ClassID:

214024

H01P1/39 - CPC Classification

Classification description:

Auxiliary devices; Non-reciprocal transmission devices; Circulators; Junction circulators, e.g. Y-circulators Hollow waveguide circulators

Recent Application in this class:
#1
20260106363
2026-04-16

Four-port circulator

#2
20240177905
2024-05-30

Gapless ferrite structure for circulator or isolator

#3
20240145895
2024-05-02

CIRCULAR FILTER ASSEMBLY

#4
20230420820
2023-12-28

Broadband junction ferrite circulator

#5
20230155269
2023-05-18

HIGH POWER ISOLATOR HAVING COOLING CHANNEL STRUCTURE

#6
20210050133
2021-02-18

SINTERING AIDS FOR DIELECTRIC MATERIALS CONFIGURED FOR CO-FIRING WITH NICKEL ZINC FERRITES

#7
20190386371
2019-12-19

Method for Making a Composite Substrate Circulator Component

#8
20190036194
2019-01-31

TUNABLE ANTENNA COUPLING UNIT (ACU) FOR MICROWAVE DIGITAL RADIOS

#9
20190006727
2019-01-03

Pluggable receiver splitter for two-transmitter two-receiver microwave digital radios

#10
20180191047
2018-07-05

Structure comprising at least a first element bonded to a carrier having a closed metallic channel waveguide formed therein

#11
20180177041
2018-06-21

Surface integrated waveguides and circuit structures therefor

#12
20180175473
2018-06-21

Method for making a composite substrate circulator component

#13
20180130585
2018-05-10

APPARATUS AND METHODS RELATED TO FERRITE BASED CIRCULATORS

#14
20180115039
2018-04-26

HIGH POWER WAVEGUIDE CIRCULATOR WITH RADIAL BI-COMPOSITE RESONATOR

#15
20160380323
2016-12-29

Systems and methods for using power dividers for improved ferrite circulator RF power handling

#16
20160315369
2016-10-27

(M+1)-for-M ferrite redundancy switch and switch system

#17
20160268664
2016-09-15

Multi-junction waveguide circulator using dual control wires for multiple ferrite elements

#18
20160254581
2016-09-01

Non-reciprocal circuit device and communication apparatus using the same

#19
20160181680
2016-06-23

Multi-junction waveguide circulators with shared discontinuous transformers

#20
20160164458
2016-06-09

Hollow supports and anchors for mechanical resonators

#21
20160164157
2016-06-09

Systems and methods for radio frequency (RF) energy wave switching using asymmetrically wound ferrite circulator elements

#22
20160149284
2016-05-26

Ferrite circulator with reduced-height transformers

#23
20160149283
2016-05-26

Two-transmitter two-receiver antenna coupling unit for microwave digital radios

#24
20160148732
2016-05-26

Apparatus and methods related to ferrite based circulators

#25
20160087324
2016-03-24

Waveguide circulator with improved transition to other transmission line media

#26
20160049712
2016-02-18

Multi-junction waveguide circulator using dual control wires for multiple ferrite elements

#27
20160013530
2016-01-14

Systems and methods for ferrite redundancy switch networks

#28
20150357697
2015-12-10

Ferrite circulator with asymmetric dielectric spacers

#29
20150288047
2015-10-08

Systems and methods for using power dividers for improved ferrite circulator RF power handling

#30
20150288046
2015-10-08

Systems and methods for improved ferrite circulator RF power handling

#31
20150270594
2015-09-24

Waveguide circulator configuration and method of using same

#32
20150207196
2015-07-23

Waveguide circulator having stepped floor/ceiling and quarter-wave dielectric transformer

#33
20150188209
2015-07-02

Ferrite circulator with asymmetric dielectric spacers

#34
20150048983
2015-02-19

SYSTEMS AND METHODS FOR A STACKED WAVEGUIDE CIRCULATOR

#35
20150042411
2015-02-12

Ferrite circulator with reduced-height transformers

#36
20140354368
2014-12-04

Combined-branched-ferrite element with interconnected resonant sections for use in a multi-junction waveguide circulator

#37
20140340165
2014-11-20

Ferrite circulator with integrated E-plane transition

#38
20140320227
2014-10-30

Modular ferrite switch for constructing switch networks

#39
20140285279
2014-09-25

Waveguide circulator with improved transition to other transmission line media

#40
20140285278
2014-09-25

Ferrite circulator with asymmetric dielectric spacers

#41
20140049335
2014-02-20

Reconfigurable switching element for operation as a circulator or power divider

#42
20140049334
2014-02-20

Waveguide circulator with tapered impedance matching component

#43
20140049333
2014-02-20

Ferrite circulator with asymmetric features

#44
20140049332
2014-02-20

Switching ferrite circulator with an electronically selectable operating frequency band

#45
20130271347
2013-10-17

Systems and methods for a stacked waveguide circulator

#46
20120280760
2012-11-08

Apparatus and methods related to ferrite based circulators

#47
20120161895
2012-06-28

Microwave pulse power switching system

#48
20120081189
2012-04-05

Systems and methods for a stacked waveguide circulator

#49
20100207701
2010-08-19

Waveguide circulator

#50
20100066460
2010-03-18

Waveguide circulator

#51
20090108953
2009-04-30

Multi-junction waveguide circulator with overlapping quarter-wave transformers

#52
20070139131
2007-06-21

Ferrite waveguide circulator with thermally-conductive dielectric attachments

#53
20060261909
2006-11-23

Compact waveguide isolator

#54
20060250195
2006-11-09

Multi-junction waveguide circulator with elements having no discontinuities

#55
20060232353
2006-10-19

Latching ferrite waveguide circulator without E-plane air gaps

#56
20050179504
2005-08-18

Transformer-free waveguide circulator

#57
20050110591
2005-05-26

Microwave circulator with deformable membrane

#58
20050030117
2005-02-10

Multi-junction waveguide circulator using a single control wire for multiple ferrite elements

#59
16904100
2022-07-19

Waveguide system and the manufacturability thereof

#60
13949668
2014-08-12

Circulator with ferrite element attached to waveguide sidewalls