| Patents for H01Q 15 - Devices for reflection, refraction, diffraction, or polarisation of waves radiated from an aerial, e.g. quasi-optical devices (7,888) |
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| 05/26/1994 | WO1994011920A1 Waveguide lens and method for manufacturing the same |
| 05/24/1994 | US5315303 Compact, flexible and integrated millimeter wave radar sensor |
| 05/18/1994 | CN2165534Y Dual polarising frequency down converter for satellite pick-up antenna |
| 05/11/1994 | WO1994010721A1 Electrostatically shaped membranes |
| 05/10/1994 | US5311202 Frequency-selective surface structure having H-shaped slots |
| 05/04/1994 | EP0595418A1 Reflecting parabolic antenna for e.m. wave reception and related manufacturing method |
| 05/04/1994 | CN2164118Y Single-offset paraboloid antenna made of high-mdecular composite material |
| 04/27/1994 | EP0593903A1 Identical surface shaped reflectors in semi-tandem arrangement |
| 04/26/1994 | US5307082 Electrostatically shaped membranes |
| 04/26/1994 | US5307080 Expansible antenna apparatus |
| 04/26/1994 | US5307077 Multi-spectral seeker antenna |
| 04/26/1994 | CA1328922C Dual frequency microwave feed assembly |
| 04/20/1994 | EP0592584A1 A device for gauging the level of a fluid. |
| 04/20/1994 | EP0538346B1 A phase correcting reflection zone plate for focusing microwaves |
| 04/13/1994 | EP0591502A1 Metal framework for moulded articles |
| 04/13/1994 | CN2162002Y Hydraulic forming paraboloidal aerial die set |
| 04/12/1994 | US5302962 Antenna system producing a millimeter wave beam having a gaussian-like distribution |
| 04/06/1994 | CN2160997Y Directional radiation aerial for hand wireless movable telephone |
| 03/30/1994 | EP0589154A1 Antenna reflector |
| 03/29/1994 | US5298911 Serrated-roll edge for microwave antennas |
| 03/23/1994 | EP0588322A1 Equalized offset fed shaped reflector antenna system and technique for equalizing same |
| 03/23/1994 | EP0587810A1 Process for the production of lenses with a variable refraction index. |
| 03/23/1994 | EP0587750A1 Quasi-optical transmission/reflection switch and millimeter-wave imaging system using the same |
| 03/17/1994 | DE3515861C1 Sensor unit for target seeking sub-munition missile - has parabolic reflector insert in nose with polarising deflector and filter to recover radiated beam |
| 03/04/1994 | CA2105546A1 Antenna reflector arrangement |
| 03/02/1994 | EP0584974A1 Antenna arrangements |
| 03/01/1994 | US5291212 Grid-type paraboloidal microwave antenna |
| 02/23/1994 | EP0583557A1 Window glazing |
| 02/23/1994 | CN1082775A Reinforced composite material parabolic microwave aerial |
| 02/16/1994 | EP0582793A1 Load materials for use in microwave lenses |
| 02/16/1994 | CN2156591Y Plane plate shape microwave antenna reflector |
| 02/15/1994 | US5287118 Layer frequency selective surface assembly and method of modulating the power or frequency characteristics thereof |
| 02/08/1994 | US5285213 Electromagnetic radiation reflector |
| 02/01/1994 | US5283591 Fixed-reflector antenna for plural telecommunication beams |
| 01/26/1994 | CN2154539Y Satellite television receiving antenna made of compound material |
| 01/20/1994 | WO1994001900A1 Phase correcting zone plate |
| 01/20/1994 | CA2139761A1 Phase correcting zone plate |
| 01/18/1994 | US5280298 Circular polarization selective surface made of resonant spirals |
| 01/18/1994 | CA1326156C Method of manufacturing dichroic antenna structures |
| 01/06/1994 | WO1994000892A1 A waveguide and an antenna including a frequency selective surface |
| 01/06/1994 | WO1994000891A1 Reconfigurable frequency selective surfaces |
| 01/06/1994 | WO1994000734A1 Method and apparatus of stud array upstand setting |
| 01/06/1994 | CA2137678A1 Method and apparatus of stud array upstand setting |
| 01/04/1994 | US5276449 Radar retroreflector with polarization control |
| 01/04/1994 | US5276410 Circular to linear polarization converter |
| 12/29/1993 | EP0575850A2 Direct laser imaging for three-dimensional circuits and the like |
| 12/29/1993 | EP0575848A2 Ablative process for printed circuit board technology |
| 12/23/1993 | WO1993026059A1 Millimeter wave beam deflector |
| 12/22/1993 | CN2150629Y Double substrate micro-wave satellite antenna |
| 12/14/1993 | US5270726 Rectangular aperture reflector for radar cross section and antenna pattern compact ranges |
| 12/09/1993 | WO1993024307A1 Method for making a material with artificial dielectric constant |
| 12/09/1993 | CA2136109A1 Method for making a material with artificial dielectric constant |
| 11/25/1993 | WO1993023893A1 Electromagnetic energy absorbing structure |
| 11/24/1993 | CN1078828A Glass fibre reinforced plastics satellite antenna |
| 11/23/1993 | US5264064 Method and system for radio frequency energy transmission in an imperforate composite structure |
| 11/18/1993 | EP0569390A1 Antenna system. |
| 11/17/1993 | CN2146783Y Metal face-plastic substrate microwave aerial reflector |
| 11/11/1993 | WO1993022806A1 A folded lens antenna |
| 11/09/1993 | US5260713 Microwave signal receiving apparatus |
| 11/03/1993 | EP0568511A1 Screen device |
| 11/02/1993 | US5258768 Dual band frequency reuse antenna |
| 11/02/1993 | US5258767 Antenna system for shaped beam |
| 10/26/1993 | US5257034 Collapsible apparatus for forming a paraboloid surface |
| 10/22/1993 | WO1993021367A1 Metal framework for moulded articles |
| 10/22/1993 | CA2103043A1 Process for incorporating a metal framework inside a plastic material in order to make moulded articles; new type of metal framework specially adapted for the implementation of such a process, and moulded article incorporating such a framework |
| 10/19/1993 | US5255125 Particulate obscurant disseminator air source |
| 10/19/1993 | US5255006 Collapsible apparatus for forming a dish shaped surface |
| 10/19/1993 | US5255003 Multiple-frequency microwave feed assembly |
| 10/12/1993 | CA1323087C Marine navigation and positioning system |
| 09/22/1993 | EP0561675A1 Receiving antenna with a single pointing direction for reception from several satellites of different orbiting positions |
| 09/18/1993 | CA2091730A1 Receiving antenna with single aiming direction for several satellites having different orbital positions |
| 09/15/1993 | EP0559849A1 Vehicle navigation system |
| 09/14/1993 | US5245352 Threshold sensitive low visibility reflecting surface |
| 09/07/1993 | US5243186 Photonic electromagnetic field sensor apparatus |
| 09/01/1993 | EP0557334A1 A polarisation discriminator for electromagnetic waves with circular polarisation and dichroic surfaces including pluralities of such discriminators |
| 08/27/1993 | CA2062029A1 Circular polarization selective surface made of resonant spirals |
| 08/25/1993 | CN2141127Y Layered wide-band plane-plate-type reflecting surface microwave aerial |
| 08/18/1993 | EP0555262A1 Method for the fabrication of lenses with a variable refraction index. |
| 08/17/1993 | US5237337 Method and apparatus for manufacturing and erecting concave metallic membrane type reflectors |
| 08/17/1993 | US5237328 Phase modulation means |
| 08/11/1993 | EP0554847A1 Switchable resonant filter for optical radiation |
| 08/10/1993 | US5234715 Method of making galvanically dissipatable evanescent chaff fiber |
| 08/10/1993 | CA1321263C Antenna system with adjustable beam width and beam orientation |
| 08/03/1993 | US5233364 Dual-polarized microwave antenna element |
| 07/27/1993 | US5231532 Switchable resonant filter for optical radiation |
| 07/13/1993 | US5227800 Contraband detection system |
| 07/13/1993 | US5227223 Electroless deposition of metal in catalytic pattern onto web |
| 07/06/1993 | US5225668 Photonic electromagnetic field sensor apparatus |
| 06/29/1993 | US5223849 Broadband electromagnetic energy absorber |
| 06/16/1993 | EP0546913A1 Antenna with fixed reflector for plural beams of communication systems |
| 06/16/1993 | EP0546601A1 Planar antenna |
| 06/16/1993 | CN1073303A Dielectric material for antennas |
| 06/09/1993 | EP0545573A1 Signal transmission by reflector antennae |
| 06/09/1993 | CN1073049A Method for building satellite T.V. paraboloidal aerial with reinforced concrete |
| 06/08/1993 | US5218373 Hermetically sealed waffle-wall configured assembly including sidewall and cover radiating elements and a base-sealed waveguide window |
| 06/02/1993 | CN2135197Y Satellite receiving aerial |
| 05/27/1993 | WO1993010572A1 Dielectric material for antennas |
| 05/27/1993 | DE4137974A1 Foldable satellite reception aerial - has metallised, textile fabric as reflector, whose struts are curved strips forming paraboloid |
| 05/25/1993 | US5214432 Broadband electromagnetic energy absorber |
| 05/25/1993 | CA1318380C Military aircraft |