Patents
Patents for H01Q 15 - Devices for reflection, refraction, diffraction, or polarisation of waves radiated from an aerial, e.g. quasi-optical devices (7,888)
12/1988
12/13/1988US4791432 Antenna and method for fabricating same
12/07/1988EP0293877A2 Portable parabolic antenna apparatus
12/07/1988EP0293429A1 Composite antenna reflector with polarized subreflector
12/06/1988US4789868 Manufacture of parabolic antennas
11/1988
11/30/1988CN88212721U Metric wave tv dipole transmitting antenna with removable adjustable grid reflector
11/29/1988CA1245759A1 Dual gridded reflector structure
11/24/1988DE3816212A1 Receiving antenna
11/23/1988EP0291523A1 Process and device for camouflaging power unit inlets
11/22/1988US4786914 Meanderline polarization twister
11/17/1988WO1988009066A1 Microwave lens and array antenna
11/17/1988EP0290969A2 Unfoldable antenna with two reflecting surfaces
11/17/1988EP0290729A2 Module for expandable truss structure and expandable truss structure employing said module
11/15/1988US4785310 Frequency selective screen having sharp transition
11/15/1988US4785301 Method for producing a radar reflector
11/15/1988US4785266 Dielectric rod polarizer having wedge shape polarizing portions
11/15/1988US4784899 Electroconductive nonwoven fabric-resin composite articles and method for production thereof
11/09/1988EP0290124A2 Hybrid mesh and rf reflector embodying the mesh
10/1988
10/25/1988US4780726 Depolyable reflector
10/25/1988US4780262 Removable flexible rubber boot mold lining
10/25/1988CA1243773A1 Dichroic antenna structure
10/20/1988DE3712079A1 Radar reflector
10/19/1988EP0286716A2 An antenna system for exoatmospheric missiles
09/1988
09/20/1988US4772890 Multi-band planar antenna array
09/13/1988US4771293 Dual reflector folding antenna
09/13/1988US4770836 Method for producing components with accurate surfaces
09/13/1988CA1242025A1 Structure and manufacture of radiation collectors
09/06/1988US4769647 Unfoldable and refoldable antenna reflector
08/1988
08/24/1988CN87211213U Receiving parabola for communication satellite tv ground station
08/23/1988US4766443 Satellite dish antenna apparatus
08/16/1988US4764779 Electroconductive fibrous material
08/10/1988EP0277189A1 Frequency selective screen having sharp transition.
08/09/1988US4763133 Reflector for circular polarization antenna and process for the production thereof
08/09/1988US4763127 Fiber under foil chaff coil
08/02/1988US4761655 Transportable antenna for an earth station
08/02/1988US4761055 Protective device for data memories
07/1988
07/26/1988CA1239749A1 Fiber-reinforced syntactic foam composites and method for forming same
07/13/1988EP0274011A2 Subprojectile with a targeting means
07/12/1988US4756943 Sandwich structural part
07/07/1988DE3641944A1 Process for producing concave mirrors
07/06/1988EP0181368B1 Fiber-reinforced syntactic foam composites and method of forming same
07/05/1988US4755819 Reflector antenna and method of fabrication
06/1988
06/23/1988DE3642072A1 Radar antenna arrangement having a reduced echoing cross-section
06/21/1988CA1238400A1 Trihedral radar reflector
06/16/1988WO1988004480A1 Composite antenna reflector with polarized subreflector
06/16/1988WO1988004479A1 Process and device for camouflaging power unit inlets
06/16/1988DE3641289A1 Verfahren und vorrichtung zur radartarnung von triebwerkseinlaeufen Method and device for radar camouflage of triebwerkseinlaeufen
06/14/1988US4751136 Metal foil laminated to porous dielectric through water-impermeable film
06/08/1988EP0270294A2 Microwave reflector assembly
06/07/1988US4750002 Antenna panel having adjustable supports to improve surface accuracy
05/1988
05/25/1988EP0268362A1 Heated dish antennas
05/10/1988US4743919 Microwave frequency selective surface having fibrous ceramic body
05/04/1988CN87105569A Selective screen with the characteristics of quick change and transition
04/1988
04/26/1988US4740056 Collapsible corner reflector
04/26/1988CA1235799A1 Parabola, antenna and manufacturing method for same
04/19/1988US4738746 Etching in engraved grooves; peeling excess material
03/1988
03/30/1988EP0261356A1 Method of manufacturing dichroic antenna structures
03/30/1988EP0261257A2 Electroconductive fibrous material
03/23/1988EP0120053B1 Method for adjusting and connecting cords
03/22/1988US4733246 Plastic antenna structure having a laminated reflector
03/22/1988US4733244 Polarization separating reflector, especially for microwave transmitter and receiver antennas
03/22/1988US4733236 Space target with multi-spectral energy reflectivity
03/22/1988CA1234416A1 Resistive loop angular filter
03/15/1988US4731617 Apparatus and method for making paraboloidal surfaces
03/02/1988EP0257657A2 Substrate for high-frequency circuit and process for making the same
03/01/1988US4728961 Electromagnetic wave spatial filter with circular polarization and a Cassegrain antenna comprising such a filter
03/01/1988US4728554 Fiber structure and method for obtaining tuned response to high frequency electromagnetic radiation
02/1988
02/25/1988WO1988001443A1 Reception system for satellite signals
02/25/1988WO1988001442A1 Frequency selective screen having sharp transition
02/16/1988US4725490 High magnetic permeability composites containing fibers with ferrite fill
02/09/1988US4724436 Depolarizing radar corner reflector
02/03/1988EP0255284A1 Radar reflector
02/03/1988CN87208675U Antenna for receiving satellite signal
02/02/1988US4723123 For landing aircraft
01/1988
01/26/1988CA1232060A1 Reflector for circular polarization antenna and process for the production thereof
01/19/1988US4720713 Fiber ceramic antenna reflector
01/19/1988CA1231798A1 Ethylene polymers and chromium catalysts
01/14/1988DE3621699A1 Radar reflecting device for missiles
01/13/1988EP0252247A1 Collapsible antenna reflector with a concave surface
01/07/1988EP0251888A1 Low weight and low bulk microwave antenna
01/07/1988EP0251292A1 Composite structure including the engraving of the metal layer
12/1987
12/30/1987CN87200892U Antenna made of inorganic gel materials
12/12/1987CN86211074U Board type multi-focal-distance paraboloidal aerial for ground satellite station
12/09/1987CN87103882A Production method for microwave antennas
12/03/1987DE3714882A1 Herstellungsverfahren fuer eine mikrowellenantenne Manufacturing method for a microwave antenna
12/01/1987US4710777 Dish antenna structure
12/01/1987CA1229891A1 Monolithic polarizer grating
11/1987
11/24/1987US4709241 Satellite dish antenna frame
11/24/1987US4709235 Low-drag, ram-air inflated, millimeter wave, passive radar decoy
11/17/1987US4706921 Antenna post base support and method of installing same
11/10/1987US4706094 Electro-optic beam scanner
10/1987
10/21/1987CN87200891U Antenna made of hard foamed resin
10/20/1987US4701765 Structure for a dichroic antenna
10/14/1987EP0241331A1 Process for making an electrically conductive pattern on the non-developable surface of an insulating substrate and device obtained
10/13/1987US4700190 Missile decoy radar cross section enhancer
10/06/1987US4698639 Circularly polarized leaky waveguide doppler antenna
09/1987
09/30/1987EP0238662A1 Optical device
09/23/1987EP0237970A2 Electroconductive nonwoven fabric-resin composite articles and method for production thereof
09/22/1987US4695841 Method for deceiving active electromagnetic detectors and corresponding decoys
09/16/1987EP0237429A2 Controlled-phase reflector array, and antenna comprising such an array
09/16/1987EP0236958A2 Removable retroreflector for reflecting electromagnetic rays
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