Patents for H01Q 21 - Aerial arrays or systems (25,127) |
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02/11/1988 | WO1988001106A1 Low sidelobe solid state array antenna apparatus and process for configuring an array antenna aperture |
02/11/1988 | WO1988001105A1 Modular antenna array |
02/11/1988 | WO1988001062A1 Radar transceiver employing circularly polarized waveforms |
02/09/1988 | US4724441 Transmit/receive module for phased array antenna system |
02/04/1988 | DE3625113A1 Aerial element which is provided for a phased-array antenna |
01/27/1988 | EP0253877A1 Aerial systems. |
01/21/1988 | DE3624528A1 Antenna arrangement |
01/20/1988 | EP0253128A1 Microwave antenna |
01/20/1988 | CN87104687A Microwave antenna |
01/20/1988 | CN87103632A Combined up and down feed network for a communication satellite antenna |
01/14/1988 | DE3621117A1 Vehicle antenna for the decimetric waveband |
01/14/1988 | DE3608183C1 Antenna plug socket |
01/13/1988 | EP0252779A1 Aerial element with a suspended stripeline between two self-supporting ground planes provided with superimposed radiating slots, and processes for its manufacture |
01/12/1988 | US4719470 Broadband printed circuit antenna with direct feed |
01/12/1988 | CA1231439A1 A low-profile microstrip antenna |
01/07/1988 | EP0251818A2 Omnidirectional antenna assembly |
01/06/1988 | CN87208263U Uhf/vhf tv receiving antenna |
12/29/1987 | US4716415 Dual polarization flat plate antenna |
12/23/1987 | EP0250082A2 Vehicleincluding a radar antenna |
12/17/1987 | WO1987007772A1 Array antenna |
12/16/1987 | EP0249303A1 A dipole array |
12/15/1987 | US4713670 Planar microwave antenna having high antenna gain |
12/10/1987 | DE3619028A1 Direction-finding antenna arrangement |
12/03/1987 | WO1987007440A1 Horn antenna array phase matched over large bandwidths |
12/03/1987 | WO1987007439A1 Combined uplink and downlink satellite antenna feed network |
12/01/1987 | US4710972 SHF receiver |
12/01/1987 | US4710775 Parasitically coupled, complementary slot-dipole antenna element |
11/25/1987 | EP0246640A2 Transmit/receive module for phased array antenna system |
11/10/1987 | CA1229161A1 Waveguide antenna output for a high-frequency planar antenna comprising an array of radiating or receiving elements and a system for transmitting or receiving high-frequency signals comprising a planar antenna having such an antenna output |
10/28/1987 | EP0243289A1 Plate antenna with two crossed polarizations |
10/22/1987 | DE3613258A1 Semiconductor substrate with at least one monolithically integrated circuit |
10/20/1987 | US4701764 Miniature high-gain antenna |
10/20/1987 | US4700716 Collinear antenna array applicator |
10/14/1987 | EP0241380A1 Method and device for focusing an antenna array at a test point |
10/13/1987 | US4700193 Cross-polarized antenna |
10/06/1987 | US4698639 Circularly polarized leaky waveguide doppler antenna |
10/06/1987 | US4698638 Dual mode target seeking system |
10/06/1987 | US4698633 Antennas for wide bandwidth signals |
09/30/1987 | EP0239069A1 Printed-circuit antenna array |
09/22/1987 | US4695693 Triangular antenna array for microwave oven |
09/16/1987 | EP0237392A1 Transmission centre, particularly for decametric waves |
09/09/1987 | EP0235623A1 Device for adjusting the polarization of an antenna and method for using such a device |
09/01/1987 | US4691206 Microstrip and cavity-backed aperture antenna |
09/01/1987 | US4691205 Beam forming network for circularly polarized shaped beam antenna system |
08/25/1987 | US4689631 Space amplifier |
08/25/1987 | US4689627 Dual band phased antenna array using wideband element with diplexer |
08/13/1987 | WO1987004865A1 Aerial systems |
08/11/1987 | US4686536 Crossed-drooping dipole antenna |
08/11/1987 | US4686535 Microstrip antenna system with fixed beam steering for rotating projectile radar system |
08/04/1987 | US4684953 Reduced height monopole/crossed slot antenna |
08/04/1987 | US4684952 Microstrip reflectarray for satellite communication and radar cross-section enhancement or reduction |
07/28/1987 | US4683474 Survivable ground base sensor |
07/15/1987 | EP0228743A1 Plane microwave antenna for the simultaneous reception of two polarizations |
07/15/1987 | EP0228742A1 Plane microwave antenna with suspended strip lines, and method for its production |
07/14/1987 | US4680591 Helical antenna array with resonant cavity and impedance matching means |
07/08/1987 | EP0228131A2 Strip transmission line antenna array |
07/08/1987 | EP0227910A2 Beam forming network for a butler matrix fed circular array |
07/07/1987 | US4679051 Microwave plane antenna |
07/07/1987 | US4679046 Transponder systems |
07/01/1987 | CN86205308U Combined v-type full-frequency channel tv receiving antenna |
06/23/1987 | US4675678 Method of landing aircraft aboard a carrier at sea |
06/19/1987 | DE3544092A1 Multi-band antenna for the GHz band |
06/18/1987 | WO1987003746A1 High efficiency optical limited scan antenna |
06/16/1987 | US4673943 Integrated defense communications system antijamming antenna system |
06/09/1987 | US4672687 Polarity switch for satellite television receiver |
06/09/1987 | US4672386 Antenna with radial and edge slot radiators fed with stripline |
06/09/1987 | US4672384 Circularly polarized radio frequency antenna |
06/02/1987 | USH288 Interference cancelling transmitter |
05/26/1987 | US4668956 Broadband cup antennas |
05/26/1987 | US4668953 Electrical power dividers |
05/20/1987 | CN85103804A Antenna device for receiving and transmitting electromagnetic waves |
05/13/1987 | CN86205322U Combined all frequency channel tv aerial |
05/06/1987 | EP0221036A1 Wave guide element for an electrically controlled radar antenna |
05/06/1987 | EP0220867A2 Apparatus for receiving satellite broadcast signals |
04/29/1987 | CN86203099U Uhf/vhf compatible television directional receiving antenna |
04/29/1987 | CN86105126A Microwave antenna |
04/21/1987 | US4660048 Microstrip patch antenna system |
04/14/1987 | US4658261 Circumferential slotted ridged waveguide array antenna |
04/09/1987 | WO1987002192A1 Waveguide slot array antenna |
04/08/1987 | CN86203063U Combined tv antenna |
04/07/1987 | US4656482 Wideband wing-conformal phased-array antenna having dielectric-loaded log-periodic electrically-small, folded monopole elements |
03/31/1987 | US4654668 Microstrip circuit temperature compensation with stub means |
03/31/1987 | CA1219948A1 Shielded, closely spaced transmit-receiver antennas for electronic article surveillance system |
03/25/1987 | EP0215240A2 Planar-array antenna for circularly polarized microwaves |
03/24/1987 | US4652883 Radar signal phase shifter |
03/18/1987 | EP0214829A2 Omnidirectional antenna array |
03/18/1987 | EP0214806A2 Portable radio |
03/12/1987 | WO1987001536A1 Receiver-processor |
03/11/1987 | EP0213646A1 Modular microwave antenna units and antenna comprising such units |
03/10/1987 | USRE32369 Monolithic microwave integrated circuit with integral array antenna |
03/03/1987 | US4647942 Circularly polarized antenna for satellite positioning systems |
03/03/1987 | US4647940 Parallel plate waveguide antenna |
03/03/1987 | US4647933 Phased antenna array for wind profiling applications |
02/24/1987 | US4646099 Three-dimensional fourier-transform device |
02/17/1987 | US4644362 Waveguide antenna output for a high-frequency planar antenna array of radiating or receiving elements |
02/17/1987 | US4644361 Combination microstrip and unipole antenna |
02/17/1987 | US4644360 Microstrip space duplexed antenna |
02/17/1987 | US4644343 Y-slot waveguide antenna element |
02/12/1987 | DE3527651A1 Additional device for an antenna in the form of an individual aerial |
02/10/1987 | US4642645 Reducing grating lobes due to subarray amplitude tapering |