Patents-Review.com
ClassID:

219230 ⎘

H03F3/21 - page 2 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only

Recent Application in this class:
#301
20210063514
2021-03-04

Radio-frequency power converter and radio-frequency transmission system for magnetic resonance imaging

 #302
20210058051
2021-02-25

Band pass filter

 #303
20210057305
2021-02-25

Semiconductor device, method of manufacturing semiconductor device, and electronic device

 #304
20210050841
2021-02-18

Acoustic wave device, high frequency front end circuit, and communication apparatus

 #305
20210050826
2021-02-18

Power amplifier systems with control interface and bias circuit

 #306
20210044318
2021-02-11

Low loss transmitter receiver switch with transformer matching network

 #307
20210044256
2021-02-11

Power amplifier module

 #308
20210044255
2021-02-11

Wide band Doherty power amplifier

 #309
20210043535
2021-02-11

Power amplifier module

 #310
20210036673
2021-02-04

Power combiner circuit

 #311
20210036664
2021-02-04

Envelope tracking power amplifier module and envelope tracking method for the same

 #312
20210036604
2021-02-04

Multi-level charge pump circuit

 #313
20210036139
2021-02-04

Compound semiconductor device, method for manufacturing the same and amplifier

 #314
20210027992
2021-01-28

Power generation systems and methods for plasma stability and control

 #315
20210021239
2021-01-21

Power supply for radio-frequency power amplifier

 #316
20210013847
2021-01-14

Power amplifier circuit

 #317
20210013842
2021-01-14

Bias circuit

 #318
20210013572
2021-01-14

Power amplifier with shielded transmission lines

 #319
20210006205
2021-01-07

Power amplification circuit

 #320
20210003646
2021-01-07

Multi-channel RF transmit system

 #321
20200412312
2020-12-31

Vacuum tube subwoofer extraction circuit system

 #322
20200412304
2020-12-31

Power amplifier circuit

 #323
20200412302
2020-12-31

Power amplifier

 #324
20200409400
2020-12-31

Linear stage efficiency techniques for H-bridge systems

 #325
20200403584
2020-12-24

Transformer based switches and systems for PALNA transceivers

 #326
20200403580
2020-12-24

HIGH-FREQUENCY AMPLIFIER CIRCUITRY

 #327
20200403577
2020-12-24

Consecutive doherty amplifier

 #328
20200402698
2020-12-24

High current integrated circuit-based transformer

 #329
20200395909
2020-12-17

Hybrid receiver front-end

 #330
20200395895
2020-12-17

Radio frequency circuit, communication device, and antenna module

 #331
20200395475
2020-12-17

High electron mobility transistors and power amplifiers including said transistors having improved performance and reliability

 #332
20200389141
2020-12-10

Variable gain circuit, high frequency switch, and transistor circuit

 #333
20200389134
2020-12-10

Low-noise amplifier with quantized conduction channel

 #334
20200389128
2020-12-10

Power amplifier circuit

 #335
20200382082
2020-12-03

Power amplifier circuit

 #336
20200382075
2020-12-03

RF power transistor circuit

 #337
20200374811
2020-11-26

High-frequency signal processing apparatus and wireless communication apparatus

 #338
20200373962
2020-11-26

Integrated RF front end with stacked transistor switch

 #339
20200373417
2020-11-26

Heterojunction bipolar transistor

 #340
20200366257
2020-11-19

Amplifier devices with reflection absorption

 #341
20200366253
2020-11-19

Multi-band digital compensator for a non-linear system

 #342
20200366250
2020-11-19

Power amplifier system

 #343
20200366202
2020-11-19

Multi-stage chained feedback regulated voltage supply

 #344
20200358404
2020-11-12

Systems and methods for automatically biasing power amplifiers using a controllable current source

 #345
20200350863
2020-11-05

Generation and synchronization of pulse-width modulated (PWM) waveforms for radio-frequency (RF) applications

 #346
20200350141
2020-11-05

High-power solid-state microwave generator for RF energy applications

 #347
20200336116
2020-10-22

Bias circuit and amplifying device with temperature compensation

 #348
20200336115
2020-10-22

Bias circuit and amplifying device with dual compensation

 #349
20200336110
2020-10-22

Apparatus and methods for envelope tracking

 #350
20200336106
2020-10-22

Power amplifier module

 #351
20200328720
2020-10-15

Envelope tracking power amplifier apparatus

 #352
20200325049
2020-10-15

Compact portable plasma reactor

 #353
20200321942
2020-10-08

Tunable filter for RF circuits

 #354
20200321937
2020-10-08

Acoustic wave device, high-frequency front-end circuit, and communication device

 #355
20200321933
2020-10-08

Acoustic wave device, high-frequency front end circuit, communication device, and method for manufacturing acoustic wave device

 #356
20200321917
2020-10-08

Symbol power tracking amplification system and a wireless communication device including the same

 #357
20200313626
2020-10-01

Cascode amplifier bias

 #358
20200304161
2020-09-24

Digital offset frequency generator based radio frequency transmitter

 #359
20200304075
2020-09-24

Power amplification apparatus and electromagnetic radiation apparatus

 #360
20200304071
2020-09-24

Power amplifier circuit

 #361
20200304070
2020-09-24

Power amplifier

 #362
20200301458
2020-09-24

DC-DC converter with improved regulation accuracy

 #363
20200295717
2020-09-17

Power amplification module

 #364
20200295713
2020-09-17

Multi-mode envelope tracking target voltage circuit and related apparatus

 #365
20200295428
2020-09-17

High directivity compact size inter layer coupler

 #366
20200287510
2020-09-10

Bias circuit and amplifying device with bias compensation function

 #367
20200287505
2020-09-10

Transistor bias adjustment for optimization of third order intercept point in a cascode amplifier

 #368
20200284983
2020-09-10

Dual-core fiber amplifier for separation of thermal and nonlinear effects

 #369
20200280286
2020-09-03

Power amplification module

 #370
20200274506
2020-08-27

Spatial power-combining devices with thin film resistors

 #371
20200274499
2020-08-27

Power amplifier system

 #372
20200274496
2020-08-27

Power amplifier system

 #373
20200273825
2020-08-27

Semiconductor device

 #374
20200266772
2020-08-20

Power amplifier circuit and antenna device

 #375
20200266764
2020-08-20

Power detector with all transistors being bipolar junction transistors

 #376
20200266763
2020-08-20

Bias circuit

 #377
20200259471
2020-08-13

Multi-mode amplifier architectures with resonant structures

 #378
20200252029
2020-08-06

Current control circuit and power amplifier circuit

 #379
20200251585
2020-08-06

COMPOUND SEMICONDUCTOR DEVICE, MANUFACTURING METHOD FOR COMPOUND SEMICONDUCTOR DEVICE, AND AMPLIFIER

 #380
20200251584
2020-08-06

Compound semiconductor device, method of manufacturing compound semiconductor device, and amplifier

 #381
20200244293
2020-07-30

Intrinsically linear, digital power amplifier employing nonlinearly-sized RF-DAC, multiphase driver, and overdrive voltage control

 #382
20200244233
2020-07-30

Power amplifier

 #383
20200244225
2020-07-30

Power supply with envelope tracking modulation

 #384
20200235062
2020-07-23

Semiconductor device

 #385
20200228086
2020-07-16

Matching circuit and communication device

 #386
20200228071
2020-07-16

Band-Reconfigurable and Load-Adaptive Power Amplifier

 #387
20200228067
2020-07-16

Power amplifier circuit

 #388
20200227545
2020-07-16

Gallium nitride transistors with source and drain field plates and their methods of fabrication

 #389
20200227544
2020-07-16

GALLIUM NITRIDE TRANSISTORS WITH DRAIN FIELD PLATES AND THEIR METHODS OF FABRICATION

 #390
20200224960
2020-07-16

Multifunctional radio frequency systems and methods for UV sterilization, air purification, and defrost operations

 #391
20200220756
2020-07-09

Systems and methods for maximizing power efficiency of a digital power amplifier in a polar transmitter

 #392
20200220507
2020-07-09

Structure and method of audio amplifier by dynamic impedance adjustment

 #393
20200212862
2020-07-02

RADIO FREQUENCY FRONT-END PROTECTION WITH TUNABLE COUPLER

 #394
20200212846
2020-07-02

Power amplifier circuit and power amplifier module

 #395
20200204126
2020-06-25

Amplifier with dual current mirrors

 #396
20200204124
2020-06-25

Amplifier with input bias current cancellation

 #397
20200203795
2020-06-25

Directional coupler and method for manufacturing the same as well as radio transmitter and radio device

 #398
20200203519
2020-06-25

Compound semiconductor device and fabrication method therefor, and amplifier

 #399
20200203291
2020-06-25

Radio frequency module and communication device

 #400
20200196052
2020-06-18

Modular signal conversion apparatus and method

 #401
20200195295
2020-06-18

Transmit/receive module

 #402
20200195213
2020-06-18

Power amplification module

 #403
20200195212
2020-06-18

Amplifying signals using compensating impedances to improve return loss and mismatch over gain modes

 #404
20200186104
2020-06-11

Power amplifier circuit

 #405
20200186101
2020-06-11

Amplification circuit

 #406
20200186090
2020-06-11

Method for adjusting output of amplifier by using sensing circuit configured to sense power supplied to amplifier and electronic device therefor

 #407
20200176441
2020-06-04

CMOS RF power limiter and ESD protection circuits

 #408
20200169436
2020-05-28

Method and apparatus for controlling spectral regrowth

 #409
20200169227
2020-05-28

Multi-band digital compensator for a non-linear system

 #410
20200169224
2020-05-28

Circuit structure and method for improving harmonic suppression capability of radio frequency power amplifier

 #411
20200169223
2020-05-28

Broadband power amplifier circuit

 #412
20200168571
2020-05-28

RF power amplifier pallet

 #413
20200162045
2020-05-21

High-frequency module with connection interface

 #414
20200162038
2020-05-21

Tuning system and method for automobile power amplifier

 #415
20200162037
2020-05-21

POWER AMPLIFICATION DEVICE AND TELEVISION SIGNAL TRANSMISSION SYSTEM

 #416
20200162036
2020-05-21

Copper wire bond solution for reducing thermal stress on an intermittently operable chipset controlling RF application for cooking

 #417
20200162032
2020-05-21

Devices and methods for detecting a saturation condition of a power amplifier

 #418
20200154368
2020-05-14

High-frequency signal processing apparatus and wireless communication apparatus

 #419
20200144973
2020-05-07

Methods and apparatuses for reflection measurements

 #420
20200144970
2020-05-07

FET operational temperature determination by gate structure resistance thermometry

 #421
20200144969
2020-05-07

FET operational temperature determination by field plate resistance thermometry

 #422
20200144966
2020-05-07

Radio frequency front-end circuit

 #423
20200136592
2020-04-30

Radio-frequency filter, multiplexer, radio-frequency front-end circuit, and communication device

 #424
20200136566
2020-04-30

Amplifying apparatus with improved linearity

 #425
20200136555
2020-04-30

FREQUENCY SWITCHING METHOD APPLICABLE TO MASS SPECTROMETER MULTIPOLE RF DRIVE SYSTEMS

 #426
20200133324
2020-04-30

Linear power supply circuit

 #427
20200127610
2020-04-23

Amplifier systems for driving a wide range of loads

 #428
20200119703
2020-04-16

Power amplifier and wireless communication device

 #429
20200119695
2020-04-16

Power amplifier circuit

 #430
20200112788
2020-04-09

Apparatus for discarding power noise, and apparatus for converting audio signal

 #431
20200112287
2020-04-09

Low-load-modulation power amplifier

 #432
20200106391
2020-04-02

Power amplifier circuit

 #433
20200106175
2020-04-02

Low-profile medium wave transmitting system

 #434
20200099457
2020-03-26

Methods and apparatuses for power control

 #435
20200083924
2020-03-12

Low loss transmitter receiver switch with transformer matching network

 #436
20200083914
2020-03-12

HIGH EFFICIENCY LINEARIZATION POWER AMPLIFIER FOR WIRELESS COMMUNICATION

 #437
20200083850
2020-03-12

Control circuit with bypass function

 #438
20200083845
2020-03-12

Power amplifier circuit

 #439
20200081684
2020-03-12

Semiconductor device and sound output device

 #440
20200076408
2020-03-05

Impedance tuner and signal amplification device

 #441
20200076391
2020-03-05

Power amplifier self-heating compensation circuit

 #442
20200076376
2020-03-05

Envelope tracking circuit and related power amplifier apparatus

 #443
20200076375
2020-03-05

Envelope tracking circuit and related power amplifier apparatus

 #444
20200076373
2020-03-05

Distributed feed-forward envelope tracking system

 #445
20200076297
2020-03-05

PWM DC-DC converter with linear voltage regulator for DC assist

 #446
20200067477
2020-02-27

Energy efficient clip limiting voltage controlled amplifier

 #447
20200067456
2020-02-27

Bias circuit and power amplification circuit

 #448
20200066892
2020-02-27

Monolithic microwave integrated circuits having both enhancement-mode and depletion mode transistors

 #449
20200059213
2020-02-20

Amplifier circuit and transimpedance amplifier circuit

 #450
20200059199
2020-02-20

Amplification circuit

 #451
20200058436
2020-02-20

High-frequency module

 #452
20200052662
2020-02-13

Power amplifier with a tracking power supply

 #453
20200052661
2020-02-13

Amplifiers and related integrated circuits

 #454
20200052660
2020-02-13

Loadline switchable push/pull power amplifier

 #455
20200052658
2020-02-13

Power amplifier circuit

 #456
20200052651
2020-02-13

Power amplifier device with improved response speed

 #457
20200044613
2020-02-06

Impedance circuit and bias circuit

 #458
20200044610
2020-02-06

Power supply signal generation

 #459
20200044609
2020-02-06

Variable power amplifier bias impedance

 #460
20200036361
2020-01-30

Acoustic wave device, high frequency front end circuit, and communication apparatus

 #461
20200036355
2020-01-30

Audio signal muting apparatus, and digital signal conversion apparatus equipped with same

 #462
20200036346
2020-01-30

AMPLIFIER WITH A SYMMETRIC CURRENT PROFILE

 #463
20200036340
2020-01-30

Power amplifier

 #464
20200036339
2020-01-30

POWER AMPLIFIER CIRCUIT WITH DIVERTING CURRENT PATH

 #465
20200036334
2020-01-30

Broadband high power amplifier

 #466
20200035442
2020-01-30

Robust and precise synchronization of microwave oscillators to a laser oscillator in pulsed electron beam devices

 #467
20200028477
2020-01-23

Bias circuit for high efficiency complimentary metal oxide semiconductor (CMOS) power amplifiers

 #468
20200028470
2020-01-23

Amplifier comprising two parallel coupled amplifier units

 #469
20200028469
2020-01-23

Apparatus and method for calibrating characteristics of power amplifier in transmitter

 #470
20200021254
2020-01-16

LOW NOISE AMPLIFIER WITH IMPROVED ABSOLUTE MAXIMUM RATING PERFORMANCE

 #471
20200020645
2020-01-16

Circuit module

 #472
20200020474
2020-01-16

RF damping structure in inductive device

 #473
20200014417
2020-01-09

Integrated RF front end with stacked transistor switch

 #474
20200014334
2020-01-09

Power amplification circuit

 #475
20200014332
2020-01-09

Amplifier linearity boost circuits and methods for post distortion feedback cancelation

 #476
20190393845
2019-12-26

Power amplifier circuit

 #477
20190391608
2019-12-26

POWER MULTIPLEXER SYSTEM FOR CURRENT LOAD MIGRATION

 #478
20190386690
2019-12-19

Intrinsically linear, digital power amplifier employing nonlinearly-sized RF-DAC, multiphase driver, and overdrive voltage control

 #479
20190386638
2019-12-19

Acoustic wave device, high frequency front end circuit, communication apparatus, and manufacturing method for acoustic wave device

 #480
20190386621
2019-12-19

RF transceiver front end module with improved linearity

 #481
20190386618
2019-12-19

Amplification circuit

 #482
20190379408
2019-12-12

Mixed-mode millimeter-wave transmitter

 #483
20190379330
2019-12-12

Body tie optimization for stacked transistor amplifier

 #484
20190371895
2019-12-05

Gallium nitride power amplifier integration with metal-oxide-semiconductor devices

 #485
20190371792
2019-12-05

Monolithic single chip integrated radio frequency front end module configured with single crystal acoustic filter devices

 #486
20190363697
2019-11-28

Acoustic wave device, high-frequency front-end circuit, and communication device

 #487
20190356296
2019-11-21

Acoustic wave device, radio-frequency front end circuit, and communication device

 #488
20190356288
2019-11-21

Power amplifier circuit

 #489
20190356284
2019-11-21

Broadband power transistor devices and amplifiers and methods of manufacture thereof

 #490
20190356283
2019-11-21

Amplifier device

 #491
20190356281
2019-11-21

Power amplifier

 #492
20190356276
2019-11-21

Power amplifier

 #493
20190348969
2019-11-14

Signal switching systems and modules and devices using same

 #494
20190348959
2019-11-14

Gain stabilization for supply modulated RF and microwave integrated circuits

 #495
20190348955
2019-11-14

Bias modulation active linearization for broadband amplifiers

 #496
20190348954
2019-11-14

Power amplification module, method for controlling power amplification module, and high-frequency front end circuit

 #497
20190341960
2019-11-07

Hybrid coupler based T/R switch

 #498
20190341948
2019-11-07

ASCERTAINING AN OPERATING POINT OF A NON-LINEAR POWER AMPLIFIER

 #499
20190341895
2019-11-07

Amplifier system with digital switched attenuator

 #500
20190334504
2019-10-31

High order miller N-path filter

 #501
20190334480
2019-10-31

Symbol power tracking amplification system and a wireless communication device including the same

 #502
20190326863
2019-10-24

Power amplifier

 #503
20190326861
2019-10-24

Digital pre-distortion for an AB amplifier

 #504
20190326095
2019-10-24

Modular high-frequency source

 #505
20190319720
2019-10-17

APPARATUS AND METHODS OF CALIBRATING A POWER AMPLIFIER SYSTEM TO COMPENSATE FOR ENVELOPE AMPLITUDE MISALIGNMENT

 #506
20190319607
2019-10-17

Signal switching systems and electronic devices using same

 #507
20190319597
2019-10-17

Active device which has a high breakdown voltage, is memory-less, traps even harmonic signals and circuits used therewith

 #508
20190319590
2019-10-17

Predistorter for compensating linearity of an amplifier

 #509
20190319588
2019-10-17

Harmonic suppression method, corresponding low-noise amplifier, and communication terminal

 #510
20190319584
2019-10-17

Low modulation bandwidth envelope tracking circuit

 #511
20190312557
2019-10-10

WIDE-BAND AMPLIFIERS USING CLIPPER CIRCUITS FOR REDUCED HARMONICS

 #512
20190312554
2019-10-10

Power amplifier circuit

 #513
20190312327
2019-10-10

Waveguide transitions for power-combining devices

 #514
20190312027
2019-10-10

Monolithic single chip integrated radio frequency front end module configured with single crystal acoustic filter devices

 #515
20190305739
2019-10-03

Amplifying circuit including miller compensation circuit

 #516
20190288647
2019-09-19

Pulse width distortion cancellation of a switching mode amplifier for reduced second harmonic interference

 #517
20190288646
2019-09-19

Power amplifier for millimeter wave devices

 #518
20190280687
2019-09-12

Gate voltage control circuit of insulated gate bipolar transistor and control method thereof

 #519
20190273480
2019-09-05

LAMB WAVE LOOP CIRCUIT FOR ACOUSTIC WAVE FILTER

 #520
20190273479
2019-09-05

Lamb wave resonator and other type of acoustic wave resonator included in one or more filters

 #521
20190273478
2019-09-05

Lamb wave element and bulk acoustic wave resonator on common substrate

 #522
20190273475
2019-09-05

Apparatus and methods for low noise amplifiers

 #523
20190273474
2019-09-05

Biasing method without using thermal compensation applicable for both class-A and class-AB audio power amplifier

 #524
20190273470
2019-09-05

CURRENT CONTROL USING POWER CELL ISOLATION

 #525
20190267955
2019-08-29

Method and a device for detecting oscillation and signal coupling device

 #526
20190267950
2019-08-29

Adaptive multiband power amplifier apparatus

 #527
20190267949
2019-08-29

Amplifier device

 #528
20190267948
2019-08-29

Power control circuit and power amplifier circuit

 #529
20190260400
2019-08-22

Power amplification module

 #530
20190260336
2019-08-22

Thermal protection of an amplifier driving a capacitive load

 #531
20190253027
2019-08-15

Continuous-mode harmonically tuned power amplifier output networks and systems including same

 #532
20190252368
2019-08-15

Semiconductor device

 #533
20190245496
2019-08-08

Wide modulation bandwidth radio frequency circuit

 #534
20190245491
2019-08-08

TDD TRANSMIT-RECEIVE FRONT END CIRCUIT WITHOUT A RF T-R SWITCH

 #535
20190245488
2019-08-08

Resistorless power amplifier

 #536
20190238172
2019-08-01

RF switch

 #537
20190238164
2019-08-01

Demultiplexing apparatus and method of designing the apparatus

 #538
20190238106
2019-08-01

Active cross-band isolation for a transformer-based power amplifier

 #539
20190238105
2019-08-01

Gallium nitride (GaN) power amplifiers (PA) with angled electrodes and 100 CMOS and method for producing the same

 #540
20190238098
2019-08-01

Load modulation amplifier

 #541
20190238096
2019-08-01

Consecutive Doherty amplifier

 #542
20190229687
2019-07-25

Power amplifier and wireless communication device

 #543
20190229681
2019-07-25

Power amplifier module

 #544
20190229680
2019-07-25

Distortion compensation circuit

 #545
20190229608
2019-07-25

System and method for reducing output harmonics

 #546
20190222178
2019-07-18

Envelope tracking voltage tracker circuit and related power management circuit

 #547
20190214948
2019-07-11

In-situ low-cost small size sensing and measurement for wireless power transfer systems

 #548
20190214494
2019-07-11

Compound semiconductor device and fabrication method

 #549
20190207635
2019-07-04

Digital offset frequency generator based radio frequency transmitter

 #550
20190207577
2019-07-04

Multi-gain mode power amplifier, chip, and communication terminal

 #551
20190207530
2019-07-04

POWER SUPPLY CIRCUIT

 #552
20190199303
2019-06-27

Bias circuit and power amplifier circuit

 #553
20190199300
2019-06-27

Load-adaptive class-G amplifier for low-power audio applications

 #554
20190199297
2019-06-27

Band-reconfigurable and load-adaptive power amplifier

 #555
20190199291
2019-06-27

Power amplifying apparatus having bias boosting structure with improved linearity

 #556
20190190490
2019-06-20

Acoustically coupled resonator notch and bandpass filters

 #557
20190190453
2019-06-20

Power amplifier for millimeter wave devices

 #558
20190181907
2019-06-13

System and method for a radio frequency filter

 #559
20190181839
2019-06-13

System and method for a radio frequency filter

 #560
20190181837
2019-06-13

System and method for a radio frequency filter

 #561
20190181836
2019-06-13

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

 #562
20190181835
2019-06-13

Acoustically coupled resonator notch and bandpass filters

 #563
20190181834
2019-06-13

Acoustically coupled resonator notch and bandpass filters

 #564
20190181832
2019-06-13

System and method for a radio frequency filter

 #565
20190181827
2019-06-13

Tunable resonator element, filter circuit and method

 #566
20190181825
2019-06-13

System and method for a radio frequency filter

 #567
20190181824
2019-06-13

Tunable resonator element, filter circuit and method

 #568
20190181820
2019-06-13

Switch for controlling a gain of an amplifier and method thereof

 #569
20190181816
2019-06-13

Power amplifier module

 #570
20190181814
2019-06-13

Power amplification device and television signal transmission system

 #571
20190181813
2019-06-13

Low noise amplifier circuit

 #572
20190181808
2019-06-13

Power amplifier circuit

 #573
20190181804
2019-06-13

Wide-bandwidth envelope tracking circuit

 #574
20190181803
2019-06-13

Envelope tracking amplifier circuit

 #575
20190181106
2019-06-13

Packaged RF power amplifier

 #576
20190173434
2019-06-06

RF power transistor circuits

 #577
20190165752
2019-05-30

Band pass filter

 #578
20190165736
2019-05-30

Envelope trackers providing compensation for power amplifier output load variation

 #579
20190165733
2019-05-30

High efficiency ultra-wideband amplifier

 #580
20190158045
2019-05-23

Power amplifier modules including transistor with grading and semiconductor resistor

 #581
20190158039
2019-05-23

Power amplifier module

 #582
20190158032
2019-05-23

Amplifier and electronic circuit

 #583
20190150100
2019-05-16

High-frequency signal processing apparatus and wireless communication apparatus

 #584
20190140596
2019-05-09

Power amplification module

 #585
20190140543
2019-05-09

Switching audio amplifier

 #586
20190131937
2019-05-02

High-frequency power amplifier

 #587
20190131933
2019-05-02

Power amplifier system and learning-based autotuning method thereof

 #588
20190123702
2019-04-25

METHODS OF ADJUSTING BAND-BASED AMPLIFIER LINEARITY

 #589
20190122957
2019-04-25

Amplification apparatus

 #590
20190115872
2019-04-18

Envelope tracking current bias circuit and power amplifying device

 #591
20190115457
2019-04-18

Heterojunction bipolar transistor

 #592
20190109565
2019-04-11

Power amplifier module

 #593
20190109222
2019-04-11

Semiconductor devices having a plurality of unit cell transistors that have smoothed turn-on behavior and improved linearity

 #594
20190109066
2019-04-11

Power amplifier module

 #595
20190103842
2019-04-04

Modified three-stage doherty amplifier

 #596
20190103841
2019-04-04

Power amplification circuit

 #597
20190101325
2019-04-04

Multifunctional radio frequency systems and methods for UV sterilization, air purification, and defrost operations

 #598
20190097592
2019-03-28

Low parasitic capacitance low noise amplifier

 #599
20190097590
2019-03-28

Power amplification circuit

 #600
20190089365
2019-03-21

Amplifier circuitry, ad converter, and wireless communication device