| Patents for H01Q 19 - Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic (10,176) |
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| 01/07/1988 | EP0250832A2 Cavity-backed slot antenna |
| 01/06/1988 | CN87208263U Uhf/vhf tv receiving antenna |
| 12/30/1987 | CN87200892U Antenna made of inorganic gel materials |
| 12/29/1987 | US4716417 Holographic aircraft antenna |
| 12/17/1987 | WO1987007772A1 Array antenna |
| 12/17/1987 | WO1987007771A1 Reflector antenna with a self-supported feed |
| 12/12/1987 | CN86211074U Board type multi-focal-distance paraboloidal aerial for ground satellite station |
| 12/08/1987 | US4712111 Antenna system |
| 11/19/1987 | DE3616272A1 Antenna having an omnidirectional characteristic |
| 11/11/1987 | EP0244969A2 DBS antenna |
| 11/10/1987 | CA1229162A1 Flared microwave feed horns and waveguide transitions |
| 11/10/1987 | CA1229161A1 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 |
| 10/21/1987 | EP0241921A1 High-efficiency antenna |
| 10/14/1987 | CN87202863U Passive relay antenna for decimetric wave |
| 10/14/1987 | CN87201074U All-directional wideband outdoor receiving antenna for tv |
| 10/13/1987 | US4700197 Adaptive array antenna |
| 10/08/1987 | WO1987006066A1 Wideband horn antenna |
| 10/06/1987 | US4698641 Adjustment device for platform mounted horn antenna |
| 10/06/1987 | US4698640 Adjustable platform mounteed horn antenna |
| 09/30/1987 | EP0238662A1 Optical device |
| 09/17/1987 | DE3608413A1 Directional antenna arrangement |
| 09/09/1987 | EP0235884A1 Omnidirectional antenna |
| 09/08/1987 | US4692772 Antenna extended surface attachment |
| 09/01/1987 | US4690354 Geostationary communications satellite |
| 08/25/1987 | US4689637 Parabola antenna having increased mechanical strength |
| 08/25/1987 | US4689633 Flared microwave feed horns and waveguide transitions |
| 08/25/1987 | US4689632 Reflector antenna system having reduced blockage effects |
| 08/25/1987 | US4689630 Multi-shaped-beam reflector antenna |
| 08/25/1987 | US4689569 For detecting anomalies in geologic formations |
| 08/20/1987 | DE3605195A1 Antenna having a parabolic reflector |
| 08/13/1987 | DE3603260A1 Flexible conductor material |
| 08/12/1987 | EP0231422A2 Microwave transmitter/receiver apparatus |
| 08/12/1987 | EP0092571B1 Wide bandwidth hybrid mode feeds |
| 07/21/1987 | US4682179 Omnidirectional electromagnetic lens |
| 07/01/1987 | EP0227121A1 Horn antenna with a choke surface-wave structure on the outer surface thereof |
| 06/23/1987 | CA1223345A1 Horn-reflector microwave antennas with absorber lined conical feed |
| 06/19/1987 | DE3544092A1 Multi-band antenna for the GHz band |
| 06/18/1987 | WO1987003746A1 High efficiency optical limited scan antenna |
| 06/16/1987 | US4673947 Cassegrain aerial system |
| 06/16/1987 | US4673945 Backfire antenna feeding |
| 06/16/1987 | US4673943 Integrated defense communications system antijamming antenna system |
| 06/09/1987 | US4672387 Antenna systems for omnidirectional pattern |
| 06/02/1987 | CA1222562A1 Low side lobe gregorian antenna |
| 05/27/1987 | CN86206188U Reflecting type focusing aerial with medium ball |
| 05/26/1987 | US4668955 Plural reflector antenna with relatively moveable reflectors |
| 05/26/1987 | CA1222315A1 Tactical high frequency array antennas |
| 05/14/1987 | DE3540007A1 Two-element supply for a Yagi antenna arrangement |
| 05/13/1987 | EP0221181A1 Compact antenna range employing shaped reflectors |
| 05/12/1987 | US4665405 Antenna having two crossed cylindro-parabolic reflectors |
| 05/12/1987 | CA1221763A1 Shaped beam antenna |
| 04/23/1987 | DE3537233A1 Excitor for at least one Yagi antenna structure which is supplied by a coaxial cable |
| 04/21/1987 | US4660050 Doppler radar velocity measurement horn |
| 04/16/1987 | DE3536348A1 Fresnel zone plate for focusing microwave radiation for a microwave antenna |
| 04/15/1987 | EP0217820A1 Hybrid mode horn antennas |
| 04/09/1987 | WO1987002193A1 Optical device |
| 04/08/1987 | EP0217426A2 Microstrip antenna device |
| 03/31/1987 | US4654622 Monolithic integrated dual mode IR/mm-wave focal plane sensor |
| 03/24/1987 | US4652891 Electromagnetic wave spatial filter with circular polarization |
| 03/05/1987 | DE3531032A1 Reflector antenna having supports in the beam path producing secondary radiation |
| 03/05/1987 | DE3530809A1 Parabolic reflector antenna |
| 03/04/1987 | EP0213040A2 External unit for a microwave feed aerial |
| 03/04/1987 | EP0212963A2 Omni-directional antenna |
| 03/03/1987 | US4647942 Circularly polarized antenna for satellite positioning systems |
| 02/18/1987 | CN86201379U Television antenna |
| 02/17/1987 | US4644362 Waveguide antenna output for a high-frequency planar antenna array of radiating or receiving elements |
| 02/12/1987 | DE3527651A1 Additional device for an antenna in the form of an individual aerial |
| 02/11/1987 | CN86104580A Microwave antenna |
| 02/03/1987 | US4640280 Microwave hyperthermia with dielectric lens focusing |
| 01/22/1987 | DE3525553A1 Directional antenna |
| 01/13/1987 | US4636801 Multiple reflector system with dielectric support webs and foam body |
| 01/13/1987 | US4636798 Microwave lens for beam broadening with antenna feeds |
| 01/06/1987 | US4635070 Dual mode antenna having simultaneous operating modes |
| 12/30/1986 | US4633264 Horn antenna |
| 12/30/1986 | CA1216060A1 Method and apparatus for optimizing feedhorn performance |
| 12/23/1986 | US4631547 Reflector antenna having sidelobe suppression elements |
| 12/23/1986 | US4631545 Antenna arrangement capable of astigmatism correction |
| 12/09/1986 | US4628322 Low profile antenna on non-conductive substrate |
| 12/03/1986 | EP0203193A1 High gain-area-product antenna design |
| 12/02/1986 | US4626866 Collapsible foldable aerial |
| 12/02/1986 | US4626863 Low side lobe Gregorian antenna |
| 11/26/1986 | EP0202979A1 Polarization-selective reflecting device and method of making such a device |
| 11/25/1986 | CA1214545A1 Broadband diamond-shaped antenna |
| 11/20/1986 | EP0201727A1 Reflector aerial |
| 11/06/1986 | WO1986006550A1 Compact antenna range employing shaped reflectors |
| 11/04/1986 | CA1213668A1 Two element low profile antenna |
| 10/21/1986 | US4618867 Scanning beam antenna with linear array feed |
| 10/21/1986 | US4618866 Dual reflector antenna system |
| 10/08/1986 | EP0196734A2 Cassegrain antenna for TVRO application |
| 09/24/1986 | EP0195244A1 Aircraft skin antenna |
| 09/17/1986 | EP0194820A2 Radiation collector and reflector |
| 09/12/1986 | WO1986005327A1 Hybrid mode horn antennas |
| 09/09/1986 | US4611214 Tactical high frequency array antennas |
| 08/27/1986 | EP0192048A1 Reflector antenna with struts in the radiating area |
| 08/19/1986 | US4607260 Asymmetrically configured horn antenna |
| 08/19/1986 | US4607259 Adaptive antenna for reducing multipath fades |
| 08/12/1986 | US4605935 Shaped beam reflector antenna |
| 08/12/1986 | CA1209692A1 Antenna with a reflector of open construction |
| 08/05/1986 | US4604627 Flared microwave feed horns and waveguide transitions |
| 08/05/1986 | US4604624 Phased array antenna employing linear scan for wide-angle arc coverage with polarization matching |
| 08/05/1986 | CA1209248A1 Collapsible rooftop microwave antenna |