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