ClassID:

219919

H03F2203/45228 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers A transformer being added at the output or the load circuit of the dif amp

Recent Application in this class:
#1
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2023-07-27

TRANSFORMER-BASED MARCHAND BALUN AMPLIFIER FOR WIRELESS COMMUNICATION

#2
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2022-02-03

Millimeter wave transmitter design

#3
20210313943
2021-10-07

Millimeter wave transmitter design

#4
20200144976
2020-05-07

Millimeter wave transmitter design

#5
20200036339
2020-01-30

POWER AMPLIFIER CIRCUIT WITH DIVERTING CURRENT PATH

#6
20190305734
2019-10-03

Differential power amplifier

#7
20190198465
2019-06-27

Compensation device for transistors

#8
20190173439
2019-06-06

Power amplifier circuit

#9
20180337658
2018-11-22

RF phase shifting device

#10
20180302038
2018-10-18

Power amplifier ramping and power control with forward and reverse back-gate bias

#11
20180167038
2018-06-14

Fully depleted silicon on insulator power amplifier

#12
20180041243
2018-02-08

Systems and methods for a switchless radio front end

#13
20170366146
2017-12-21

Switched inductor/transformer for dual-band low-noise amplifier (LNA)

#14
20170012653
2017-01-12

Matching network for load line change

#15
20160233837
2016-08-11

Ground fault circuit interrupter and method

#16
20150248964
2015-09-03

Transformers and methods for fabricating transformers

#17
20150130540
2015-05-14

Amplifier

#18
20120308051
2012-12-06

Method and arrangement for driving a microphone

#19
20100052782
2010-03-04

Transformer and structure thereof and power amplifier

#20
15466112
2018-08-21

Balanced distributed power amplifier for monolithic microwave integrated circuit

#21
15187549
2017-10-17

Systems and methods for a switchless radio front end