Patents
Patents for H01Q 13 - Waveguide horns or mouths; Slot aerials; Leaky-waveguide aerials; Equivalent structures causing radiation along the transmission path of a guided wave (15,760)
01/1991
01/25/1991WO1991001577A1 Multi-resonant laminar antenna
01/24/1991CA2017766A1 Annular slot antenna
01/22/1991US4987394 Leaky cables
01/17/1991DE3922165A1 Active, planar wide band aerial sensor for microwave range - has wide elongated slot with slot resonance on substrate surface
01/16/1991EP0408408A1 Collector of electromagnetic radiation
01/15/1991US4985709 Magnetostatic wave device
01/15/1991US4985708 Array antenna with slot radiators offset by inclination to eliminate grating lobes
01/09/1991EP0407258A1 Ultrahigh frequency energy distributor radiating directly
01/09/1991EP0406563A1 Broadband microstrip-fed antenna
01/08/1991US4983986 Three conductor fed slot
01/08/1991US4983237 Antenna lamination technique
01/06/1991CA2016442A1 Broadband microstrip-fed antenna
01/02/1991EP0404905A1 Improved feed waveguide for an array antenna
12/1990
12/27/1990EP0403910A1 Radiating, diplexing element
12/27/1990EP0403894A2 Nested horn radiator assembly
12/26/1990CN1011008B Microwave antenna
12/20/1990CA2019181A1 Diplexing radiating element
12/18/1990US4978965 Broadband dual-polarized frameless radiating element
12/12/1990EP0402005A2 Flush mount antenna
12/12/1990EP0401978A2 Antenna arrangement
12/11/1990US4977406 For receiving polarized waves
12/05/1990EP0400872A1 A flat-plate antenna for use in mobile communications
12/04/1990US4975711 Slot antenna device for portable radiophone
12/04/1990CA1277417C Transponder antenna
11/1990
11/29/1990DE4005770A1 Coaxial cable aerial for communication system - has transmission aerial on transmission platform with several non-tight coaxial cable lengths
11/28/1990EP0399525A1 Skin antenna for high temperatures
11/28/1990EP0399524A1 Structure for the realisation of circuits and components, applied to microwave frequencies
11/24/1990CA2017359A1 High temperature skin antenna
11/24/1990CA2017352A1 Circuit and component realisation structure applied to microwaves
11/22/1990EP0398555A2 Lightweight, low profile phased array antenna with electromagnetically coupled integrated subarrays
11/22/1990EP0398554A2 Multiband gridded focal plane array antenna
11/21/1990CN1047170A Multimode dielectric-loaded multi-flare antenna
11/20/1990US4972505 Tunnel distributed cable antenna system with signal top coupling approximately same radiated energy
11/20/1990US4972199 Low cross-polarization radiator of circularly polarized radiation
11/16/1990CA2014665A1 Lightweight, low profile phased array antenna with electromagnetically coupled integrated subarrays
11/16/1990CA2014664A1 Multiband gridded focal plane array antenna
11/14/1990CN1046998A Flat slot array antenna for te mode wave
11/08/1990DE3914525A1 Microwave receiver for use in MM range - is formed as slot line structure in base metallising of planar, dielectric substrate
11/01/1990WO1990013154A1 Dual frequency microwave feed assembly
11/01/1990WO1990013153A1 Reflector for converging reflected electromagnetic radiation in an aperture positioned at the rear of the reflector
10/1990
10/31/1990EP0394960A1 A microstrip antenna
10/31/1990EP0394931A2 Annular slot antenna
10/28/1990CA2015775A1 Te mode wave flat slot array antenna
10/23/1990US4965869 Aperture antenna having nonuniform resistivity
10/23/1990US4965605 Lightweight, low profile phased array antenna with electromagnetically coupled integrated subarrays
10/16/1990US4963892 Microwave plane antenna with two arrays which have beams aligned in the same direction
10/16/1990US4963891 Planar antenna
10/03/1990EP0390350A2 Low cross-polarization radiator of circularly polarized radiation
09/1990
09/19/1990EP0388377A1 An arrangement for supplying power to a hollow wave-guide intended for electromagnetic microwaves
09/18/1990US4958166 Amplitude monopulse slotted array
09/18/1990US4958165 Circular polarization antenna
09/13/1990DE3907606A1 Microwave antenna
08/1990
08/29/1990EP0384777A2 Antenna element
08/28/1990US4952892 Wave guide impedance matching method and apparatus
08/28/1990CA1273429A1 Broadbanded microstrip antenna having series- broadbanding capacitance integral with feedline connection
08/22/1990EP0383597A2 Planar antenna
08/22/1990EP0383292A2 Electronic circuit device
08/22/1990EP0382901A2 Vehicle antenna in the shape of a slot antenna
08/14/1990US4949094 Nearfield/farfield antenna with parasitic array
08/07/1990US4947181 Asymmetrical biconical horn antenna
08/04/1990WO1990009042A1 Antenna arrays
08/02/1990DE4002678A1 Kreisschlitz-arrayantenne mit abgleichteil Circular slot-array antenna with matching part
08/01/1990EP0380212A2 Control for flexible probe
07/1990
07/27/1990CA2008458A1 Control for flexible probe
07/25/1990EP0379434A1 Ultra-high frequency and high-temperature antenna, especially for a spacecraft
07/18/1990EP0377920A1 A slot antenna
07/18/1990EP0377858A1 Embedded surface wave antenna
07/11/1990EP0377155A1 Dual frequency radiating device
07/10/1990US4940990 Intrabuilding wireless communication system
07/04/1990EP0376701A2 Flat-plate patch antenna
07/04/1990EP0376643A2 Flat-plate antenna for use in mobile communications
07/04/1990EP0376540A2 Compensated microwave feed horn
07/04/1990EP0376074A2 Dual polarization microstrip array antenna
07/04/1990EP0375840A2 Apparatus for transmitting high-frequency signals
06/1990
06/28/1990WO1990007201A1 Improved feed waveguide for an array antenna
06/28/1990WO1990007200A1 Ultralight microwave antenna and method of fabrication
06/28/1990WO1990007130A1 Millimiter-wave imaging system, particularly for contraband detection
06/27/1990EP0375416A2 Plane slot antenna
06/27/1990EP0375415A2 Plane slot antennas and their use in motor vehicles
06/19/1990CA2003468A1 Ultralight microwave antenna and method of fabrication
06/19/1990CA1270557A1 Dual frequency antenna feeding
06/13/1990EP0372023A1 Multimode dielectric-loaded multi-flare antenna
06/12/1990US4933680 Microstrip antenna system with multiple frequency elements
06/12/1990US4933679 Antenna
06/05/1990US4931808 Embedded surface wave antenna
05/1990
05/29/1990US4929962 Feed horn for a telecommunications antenna
05/29/1990US4929959 Dual-polarized printed circuit antenna having its elements capacitively coupled to feedlines
05/15/1990US4926189 High-gain single- and dual-polarized antennas employing gridded printed-circuit elements
05/08/1990US4924237 Antenna and its electronic circuit combination
04/1990
04/26/1990DE3835678A1 Tube-weapon system
04/24/1990US4920351 Diplexer for orthogonally polarized transmit/receive signalling on common frequency
04/17/1990US4918749 Receiving configuration for microwave signals
04/17/1990US4918458 Secondary radar transponder
04/17/1990US4918457 Antenna formed of strip transmission lines with non-conductive coupling
04/10/1990US4916458 Slotted waveguide antenna
04/10/1990US4916457 Printed-circuit crossed-slot antenna
04/04/1990EP0361417A2 Microstrip antenna system with multiple frequency elements
04/04/1990EP0361294A1 Revolution reflector antenna
04/03/1990US4914449 Microwave antenna structure with intergral radome and rear cover
03/1990
03/14/1990EP0358308A1 Vehicle slot antenna with parasitic slot