High current low-cost DC coupled DAC follower low pass filter headphone amplifier

Radio frequency filter, radio frequency front-end circuit, communication device, and design method for radio frequency filter

Switchless line-DI/Mic pre-amplifier input

Pre-amplifier circuit including microphone pre-amplifier stage

Systems and methods for optimizing amplifier operations

Power amplifier module

Power amplification system with envelope-based bias

Compensating amplifier phase in a diversity receiver front end

Transmitter, signal synthesis circuit, and signal synthesis method

Power amplification circuit

High-gain low noise figure complementary metal oxide semiconductor amplifier with low current consumption

Power amplification module

Power amplification circuit

Power amplifier module

Integrated circuit

Amplifier

DIGITAL-TO-RF POWER CONVERTER

Power amplifier having selective signal paths

Adaptive power amplifier and radio frequency transmitter thereof

Multi-Frequency tunable low noise amplifier and multi-frequency tuning implementation method therefor

Method and apparatus for improving signal quality in electronic device

BIAS CIRCUIT FOR RADIO-FREQUENCY AMPLIFIER

Power amplification circuit

High-frequency signal amplifier circuit, power amplifier module, front-end circuit, and communication apparatus

Power amplification module

Multi-mode stacked amplifier

Circuit

Amplifier used to improve operational performance under bypass mode

Dual output RF LNA

Frequency and back-off reconfigurability in mm-wave power amplifiers

Power amplification circuit

Regeneration circulator, high-frequency power supply device, and high-frequency power regeneration method

High power MMIC devices having bypassed gate transistors

Method and apparatus for adjusting the timing of radio antenna tuning

Power amplifier with input power protection circuits

Ultra compact multi-band transmitter with robust AM-PM distortion self-suppression techniques

Power amplifier modules with bonding pads and related systems, devices, and methods

Power amplifier matching circuit with DVCs

Power amplifier module

Cascode amplifier having feedback circuits

Power amplifier

High and low voltage limited power amplification system

Dynamic error vector magnitude compensation

Heterojunction bipolar transistor

Phase shift circuit, phased array device, and phase control method

Integrated RF front end with stacked transistor switch

Method for performing communication and electronic device supporting same

Multiplexed multi-stage low noise amplifier uses gallium arsenide and CMOS dice

Power amplifier

Power amplification circuit

Apparatus and methods for envelope tracking systems

Output matching of power amplifiers

Switched amplifiers

Power amplification module

Noise cancellation in amplifier systems

Amplifier with base current reuse

Systems and methods for ring-oscillator based operational amplifiers for scaled CMOS technologies

Harvesting power from ambient energy in an electronic device

Field effect transistor (FET) structure with integrated gate connected diodes

Multi-mode power amplifier module

Circuits for providing Class-E power amplifiers

Impedance transformation circuit for amplifier

Reducing power amplifier gain drift during a data burst

Advanced amplifier system for ultra-wide band RF communication

Power amplification module

Apparatus and methods for envelope shaping in mobile devices

Class E2 amplifier

Broadband power amplifier systems and methods

Power amplification module

Power amplification circuit

Doherty amplifier

Low dropout voltage regulator for highly linear radio frequency power amplifiers

Power amplifier circuit

High-gain low noise figure complementary metal oxide semiconductor amplifier with low current consumption

Apparatus and methods for power amplifier biasing

Band-based amplifier linearity adjustment

Matching network circuit and radio-frequency power amplifier with odd harmonic rejection and even harmonic rejection and method of adjusting symmetry of differential signals

Broadband radio frequency power amplifiers, and methods of manufacture thereof

Cascode power amplifier with switchable output matching network

Mismatch detection using replica circuit

Power amplifier and gain switching circuit thereof

Pre-amplifier for magnetic resonance imaging radio-frequency coil

Bias control for stacked transistor configuration

Distortion correction in cascode power amplifiers

Dual operation mode power amplifier

Protection circuit for power amplifier

High-frequency modules

Amplifier

Solder bump placement for grounding in flip chip amplifiers

Direct substrate to solder bump connection for thermal management in flip chip amplifiers

Solder bump placement for emitter-ballasting in flip chip amplifiers

Output impedance matching circuit for RF amplifier devices, and methods of manufacture thereof

Solder bump placement for thermal management in flip chip amplifiers

Modifiable signal adjustment devices for power amplifiers and corresponding methods and apparatus

Active drain terminated distributed amplifier

RF FRONT END ARCHITECTURES

Power amplifier module

Methods of calibrating a power amplifier system to compensate for envelope amplitude misalignment

Apparatus and methods for biasing of power amplifiers

Method and system for providing automatic gate bias and bias sequencing for field effect transistors

Apparatus and methods for capacitive load reduction in a mobile device

Power amplifier module

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

Power amplification module

Encapsulated semiconductor device package with heatsink opening, and methods of manufacture thereof

Active device and circuits used therewith

Phase shift and attenuation circuits for use with multiple-path amplifiers

Low noise amplifier circuit

High efficiency ultra-wideband amplifier

Amplifier with feedback circuit

Mismatch Detection using Replica Circuit

Linearizer and radio frequency power amplifier using same

Supervisory control of radio frequency (RF) impedance tuning operation

Dual band transmitter

Apparatus and methods for envelope tracking systems

COMBINED IMPEDANCE MATCHING AND RF FILTER CIRCUIT

Power amplifier having biasing with selectable bandwidth

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

Power amplification system with programmable load line

Dynamic error vector magnitude duty cycle correction

Diversity receiver front end system with amplifier phase compensation

Balun transformer

LINEARIZING CIRCUIT AND METHOD FOR AMPLIFIER

Power amplification module

Integrated RF front end system

Matching network for load line change

Apparatus and methods for tunable power amplifiers

Power amplification circuit and transmitter

Flip-chip amplifier with termination circuit

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

Apparatus and methods for power amplifiers with phase compensation

Integrated directional coupler within an RF matching network

Amplifiers and related integrated circuits

Phase correction in a Doherty power amplifier

Method for controlling an RF generator

High efficiency resonant power converters and resonant gate drivers

Power amplification module

Method for controlling an RF generator

POWER AMPLIFYING APPARATUS AND METHOD FOR CONTROLLING POWER AMPLIFYING APPARATUS

Power amplifier device with controlled envelope tracking modulator and adapted static voltage

Multi-band power amplifier

Power amplifier module

Combined output matching network and filter for power amplifier with concurrent functionality

Apparatus and methods for power amplifier output matching

Distributed output matching network for a radio frequency power amplifier module

Power amplification module

Adjusting power amplifier stimuli based on output signals

Multi-mode integrated front end module

Semiconductor integrated circuit, communication module, and smart meter

Apparatus and methods for envelope shaping in power amplifier systems

High-frequency amplifier

Dynamic tuning of a transformer-based radio frequency power amplifier

Frequency tuning of narrowband low noise amplifiers

Power amplifier and method

Apparatus and methods for power amplifier bias circuits

Copper wire interface circuit

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

Devices and methods for improving yield of scalable periphery amplifiers

Amplifier

Low noise amplifier

Multi-band/multi-mode power amplifier with signal path hardware sharing

Integrated CMOS transmit/receive switch in a radio frequency device

Transmit-receive isolation in a transformer-based radio frequency power amplifier

Logarithmic detector amplifier system in open-loop configuration for use as high sensitivity selective receiver without frequency conversion

Method for automatic impedance matching and corresponding transmission channel

Semiconductor packages having wire bond wall to reduce coupling

Inverse class F amplifiers with intrinsic capacitance compensation

Systems and methods for optimizing amplifier operations

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

Optimization methods for amplifier with variable supply power

Phase-switched impedance modulation amplifier

Tunable matching network with phase-switched elements

Apparatus and methods for a capacitive digital-to-analog converter based power amplifier

Balanced Doherty power amplifier circuit and radio transmitter

Amplifier dynamic bias adjustment for envelope tracking

Amplifier dynamic bias adjustment for envelope tracking

Linear row array integrated power combiner for RF power amplifiers

Integrated matching circuit for a high frequency amplifier

Multi-broadband doherty power amplifier

Power amplifier for amplifying radio frequency signal

High frequency amplifier

Diversity receiver front end system with tunable output matching circuit

Broadband radio frequency power amplifiers, and methods of manufacture thereof

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

Semiconductor amplifier bias circuit and semiconductor amplifier device

Apparatus and methods for capacitive load reduction of an envelope tracker

Mismatch detection using replica circuit

Circuits and methods for reducing supply sensitivity in a power amplifier

Two-stage electromagnetic induction transformer

Electronic circuits including a MOSFET and a dual-gate JFET

Apparatus and methods for calibration of envelope trackers

Transmission line driver circuit for adaptively calibrating impedance matching

Automatic impedance matching using true power information

Scalable periphery tunable matching power amplifier

Apparatus and methods for power amplifiers

Multi-band low noise amplifier

Semiconductor amplifier

Cascode power amplifier with voltage limiter

Radio-frequency amplifier circuit and control voltage setting method for radio-frequency amplifier circuit

Bias adjustment circuitry for balanced amplifiers

Dynamic bias current adjustment for power amplifiers

Systems, circuits and methods related to low power efficiency improvement in multi-mode multi-band power amplifiers

Doherty power amplifying circuit and power amplifier

Power amplifier

Buffer amplifier and trans-impedance amplifier including the same

Method and apparatus for a multi-harmonic matching network

Power amplifier having a common input and a plurality of outputs

Switchable feedback circuit for radio-frequency power amplifiers

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

Broadband power amplifier having high efficiency

Apparatus and methods for power amplifier output matching

TWO DIMENSIONAL INTEGRATED POWER COMBINER FOR RF POWER AMPLIFIERS

TEMPERATURE COMPENSATED CIRCUITS FOR RADIO-FREQUENCY DEVICES

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

Power amplifier bias circuit having parallel emitter follower

Resonating filter and method thereof

Apparatus and method for load modulating an amplifier

Wireless communication device, method and power amplifier of the same

Linearizer

Linearizer

CASCODE AMPLIFIER

Method for high-frequency amplifier using power gain-boosting technique

Radio frequency amplifying circuit and power amplifying module

Radio frequency power amplifier including a pulse generator and matching network circuit

Mismatch detection using replica circuit

Apparatus and methods for envelope trackers

Broadband power amplifier systems and methods

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

High-frequency amplifier circuit

Power amplifier circuit for communication systems

Power amplification module

Bias control for stacked transistor configuration

Amplifier circuit

Power amplifier module

TRANSMITTING DEVICE AND ASSOCIATED TRANSMITTING METHOD FOR POWER EFFICIENCY ENHANCEMENT

Adjustable harmonic filtering device

Wireless communication device, method and power amplifier of the same

Transmitting amplifier and transmitter

Power amplifier module

Three-dimensional power amplifier architecture

Circuit

Power amplifier

Amplifier

Feedback and impedance circuits, devices and methods for broadband radio-frequency amplifiers

Concurrent multi-band radio frequency amplifying circuit

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

Quadrature modulator

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

Power amplifier module

Amplifier device and corresponding radio base station and mobile communication terminal

Power amplification circuit and power amplification module

ADAPTIVE RECEIVER/TRANSMITTER AMPLIFIER CIRCUIT

Baseband envelope predistorter

Tunable loadline

Power amplifying module

Enhancing isolation and impedance matching in hybrid-based cancellation networks and duplexers

Amplifier circuit

Packaged RF power transistor device having next to each other a ground and a video lead for connecting a decoupling capacitor, RF power amplifier

Amplifying system

Apparatus and methods for calibrating envelope trackers

RF amplifier operational in different power modes

Power amplifier with self aligned peaking stage

High efficiency radio frequency power amplifier circuitry with reduced distortion

Amplifier circuit

Overstress management for power amplifiers

RF power amplifier and operating method thereof

Multi-mode power amplifier and mobile communication terminal having the same

Devices and methods for improving yield of scalable periphery amplifiers

Methods and devices for testing segmented electronic assemblies

Multimode power amplifier bias circuit with selectable bandwidth

Doherty amplifier

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

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

Impedance matching system that has a transformer and method for tuning a system using a transformer

Amplifier

Weakly coupled RF network based power amplifier architecture

Methods and devices for thermal control in power amplifier circuits

Methods and devices for impedance matching in power amplifier circuits

Semiconductor device

RF power transmission, modulation, and amplification, including direct cartesian 2-branch embodiments

Output match directional coupler

Filtering characteristic adjustments of weakly coupled tunable RF filters

Dynamic error vector magnitude duty cycle correction

Reconfigurable power amplifier for improved low-power efficiency

High efficiency voltage mode class D topology

Device and method for bias control of class A power RF amplifier

High frequency circuit and high frequency module including the same

High-frequency power amplifier

Electronic circuits including a MOSFET and a dual-gate JFET

Combiner circuit for a class-E outphasing power amplifier

Apparatus and method for amplifying a radio-frequency signal

Matching techniques for wide-bandgap power transistors

Power amplifier architectures with input power protection circuits

Radio frequency composite Class-S power amplifier having discrete power control

Apparatus and methods for wide local area network power amplifiers

Doherty amplifier

Semiconductor packages having wire bond wall to reduce coupling

MMIC power amplifier