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Class Information
Number: 333/129
Name: Wave transmission lines and networks > Plural channel systems > Having branched circuits > With impedance matching > For providing frequency separation
Description: Subject matter wherein the branched transmission lines provide a different frequency or band of frequencies in each of the two or more transmission lines.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8674786 Radio communication apparatus Mar. 18, 2014
8558641 High-frequency module Oct. 15, 2013
8559620 Communications circuit for reducing crosstalk Oct. 15, 2013
8552816 Multiband simultaneous transmission and reception front end architecture Oct. 8, 2013
8536957 High-frequency circuit module having a duplexer disposed between specified module integrated circuits Sep. 17, 2013
8531252 Antenna duplexer and communication apparatus employing the same Sep. 10, 2013
8525616 Antenna feed network to produce both linear and circular polarizations Sep. 3, 2013
8487714 Duplexer module Jul. 16, 2013
8432237 Output circuit with integrated impedance matching, power combining and filtering for power amplifiers and other circuits Apr. 30, 2013
8421554 Filtering device for filtering RF signals and method for filtering RF signals Apr. 16, 2013
8416034 Signal splitting device and wireless communication device using the same Apr. 9, 2013
8405471 Multiplexed bi-directional circulator Mar. 26, 2013
8390396 Duplexer module Mar. 5, 2013
8378760 Duplexer, communication module, and communication device Feb. 19, 2013
8373520 Power coupler for industrial high-frequency generator Feb. 12, 2013
8374566 Integrated wideband RF tracking filter for RF front end with parallel band switched tuned amplifiers Feb. 12, 2013
8368485 Radio frequency combiners/splitters Feb. 5, 2013
8354894 RF signal combiner/splitter and related methods Jan. 15, 2013
8350640 Transceiver module for satellite antenna Jan. 8, 2013
8350641 Band selective isolation bridge for splitter Jan. 8, 2013
8350644 Band pass filter combiner Jan. 8, 2013
8350642 Power splitter/combiner Jan. 8, 2013
8344824 Asymmetric power divider Jan. 1, 2013
8339216 Duplexer and method for separating a transmit signal and a receive signal Dec. 25, 2012
8324984 Variable bandwidth tunable silicon duplexer Dec. 4, 2012
8283995 Balanced-output triplexer Oct. 9, 2012
8283996 Duplexer module Oct. 9, 2012
8274342 Duplexer and electronic device Sep. 25, 2012
8264298 Filtering device and a method for filtering a signal Sep. 11, 2012
8264297 Balun signal splitter Sep. 11, 2012
8258892 High-speed bandpass serial data link Sep. 4, 2012
8248184 Duplexer module Aug. 21, 2012
8228137 Filter, demultiplexer, and module including demultiplexer, communication apparatus Jul. 24, 2012
8222969 Duplexer module Jul. 17, 2012
8207799 Band reject filters Jun. 26, 2012
8188809 Output selection of multi-output filter May. 29, 2012
8183956 Diplexer circuit, high-frequency circuit and high-frequency module May. 22, 2012
8183957 Radio communication apparatus May. 22, 2012
8174339 Duplexer, substrate for duplexer, and electronic apparatus May. 8, 2012
8138854 Filter, branching filter and communication apparatus Mar. 20, 2012
8130057 Lumped cross-coupled Wilkinson circuit Mar. 6, 2012
8081047 Multi-band circuit with first and second signal branches Dec. 20, 2011
8081048 Branching filter, semiconductor integrated circuit device, and communication mobile terminal Dec. 20, 2011
8072292 High-frequency module Dec. 6, 2011
8063718 Duplexer, communication module, and communication device Nov. 22, 2011
8022787 Duplexer, module including a duplexer and communication apparatus Sep. 20, 2011
8008990 Generalized multiplexing network Aug. 30, 2011
7982554 Multi-band high-frequency circuit, multi-band high frequency circuit component and multi-band communication apparatus using same Jul. 19, 2011
7982556 Splitter with a printed element Jul. 19, 2011
7978024 Integrated balanced-unbalanced duplexer Jul. 12, 2011

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