ClassID:

213982

H01P1/2056 - CPC Classification

Classification description:

Auxiliary devices; Frequency-selective devices, e.g. filters; Filters for transverse electromagnetic waves; Comb or interdigital filters; Cascaded coaxial cavities Comb filters or interdigital filters with metallised resonator holes in a dielectric block

Recent Application in this class:
#1
20250379348
2025-12-11

FILTER

#2
20240413513
2024-12-12

Dielectric filter

#3
20240170825
2024-05-23

FILTER

#4
20240128650
2024-04-18

Antenna Filter Unit and Base Station having the Same

#5
20230420817
2023-12-28

CERAMIC DIELECTRIC BAND-PASS FILTER

#6
20230420816
2023-12-28

CERAMIC WAVEGUIDE FILTER

#7
20230238675
2023-07-27

RF FILTER ASSEMBLY FOR ANTENNA

#8
20220416387
2022-12-29

Ceramic filter using stepped impedance resonators having an inner cavity with a decreasing inner diameter provided by a plurality of steps

#9
20220416384
2022-12-29

Dielectric filter and communication device

#10
20220271411
2022-08-25

DIELECTRIC CERAMIC FILTER

#11
20220223989
2022-07-14

Dielectric filter and communication device

#12
20220085476
2022-03-17

MULTI-POLE RF FILTERS

#13
20210328317
2021-10-21

Multilayered filter device

#14
20210249746
2021-08-12

Dielectric filter and communications device

#15
20210091440
2021-03-25

Dielectric filter

#16
20200403287
2020-12-24

Dielectric filter and communications device

#17
20200381795
2020-12-03

Filter and transceiver comprising dielectric body resonators having frequency adjusting holes and a negative coupling hole

#18
20200373643
2020-11-26

Ceramic filter using stepped impedance resonators having an inner cavity with a decreasing inner diameter provided by a plurality of tapers

#19
20200313266
2020-10-01

Multi-band RF monoblock filter configured to have an antenna input/output located for separating first and second filters from a third filter

#20
20200313265
2020-10-01

Apparatus for radio frequency signals and method of manufacturing such apparatus

#21
20200303798
2020-09-24

Multilayered filter device

#22
20200227804
2020-07-16

Tunable filter with minimum variations in absolute bandwidth and insertion loss using a single tuning element

#23
20190267689
2019-08-29

Dielectric resonator having a sealed demetallized notch formed therein, for forming a dielectric filter and a base station therefrom

#24
20190229389
2019-07-25

Ceramic filter with differential conductivity

#25
20190148805
2019-05-16

Dielectric resonator and dielectric filter

#26
20190140626
2019-05-09

Tuning of Filters

#27
20190103646
2019-04-04

Bandpass filter having resonant holes formed in a block, where the resonant holes include hollowed-out sub regions

#28
20190097675
2019-03-28

Multiplexer, radio frequency front-end circuit, and communication device

#29
20180367170
2018-12-20

Electronic device including radio frequency (RF) filter module with stacked coaxial resonators and related methods

#30
20180316078
2018-11-01

Multi-band RF monoblock filter having first and third filters in a co-linear relationship and first and second filters in a side-by-side relationship

#31
20180277916
2018-09-27

Dielectric resonator and filter comprising a body with a resonant hole surrounded by an encirclement wall having a ring shaped exposed dielectric area

#32
20180277915
2018-09-27

Ceramic filters using stepped impedance resonators having an inner cavity with at least one step and at least one taper

#33
20180269914
2018-09-20

Filter and communication device comprising dielectric resonators having frequency adjusting holes and negative coupling holes of greater depth

#34
20180175471
2018-06-21

Filter structure improvement

#35
20180131069
2018-05-10

Systems and methods of designing, tuning and producing ceramic filters

#36
20180131064
2018-05-10

Tuning and measurement fixtures for ceramic filters

#37
20180131062
2018-05-10

Ceramic filter with differential conductivity

#38
20180131061
2018-05-10

Ceramic block filter having through holes of specific shapes

#39
20180131059
2018-05-10

Ceramic filter with window coupling

#40
20180115035
2018-04-26

Hermetic sealing of ceramic filters

#41
20180090805
2018-03-29

Ceramic block RF filter having a first plurality of through-hole resonators and a second plurality of through-holes for blocking RF signal coupling

#42
20170365904
2017-12-21

Method of fabricating a dielectric resonator having a sealed demetallized notch formed therein and a dielectric filter formed therefrom

#43
20170250678
2017-08-31

Tuning of filters

#44
20160372810
2016-12-22

Multi-band RF monoblock filter having first and third filters in a co-linear relationship and first and second filters in a side-by-side relationship

#45
20160094265
2016-03-31

Filter and transceiver comprising dielectric body resonators having frequency adjusting holes and negative coupling holes

#46
20160093938
2016-03-31

Ceramic filter using stepped impedance resonators having an inner cavity with at least one step and taper

#47
20160036116
2016-02-04

Dielectric resonator/filter including a metallized dielectric body having a blind hole therein with a demetallized notch that is sealed by a metallized sealing part

#48
20160006096
2016-01-07

Filtering device and method for adjusting filter characteristic

#49
20150372364
2015-12-24

Dielectric filter, duplexer, and communication device

#50
20150311882
2015-10-29

Filter assembly and a method of filtering

#51
20150280298
2015-10-01

Tunable band-pass filter

#52
20140104016
2014-04-17

Bracket for RF monoblock filter and filter-PCB assembly incorporating the same

#53
20140022031
2014-01-23

Method of applying patterned metallization to block filter resonators

#54
20130038404
2013-02-14

Duplex filter with recessed top pattern and cavity

#55
20130011798
2013-01-10

Method of applying patterned metallization to block filter resonators

#56
20120326806
2012-12-27

RF monoblock filter with a dielectric core and with a second filter disposed in a side surface of the dielectric core

#57
20120326805
2012-12-27

RF monoblock filter with recessed top pattern and cavity providing improved attenuation

#58
20120212387
2012-08-23

Coaxial resonator and dielectric filter formed from a dielectric block with at least one inner conductor surrounded by a non-conductive recess

#59
20120206217
2012-08-16

Band-Elimination Filter

#60
20120135867
2012-05-31

Input/output system and devices for use with superconducting devices

#61
20120119853
2012-05-17

Resonant elements designed vertically in a multilayer board and filters based on these elements

#62
20110248800
2011-10-13

Filter based on a combined via structure

#63
20110068887
2011-03-24

On-die micro-transformer structures with magnetic materials

#64
20100244984
2010-09-30

Resonator and filter

#65
20100231324
2010-09-16

Monoblock dielectric multiplexer capable of processing multi-band signals

#66
20100231323
2010-09-16

Ceramic monoblock filter with inductive direct-coupling and quadruplet cross-coupling

#67
20100141352
2010-06-10

Duplex filter comprised of dielectric cores having at least one wall extending above a top surface thereof for isolating through hole resonators

#68
20100066466
2010-03-18

RF monoblock filter having an outwardly extending wall for mounting a lid filter thereon

#69
20100029241
2010-02-04

Rf filter/resonator with protruding tabs

#70
20100001815
2010-01-07

FILTER FOR ELECTRONIC SIGNALS AND METHOD FOR MANUFACTURING IT

#71
20090267708
2009-10-29

Dielectric filter having a dielectric block with input/output electrodes of a bent shape at corner portions of the block

#72
20090231062
2009-09-17

Filter with multiple in-line shunt zeros

#73
20090167463
2009-07-02

Dielectric filter having tapered input/output electrodes

#74
20090146761
2009-06-11

RF monoblock filter with outwardly extending wall to define a cavity surrounding a top surface of the filter

#75
20090108962
2009-04-30

Dielectric filter for base station communication equipment

#76
20080231391
2008-09-25

Dielectric device

#77
20080204165
2008-08-28

Delay filter module

#78
20080176751
2008-07-24

Electrical filter having a dielectric substrate with wide and narrow regions for supporting capacitors and conductive windings

#79
20080100402
2008-05-01

Monoblock RF resonator/filter having a conductive transmission line connecting regions of conductive material

#80
20080018418
2008-01-24

Built-in cross-coupled dielectric filter

#81
20070279150
2007-12-06

Ceramic monoblock filter with inductive direct-coupling and quadruplet cross-coupling

#82
20070207748
2007-09-06

Antenna interface unit

#83
20070194862
2007-08-23

Low-rise duplexer

#84
20070184391
2007-08-09

Method of applying patterned metallization to block filter resonators

#85
20070103255
2007-05-10

Dielectric filter, dielectric duplexer, and communication apparatus

#86
20070085628
2007-04-19

Dielectric device

#87
20060267712
2006-11-30

Filter with multiple shunt zeros

#88
20060194690
2006-08-31

Alumina-based ceramic material and production method thereof

#89
20050264378
2005-12-01

Dielectric filter for filtering out unwanted higher order frequency harmonics and improving skirt response

#90
20050154110
2005-07-14

Composite dielectric material, composite dielectric substrate, prepreg, coated metal foil, molded sheet, composite magnetic substrate, substrate, double side metal foil-clad substrate, flame retardant substrate, polyvinylbenzyl ether resin composition, thermosetting polyvinylbenzyl ether resin composition, and method for preparing thermosetting polyvinylbenzyl ether resin composition

#91
20050146399
2005-07-07

Dielectric resonator, dielectric filter, dielectric duplexer, and communication apparatus incorporating the same

#92
20050130447
2005-06-16

Composite dielectric material, composite dielectric substrate, prepreg, coated metal foil, molded sheet, composite magnetic substrate, substrate, double side metal foil-clad substrate, flame retardant substrate, polyvinylbenzyl ether resin composition, and method for preparing thermosetting polyvinylbenzyl ether resin composition

#93
20050130446
2005-06-16

Composite dielectric material, composite dielectric substrate, prepreg, coated metal foil, molded sheet, composite magnetic substrate, substrate, double side metal foil-clad substrate, flame retardant substrate, polyvinylbenzyl ether resin composition, thermosetting polyvinylbenzyl ether resin composition, and method for preparing thermosetting polyvinylbenzyl ether resin composition

#94
20050128032
2005-06-16

Tunable planar capacitor

#95
20050116797
2005-06-02

Electronically tunable block filter

#96
20050095998
2005-05-05

Tunable matching circuit

#97
20050085200
2005-04-21

Tunable bandpass filter and method thereof

#98
20050007291
2005-01-13

System and method for impedance matching an antenna to sub-bands in a communication band

#99
16952017
2021-11-30

Hybrid distinct wavelength resonant band-pass filter with capacitive coupling metal pattern

#100
13179409
2016-03-15

Miniature tunable filter