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Class Information
Number: 343/862
Name: Communications: radio wave antennas > Antennas > With coupling network or impedance in the leadin > Impedance matching network > Including long line element
Description: Subject matter under the definition of ... in which at least one of the elements of the impedance matching network has distributed electrical parameters.










Sub-classes under this class:

Class Number Class Name Patents
343/864 Quarter-wave transformer 27
343/863 Tapered 11


Patents under this class:

Patent Number Title Of Patent Date Issued
8704714 Surface mount module embedded antenna Apr. 22, 2014
8674890 Wideband and multiband external antenna for portable transmitters Mar. 18, 2014
8576125 Planar wideband antenna Nov. 5, 2013
8462074 Planar antenna and wireless communication apparatus Jun. 11, 2013
8427337 Planar dipole antenna Apr. 23, 2013
8421682 Apparatus, methods and computer programs for wireless communication Apr. 16, 2013
8106847 Communication circuit, communication apparatus, impedance matching circuit and impedance matching circuit designing method Jan. 31, 2012
8026859 Horn antenna with integrated impedance matching network for improved operating frequency range Sep. 27, 2011
7808444 Two-way antenna connector Oct. 5, 2010
7245876 System and method for secure wireless connection Jul. 17, 2007
7088307 Antenna matching circuit, mobile communication device including antenna matching circuit, and dielectric antenna including antenna matching circuit Aug. 8, 2006
6970136 Antenna apparatus Nov. 29, 2005
6903697 Vehicle antenna and diversity receiving apparatus Jun. 7, 2005
6718157 Apparatus for commonly using antenna for call signal and television broadcasting signal in radio communication terminal Apr. 6, 2004
6661382 Antenna apparatus Dec. 9, 2003
6597318 Loop antenna and feed coupler for reduced interaction with tuning adjustments Jul. 22, 2003
6335664 Branch circuit and its designing method, waveguide-microstrip transition, and application to HF circuit, antenna and communication system Jan. 1, 2002
6204816 Radio frequency antenna Mar. 20, 2001
5977841 Noncontact RF connector Nov. 2, 1999
5635943 Transceiver having retractable antenna assembly Jun. 3, 1997
5565881 Balun apparatus including impedance transformer having transformation length Oct. 15, 1996
5467097 Telescoping antenna with dual impedance matching circuits Nov. 14, 1995
5392055 Radio antenna Feb. 21, 1995
5365244 Wideband notch radiator Nov. 15, 1994
5359335 Automobile antenna Oct. 25, 1994
5233360 Matching device for a microstrip antenna Aug. 3, 1993
5068670 Broadband microwave slot antennas, and antenna arrays including same Nov. 26, 1991
5049892 Pane antenna system having four terminal networks Sep. 17, 1991
4988961 Device for achieving minimal reflections in antenna coupling Jan. 29, 1991
4963879 Double skirt omnidirectional dipole antenna Oct. 16, 1990
4755345 Impedance matched, high-power, rf antenna for ion cyclotron resonance heating of a plasma Jul. 5, 1988
4736454 Integrated oscillator and microstrip antenna system Apr. 5, 1988
4521784 Ground-plane antenna with impedance matching Jun. 4, 1985
4439772 Inductor type half wave antenna Mar. 27, 1984
4438437 Dual mode blade antenna Mar. 20, 1984
3987453 Balanced exciter for wideband antenna element Oct. 19, 1976
3972049 Asymmetrically fed electric microstrip dipole antenna Jul. 27, 1976











 
 
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