ClassID:

219599

H03F2200/318 - page 2 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A matching circuit being used as coupling element between two amplifying stages

Recent Application in this class:
#301
20150229283
2015-08-13

Broadband amplifier

#302
20150222234
2015-08-06

Power amplifier module

#303
20150214994
2015-07-30

Three-dimensional power amplifier architecture

#304
20150214908
2015-07-30

Power amplifier

#305
20150214905
2015-07-30

Amplifier

#306
20150207467
2015-07-23

Method and system for linearizing an amplifier using transistor-level dynamic feedback

#307
20150194884
2015-07-09

Direct current (DC)-DC converter having a multi-stage output filter

#308
20150188501
2015-07-02

POWER AMPLIFYING APPARATUS

#309
20150180427
2015-06-25

Power amplification circuit and power amplification module

#310
20150171799
2015-06-18

Signal path termination

#311
20150171796
2015-06-18

Power amplifying module

#312
20150130539
2015-05-14

Quasi-differential RF power amplifier with high level of harmonics rejection

#313
20150123731
2015-05-07

Amplifier circuit with cross wiring of direct-current signals and microwave signals

#314
20150042405
2015-02-12

Power detection circuit and RF signal amplification circuit having the same

#315
20150042340
2015-02-12

Apparatus and method for amplifying a radio-frequency signal

#316
20150015339
2015-01-15

Power amplifier architectures with input power protection circuits

#317
20140354350
2014-12-04

Self-healing technique for high frequency circuits

#318
20140347123
2014-11-27

Amplifier

#319
20140312977
2014-10-23

Apparatus and methods for reducing capacitive loading of an envelope tracker

#320
20140285268
2014-09-25

Radio frequency amplifying circuit and power amplifying module

#321
20140176243
2014-06-26

Systems and methods to adjust the matching conditions of an amplifier

#322
20140084998
2014-03-27

Apparatus and methods for capacitive load reduction

#323
20140002187
2014-01-02

Integrated RF front end system

#324
20130344825
2013-12-26

Process-compensated HBT power amplifier bias circuits and methods

#325
20130314163
2013-11-28

Integrated stacked power amplifier and RF switch architecture

#326
20130293310
2013-11-07

Dual inductive element charge pump buck and buck power supplies

#327
20130271224
2013-10-17

Multiband RF switch ground isolation

#328
20130271223
2013-10-17

Amplifier with floating well

#329
20130271221
2013-10-17

Direct current (DC)-DC converter having a multi-stage output filter

#330
20130260704
2013-10-03

Radio frequency power amplifier with low dynamic error vector magnitude

#331
20130217341
2013-08-22

High efficiency path based power amplifier circuitry

#332
20130190036
2013-07-25

Multi-mode bypass driver amplifier with tunable load matching

#333
20130177106
2013-07-11

Multiple functional equivalence digital communications interface

#334
20130147445
2013-06-13

Voltage multiplier charge pump buck

#335
20130135052
2013-05-30

Interference reduction between RF communications bands

#336
20130130752
2013-05-23

Flip-chip linear power amplifier with high power added efficiency

#337
20130113560
2013-05-09

Power amplifying circuit and high-frequency module

#338
20130109434
2013-05-02

Multi-mode multi-band self-realigning power amplifier

#339
20130057350
2013-03-07

Apparatus and method for low noise amplification

#340
20130043944
2013-02-21

Cascaded converged power amplifier

#341
20130029619
2013-01-31

Signal path termination

#342
20130009708
2013-01-10

Wideband Doherty amplifier circuit with impedance combiner

#343
20120319780
2012-12-20

Wideband doherty amplifier circuit having a constant impedance combiner

#344
20120302186
2012-11-29

Independent PA biasing of a driver stage and a final stage

#345
20120299661
2012-11-29

PA bias power supply undershoot compensation

#346
20120299660
2012-11-29

Selecting PA bias levels of RF PA circuitry during a multislot burst

#347
20120299659
2012-11-29

Efficiency improvement of doherty power amplifier using supply switching and digitally controlled gate bias modulation of peaking amplifier

#348
20120299657
2012-11-29

Multi-mode power amplifier

#349
20120299647
2012-11-29

PA envelope power supply undershoot compensation

#350
20120299646
2012-11-29

Selecting a converter operating mode of a PA envelope power supply

#351
20120299645
2012-11-29

Temperature correcting an envelope power supply signal for RF PA circuitry

#352
20120293257
2012-11-22

High frequency power amplifier

#353
20120293249
2012-11-22

Power amplifier insensitive to load impedance changes

#354
20120282869
2012-11-08

RF PA linearity requirements based converter operating mode selection

#355
20120280753
2012-11-08

System and method for adjusting gain frequency response of RF power amplifier

#356
20120280752
2012-11-08

Embedded RF PA temperature compensating bias transistor

#357
20120280747
2012-11-08

Feedback based buck timing of a direct current (DC)-DC converter

#358
20120280746
2012-11-08

DC-DC converter semiconductor die structure

#359
20120268211
2012-10-25

Power amplifier

#360
20120262234
2012-10-18

Power amplifier with advanced linearity

#361
20120235736
2012-09-20

Charge pump based power amplifier envelope power supply and bias power supply

#362
20120229217
2012-09-13

High-frequency power amplifier

#363
20120229210
2012-09-13

Overlay class F choke

#364
20120223774
2012-09-06

Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry

#365
20120223773
2012-09-06

Linear mode and non-linear mode quadrature PA circuitry

#366
20120212295
2012-08-23

Power Amplifier Apparatus, and Receiving Apparatus of a User Equipment

#367
20120200352
2012-08-09

APPARATUS AND METHOD FOR AN INTEGRATED MULTI-MODE MULTI-BAND POWER AMPLIFIER

#368
20120194276
2012-08-02

Low noise amplifiers including group III nitride based high electron mobility transistors

#369
20120184233
2012-07-19

Combined RF detector and RF attenuator with concurrent outputs

#370
20120170690
2012-07-05

Auto configurable 2/3 wire serial interface

#371
20120169565
2012-07-05

Tunable radio front end and methods

#372
20120161877
2012-06-28

PA bias power supply efficiency optimization

#373
20120154055
2012-06-21

Power amplifier

#374
20120154043
2012-06-21

High-frequency power amplifier device

#375
20120146733
2012-06-14

Power amplifier

#376
20120146731
2012-06-14

Apparatus and methods for capacitive load reduction

#377
20120139641
2012-06-07

Apparatus and methods for capacitive load reduction

#378
20120133441
2012-05-31

Electronic circuit

#379
20120098595
2012-04-26

Quadrature power amplifier architecture

#380
20120034956
2012-02-09

System and method for biasing a power amplifier

#381
20120032743
2012-02-09

Low-noise amplifier with gain enhancement

#382
20120032742
2012-02-09

CMOS millimeter-wave variable-gain low-noise amplifier

#383
20110316637
2011-12-29

Amplifier module with multiple operating modes

#384
20110316636
2011-12-29

Digital tunable inter-stage matching circuit

#385
20110310990
2011-12-22

Power amplification apparatus, OFDM modulation apparatus, wireless transmission apparatus, and distortion reduction method for power amplification apparatus

#386
20110298545
2011-12-08

RF power amplifier device and operating method thereof

#387
20110273162
2011-11-10

Power detector

#388
20110223871
2011-09-15

Adder, and power combiner, quadrature modulator, quadrature demodulator, power amplifier, transmitter and wireless communicator using same

#389
20110222444
2011-09-15

Split-band power amplifiers and duplexers for LTE-advanced front end for improved IMD

#390
20110222443
2011-09-15

LTE-Advanced (4G) front end radio architecture

#391
20110210795
2011-09-01

High frequency power amplifier and operating method thereof

#392
20110140772
2011-06-16

Self-healing power amplifier: methods and apparatus

#393
20110121903
2011-05-26

Power amplifier

#394
20110115565
2011-05-19

Cascaded amplifiers with transformer-based bypass mode

#395
20110070848
2011-03-24

Dynamic stability, gain, efficiency and impedance control in a linear/non-linear CMOS power amplifier

#396
20110068873
2011-03-24

RF power amplifiers with linearization

#397
20110065472
2011-03-17

Apparatus and method for an integrated, multi-mode, multi-band, and multi-stage power amplifier

#398
20110057712
2011-03-10

SELF-HEALING TECHNIQUE FOR HIGH FREQUENCY CIRCUITS

#399
20110050347
2011-03-03

Method and system for amplifier control

#400
20110043285
2011-02-24

Digital tunable inter-stage matching circuit

#401
20110032035
2011-02-10

Amplifier module with multiple operating modes

#402
20100327969
2010-12-30

Power amplifier having parallel amplification stages and associated impedance matching networks

#403
20100321110
2010-12-23

Linear RF power amplifier with frequency-selectable impedance matching

#404
20100315167
2010-12-16

Inter-stage matching network to enhance common mode stability

#405
20100301935
2010-12-02

Bias circuit, high-power amplifier, and portable information terminal

#406
20100295629
2010-11-25

Output circuit with integrated impedance matching, power combining and filtering for power amplifiers and other circuits

#407
20100277243
2010-11-04

Passive spectrum control for pulsed RF power amplifiers

#408
20100255792
2010-10-07

Adaptive radio transceiver with an antenna matching circuit

#409
20100231304
2010-09-16

Semiconductor device

#410
20100225401
2010-09-09

Semiconductor device

#411
20100202499
2010-08-12

Wireless radio frequency signal transceiving system

#412
20100127780
2010-05-27

Power amplifiers with discrete power control

#413
20100090767
2010-04-15

RF amplification device

#414
20100033241
2010-02-11

High frequency amplifier

#415
20090295483
2009-12-03

RF power amplifiers with linearization

#416
20090207939
2009-08-20

System and method for burst mode amplifier

#417
20090201085
2009-08-13

Power amplifying apparatus and mobile communication terminal

#418
20090189696
2009-07-30

Low-noise amplifier

#419
20090161329
2009-06-25

Semiconductor device

#420
20090096068
2009-04-16

Semiconductor circuit with amplifier, bond wires and inductance compensating bond wire

#421
20090039960
2009-02-12

Low power consuming mixed mode power amplifier

#422
20090009241
2009-01-08

Power amplifier using power combiner

#423
20080303117
2008-12-11

Integrated circuit with multi-stage matching circuit

#424
20080290966
2008-11-27

Adaptive radio transceiver with filtering

#425
20080265988
2008-10-30

Multiple output power mode amplifier

#426
20080231367
2008-09-25

Amplifier

#427
20080231358
2008-09-25

Power amplifier circuit

#428
20080204145
2008-08-28

Bias control circuit and method of controlling bias of RF power amplifier

#429
20080191313
2008-08-14

Adaptive radio transceiver with floating mosfet capacitors

#430
20080186099
2008-08-07

Power amplifier and multistage amplification circuit including same

#431
20080182526
2008-07-31

Adaptive radio transceiver with an antenna matching circuit

#432
20080180178
2008-07-31

Power amplifier with an output matching network

#433
20080180168
2008-07-31

Amplifier, transmitter arrangement having an amplifier and method for amplifying a signal

#434
20080139131
2008-06-12

Switched impedance transformer for semiconductor circuits

#435
20080136512
2008-06-12

Dual-mode, dual-load high efficiency RF power amplifier

#436
20080088376
2008-04-17

High frequency power amplifier

#437
20080055001
2008-03-06

Power amplifying apparatus and mobile communication terminal

#438
20080048777
2008-02-28

Semiconductor device

#439
20080030276
2008-02-07

Multi-mode power amplifier with high efficiency under backoff operation

#440
20080012659
2008-01-17

Resonator matching network

#441
20080012635
2008-01-17

Multiple power mode amplifier with bias modulation option and without bypass switches

#442
20080007329
2008-01-10

Multiple power mode amplifier with bias modulation option and without bypass switches

#443
20080007328
2008-01-10

Multiple power mode amplifier with bias modulation option and without bypass switches

#444
20080007327
2008-01-10

Multiple power mode amplifier with bias modulation option and without bypass switches

#445
20080001674
2008-01-03

Regulation of an amplification apparatus

#446
20070285154
2007-12-13

Adaptive radio transceiver with filtering

#447
20070273445
2007-11-29

Millimeter-wave cascode amplifier gain boosting technique

#448
20070252651
2007-11-01

Power Amplifier With A Output Matching Network

#449
20070236295
2007-10-11

FM Power Amplifier With Antenna Power Control

#450
20070222508
2007-09-27

Multi-mode power amplifier with reduced low power current consumption

#451
20070194853
2007-08-23

High-power amplifier

#452
20070188224
2007-08-16

CDMA power amplifier design for low and high power modes

#453
20070176687
2007-08-02

High frequency power amplifier

#454
20070146078
2007-06-28

Selective amplifier

#455
20070146077
2007-06-28

Radio frequency power amplifier

#456
20070096805
2007-05-03

Multiple power mode amplifier with bias modulation option and without bypass switches

#457
20070049205
2007-03-01

Adaptive radio transceiver with an antenna matching circuit

#458
20070024376
2007-02-01

Radio frequency power amplifier module

#459
20070024375
2007-02-01

Radio frequency amplification apparatus

#460
20070024317
2007-02-01

Apparatus for obtaining precision integrated resistors

#461
20070001300
2007-01-04

Semiconductor device

#462
20060261890
2006-11-23

Circuits and methods for implementing power amplifiers for millimeter wave applications

#463
20060232362
2006-10-19

Resonator matching network

#464
20060208796
2006-09-21

Bias control for reducing amplifier power consumption and maintaining linearity

#465
20060114062
2006-06-01

Self adaptable bias circuit for enabling dynamic control of quiescent current in a linear power amplifier

#466
20060028278
2006-02-09

Radio frequency power amplifier module

#467
20050269590
2005-12-08

Semiconductor device

#468
20050206457
2005-09-22

Amplifier system and method

#469
20050186925
2005-08-25

Adaptive radio transceiver with floating MOSFET capacitors

#470
20050186919
2005-08-25

Switch apparatus, switchable power amplification apparatus, and mobile communication terminal apparatus using the same

#471
20050153664
2005-07-14

Adaptive radio transceiver with an antenna matching circuit

#472
20050140455
2005-06-30

POWER AMPLIFYING MODULE

#473
20050122165
2005-06-09

High efficiency power amplifier with multiple power modes

#474
20050093626
2005-05-05

Radio frequency power amplifier module

#475
20050088236
2005-04-28

Power amplifier module

#476
20050083117
2005-04-21

Multiple power mode amplifier with bias modulation option and without bypass switches

#477
20050068101
2005-03-31

High efficiency power amplifier with multiple power modes

#478
16599600
2020-12-22

Amplifier circuitry

#479
15804268
2019-04-02

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

#480
15445811
2018-08-21

Power amplifier self-heating compensation circuit

#481
15238654
2017-12-19

Amplifier with automatic gain control

#482
15216814
2018-01-09

Rotated field effect transistor topology amplifier

#483
15158405
2017-06-06

Class F amplifiers using resonant circuits in an output matching network

#484
15157025
2017-09-26

Multiple-path RF amplifiers with angularly offset signal path directions, and methods of manufacture thereof