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