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