Active device and circuits used therewith

Apparatus for and method of a supply modulator for a power amplifier

Power supplies

Linearization circuit for a multiple-stage RF power amplifier

Embedded speaker protection for automotive audio power amplifier

RF amplifier having a transition shaping filter

High efficiency ultra-wideband amplifier

Mismatch Detection using Replica Circuit

Mixer impairment correction based on volterra series

Dual band transmitter

Apparatus and methods for envelope tracking systems

PROTECTION CIRCUIT FOR POWER AMPLIFIER

Adaptive self-bias

Weighted memory polynomial method and system for power amplifiers predistortion

Power amplifier module

Operational amplifier with class AB output

Dynamic bias modulator with multiple output voltage converter and power amplification apparatus using the same

Method of packaging a power amplifier module having a unified pattern and ceramic sidewall

Supply modulators with voltage and frequency partitioning

Boosting amplifier gain without clipping signal envelope

Bias circuits and methods for depletion mode semiconductor devices

Amplifier system and device

Compression control of cascode power amplifiers

Systems and methods for thermal management for telecommunications enclosures using heat pipes

Power supply apparatus for power amplifier

Process-compensated HBT power amplifier bias circuits and methods

Interference cancellation relay device

Active compensation for power amplifier gain droop

Dual-band signal transmission

Dynamic bias control

Tunable power amplifier with wide frequency range

Amplifier arrangement

Power amplifier modules including tantalum nitride terminated through wafer via and related systems, devices, and methods

Power amplifier modules with harmonic termination circuit and related systems, devices, and methods

Power amplifier modules with power amplifier and transmission line and related systems, devices, and methods

Temperature compensation technique for envelope tracking system

Power amplifier module

Biasing circuitry

Semiconductor device and method of manufacturing semiconductor device

Audio apparatus, and current control method

Variable frequency circuit in attenuator and/or negative voltage generator

Amplifiers and related integrated circuits

Power amplifier without a transformer

Impedance synthesis for optimum frequency response of a radio frequency (RF) amplifier

Method and system for linearizing a radio frequency power amplifier

Transistor package, amplification circuit including the same, and method of forming transistor

Method for improving circuit stability

Power amplifier

Corona ignition with self-tuning power amplifier

Electrical signal amplifier, circuit arrangement and method

High gain RF power amplifier with negative capacitor

Arrangement and method for radio-frequency (RF) high power generation for compensating a failed power amplifier module

Magnetic structures for filtering amplifier outputs

RF power amplifiers with diode linearizer

High efficiency resonant power converters and resonant gate drivers

Power amplification module

Arrangement and method for radio-frequency (RF) high power generation

IMPROVED MATCHING TECHNIQUES FOR WIDE-BANDGAP POWER TRANSISTORS

Power amplifier and method for limiting current in power amplifier

Power amplification module

POWER AMPLIFYING APPARATUS AND METHOD FOR CONTROLLING POWER AMPLIFYING APPARATUS

COMPOUND SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME

Implementation method and device of multi-bit modulation-based digital speaker system

Compound semiconductor device and method of manufacturing the same

Hot carrier injection compensation

Semiconductor device and method of manufacturing semiconductor device

Open loop digital PWM envelope tracking system with dynamic boosting

Power supply method and device for radio-frequency power amplifier

Power amplification module

Voltage detecting circuit and power amplifier

Power amplifier

Power amplifier

Embedded speaker protection for automotive audio power amplifier

Power amplifier and phase correction method therefor

WIRELESS COMMUNICATION DEVICE

Differential power amplifier for mobile cellular envelope tracking

Systems and methods for improved power yield and linearization in radio frequency transmitters

Apparatus and methods for envelope shaping in power amplifier systems

Output matching network for differential power amplifier

Multistage differential power amplifier having interstage power limiter

Using fractional delay computations to improve intermodulation performance

Multi-level switching regulator circuits and methods with finite state machine control

Compensation parameter and predistortion signal

IMPEDANCE TRANSFORMER FOR ANTENNA MULTIPLEXING

RF amplification device with power protection during high supply voltage conditions

Control systems and methods for power amplifiers operating in envelope tracking mode

Input driver for power amplifier and transmitter

Quick-start high-voltage boost

Reconfigurable power amplifier capable of selecting wide band frequency and method for selecting wide band frequency

Method for amplifying a signal and amplifying device

Apparatus and method for adjusting envelope signal delay in envelope-tracking power amplifier

MULTIBAND RF DEVICE

Method for automatic impedance matching and corresponding transmission channel

Driver circuit and associated power amplifier assembly, radio base station and method

Amplifier bias circuit

Peak detecting cascode for breakdown protection

Semiconductor device comprising a bipolar transistor

Intrinsically safe audio power current circuit and device using same

Compression control through amplitude adjustment of a radio frequency input signal

Compression control through power amplifier voltage adjustment

Compression control through power amplifier load adjustment

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

Optimization methods for amplifier with variable supply power

SYSTEMS AND METHODS FOR EFFICIENT MULTI-CHANNEL SATCOM WITH DYNAMIC POWER SUPPLY AND DIGITAL PRE-DISTORTION

Phase-switched impedance modulation amplifier

Tunable matching network with phase-switched elements

POWER AMPLIFIER

Method and apparatus for correcting inconvenient power amplifier load characteristics in an envelope tracking based system

Envelope tracking with reduced circuit area and power consumption

Envelope tracking path delay fine tuning and calibration

Method, apparatus and system for envelope tracking

Amplifier dynamic bias adjustment for envelope tracking

Amplifier dynamic bias adjustment for envelope tracking

Self setting power supply using negative output impedance

Amplifier having enhanced power efficiency

Envelope tracking system with internal power amplifier characterization

Linear row array integrated power combiner for RF power amplifiers

Power amplifier for amplifying radio frequency signal

Bias circuit for use with amplifier circuit, control method thereof, and signal amplifier

Supply modulation for radio frequency power amplification

LAMINATE RF CHOKE FOR FLIP-CHIP POWER AMPLIFIER

Distortion compensation apparatus and wireless communication apparatus

Bias circuit and power amplifier having the same

BIAS-BOOSTING CIRCUIT WITH DUAL CURRENT MIRRORS FOR RF POWER AMPLIFIER

Power amplifier

Power amplifier

Class AB amplifier with programmable quiescent current

Systems for multi-peak-filter-based analog self-interference cancellation

Apparatus and method for controlling impedance tuning by using hybrid control algorithm

Weighted memory polynomial method and system for power amplifiers predistortion

Transfer function regulation

Distortion-compensating power amplifier and method for compensating for distortion to amplify power

Predistortion in radio frequency transmitter

Amplification of a radio frequency signal

Power density matching for power amplifiers

Baseband equivalent volterra series for behavioral modeling and digital predistortion of wideband transmitters

Mismatch detection using replica circuit

Method for compensating a power amplification unit of a wireless RF module

T-shaped power amplifier cooling plate

Front-end module and coupling compensation for closed-loop digital pre-distortion system

Band-reconfigurable and load-adaptive power amplifier

Apparatus and methods for calibration of envelope trackers

Aggregate signal amplification device and method

Linearity and noise improvement for multilevel power amplifier systems using multi-pulse drain transitions

Voltage-to-current converter

Automatic impedance matching using true power information

Digital multi-level envelope tracking for wide-bandwidth signals

Delay adjustment

Schottky enhanced bias circuit

Tunable Envelope Tracking

Wideband self-envelope tracking RF power amplifier

Apparatus and methods for power amplifiers

Amplifier apparatus with controlled negative output impedance

Baseband equivalent volterra series for digital predistortion in multi-band power amplifiers

Apparatus and method for digital pre-distortion in wireless communication system

Power amplifier

Power amplifier

Bipolar transistor

Systems and methods for performing power amplifier bias calibration

Circuit for reducing slope magnitude during increasing and decreasing voltage transitions

System and method for power amplifier over-voltage protection

RF power transistor circuits

Power detector and associated method for eliminating the difference of I-V phase difference between transmission path and detection path

Inverter type power amplifier

Receivers for digital predistortion

Method and apparatus for supplying power to a radio frequency power amplifier

RF amplifier having a transition shaping filter

Apparatus and methods for controlling transmit power of a wireless communication system

DISPLACEMENT CURRENT COMPENSATION CIRCUIT

Radio-frequency high power amplifier with broadband envelope tracking by means of reversed buck converter

Tunable power amplifier with wide frequency range

Adaptive envelope tracking for biasing radio frequency power amplifiers

Output stage for class AB amplifier

Dynamic bias current adjustment for power amplifiers

Systems and methods for increasing the effectiveness of digital pre-distortion in electronic communications

Amplifier control systems and methods

Power amplifier with termination circuit and resonant circuit

Multiband-support radio-frequency module

Method and device for controlling a power amplifier configured to use nonlinearity correction and a power amplifier system

Switched capacitor transmitter circuits and methods

Switched capacitor transmitter circuits and methods

Switchable base feed circuit for radio-frequency power amplifiers

Power amplifier having a common input and a plurality of outputs

Integrated passive device assemblies for RF amplifiers, and methods of manufacture thereof

POWER AMPLIFIER AND CLASS AB POWER AMPLIFIER

Systems and methods utilizing adaptive envelope tracking

Apparatus and methods for power amplifier output matching

Apparatus and methods power amplifier biasing

Mutual Coupling Inductor Based Ultra-Wideband Power Amplifier And Design Method Thereof

Hybrid power amplifier having electrical and thermal conduction path

Power amplifier bias circuit having parallel emitter follower

REVERSE BLOCKING APPARATUS FOR ELECTRONIC DEVICE AND SWITCH APPARATUS INCLUDING THE SAME

CASCODE AMPLIFIER

Low power multi-stacked power amplifier

RF transceiver front end module with improved linearity

System and method for null filling of IQ waveform

Transmit circuit, method for adjusting a bias of a power amplifier and method for adapting the provision of a bias information

High efficiency linearization power amplifier for wireless communication

Method for class-B amplifier mismatch correction

Radio frequency amplifying circuit and power amplifying module

Apparatus and method for controlling power amplifier bias

Radio frequency power amplifier non-linearity compensation

Cascode power amplifier

Hybrid power module

Power amplifier modules with bifet and harmonic termination and related systems, devices, and methods

Power amplifier modules including bipolar transistor with grading and related systems, devices, and methods

Power amplifier modules including wire bond pad and related systems, devices, and methods

High frequency amplifier and method of compensating for distortion

Power amplifier with envelope injection

Radio frequency power amplifier and method for increasing power added efficiency and linearity

Embedded speaker protection for automotive audio power amplifier

Wireless transmission apparatus and distortion compensation method

Differential cascode amplifier with selectively coupled gate terminals

Power amplifying radiator (PAR)

FM filtering for class-G/H headphones

Apparatus and methods for power amplifiers

Circuits and methods for biasing a power amplifier

Power amplifier circuit for communication systems

Systems and methods for increasing the effectiveness of digital pre-distortion in electronic communications

Phase-arrayed transceiver

Power amplifier circuit capable of adjusting gain dynamically

Power amplifier

Wireless transmission device

Hot carrier injection compensation

Envelope tracking push-pull or differential power amplifier

Apparatus and a method for providing a supply control signal for a supply unit

Modular spatially combined EHF power amplifier

DYNAMICALLY ADJUSTABLE POWER AMPLIFIER LOAD TUNER

Audio power amplifier

Power amplification module

Method and apparatus for partial envelope tracking in handheld and wireless computing devices

Distributed amplifier

Amplifier structure

RF switch with integrated tuning

AMPLIFICATION DEVICE AND RADIO COMMUNICATION APPARATUS EQUIPPED WITH AMPLIFICATION DEVICE

Microwave power amplification apparatus and method thereof

Technique for Extremely High Order IM Correction

PPA linearization

Adaptive bias circuit and power amplifier

Load current sensor for envelope tracking modulator

Harmonic rejection power amplifier

Bias circuits and methods for stacked devices

Power detector with overdrive detection

Distortion compensation circuit and transmission device using distortion compensation circuit and high-frequency power amplifier

Envelope tracking apparatus and method

Modulated supply stage with feedback to switched supply

Semiconductor devices, semiconductor device packages, and packaging techniques for impedance matching and/or low frequency terminations

Nonlinear class AB input stage

High frequency module

Systems and methods for increasing the effectiveness of digital pre-distortion in electronic communications

Three-dimensional power amplifier architecture

Distortion compensation apparatus and distortion compensation method

Analog feedback amplifier

System and method to remove heat from a power amplifier

Dynamic biasing of power amplifiers

Compact power detection circuit utilizing ground via coupling

DUAL-BAND DOHERTY COMBINER/IMPEDANCE TRANSFORMER CIRCUIT AND DOHERTY POWER AMPLIFIER INCLUDING THE SAME

Method and apparatus for adjusting peak power capability

Self-healing array system and method

RF amplifier having discrete supply voltages

POWER AMPLIFIER ENVELOPE TRACKING

High efficiency amplification

Method and system for crest factor reduction

Power amplifier module

GATE BIAS CONTROL CIRCUIT AND POWER AMPLIFYING DEVICE HAVING THE SAME

Systems and methods for using a digital power amplifier controller (DPAC) having foward-loop correction and feedback-loop correction

ADAPTIVE RECEIVER/TRANSMITTER AMPLIFIER CIRCUIT

Pseudo-envelope following power management system

Signal path termination

Linearity performance for multi-mode power amplifiers

Power amplifying module

Cascode amplifier

Power amplifier device for a magnetic resonance device and magnetic resonance device

Power amplifier with wide band AM-AM feedback and digital pre-distortion

Augmented twin nonlinear two-box modeling and predistortion method for power amplifiers and transmitters

Systems, circuits and methods related to multi-mode power amplifiers having improved linearity

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

Integrated power supply and modulator for radio frequency power amplifiers

Two-stage operational amplifier in class AB

AMPLIFIER, TRANSMITTER, AND AMPLIFICATION METHOD

Nonlinear load pre-distortion for open loop envelope tracking

Apparatus and methods for calibrating envelope trackers

Power amplifier

Wireless communication device

High efficiency radio frequency power amplifier circuitry with reduced distortion

Radio frequency signal amplifying system

Overstress management for power amplifiers

Doherty amplifier

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

Wideband driver amplifier

Reduced bandwith of signal in an envelope path for envelope tracking system

Distributed quality factor adjustment

Distributed pole-zero compensation for an amplifier

Methods and devices for thermal control in power amplifier circuits

Methods and devices for impedance matching in power amplifier circuits

Optimal envelope tracking reference waveform generation

Semiconductor device

CURRENT MODE CLASS AB LOW-NOISE AMPLIFIER AND METHOD OF ACTIVE CABLE TERMINATION

Using fractional delay computations to improve intermodulation performance

Amplifier