Patents
Patents for H01Q 7 - Loop aerials with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop (7,833)
05/1998
05/26/1998US5757328 Windowpane antenna for vehicles
05/26/1998US5757326 Slot antenna device and wireless apparatus employing the antenna device
05/14/1998WO1998020626A1 Aerial arrays for inductive communication systems
05/13/1998CN1181845A Antenna system, in particular an antenna system for traffic communications systems
05/12/1998US5751255 Electrically small receiving antennas
05/12/1998US5751252 Method and antenna for providing an omnidirectional pattern
05/07/1998WO1998019361A1 Armoured magnetic field antenna in printed circuit
05/07/1998CA2270197A1 Armoured magnetic field antenna in printed circuit
05/06/1998EP0839396A1 Antenna, method of manufacturing antenna, and electronic apparatus equipped with antenna
05/06/1998EP0780027B1 Antenna coil
04/1998
04/30/1998WO1998018017A1 Magnetic crossed-loop antenna
04/29/1998EP0838839A2 Plasma processing apparatus
04/09/1998WO1998014923A1 Omnidirectional passive electrical marker for underground use
04/08/1998CN1178407A Power transmission system, IC card and information communication system using IC card
03/1998
03/31/1998US5734262 Matrix of switched antenna elements having a conductor pattern supported on individual insulators for measuring electromagnetic radiation
03/26/1998WO1998012773A1 Antenna arrangement which can be tuned capacitively
03/26/1998DE19638597A1 Antennenanordnung Antenna array
03/25/1998EP0830711A1 Toroidal antenna
03/25/1998EP0830710A1 Contrawound antenna
03/18/1998EP0829940A2 Power transmission system, IC card and information communication system using IC card
03/18/1998EP0829917A1 Antenna device
03/18/1998EP0829108A1 Eas system antenna configuration for providing improved interrogation field distribution
03/11/1998CN1175802A Loop antenna
03/05/1998DE19634691A1 Heating system with radio remote control receiver
02/1998
02/26/1998WO1998008115A1 Surface penetrating object detection system
02/25/1998EP0825674A1 Single-wire spiral antenna
02/11/1998EP0823058A1 Method and apparatus for eliminating mutual inductance effects in resonant coil assemblies
02/05/1998WO1998005088A1 Magnetic field antenna and method for field cancellation
02/03/1998US5714965 Active reception antenna with coplanar feeder
01/1998
01/29/1998WO1998003938A1 Transponder
01/28/1998EP0821430A2 Loop antenna
01/28/1998EP0820646A1 Antenna system, in particular an antenna system for traffic communications systems
01/28/1998EP0677210A4 Transmit and receive antenna having angled crossover elements.
01/27/1998US5711246 System for identifying livestock and other individuals
01/22/1998DE19628802A1 Transponder Transponder
01/21/1998CN1170971A Loop antenna
01/20/1998US5710987 Receiver having concealed external antenna
01/20/1998US5710458 Card like semiconductor device
01/08/1998DE19624939A1 Parallel strip waveguide coupling for loop antenna
01/07/1998EP0817312A2 Antenna apparatus
01/07/1998EP0815613A1 Dual frequency antenna with integral diplexer
01/07/1998EP0814980A1 Anti-theft system for a vehicle
12/1997
12/31/1997CN1169095A Antennas and their making methods and electronic devices or timepieces with same antennas
12/31/1997CN1169042A Antenna apparatus
12/24/1997WO1997049142A1 Circular-polarisation two-way antenna
12/23/1997CA2086149C Built-in chip transponder with antenna coil
12/16/1997US5699048 Omnidirectional passive electrical marker for underground use
12/11/1997DE19622387A1 Transponder for contactless extraction of information
12/10/1997EP0812030A1 Chip Antenna
12/09/1997US5697076 Suspended carrier modulation of high-Q transmitters
12/02/1997US5694139 Short-distance communication antenna and methods of manufacturing and using the short-distance communication antenna
12/02/1997US5694134 Incorporating continuously variable phase delay transmission lines which provide for steering antenna beam
11/1997
11/27/1997DE19621289A1 Chip-card manufacturing method
11/26/1997EP0808518A1 Television antennas
11/25/1997US5691731 Closed slot antenna having outer and inner magnetic loops
11/20/1997WO1997043798A1 Antenna, method of manufacturing antenna, and electronic apparatus equipped with antenna
11/13/1997DE19618180A1 Planar miniature emitter especially for ultrahigh frequency waves
11/12/1997EP0806808A2 On- vehicle windowpane antenna apparatus
11/12/1997EP0806061A1 Portable communication device
11/05/1997EP0805505A2 Coil construction
11/05/1997CN2266802Y 高增益全向天线 High-gain omnidirectional antenna
10/1997
10/28/1997US5682143 Radio frequency identification tag
10/22/1997EP0802637A1 Communication device
10/22/1997EP0771478A4 Attenuator
10/22/1997CN1162850A All direction horizontal-polarized band antenna
10/21/1997US5680048 Mine detecting device having a housing containing metal detector coils and an antenna
10/16/1997WO1997038404A1 Electronic article surveillance system
10/16/1997DE19613491A1 Transponder watch e.g. for use with electronic access control system
10/15/1997EP0801472A1 Radio communication system between a vehicle and a roadside station
10/08/1997EP0800229A2 Chip Antenna and method of making same
10/08/1997CN1161760A Antenna coil
10/01/1997CN2263829Y Magnetic loop aerial for mobile telephone
09/1997
09/30/1997US5673054 Antenna and miniature portable wireless transceiver
09/24/1997EP0797268A2 Antenna apparatus
09/24/1997CN2263405Y Loop aerial for mobile telephone
09/12/1997WO1997033341A1 Single-wire spiral antenna
09/04/1997WO1997032360A1 Combination satellite and vhf/uhf receiving antenna
09/04/1997WO1997032359A1 Folded bow-tie antenna
09/04/1997WO1997032353A1 Orthogonal switched antenna system
09/02/1997US5663738 Antenna device
08/1997
08/28/1997WO1997031404A1 Antenna for radio communication device
08/28/1997DE19707522A1 Soft magnetic alloy having high magnetic permeability
08/28/1997DE19610289A1 Transmission coil e.g. for contactless transponder system of motor vehicle anti-theft device
08/28/1997DE19607092A1 Antenna coil for high reliability motor vehicle systems
08/27/1997EP0791233A1 Transmit and receive loop antenna
08/27/1997CN1158014A Receiving apparatus and transmitting apparatus in thin form
08/26/1997US5661402 Sealed modular downhole antenna
08/20/1997EP0790669A1 Flat plate TV antenna
08/20/1997EP0790667A1 Method for realisation of a portable object with a coil antenna
08/19/1997US5659325 Low impedance loop antenna and drive circuitry
08/16/1997CA2195791A1 Flat plate tv antenna
08/13/1997EP0789474A2 A hands-free arrangement for mobile communication device
08/13/1997EP0789420A1 Chip antenna
08/13/1997CN1157061A Method and antenna for providing omnidirectional pattern
08/07/1997WO1997028609A1 Loop antenna with reduced electrical field sensitivity
08/07/1997DE19610284A1 Transponder antenna coil design
08/07/1997DE19603366A1 High frequency signal transmitting device
08/07/1997CA2238688A1 Loop antenna with reduced electrical field sensitivity
08/05/1997US5654723 Contrawound antenna
07/1997
07/31/1997WO1997027645A1 Low frequency electromagnetic communication system and antenna therefor
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