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Class Information
Number: 343/860
Name: Communications: radio wave antennas > Antennas > With coupling network or impedance in the leadin > Impedance matching network
Description: Subject matter wherein the passive coupling network includes one or more impedance elements constructed or proportioned to substantially eliminate the reflected wave energy between the antenna and the receiver or signal energy source, caused by impedance differences.










Sub-classes under this class:

Class Number Class Name Patents
343/861 Adjustable 128
343/862 Including long line element 37


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8659496 Heat sink for a high power antenna Feb. 25, 2014
8649738 High-frequency amplifier and radio communication apparatus Feb. 11, 2014
8624795 Dielectrically loaded antenna Jan. 7, 2014
8618985 Patch antenna and rectenna using the same Dec. 31, 2013
8619001 Multi-antenna apparatus and mobile device Dec. 31, 2013
8614646 Adaptive tunable antennas for wireless devices Dec. 24, 2013
8614650 Tunable inverted F antenna Dec. 24, 2013
8610632 Adaptive tunable antennas for wireless devices Dec. 17, 2013
8599093 Wideband antenna for printed circuit boards Dec. 3, 2013
8593348 Distributed coupling antenna Nov. 26, 2013
8593368 Multi-band antenna and electronic apparatus having the same Nov. 26, 2013
8594584 Method and apparatus for tuning a communication device Nov. 26, 2013
8581793 RFID antenna with asymmetrical structure and method of making same Nov. 12, 2013
8581797 Compact dipole adapter for whip antenna Nov. 12, 2013
8577306 Wireless communications chip with multi-port distributed antenna Nov. 5, 2013
8570236 Antenna matching circuit control device Oct. 29, 2013
8570235 Systems and methods for complementary metal-oxide-semiconductor (CMOS) differential antenna switches using multi-section impedance transformations Oct. 29, 2013
8570153 Metallic cover having IC tag, and metallic container Oct. 29, 2013
8565695 Detection of the value of an impedance of a radiofrequency system Oct. 22, 2013
8542157 Antenna module Sep. 24, 2013
8543176 Method and system for optimizing impedance match in a mobile communication device Sep. 24, 2013
8537057 Mobile terminal with two antennas for reducing the RF radiation exposure of the user Sep. 17, 2013
8531345 Antenna device and radio communication terminal Sep. 10, 2013
8531346 Wireless IC device Sep. 10, 2013
8525736 Antenna device Sep. 3, 2013
8525733 Low-profile wide-bandwidth radio frequency antenna Sep. 3, 2013
8502748 Three-dimensional dual-band antenna Aug. 6, 2013
8498586 On-package transmit/receive switch and antenna Jul. 30, 2013
8493270 Wireless device Jul. 23, 2013
8482676 Differential antenna and associated control system applied to digital TV Jul. 9, 2013
8462065 Antenna apparatus and communication apparatus Jun. 11, 2013
8457697 Antenna switching arrangement Jun. 4, 2013
8447255 Variable impedance matching network and method for the same May. 21, 2013
8436783 Dielectrically-loaded antenna May. 7, 2013
8427386 Method and circuit for transmitting and receiving radio waves with a single oscillatory circuit antenna Apr. 23, 2013
8427387 Broadband spiral transmission line phase shifting power splitter Apr. 23, 2013
8416137 Low-profile wide-bandwidth radio frequency antenna Apr. 9, 2013
8400369 Multiband antenna and radio communication terminal Mar. 19, 2013
8384606 Antenna device and communication terminal Feb. 26, 2013
8373607 Tunable antenna structure having a variable capacitor Feb. 12, 2013
8374561 Non-foster impedance power amplifier Feb. 12, 2013
8346181 Wireless communications chip with multi-port distributed antenna Jan. 1, 2013
8339328 Reconfigurable multi-band antenna and method for operation of a reconfigurable multi-band antenna Dec. 25, 2012
8330667 Portable wireless device Dec. 11, 2012
8314702 Methods and systems for activating a proximity information device Nov. 20, 2012
8306481 Single pole multi throw switch Nov. 6, 2012
8294632 Antenna interface circuits including tunable impedance matching networks, electronic devices incorporating the same, and methods of tuning antenna interface circuits Oct. 23, 2012
8294631 Antenna with a bent portion Oct. 23, 2012
8294619 Unsymmetrical dual band antenna Oct. 23, 2012
8284116 Antenna apparatus for internal impedance matching Oct. 9, 2012

1 2 3 4 5 6 7










 
 
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