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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12/13/1988 | US4791432 Antenna and method for fabricating same |
12/07/1988 | EP0293877A2 Portable parabolic antenna apparatus |
12/07/1988 | EP0293429A1 Composite antenna reflector with polarized subreflector |
12/06/1988 | US4789868 Manufacture of parabolic antennas |
11/30/1988 | CN88212721U Metric wave tv dipole transmitting antenna with removable adjustable grid reflector |
11/29/1988 | CA1245759A1 Dual gridded reflector structure |
11/24/1988 | DE3816212A1 Receiving antenna |
11/23/1988 | EP0291523A1 Process and device for camouflaging power unit inlets |
11/22/1988 | US4786914 Meanderline polarization twister |
11/17/1988 | WO1988009066A1 Microwave lens and array antenna |
11/17/1988 | EP0290969A2 Unfoldable antenna with two reflecting surfaces |
11/17/1988 | EP0290729A2 Module for expandable truss structure and expandable truss structure employing said module |
11/15/1988 | US4785310 Frequency selective screen having sharp transition |
11/15/1988 | US4785301 Method for producing a radar reflector |
11/15/1988 | US4785266 Dielectric rod polarizer having wedge shape polarizing portions |
11/15/1988 | US4784899 Electroconductive nonwoven fabric-resin composite articles and method for production thereof |
11/09/1988 | EP0290124A2 Hybrid mesh and rf reflector embodying the mesh |
10/25/1988 | US4780726 Depolyable reflector |
10/25/1988 | US4780262 Removable flexible rubber boot mold lining |
10/25/1988 | CA1243773A1 Dichroic antenna structure |
10/20/1988 | DE3712079A1 Radar reflector |
10/19/1988 | EP0286716A2 An antenna system for exoatmospheric missiles |
09/20/1988 | US4772890 Multi-band planar antenna array |
09/13/1988 | US4771293 Dual reflector folding antenna |
09/13/1988 | US4770836 Method for producing components with accurate surfaces |
09/13/1988 | CA1242025A1 Structure and manufacture of radiation collectors |
09/06/1988 | US4769647 Unfoldable and refoldable antenna reflector |
08/24/1988 | CN87211213U Receiving parabola for communication satellite tv ground station |
08/23/1988 | US4766443 Satellite dish antenna apparatus |
08/16/1988 | US4764779 Electroconductive fibrous material |
08/10/1988 | EP0277189A1 Frequency selective screen having sharp transition. |
08/09/1988 | US4763133 Reflector for circular polarization antenna and process for the production thereof |
08/09/1988 | US4763127 Fiber under foil chaff coil |
08/02/1988 | US4761655 Transportable antenna for an earth station |
08/02/1988 | US4761055 Protective device for data memories |
07/26/1988 | CA1239749A1 Fiber-reinforced syntactic foam composites and method for forming same |
07/13/1988 | EP0274011A2 Subprojectile with a targeting means |
07/12/1988 | US4756943 Sandwich structural part |
07/07/1988 | DE3641944A1 Process for producing concave mirrors |
07/06/1988 | EP0181368B1 Fiber-reinforced syntactic foam composites and method of forming same |
07/05/1988 | US4755819 Reflector antenna and method of fabrication |
06/23/1988 | DE3642072A1 Radar antenna arrangement having a reduced echoing cross-section |
06/21/1988 | CA1238400A1 Trihedral radar reflector |
06/16/1988 | WO1988004480A1 Composite antenna reflector with polarized subreflector |
06/16/1988 | WO1988004479A1 Process and device for camouflaging power unit inlets |
06/16/1988 | DE3641289A1 Verfahren und vorrichtung zur radartarnung von triebwerkseinlaeufen Method and device for radar camouflage of triebwerkseinlaeufen |
06/14/1988 | US4751136 Metal foil laminated to porous dielectric through water-impermeable film |
06/08/1988 | EP0270294A2 Microwave reflector assembly |
06/07/1988 | US4750002 Antenna panel having adjustable supports to improve surface accuracy |
05/25/1988 | EP0268362A1 Heated dish antennas |
05/10/1988 | US4743919 Microwave frequency selective surface having fibrous ceramic body |
05/04/1988 | CN87105569A Selective screen with the characteristics of quick change and transition |
04/26/1988 | US4740056 Collapsible corner reflector |
04/26/1988 | CA1235799A1 Parabola, antenna and manufacturing method for same |
04/19/1988 | US4738746 Etching in engraved grooves; peeling excess material |
03/30/1988 | EP0261356A1 Method of manufacturing dichroic antenna structures |
03/30/1988 | EP0261257A2 Electroconductive fibrous material |
03/23/1988 | EP0120053B1 Method for adjusting and connecting cords |
03/22/1988 | US4733246 Plastic antenna structure having a laminated reflector |
03/22/1988 | US4733244 Polarization separating reflector, especially for microwave transmitter and receiver antennas |
03/22/1988 | US4733236 Space target with multi-spectral energy reflectivity |
03/22/1988 | CA1234416A1 Resistive loop angular filter |
03/15/1988 | US4731617 Apparatus and method for making paraboloidal surfaces |
03/02/1988 | EP0257657A2 Substrate for high-frequency circuit and process for making the same |
03/01/1988 | US4728961 Electromagnetic wave spatial filter with circular polarization and a Cassegrain antenna comprising such a filter |
03/01/1988 | US4728554 Fiber structure and method for obtaining tuned response to high frequency electromagnetic radiation |
02/25/1988 | WO1988001443A1 Reception system for satellite signals |
02/25/1988 | WO1988001442A1 Frequency selective screen having sharp transition |
02/16/1988 | US4725490 High magnetic permeability composites containing fibers with ferrite fill |
02/09/1988 | US4724436 Depolarizing radar corner reflector |
02/03/1988 | EP0255284A1 Radar reflector |
02/03/1988 | CN87208675U Antenna for receiving satellite signal |
02/02/1988 | US4723123 For landing aircraft |
01/26/1988 | CA1232060A1 Reflector for circular polarization antenna and process for the production thereof |
01/19/1988 | US4720713 Fiber ceramic antenna reflector |
01/19/1988 | CA1231798A1 Ethylene polymers and chromium catalysts |
01/14/1988 | DE3621699A1 Radar reflecting device for missiles |
01/13/1988 | EP0252247A1 Collapsible antenna reflector with a concave surface |
01/07/1988 | EP0251888A1 Low weight and low bulk microwave antenna |
01/07/1988 | EP0251292A1 Composite structure including the engraving of the metal layer |
12/30/1987 | CN87200892U Antenna made of inorganic gel materials |
12/12/1987 | CN86211074U Board type multi-focal-distance paraboloidal aerial for ground satellite station |
12/09/1987 | CN87103882A Production method for microwave antennas |
12/03/1987 | DE3714882A1 Herstellungsverfahren fuer eine mikrowellenantenne Manufacturing method for a microwave antenna |
12/01/1987 | US4710777 Dish antenna structure |
12/01/1987 | CA1229891A1 Monolithic polarizer grating |
11/24/1987 | US4709241 Satellite dish antenna frame |
11/24/1987 | US4709235 Low-drag, ram-air inflated, millimeter wave, passive radar decoy |
11/17/1987 | US4706921 Antenna post base support and method of installing same |
11/10/1987 | US4706094 Electro-optic beam scanner |
10/21/1987 | CN87200891U Antenna made of hard foamed resin |
10/20/1987 | US4701765 Structure for a dichroic antenna |
10/14/1987 | EP0241331A1 Process for making an electrically conductive pattern on the non-developable surface of an insulating substrate and device obtained |
10/13/1987 | US4700190 Missile decoy radar cross section enhancer |
10/06/1987 | US4698639 Circularly polarized leaky waveguide doppler antenna |
09/30/1987 | EP0238662A1 Optical device |
09/23/1987 | EP0237970A2 Electroconductive nonwoven fabric-resin composite articles and method for production thereof |
09/22/1987 | US4695841 Method for deceiving active electromagnetic detectors and corresponding decoys |
09/16/1987 | EP0237429A2 Controlled-phase reflector array, and antenna comprising such an array |
09/16/1987 | EP0236958A2 Removable retroreflector for reflecting electromagnetic rays |