| 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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| 03/23/1982 | CA1120583A1 Antenna for circular scanning |
| 03/16/1982 | US4320403 Use of metallized sheet-form textile materials as reflection and polarization control media for microwaves |
| 03/10/1982 | EP0046996A1 Antenna systems |
| 03/09/1982 | US4319250 Offset dual-reflector aerial having tapered reflector segments in main reflector |
| 03/02/1982 | US4318108 Bidirectionally focusing antenna |
| 02/18/1982 | WO1982000545A1 Parabolic reflector and method of making the same |
| 02/09/1982 | US4315265 Rigid collapsible dish structure |
| 02/09/1982 | CA1118083A1 Radiation reflecting target surface |
| 02/02/1982 | US4314255 Electromagnetic angle filter including two staggered, identical, periodically perforated conductive plates |
| 02/02/1982 | US4314253 Portable folding microwave antenna |
| 02/02/1982 | US4314249 Radar reflector with variable electric reflectivity |
| 01/27/1982 | EP0044503A1 Polariser for the generation of circularly polarised electromagnetic waves |
| 01/27/1982 | EP0044502A1 Polarising device for conversion of linearly polarised into circularly polarised electromagnetic waves, mounted in front of a parabolic reflector antenna |
| 01/26/1982 | US4312573 Ellipticized infrared lens providing balanced astigmatism |
| 01/20/1982 | EP0044241A1 Collapsible antenna reflector |
| 01/05/1982 | US4309710 Multi-lobe antenna having a disc-shaped Luneberg lens |
| 01/05/1982 | US4309708 Vehicle mounting for a portable microwave antenna dish |
| 01/05/1982 | US4309705 Chaff ejecting device |
| 12/30/1981 | EP0042612A1 Arrangement for transforming the polarization of electromagnetic waves |
| 12/30/1981 | EP0042611A1 Conductive screen for circularly polarising electromagnetic waves |
| 12/22/1981 | US4307404 Dichroic scanner for conscan antenna feed systems |
| 12/22/1981 | US4307403 Aperture antenna having the improved cross-polarization performance |
| 12/22/1981 | US4306777 Ellipticized optical lens providing balanced astigmatism |
| 12/16/1981 | EP0041607A2 Process for the coating of flexible substrates composed of metallized textile fibres , and their use in the production of objects that reflect micro-waves |
| 12/08/1981 | US4304517 Chaff ejection device |
| 11/03/1981 | US4298876 Polarizer for microwave antenna |
| 10/27/1981 | US4297709 Luneberg lens antenna |
| 10/13/1981 | US4295143 Low wind load modified farabolic antenna |
| 10/13/1981 | CA1110722A1 Feeder arrangement for an aerial for inter alia satellite signals |
| 10/06/1981 | US4293858 Polarization agile meander line array |
| 09/08/1981 | US4288337 Lightweight materials having a high dielectric constant and their method of manufacture |
| 09/01/1981 | US4287520 Slot chevron element for periodic antennas and radomes |
| 08/18/1981 | US4284992 Wide scan quasi-optical frequency diplexer |
| 08/18/1981 | US4284991 Common antenna for primary and secondary radar system |
| 08/04/1981 | US4281900 Frontal reflector bracing |
| 08/04/1981 | CA1106476A1 Airport surface detection equipment (asde) |
| 08/04/1981 | CA1106341A1 Supporting structure for reflectors, solar cells or solar cell carriers |
| 07/29/1981 | EP0032604A1 Radar reflector |
| 07/21/1981 | CA1105613A1 Antenna beam shaping structure |
| 06/16/1981 | US4274099 Random conductive roving reflective surfacing for antennas and guides |
| 06/09/1981 | US4272768 Multi-purpose survival canteen |
| 05/26/1981 | US4270129 Apparatus and method for realizing preselected free space antenna patterns |
| 05/19/1981 | US4268835 Parabolic reflector |
| 05/19/1981 | US4268831 Antenna for scanning a limited spatial sector |
| 05/05/1981 | US4266203 Microwave polarization transformer |
| 05/05/1981 | CA1100625A1 Plane wave lens |
| 04/07/1981 | US4260993 Dual-band antenna with periscopic supply system |
| 04/07/1981 | US4260991 Luneberg type passive reflector for circularly polarized waves |
| 04/01/1981 | EP0026054A1 Radar corner reflector |
| 04/01/1981 | EP0026001A1 Antenna for direct reception from satellites |
| 04/01/1981 | EP0025927A2 Gilded metallized textile fabrics, yarns and fibres, process for their production and use of these textiles in the absorption and reflexion of microwaves |
| 04/01/1981 | EP0025834A2 Solar collector with a parabolic reflecting element |
| 02/24/1981 | US4253190 Communications system using a mirror kept in outer space by electromagnetic radiation pressure |
| 02/03/1981 | US4249184 Antenna arm and method for making the arm |
| 02/03/1981 | US4249183 Periscope arrangement with protection against parasitic radiation |
| 01/20/1981 | US4245895 Supporting structure for reflectors, solar cells or solar cell carriers |
| 12/30/1980 | US4242686 Three-dimensionally curved, knit wire electromagnetic wave reflector |
| 12/30/1980 | CA1092688A1 Augmented perspective radar display |
| 12/23/1980 | US4241349 Apparatus for disposing corner cube reflector for detection |
| 12/23/1980 | CA1092224A1 Radar reflector |
| 11/25/1980 | CA1090070A1 Method of manufacturing a metallized plastic reflector |
| 11/11/1980 | US4233605 Helicopter radar decoy |
| 11/04/1980 | US4232322 Antenna having radiation pattern with main lobe of generally elliptical cross-section |
| 10/14/1980 | US4228437 Wideband polarization-transforming electromagnetic mirror |
| 10/01/1980 | EP0016018A1 Forming mould or article |
| 09/23/1980 | US4224626 Ellipticized lens providing balanced astigmatism |
| 09/17/1980 | EP0015815A1 Microwave reflector with parallel strips and method of manufacturing such a reflector |
| 09/17/1980 | EP0015804A2 Polarizing device and microwave antenna comprising same |
| 09/17/1980 | EP0015594A1 Chaff ejection device |
| 09/16/1980 | CA1085955A1 Periscopic assembly with supporting tube and arrays of such assemblies |
| 09/03/1980 | EP0015018A1 A lens antenna arrangement |
| 09/02/1980 | US4220957 Dual frequency horn antenna system |
| 08/26/1980 | US4219820 Coupling compensation device for circularly polarized horn antenna array |
| 08/19/1980 | US4218683 Range focus lens |
| 08/12/1980 | US4217590 Electromagnetic lens for RF aerials |
| 07/22/1980 | US4214248 Transreflector scanning antenna |
| 07/15/1980 | US4213126 Airport surface detection equipment (ASDE) |
| 07/09/1980 | EP0013240A1 Common antenna for primary and secondary radar |
| 06/25/1980 | EP0012482A1 A device for ejecting radar chaff |
| 05/27/1980 | CA1078498A1 Microwave radiation method and apparatus with a combined diffraction edge and radiation screen |
| 05/14/1980 | EP0010711A1 Use of a metallised fabric as a microwave reflector |
| 05/06/1980 | US4201991 Antenna structure assembled from separable parts |
| 04/15/1980 | US4198640 Reflectarray antenna |
| 04/15/1980 | US4198639 Parabolic and log periodic antennas combined for compact high-gain broadband antenna system |
| 04/02/1980 | EP0009063A1 Parallel plate electromagnetic lens |
| 04/01/1980 | CA1074910A1 Modification of radar echoes |
| 03/25/1980 | US4195298 Target radar reflector |
| 03/25/1980 | CA1074424A1 Radar reflector for buoys and other floating objects |
| 03/18/1980 | US4194209 Broadband waveguide lens antenna and method of fabrication |
| 03/04/1980 | US4191604 Method of constructing three-dimensionally curved, knit wire reflector |
| 02/12/1980 | US4188358 Method of manufacturing a metallized plastic reflector |
| 01/22/1980 | US4185287 Mechanically scanned antenna system |
| 01/15/1980 | US4184155 Radar target for remotely sensing hydrological phenomena |
| 01/09/1980 | EP0006391A1 Periscopic feed system for two-band antenna |
| 12/27/1979 | WO1979001159A1 Forming mould or article |
| 12/11/1979 | US4178574 Horn antenna with rotating waveguide and polarization lens means |
| 11/27/1979 | US4176355 Radiation reflecting target surface |
| 10/30/1979 | CA1065474A1 Parabolic dish and method of constructing same |
| 10/23/1979 | US4171563 Method of manufacturing an antenna reflector |
| 10/09/1979 | US4170775 Communication system beamport sidelobe canceller |