Patents
Sitemap › H01 - Basic electric elements › H01Q - Aerials › H01Q 1 - Details of, or arrangements associated with, aerials
Patents for H01Q 1 - Details of, or arrangements associated with, aerials (75,694)
10/1991
10/22/1991US5059971 Cordless antenna
10/17/1991WO1991015884A1 Improved drive system for rf-excited gas lasers
10/17/1991WO1991015877A1 Antenna device
10/17/1991WO1991015621A1 Antenna structure and method of making same
10/16/1991EP0451623A1 Antenna switch
10/16/1991CN1055448A Microwave antenna unit
10/15/1991US5057849 Rod antenna for multi-band television reception
10/15/1991US5057847 Rf connector for connecting a mobile radiotelephone to a rack
10/15/1991US5057844 Insulated underground antenna and method for utilizing same
10/15/1991US5057797 System for transmitting broadband data and/or instructions between an element moving in one plane and a control station
10/15/1991CA1290847C Vehicle antenna with shiftable gain patterns
10/10/1991DE4009934A1 Mounting device for vehicle antenna on body work - uses circular groove on outside to fix to bodywork in conjunction with flexible seal and internal hard plastics
10/09/1991EP0450881A2 Microstrip antennas
10/09/1991EP0450191A2 Transducer arrangement
10/08/1991US5056153 Mobile electric accessory apparatus
10/08/1991CA1290448C Motor vehicle window pane
10/08/1991CA1290430C Technique for roll stabilization and partitioning of phased array antenna receiving apertures
10/02/1991EP0449371A1 Collapsible sonobuoy floatation device
10/02/1991EP0449158A2 Fine pointing system of a reflector type focussing antenna
10/02/1991EP0449107A2 Microwave antenna unit
10/01/1991US5053786 Broadband directional antenna
10/01/1991US5052645 Global positioning pole
09/1991
09/30/1991CA2039097A1 Collapsible sonobuoy floatation device
09/26/1991DE4009049A1 Adjustment for antenna of aircraft system - has screw adjustment of sub-reflector relative to main reflector
09/25/1991EP0447614A2 Antenna duplexer
09/25/1991EP0447390A1 Transparent polycrystalline body with high ultraviolet transmittance, process for making, and applications thereof.
09/25/1991EP0295257B1 Motor vehicle aerial system
09/24/1991US5052020 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
09/19/1991DE4008505A1 Mobile antenna for satellite communication system - uses etching process on substrate with two part assembly
09/18/1991EP0447182A1 Drive control apparatus for an electrically-driven type extensible/retractable antenna
09/18/1991EP0446684A1 Motor vehicle window pane in the form of a double glazing unit with antenna elements
09/17/1991US5050236 Radio frequency field strength enhancer
09/17/1991US5049896 Antenna mount
09/17/1991US5049894 Launch support for three-layer radar membrane
09/17/1991US5049892 Pane antenna system having four terminal networks
09/17/1991US5049891 Radome-antenna installation with rotating equipment rack
09/17/1991US5048641 Van-mounted ladder assembly with concealed radio antennas
09/12/1991DE4019268A1 Vehicle double-glazing unit - including AM antenna element and combined heater and antenna element
09/11/1991EP0446050A2 Signal transmission/reception switching apparatus
09/11/1991EP0445694A1 Active printed circuit antenna system having high efficiency for a scanning radar for operation in space
09/11/1991CN2084664U 自动伸缩天线 Automatic retractable antenna
09/10/1991US5048118 Combination dual loop antenna and bezel with detachable lens cap
09/10/1991US5048116 Signal routing system
09/10/1991US5047787 Coupling cancellation for antenna arrays
09/10/1991US5047674 Gallium arsenide antenna switch having voltage multiplier bias circuit
09/10/1991CA1288862C Apparatus for tuning the antenna of a miniature personal communications device
09/05/1991DE4106250A1 Polarisation independent dipole aerial array - has number of identical aerial units symmetrically arranged in two dimensional array each unit with dipole element
09/05/1991DE4006353A1 Radomes with sandwich construction - having fibre composite outer layers and core of plastics with embedded filler bodies of metal, glass, ceramic etc.
09/04/1991EP0445010A1 Geostationary observation satellite with liquid propellant apogee maneuvering system and hollow antennae
09/04/1991EP0444834A2 In furnace- level meter and antenna therefor
09/04/1991EP0444679A2 Mobile antenna
09/04/1991EP0444416A1 Motor vehicle-mounted radio wave receiving GPS apparatus
09/04/1991EP0444052A1 Integrated data transmission computer and system
09/04/1991CN1054318A In-furnace level meter and antenna therefor
09/03/1991US5045862 Dual polarization microstrip array antenna
09/03/1991CA1288510C Circular microstrip vehicular rf antenna
09/03/1991CA1288220C Waveguide hanger
08/1991
08/28/1991EP0443491A1 Wrist watch type receiver
08/28/1991EP0443172A1 Vehicle antenna
08/28/1991EP0443171A1 Vehicle antenna
08/27/1991US5043739 High frequency rectenna
08/27/1991US5043721 Paging accessory for portable information/computing devices
08/27/1991CA2037008A1 Geostationary earth observation satellite incorporating liquid propellant apogee maneuver system and hollow antennas
08/27/1991CA2036779A1 In-furnace level meter and antenna therefor
08/22/1991WO1991012173A1 Electromagnetic wave attenuating and deicing structure
08/21/1991EP0408588A4 Inductive element and method of manufacture
08/21/1991CA2036097A1 Magnetic antenna base
08/20/1991US5041842 Helical base station antenna with support
08/20/1991US5041839 Electromagnetic radiation sensors
08/20/1991US5041838 Cellular telephone antenna
08/20/1991US5040763 Golf cart umbrella holder
08/20/1991CA1287916C Near-isotropic low-profile microstrip radiator especially suited for use as a mobile vehicle antenna
08/13/1991US5039992 High temperature skin antenna
08/13/1991US5039056 Flagpole holder
08/13/1991CA1287668C Device for protecting a mobile radar antenna against lightning
08/08/1991WO1991011830A1 Antenna combination
08/08/1991DE4008717C1 Climbing section monitor for belt conveyor - uses antenna arrangement on pliable material mat arranged above conveyor at approach side
08/08/1991DE4003385A1 Road vehicle aerial system
08/08/1991DE4003057A1 Vehicular radar detector integrated into rear-view mirror - is metallised in segments on rear surface for transmission of microwaves and reception of echoes
08/08/1991DE4002899A1 Roof incorporated vehicle aerial - has coaxial cable passing through base of cup-shaped element below ring shaped gap in roof
08/08/1991DE3938739A1 Automobile antenna - providing circular horizontal radiation diagram and using half wavelength slits in T or L configuration
08/07/1991EP0440378A2 Radar antenna mount
08/07/1991EP0439724A2 Autonomous radio-controlled clock
08/07/1991EP0439677A2 Vehicle antenna comprising a conductrice wall with a circular slot
08/07/1991CN1053713A Electromechanically-integrated program extendible omnibearing wide-band antenna
08/06/1991USH956 Waveguide fed spiral antenna
08/06/1991US5038405 Tunable antenna apparatus and method for use with superheterodyne receivers
08/06/1991CA1287399C Antenna orientation adjusting device for earth station
08/01/1991DE4002253A1 Number plate aerial for decimetre range - has ring emitters located, in space behind plate with cable loop connection
07/1991
07/25/1991WO1991011065A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
07/25/1991CA2074169A1 Method of and apparatus for controlling modulation of digital signals in frequency modulated transmissions
07/24/1991EP0438247A1 Antenna apparatus for a motor vehicle
07/23/1991US5034753 Acoustically coupled antenna
07/23/1991US5034751 Airborne surveillance platform
07/17/1991EP0437123A2 Structure for supporting a directional apparatus mounted at the top of a mast
07/16/1991US5032846 Selectively positionable antenna mounting
07/11/1991DE4000381A1 Slot antenna for car - uses integrated slot in bodywork sealed with plastics material
07/10/1991EP0436406A2 Automobile antenna
07/09/1991US5030966 Antenna for a portable transceiver
07/09/1991US5030964 Telescopic antennas for use in vehicles
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