |
09/30/1986 | US4614947 Planar high-frequency antenna having a network of fully suspended-substrate microstrip transmission lines |
09/24/1986 | EP0195356A2 L-band antenna for mobile satellite broadcasting |
09/23/1986 | CA1211837A1 Radiating or receiving element for orthogonally polarized high-frequency signals and planar antenna comprising an array of juxtaposed elements of this type |
09/23/1986 | CA1211836A1 Small angular beamwidth antenna system |
09/16/1986 | US4612548 Multi-port radio frequency networks for an antenna array |
09/16/1986 | US4612543 Integrated high-gain active radar augmentor |
09/09/1986 | US4611212 Field component diversity antenna and receiver arrangement |
09/03/1986 | EP0193426A1 Miniature antenna providing gain |
08/13/1986 | EP0190927A2 Slotted waveguide antennas and arrays |
08/13/1986 | EP0190862A2 Automobile antenna system |
08/13/1986 | EP0190812A2 Improved polarity switch for satellite television receiver |
08/13/1986 | EP0190569A2 Broad-band directional-antenna arrangement |
08/13/1986 | EP0190412A2 Method for fabricating a planar phase-shifter |
08/13/1986 | EP0190291A1 Antenna construction |
08/12/1986 | US4605932 Nested microstrip arrays |
08/12/1986 | US4605931 Crossover traveling wave feed for microstrip antenna array |
08/12/1986 | CA1209692A1 Antenna with a reflector of open construction |
08/06/1986 | EP0189661A2 Polarity switch for satellite television receiver |
08/06/1986 | EP0189630A1 Low Frequency/high frequency omnidirectional antenna. |
08/06/1986 | EP0189592A1 Coplanar antenna for proximate surveillance systems |
07/29/1986 | US4603332 Interleaved microstrip planar array |
07/29/1986 | CA1208774A1 Continuous ferrite aperture for electronic scanning antennas |
07/23/1986 | EP0188087A1 Microstrip patch antenna system |
07/02/1986 | EP0186483A2 Transponder systems |
07/02/1986 | EP0186455A2 A dipole array |
07/01/1986 | US4598296 Dipole antenna system with overhead coverage having equidirectional-linear polarization |
06/24/1986 | CA1206607A1 Antenna for transmitting and/or receiving microwave radiation |
06/24/1986 | CA1206605A1 Waveguide having radiating slots and a wide frequency band |
06/19/1986 | WO1986003624A1 Omnidirectional antenna array |
06/17/1986 | US4595926 Dual space fed parallel plate lens antenna beamforming system |
06/17/1986 | CA1206256A1 Compact, adjustable antenna |
06/11/1986 | EP0184235A1 Vor antenna design |
06/10/1986 | US4594595 Circular log-periodic direction-finder array |
05/22/1986 | WO1986003062A1 Modularized contoured beam direct radiating antenna |
05/20/1986 | US4590480 Broadcast antenna which radiates horizontal polarization towards distant locations and circular polarization towards nearby locations |
05/20/1986 | US4590479 Broadcast antenna system with high power aural/visual self-diplexing capability |
05/20/1986 | US4590478 Multiple ridge antenna |
05/13/1986 | US4588994 Continuous ferrite aperture for electronic scanning antennas |
05/13/1986 | US4588993 Broadband isotropic probe system for simultaneous measurement of complex E- and H-fields |
05/06/1986 | US4587524 Reduced height monopole/slot antenna with offset stripline and capacitively loaded slot |
04/30/1986 | EP0179601A2 Microwave reflection survey method |
04/23/1986 | EP0178877A2 Microwave reflection survey equipment |
04/16/1986 | EP0177630A1 Combination of antennas |
04/15/1986 | US4583098 Circularly polarized antenna using axial slot and slanted parasitic radiators |
04/15/1986 | CA1203297A1 Resonant waveguide aperture manifold |
04/09/1986 | EP0177362A2 Portable radio communication apparatus comprising an antenna member for a broad-band signal |
04/08/1986 | US4581614 Integrated modular phased array antenna |
04/01/1986 | US4580141 Linear array antenna employing the summation of subarrays |
03/26/1986 | EP0175129A2 Nuclear magnetic resonance imaging antenna subsystem having a plurality of non-orthogonal surface coils |
03/19/1986 | EP0174579A2 Shaped beam antenna |
03/11/1986 | US4575728 Dipole array with means for compensating feedline parasitic currents |
03/04/1986 | US4574290 High gain vertically polarized antenna structure |
02/27/1986 | WO1986001340A1 Antenna construction |
02/25/1986 | US4573055 Directionally sensitive receiving antenna |
02/25/1986 | CA1201200A1 Field component diversity antenna arrangement |
02/11/1986 | US4570165 Adjustable loop and dipole antenna |
02/11/1986 | US4570164 Receive antenna system in the presence of a transmitting antenna |
02/05/1986 | EP0170344A2 Dipole antenna system with overhead coverage having equidirectional-linear polarization |
02/04/1986 | US4568944 Y-Shaped dipole antenna |
02/04/1986 | CA1200311A1 Antenna arrangement for personal radio transceivers |
12/24/1985 | US4560120 Method for guiding a missile to a target |
12/17/1985 | US4559540 Antenna system with plural horn feeds |