ClassID:

213995

H01P1/2135 - CPC Classification

Classification description:

Auxiliary devices; Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using strip line filters

Recent Application in this class:
#1
20240097300
2024-03-21

MULTI-BAND FILTER

#2
20220278435
2022-09-01

Coupled transmission line resonate RF filter

#3
20220223990
2022-07-14

Substrate-integrated waveguide filtering crossover having a dual mode rectangular cavity coupled to eight single mode square cavities

#4
20220109241
2022-04-07

Terahertz mixer, method of manufacturing terahertz mixer, and electronic device including terahertz mixer

#5
20220085476
2022-03-17

MULTI-POLE RF FILTERS

#6
20220021097
2022-01-20

Active waveguide transition having a probe and RF amplifier system and which is usable in a transmit/receive communication system

#7
20210344363
2021-11-04

Diplexer and radio frequency circuit

#8
20210203050
2021-07-01

METHOD FOR ESTABLISHING ULTRA WIDE BAND CLASS I CHEBYSHEV MULTI-SECTION WILKINSON POWER DIVIDER HAVING EQUAL RIPPLE ISOLATION CHARACTERISTIC

#9
20210005949
2021-01-07

Coupled transmission line resonate RF filter

#10
20200344875
2020-10-29

Multilayer circuit board comprising serially connected signal lines and stubs disposed in different layers of the multilayer circuit board

#11
20200220242
2020-07-09

Tunable radio frequency circuit, control method and electronic device including the same

#12
20200112093
2020-04-09

Base station antenna

#13
20200076033
2020-03-05

Filter assemblies, tuning elements and method of tuning a filter

#14
20200028231
2020-01-23

Filtering dielectric resonator antennas including a loop feed structure for implementing radiation cancellation

#15
20190348735
2019-11-14

LOW-LOSS MICROSTRIP PRINTED CIRCUIT BOARD FILTERING DEVICES

#16
20190288362
2019-09-19

Coaxial wiring device and transmission/reception integrated splitter

#17
20190190109
2019-06-20

Coupled transmission line resonate RF filter

#18
20190074602
2019-03-07

Enhanced phase shifter circuit to reduce RF cables

#19
20180331406
2018-11-15

Filter assemblies, tuning elements and method of tuning a filter

#20
20180309181
2018-10-25

Combiner

#21
20180302059
2018-10-18

Multiplexer

#22
20180302057
2018-10-18

Matching module

#23
20180115037
2018-04-26

High-frequency filter and communication device module

#24
20180108962
2018-04-19

Multi-line phase shifter of multi-band mobile communication base station antenna

#25
20180069285
2018-03-08

Coaxial wiring device and transmission/reception integrated splitter

#26
20170338788
2017-11-23

Double-sided circuit

#27
20170338560
2017-11-23

Feeding matching apparatus of multiband antenna, multiband antenna, and radio communication device

#28
20170279175
2017-09-28

Irreversible circuit element and module

#29
20170222293
2017-08-03

Microstrip multiplexer

#30
20170155370
2017-06-01

Method of manufacturing an acoustic wave element

#31
20170141446
2017-05-18

Filter assemblies, tuning elements and method of tuning a filter

#32
20170084977
2017-03-23

Tuning element for radio frequency resonator

#33
20170084972
2017-03-23

RF FILTER

#34
20160359239
2016-12-08

Enhanced phase shifter circuit to reduce RF cables

#35
20160344099
2016-11-24

Feeding matching apparatus of multiband antenna, multiband antenna, and radio communication device

#36
20160301385
2016-10-13

Filter device having a filter connection conductor line including parallel connected conductor lines

#37
20160254796
2016-09-01

Filter

#38
20160248156
2016-08-25

Base station antenna

#39
20160248139
2016-08-25

Coaxial wiring device and transmission/reception integrated splitter

#40
20160247604
2016-08-25

Cable structure

#41
20160156373
2016-06-02

Millimeter wave dual-mode diplexer and method

#42
20160028372
2016-01-28

Acoustic wave elements and antenna duplexers, and modules and electronic devices using same

#43
20160028358
2016-01-28

Signal transmission cable and communication device module

#44
20160028137
2016-01-28

Frequency demultiplexer

#45
20150372365
2015-12-24

Irreversible circuit element and module

#46
20150318835
2015-11-05

Circuit substrate and branch circuit including high pass filter and low pass filter with mounting portions on substrate body

#47
20150214611
2015-07-30

Antenna device and communication terminal apparatus

#48
20150200467
2015-07-16

Enhanced phase shifter circuit to reduce RF cables

#49
20150077195
2015-03-19

Ultra-broadband diplexer using waveguide and planar transmission lines

#50
20140218135
2014-08-07

Compact microwave distributed-element dual-mode bandpass filter

#51
20140197993
2014-07-17

Feeding matching apparatus of multiband antenna, multiband antenna, and radio communication device

#52
20140128012
2014-05-08

Filter, receiver, transmitter and transceiver

#53
20140022958
2014-01-23

Printed circuit board and diplexer circuit

#54
20140002209
2014-01-02

High-frequency module

#55
20130285765
2013-10-31

Broad band diplexer using suspended strip-line capacitor technology

#56
20130114470
2013-05-09

Duplexer with enhanced isolation

#57
20130002373
2013-01-03

HIGH REJECTION BAND-STOP FILTER AND DIPLEXER USING SUCH FILTERS

#58
20130002371
2013-01-03

Duplexer

#59
20120313727
2012-12-13

2-channel diplexer structure

#60
20120274431
2012-11-01

Transformer having high degree of coupling, electronic circuit, and electronic device

#61
20120256616
2012-10-11

Hand-held microwave spectrum analyzer with operation range from 9 KHz to over 20 GHz

#62
20120218165
2012-08-30

Antenna-matching device, antenna device and mobile communication terminal

#63
20120081197
2012-04-05

Method of tuning resonance wavelength of ring resonator

#64
20120050236
2012-03-01

Electromechanical systems piezoelectric contour mode differential resonators and filters

#65
20120049985
2012-03-01

Multimode frontend circuit

#66
20110316652
2011-12-29

Multiband resonator and multiband-pass filter

#67
20110309994
2011-12-22

Antenna device and communication terminal apparatus

#68
20110248793
2011-10-13

Band-pass filter based on CRLH resonator and duplexer using the same

#69
20110169588
2011-07-14

Branching filter, and wireless communication module and wireless communication device using same

#70
20110140804
2011-06-16

Band pass filter combiner

#71
20110133860
2011-06-09

Bandpass filter, high-frequency device and communications apparatus

#72
20110109402
2011-05-12

Power combiners and dividers based on composite right and left handed metamaterial structures

#73
20110086596
2011-04-14

Signal splitting device and wireless communication device using the same

#74
20110080235
2011-04-07

Bandpass filter and radio communication module and radio communication device using the same

#75
20110057745
2011-03-10

High-frequency switch

#76
20110032050
2011-02-10

Duplexer for integration in communication terminals

#77
20110006861
2011-01-13

Liquid crystalline polymer and multilayer polymer-based passive signal processing components for RF/wireless multi-band applications

#78
20110006857
2011-01-13

Complex resonator, bandpass filter, and diplexer, and wireless communication module and wireless communication device using same

#79
20100295630
2010-11-25

Diplexer synthesis using composite right/left-handed phase-advance/delay lines

#80
20100265153
2010-10-21

Ku-band coaxial to microstrip mixed dielectric PCB interface with surface mount diplexer

#81
20100253448
2010-10-07

Diplexer, and wireless communication module and wireless communication apparatus using the same

#82
20100188167
2010-07-29

Ku-band diplexer

#83
20100182097
2010-07-22

High-frequency device and high-frequency circuit used therein

#84
20100171566
2010-07-08

SPLITTER/COMBINER CIRCUIT

#85
20100171563
2010-07-08

Multiple pole multiple throw switch device based on composite right and left handed metamaterial structures

#86
20100166000
2010-07-01

Broadbrand switched multiplexer

#87
20100164652
2010-07-01

FILTER, COMMUNICATION MODULE, AND COMMUNICATION APPARATUS

#88
20100123528
2010-05-20

Balanced-output triplexer

#89
20100109803
2010-05-06

POWER COMBINERS AND DIVIDERS BASED ON COMPOSITE RIGHT AND LEFT HANDED METAMATERIAL STRUCTURES

#90
20100079220
2010-04-01

N-channel multiplexer

#91
20090305074
2009-12-10

Meta-material for use in a base station of a wireless communication system

#92
20090289738
2009-11-26

Filter Characteristics Regulating Method, Filter Characteristics Regulator, Filter, and Communication Apparatus

#93
20090219110
2009-09-03

Merged-filter multiplexer

#94
20090160575
2009-06-25

Power combiners and dividers based on composite right and left handed metamaterial structures

#95
20090160430
2009-06-25

Hand-held microwave spectrum analyzer with operation range from 9 KHz to over 20 GHz

#96
20090147805
2009-06-11

Multiplexing circuit and designing method therefor

#97
20090121803
2009-05-14

Duplexer and transceiver

#98
20090079648
2009-03-26

High frequency module

#99
20090051463
2009-02-26

SPLITTER/COMBINER CIRCUIT

#100
20090046029
2009-02-19

Antenna device

#101
20090034504
2009-02-05

High-frequency component

#102
20080310382
2008-12-18

Low-voltage control high-frequency switch and composite high-frequency component

#103
20080224791
2008-09-18

Integrated balanced-unbalanced duplexer

#104
20080174386
2008-07-24

Diplexer and multiplexer using the same

#105
20080037590
2008-02-14

Multiplexer and wireless receiver

#106
20070216495
2007-09-20

Splitter/combiner circuit

#107
20070152747
2007-07-05

Multiplexed amplifier

#108
20070085108
2007-04-19

Liquid crystalline polymer and multilayer polymer-based passive signal processing components for RF/wireless multi-band applications

#109
20070033243
2007-02-08

Microwave filter banks

#110
20060286942
2006-12-21

High frequency module

#111
20060232357
2006-10-19

Temperature and frequency variable gain attenuator

#112
20060194690
2006-08-31

Alumina-based ceramic material and production method thereof

#113
20060103488
2006-05-18

Duplexer, and laminate-type high-frequency device and communication equipment using the same

#114
20050253672
2005-11-17

High-frequency circuit device and high-frequency circuit module

#115
20050224845
2005-10-13

Miniature broadband switched filter bank

#116
20050221769
2005-10-06

High-frequency switch circuit

#117
20050221768
2005-10-06

High-frequency switch circuit

#118
20050185679
2005-08-25

Demultiplexer and multiplexer

#119
20050146398
2005-07-07

Multilayer diplexer

#120
20050040913
2005-02-24

Band pass filter

#121
16452182
2020-05-19

Integrated high pass filter for microwave system in package

#122
14274039
2016-01-12

Phase filter for radio frequency (RF) signals

#123
14204646
2016-04-26

Dynamically reconfigurable bandpass filters