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Class Information
Number: 333/116
Name: Wave transmission lines and networks > Plural channel systems > Having branched circuits > Using directional coupler > Having tem lines > Using stripline
Description: Subject matter wherein each of the first and second transmission lines have a planar center conductor and a planar ground plate.










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8664807 Planar tri-mode cavity Mar. 4, 2014
8648675 Transmission-line bend structure Feb. 11, 2014
8643431 On-chip millimeter wave lange coupler Feb. 4, 2014
8643447 Terminal circuit and bi-directional coupler using the terminal circuit Feb. 4, 2014
8643448 High power miniature RF directional coupler Feb. 4, 2014
8633784 Misalignment tolerant contactless RF coupling device Jan. 21, 2014
8629736 Directional coupler Jan. 14, 2014
8629735 Electronic component Jan. 14, 2014
8587388 Multi-section velocity compensated microstrip directional coupler Nov. 19, 2013
8570115 Power division network device Oct. 29, 2013
8558640 Directional coupler Oct. 15, 2013
8559186 Inductor with patterned ground plane Oct. 15, 2013
8536956 Directional coupler Sep. 17, 2013
8508317 Broadband coupling filter Aug. 13, 2013
8476987 Integrated bidirectional coupler Jul. 2, 2013
8461938 Directional couplers for use in electronic devices, and methods of use thereof Jun. 11, 2013
8446230 Microwave directional coupler May. 21, 2013
8421553 Directional coupler Apr. 16, 2013
8410864 Integrated directional coupler Apr. 2, 2013
8384494 Multiband coupling circuit Feb. 26, 2013
8330552 Sandwich structure for directional coupler Dec. 11, 2012
8319574 Printed circuit board and transmitting/receiving module including the same Nov. 27, 2012
8314664 Microstrip technology hyperfrequency signal coupler Nov. 20, 2012
8314663 Directional coupler Nov. 20, 2012
8315576 Capacitive compensation of cascaded directional couplers Nov. 20, 2012
8299871 Directional coupler Oct. 30, 2012
8289102 Directional coupler Oct. 16, 2012
8258889 Broadband directional coupler with adjustable directionality Sep. 4, 2012
8232851 On-chip millimeter wave lange coupler Jul. 31, 2012
8228134 Method and system for processing signals via directional couplers embedded in an integrated circuit package Jul. 24, 2012
8228136 Micro P-coupler Jul. 24, 2012
8203398 Measuring power Jun. 19, 2012
8188808 Compact on-chip branchline coupler using slow wave transmission line May. 29, 2012
8174338 Impedance transforming hybrid coupler May. 8, 2012
8169277 Radio frequency directional coupler device and related methods May. 1, 2012
8093884 Directional coupler Jan. 10, 2012
8085113 Complementary-conducting-strip coupled-line Dec. 27, 2011
8063715 Directional coupler Nov. 22, 2011
8058946 Circuit module with non-contacting microwave interlayer interconnect Nov. 15, 2011
8058947 High-performance coupler Nov. 15, 2011
8049575 Directional coupler with inductively-compensated sharpness of directivity Nov. 1, 2011
8044749 Coupler device Oct. 25, 2011
8044748 Hybrid coupler and UHF television channel mixer comprising such a hybrid coupler Oct. 25, 2011
8023902 Adaptive radio transceiver with an antenna matching circuit Sep. 20, 2011
7961064 Directional coupler including impedance matching and impedance transforming attenuator Jun. 14, 2011
7907032 Directional coupler Mar. 15, 2011
7880557 Hybrid marchand/back-wave balun and double balanced mixer using same Feb. 1, 2011
7880560 Directional coupler and a receiving or transmitting device Feb. 1, 2011
7839235 Feed network device, antenna feeder subsystem, and base station system Nov. 23, 2010
7821354 Directional coupler Oct. 26, 2010

1 2 3 4 5 6 7 8










 
 
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