Patents
Patents for H01Q 17 - Devices for absorbing waves radiated from an aerial; Combinations of such devices with active aerial elements or systems (2,636)
03/1999
03/02/1999US5875575 Laser license plate cover
02/1999
02/24/1999EP0897675A1 Energy conversion composition
02/18/1999DE19732569A1 Quasi-optical harmonic wave filter for HF signal generation
02/17/1999EP0896749A1 Microwave antenna array for a motor vehicle radar system
02/16/1999US5872534 High frequency broadband absorption structures
02/04/1999WO1999005752A2 Radar absorber and method of manufacture
02/03/1999EP0895449A2 Electrically conductive gasket and method of manuacturing the same
02/02/1999US5866273 Corrosion resistant RAM powder
01/1999
01/27/1999CN2305763Y Full direction active TV aerial
01/21/1999WO1999003167A1 Hand-portable telephone with radiation absorbing device
01/21/1999DE19730065A1 Electrically conductive screening fabric has a continuous copper layer with insulating layers
01/20/1999CN2305004Y Dual antenna connector
01/13/1999EP0890988A2 Electrical circuit assembly mounted in a housing
01/13/1999CN1205107A Compound magnet material and electromagnetic interference suppressor
01/11/1999CA2240751A1 Electrical circuit configuration arranged in a casing
01/06/1999CN1204230A Protective cover for hand-held telephone set and its making method
01/05/1999US5855988 Electromagnetic wave absorbing shielding material
12/1998
12/30/1998EP0888040A2 Structure for shielding an electronic circuit from radio waves
12/29/1998US5853889 Materials for electromagnetic wave absorption panels
12/16/1998EP0884799A2 Semiconductor module having antenna element therein
12/16/1998EP0884739A1 Compound magnetic material and electromagnetic interference suppressor
12/09/1998CN1201274A Two-reflector microwave anttena
12/08/1998US5847316 Electromagnetic shielding body and electromagnetic shielding structure utilizing same
12/02/1998CN1200866A Radio communications device and its cover
12/01/1998US5844518 Thermoplastic syntactic foam waffle absorber
12/01/1998US5844417 Simulated infinite ground screen in an RF test chamber
11/1998
11/25/1998EP0705487B1 Arrangement for absorbing electromagnetic waves and process for producing the same
11/25/1998CN1200192A Composite magnetic material and electromagnetic interference suppressing material
11/18/1998CN1199495A Composite magnetic material, method for mfg. same and electromagnetic interference suppressing material
11/18/1998CN1199494A EMI preventive part and active device with same
11/10/1998US5833770 High frequency soft magnetic alloy and plane magnetic element, antenna and wave absorber comprising the same
11/04/1998EP0875957A2 Electromagnetic wave absorber
10/1998
10/27/1998US5827998 Electromagnetic shielding structure having radio wave-absorbing material
10/27/1998US5827445 Composite magnetic article for electromagnetic interference suppressor
10/21/1998CN2295274Y All-direction full-channel active television receiving antenna
10/20/1998US5826201 Antenna microwave shield for cellular telephone
10/14/1998EP0871241A2 Lens antenna
10/14/1998EP0871240A2 Electromagnetic wave absorber
10/14/1998EP0871183A1 Composite magnetic material, method for manufacturing the same, and electromagnetic interference suppressing material
10/14/1998CN2294526Y Anti-radiation concealed shielding device for Nokia digital mobile telephone
10/08/1998WO1998044772A1 Radio wave absorbing panel
10/08/1998DE19714299A1 Coating material for emitting surfaces
10/06/1998US5817583 Radar attenuating textiles
10/06/1998US5817250 Magnetic ferrite and dielectric oxides
10/01/1998DE19809808A1 Shielding screen for shielding e.g. conductors
09/1998
09/23/1998EP0866475A1 Composite magnetic material and electromagnetic interference suppressing material
09/23/1998EP0746260A4 Protection of living systems from electromagnetic fields
09/22/1998US5812080 Broad-band radio wave absorber
09/03/1998WO1998038697A1 Housing with radar-absorbent properties
09/03/1998WO1998038518A1 Plastic body, in particular flat element, for limiting hf reflection
09/03/1998DE19707585A1 Gehäuse mit radarabsorbierenden Eigenschaften Housing with radar-absorbing properties
08/1998
08/19/1998EP0859427A1 Dual-reflector microwave antenna
08/19/1998EP0859378A1 Emi preventive part and active device with the same
08/13/1998WO1998035403A1 Microwave antenna array for a motor vehicle radar system
08/13/1998DE19755607A1 Mikrowellen-Antennenanordnung für ein Kraftfahrzeug-Radarsystem Microwave antenna arrangement for a motor vehicle radar system
08/12/1998EP0858125A2 Radio wave absorbent
08/06/1998DE19753469A1 Arranging material on walls of HF test chamber which absorbs HF energy
07/1998
07/28/1998US5787340 Radiation shielding apparatus for communication device
07/28/1998US5786785 Electromagnetic radiation absorptive coating composition containing metal coated microspheres
07/16/1998WO1998031072A1 Electromagnetic wave absorption panels and materials for same
07/16/1998DE19748859A1 Low frequency absorption method for anechoic HF test chamber
07/02/1998WO1998020577A3 A radio telephone with high antenna efficiency
06/1998
06/23/1998US5771013 An halosilane is mixed in a mixture of siloxane copolymer containing silanediol and silanol sites and methylhydrogen silanediol with silanol end groups and iron carbonyl with a solvent, heating to remove solvent; storage stabilitystability
06/23/1998US5770304 Wide bandwidth electromagnetic wave absorbing material
06/18/1998DE19733627C1 Seal extruded by xyz robot for electromagnetic screening and physical sealing of electronics cabinets
06/10/1998DE19650420A1 Removable partial shielding arrangement for hand-carried transceiver
06/09/1998US5764181 A low viscosity curable endcapped polysiloxane blend use as protective coatings; heat resistance, storage stability
05/1998
05/28/1998DE19648544A1 Electromagnetic radiation screening arrangement e.g. for wireless telecommunication services
05/20/1998EP0801839B1 Arrangements for reducing the electromagnetic field created by power electronic equipment
05/14/1998WO1998020577A2 A radio telephone with high antenna efficiency
05/13/1998EP0758479B1 Protective device for shielding people from high-frequency electromagnetic fields
05/12/1998US5749959 Dark coating with low solar infrared absorbing properties
05/05/1998US5748151 Low radar cross section (RCS) high gain lens antenna
04/1998
04/09/1998WO1998014962A1 Compound magnetic material and electromagnetic interference suppressor
03/1998
03/31/1998US5732904 Device for signature reduction
03/25/1998EP0831074A2 A ceramic composition for absorbing electromagnetic wave and a method for manufacturing the same
03/25/1998CN1176949A Ceramic composition for absorbing electromagnetic wave and method for mfg. the same
03/24/1998US5731777 Radio-frequency absorbing fin blanket
03/17/1998US5728346 Fabrication of chiral composite material
03/12/1998WO1998010440A1 Composite magnetic material and electromagnetic interference suppressing material
03/12/1998WO1998010439A1 Composite magnetic material, method for manufacturing the same, and electromagnetic interference suppressing material
03/11/1998EP0828313A2 Electromagnetic-wave absorber
03/03/1998US5724052 Device for reducing the radome effect with a surface-radiating wideband antenna and reducing the radar cross section of the assembly
02/1998
02/26/1998WO1998008234A1 Emi preventive part and active device with the same
02/24/1998US5721551 Apparatus for attenuating traveling wave reflections from surfaces
02/18/1998CN1173949A Antenna for a portable radio communication device
02/10/1998US5717397 Low observable shape conversion for aircraft weaponry
02/04/1998EP0822610A2 Reflector antenna
01/1998
01/28/1998EP0821432A2 Wave absorber and method for production thereof
01/20/1998US5710564 System for absorbing electromagnetic waves and method of manufacturing this system
01/13/1998US5708435 Multilayer wave absorber
01/07/1998EP0646033B1 Device for protection against the biological effects of electromagnetic non-ionising radiations, particularly those emitted by vdu equipment
01/02/1998DE19625066A1 Electromagnetic radiation protection foil
12/1997
12/11/1997DE19623122A1 Partial screening for antenna of portable telephone
11/1997
11/27/1997WO1997044857A1 Transmission structure with expanded absorption bands
11/26/1997CN1166092A Radio-frequency hearing aid protector for wireless communications products
11/20/1997WO1997042844A1 Energy conversion composition
11/18/1997US5688348 Anechoic chamber absorber and method
11/11/1997US5686178 Radar chaff, metal salt
11/05/1997EP0805562A2 Radio-frequency hearing aid protector for wireless communications products
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