| 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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| 03/29/1990 | DE3832361A1 Method for reducing the dimensions of a reflector of an antenna |
| 03/07/1990 | EP0356510A1 Radar reflectors |
| 02/27/1990 | US4905014 Microwave phasing structures for electromagnetically emulating reflective surfaces and focusing elements of selected geometry |
| 02/22/1990 | WO1990001813A1 Antennas |
| 02/20/1990 | US4903037 Dual frequency microwave feed assembly |
| 02/20/1990 | US4903033 Planar dual polarization antenna |
| 02/13/1990 | US4901086 Lens/polarizer radome |
| 02/13/1990 | US4901084 Object detection and location system |
| 02/13/1990 | US4901081 Elliptical inflatable radar reflector |
| 02/08/1990 | WO1990001223A1 Reflector antenna with off set feeding |
| 02/07/1990 | EP0353846A2 A method of producing an antenna system having main and auxiliary reflecting surfaces |
| 02/06/1990 | US4899167 Collapsible antenna |
| 01/30/1990 | US4897664 Image plate/short backfire antenna |
| 01/30/1990 | US4897151 Method for fabricating a dichroic parabolic lens reflector |
| 01/23/1990 | US4896165 Module for expandable structure and expandable structure employing said module |
| 01/09/1990 | US4893132 Assembly system for maintaining reflector segments of an antenna in precision alignment |
| 01/04/1990 | DE3809041A1 Militaerisches luftfahrzeug Military aircraft |
| 12/28/1989 | DE3441269A1 Method for modulating the amplitude of the secondary lobes of the radiation pattern of a UHF antenna, application of the method and filter for carrying out the method |
| 12/19/1989 | US4888234 Formable fiber composite |
| 12/05/1989 | US4885556 Circularly polarized evanescent mode radiator |
| 11/29/1989 | EP0343813A2 Radar transparent materials |
| 11/28/1989 | US4884076 Foam supported electromagnetic energy reflecting device |
| 11/21/1989 | CA1263180A1 Linearly polarized grid reflector antenna systems with improved cross-polarization performance |
| 10/31/1989 | CA1262571A1 Radome-lens ehf antenna development |
| 10/24/1989 | US4875766 Fiber reinforced plastic reflector |
| 10/11/1989 | EP0336745A2 Portable antenna apparatus |
| 10/11/1989 | EP0336094A1 Flexible materials for reflecting electromagnetic wave |
| 10/05/1989 | WO1989009500A1 Reflector for electromagnetic radiation |
| 10/03/1989 | USH694 Movable thermal and radar vehicular decoy |
| 10/03/1989 | US4872019 Radome-lens EHF antenna development |
| 09/27/1989 | EP0334815A1 Radiation filter |
| 09/26/1989 | CA1260611A1 Equiphase refractive antenna lens |
| 09/21/1989 | WO1989008932A1 A solid dielectric lens aerial |
| 09/19/1989 | US4868580 Radio-frequency reflective fabric |
| 09/06/1989 | EP0331248A1 Antenna system with adjustable beam width and beam orientation |
| 09/05/1989 | USH679 Foldable towable thermal and radar vehicular decoy |
| 09/05/1989 | US4864321 Electromagnetic energy shield |
| 09/05/1989 | US4864314 Dual band antennas with microstrip array mounted atop a slot array |
| 08/29/1989 | US4862190 Deployable offset dish structure |
| 08/29/1989 | US4862188 Microwave antenna of light weight and small bulk |
| 08/24/1989 | WO1989007840A1 Radar reflectors |
| 08/23/1989 | EP0328635A1 Method and structure for reflectror surface adjustment |
| 08/22/1989 | US4860023 Parabolic reflector antennas and method of making same |
| 08/22/1989 | US4860022 Satellite dish antenna support rib apparatus |
| 07/27/1989 | DE3801301A1 Fresnel zone plate (Fresnel lens) as a reflector for a microwave transmitting/receiving antenna |
| 07/26/1989 | EP0325539A1 Positioning system for a moving object |
| 07/25/1989 | US4851858 Reflector antenna for operation in more than one frequency band |
| 07/19/1989 | EP0323990A1 Process for manufacturing a material having predetermined dielectric, pyroelectric and/or magnetic properties and its use |
| 07/13/1989 | WO1989006338A1 Infrared signature control mechanism |
| 07/11/1989 | US4847628 Frequency independent constant beamwidth directional lens antenna for very wideband and multi-channel electromagnetic communications |
| 07/11/1989 | CA1257385A1 Antenna and method for fabricating same |
| 07/04/1989 | US4845511 Space deployable domed solar concentrator with foldable panels and hinge therefor |
| 07/04/1989 | US4845510 Reflector surface adjustment structure |
| 07/04/1989 | CA1256991A1 Antenna post base support and method of installing same |
| 06/27/1989 | US4843396 Trihedral radar reflector |
| 06/27/1989 | US4841989 Applicator for use in hyperthermia |
| 06/20/1989 | US4841305 Method of sectioning an antennae reflector |
| 06/20/1989 | CA1256201A1 Mesh dish antenna and hub |
| 05/30/1989 | US4835087 Method of making a dichroic antenna structure |
| 05/24/1989 | CN1033129A Method for manufacturing paraboloid antenna through global formation and segmentation process |
| 05/23/1989 | US4833484 Earth terminal for satellite communication |
| 05/17/1989 | EP0315926A1 Process for transforming copper patterns on a parabolic support made of a composite material |
| 05/16/1989 | US4831384 Polarization-sensitive receiver for microwave signals |
| 05/03/1989 | EP0313623A1 Microwave lens and array antenna |
| 04/25/1989 | US4825225 Hyperboloidal deployable space antenna |
| 04/25/1989 | US4825223 Microwave reflector assembly |
| 04/20/1989 | WO1989003444A1 Conductive non-woven fabrics |
| 04/18/1989 | US4823131 Radar reflector |
| 04/05/1989 | EP0310414A2 Lens/polarizer/radome |
| 03/29/1989 | EP0308830A2 Antenna system |
| 03/21/1989 | US4814785 Wideband gridded square frequency selective surface |
| 03/14/1989 | US4812854 Electroconductive flexible reflective surfaces; microwave transmission |
| 03/14/1989 | CA1251267A1 Polarizers with alternatingly circular and rectangular waveguide sections |
| 03/09/1989 | WO1989002213A1 Process for producing conductive patterns on a substrate |
| 03/09/1989 | DE3728976A1 Cassegrain antenna for the microwave band |
| 03/07/1989 | US4811034 Stowable reflector |
| 03/07/1989 | US4811033 Antenna surface contour control system |
| 03/07/1989 | US4811026 Mobile satellite receiving antenna especially for recreation vehicle |
| 03/01/1989 | EP0305267A1 Production method of the totality of conducting patterns on an insulating surface of complex shape |
| 03/01/1989 | EP0304656A1 Directional antenna for relay systems |
| 02/28/1989 | US4809003 Almond test body |
| 02/28/1989 | US4808254 Method for assembling the constitutive elements of an antenna reflector |
| 02/23/1989 | WO1989001708A1 Method and structure for reflectror surface adjustment |
| 02/21/1989 | US4805532 Deploying arrangement for an on-board targeting device of a bomblet |
| 02/16/1989 | DE3726309A1 Radar camouflage of aircraft antennas |
| 02/14/1989 | US4804970 Equiphase refractive antenna lens |
| 02/09/1989 | WO1989001246A1 Phase shifting element, antenna comprising phase shifting elements and method of steering an antenna |
| 01/31/1989 | US4801946 Grid antenna |
| 01/26/1989 | WO1989000773A1 A passive radar target |
| 01/26/1989 | WO1989000754A1 Process for manufacturing a material having predetermined dielectric, pyroelectric and/or magnetic properties and its use |
| 01/26/1989 | DE3802150A1 Verfahren zum herstellen eines bezueglich seiner dielektrischen, pyroelektrischen und/oder magnetischen eigenschaften vorgebbaren materials und dessen verwendung A process for the manufacture of a with respect to its dielectric, pyroelectric and / or magnetic properties of the material and its use predeterminable |
| 01/17/1989 | CA1249008A1 Electrically heatable reflective element |
| 01/11/1989 | EP0298306A2 Radar camouflage material |
| 01/10/1989 | US4797685 Offset shaped antenna reflector |
| 01/04/1989 | EP0298060A2 A reflector for parabolic antennaes |
| 01/03/1989 | US4796033 Hub and rim reflector |
| 12/29/1988 | WO1988010522A1 Hub and rim reflector |
| 12/29/1988 | WO1988010521A1 Collapsible receiving antenna |
| 12/22/1988 | DE3718319A1 Reflector |
| 12/20/1988 | US4792815 Reception system for satellite signals |