90-degree lumped and distributed Doherty impedance inverter

Power amplifier

Amplifier and transmitter

Broadband power transistor devices and amplifiers with input-side harmonic termination circuits and methods of manufacture

Common-mode loop controlled fully-differential adaptive class-A amplifier

Systems and methods to visually align signals using delay

Methods and apparatus for dynamic adjustment of amplifier gain

Apparatus and methods for removing a large-signal voltage offset from a biomedical signal

Signal switching systems and modules and devices using same

Coupler circuit with phase compensation function

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

Doherty power amplifier with integrated second harmonic injection

Power amplification apparatus, remote radio unit, and base station

Systems, apparatus, and methods for conveying biomedical signals between a patient and monitoring and treatment devices

Remotely-controlled distributed antenna system for railroad tunnels employing software defined amplifiers

System and method for bi-directional radio communication

ASCERTAINING AN OPERATING POINT OF A NON-LINEAR POWER AMPLIFIER

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

Compositions of influenza hemagglutinin with heterologous epitopes and/or altered maturation cleavage sites and methods of use thereof

Equalization of frequency-dependent gain

Amplifier system with digital switched attenuator

Power amplifier, radio remote unit, and base station

RF power amplifier with frequency selective impedance matching network

Power amplifier module

Automated envelope tracking system

Reconfigurable low-noise amplifier (LNA)

SYMBOL POWER TRACKING AMPLIFICATION SYSTEM AND A WIRELESS COMMUNICATION DEVICE INCLUDING THE SAME

Image distortion correction in a wireless terminal

Radio-frequency transceiver front-end circuit

Front-end systems with directional couplers and a shared back switch

Transmit and receive switch and broadband power amplifier matching network for multi-band millimeter-wave 5G communication

Time-interleaved charge sampler receiver

High order miller N-path filter

Amplifier with scalable impedance adjustments over gain modes

WIDE DYNAMIC RANGE AMPLIFIER SYSTEM

Power amplifier

Low noise amplifier circuit with multiple-input multiple-output (MIMO) structure

Driver amplifier with programmable single-ended and differential outputs

Methods for amplifying signals using a Doherty amplifier

Envelope tracking supply modulator topology for wipe-bandwidth radio frequency transmitter

HIGH POWER RADIO-FREQUENCY SWITCHING TOPOLOGY AND METHOD

Amplifiers and amplifier modules with ground plane height variation structures

Acoustic wave device with multi-layer piezoelectric substrate

Acoustic wave devices on stacked die

Boundary acoustic wave device

Control circuit for power amplifier

High-voltage power amplification system

Power amplifier

Digital pre-distortion for an AB amplifier

Temperature Dependency Compensation

Selecting between boosted supply and battery supply

Power amplifier circuit

Semiconductor arrangement in fan out packaging including magnetic structure around transmission line

Radio frequency communication systems

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

Method of testing RF integrated circuit

Signal switching systems and electronic devices using same

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

Low voltage inverter-based amplifier

Predistorter for compensating linearity of an amplifier

Method for enhancing linearity of a receiver front-end system by using a common-mode feedback process and receiver front-end system thereof

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

Hybrid power amplifier circuit or system with combination low-pass and high-pass interstage circuitry and method of operating same

DYNAMIC ERROR VECTOR MAGNITUDE DUTY CYCLE CORRECTION

Low modulation bandwidth envelope tracking circuit

Techniques for improving cellular current consumption

Oscillating circuit and method for calibrating a resonant frequency of an LC tank of an injection-locked oscillator (ILO) of the oscillating circuit while stopping self-oscillation of the ILO

Waveguides with active or passive repeaters for range extension

Integrated RF front end system

Frequency-modulated continuous-wave radar system and frequency tracking method for calibrating frequency gains of a radio frequency signal to approach wideband flatness frequency responses

Reducing distortions in amplified signals radiated by a multiple antenna system

High-frequency module, transmission-reception module, and communication apparatus

Broadband receiver for multi-band millimeter-wave wireless communication

Multiband receivers for millimeter wave devices

WIDE-BAND AMPLIFIERS USING CLIPPER CIRCUITS FOR REDUCED HARMONICS

Power amplifier circuit

Radio frequency (RF) integrated circuit performing signal amplification operation to support carrier aggregation and receiver including the same

Doherty power amplifier circuit

Method to improve power amplifier output return loss and back-off performance with RC feedback network

Waveguide transitions for power-combining devices

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

Differential power amplifier

Second harmonic terminations for AM-AM and AM-PM suppression

Antenna impedance prediction via power amplifier parameter

Power tracker for multiple transmit signals sent simultaneously

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

Differential power amplifier

Semiconductor device and power amplifier module

Phased array antenna system

Phased array antenna system

High-frequency front end circuit

System and method for digital memorized predistortion for wireless communication

Electronically tuned RF termination

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

Digital wireless transmitter with merged cell switching and linearization techniques

Matrix power amplifier

Systems and methods for suppressing and mitigating harmonic distortion in a circuit

Input third order intercept point in low noise amplifier with degeneration tank circuit

Amplifier using parallel high-speed and low-speed transistors

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

Power amplifier for millimeter wave devices

Multimode voltage tracker circuit

Radio-frequency module performance using bandpass filters

Digital predistortion processing method and apparatus

Amplifier

LAMB WAVE LOOP CIRCUIT FOR ACOUSTIC WAVE FILTER

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

Lamb wave element and bulk acoustic wave resonator on common substrate

Power amplifier module

Apparatus and methods for low noise amplifiers

HIGH-LINEARITY CMOS WIFI RF POWER AMPLIFIERS IN WIDE RANGE OF BURST SIGNALS

CURRENT CONTROL USING POWER CELL ISOLATION

Voltage mode power combiner for radio frequency linear power amplifier

Acoustic wave filter with temperature sensor

Signal amplification structure and communication device

Scalable periphery tunable matching power amplifier

INTEGRATED RF LIMITER

Amplifier with second-harmonic trap

Adaptive multiband power amplifier apparatus

Amplifier device

Method and apparatus for using back gate biasing for power amplifiers for millimeter wave devices

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

Low noise amplifiers with output limiting

METHODS FOR REDUCING RADIATED EMISSIONS FROM POWER AMPLIFIERS

Power amplification module

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

Elastic wave device, multiplexer, high-frequency front-end circuit, and communication apparatus

Wiring board, coupler module, and communication device

Reduction of second-order non-linear distortion in a wideband communication system

Amplification circuit, controller, and transceiver circuit

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

Dual-output and dual-mode supply modulator, two-stage power amplifier using the same, and supply modulation method therefor

Semiconductor device

Radar signal processor and radar system

Multi-radio filtering front-end circuitry for transceiver systems

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

Drain sharing split LNA

Wide modulation bandwidth radio frequency circuit

Calibrating a power amplifier such as in a remote unit in a wireless distribution system (WDS)

Power amplifier

TEMPERATURE COMPENSATED POWER AMPLIFIER GAIN

System for monitoring the peak power of a telecommunication signal and method for calculating the peak value and for selecting the associated supply voltage

Resistorless power amplifier

Self-biasing and self-sequencing of depletion-mode transistors

Programmable low dropout regulators with fast transient response when programming output voltage

RF switch

Demultiplexing apparatus and method of designing the apparatus

Transmission device and control method

Control buffer circuit and radio frequency switch for dual mode operation

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

Envelope tracking method, system, and device employing the method

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

Amplification device and electromagnetic wave irradiating device

Universal memory-based model for nonlinear power amplifier behaviors

Load modulation amplifier

Consecutive Doherty amplifier

Envelope tracking circuit and related power amplifier system

MILLIMETER WAVE AUTOMOTIVE RADAR SYSTEMS

Surface mount device stacking for reduced form factor

Voltage memory digital pre-distortion circuit

MULTI-MODE INTEGRATED FRONT END MODULE

Power amplifier layout

System and method for reducing output harmonics

Low Dropout Voltage Regulator for Highly Linear Radio Frequency Power Amplifiers

Power amplifier module

Distortion compensation circuit

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

Combining power amplifiers at millimeter wave frequencies

Packaged RF power amplifier having a high power density

Parallel use of serial controls in improved wireless devices and power amplifier modules

Elastic wave filter device, radio-frequency front-end circuit, and communication apparatus

DIFFERENTIAL HARD-SWITCHING RADIO FREQUENCY (RF) POWER AMPLIFIER

Envelope tracking circuit

Frequency re-bander with UE and power efficiency features

Envelope tracking voltage tracker circuit and related power management circuit

Self-optimising RF amplifier

Envelope tracking circuit

Envelope tracking power management circuit

Load modulation in signal transmission

Radio frequency front-end circuit and communication device

Dynamic phased array tapering without phase recalibration

Tunable, mechanically stable radio-frequency amplifier

MULTI-MODE POWER AMPLIFIERS WITH PHASE MATCHING

Power amplifiers having reduced loss

Compound semiconductor device and fabrication method

Compound semiconductor device

Front end systems with linearized low noise amplifier and injection-locked oscillator power amplifier stage

Method and system for radio frequency electromagnetic energy delivery

Digital offset frequency generator based radio frequency transmitter

Down-conversion mixer

High frequency signal amplifier including balun

RF power amplifier

RF-DAC based phase modulator

Ultrawideband very low noise amplifier with noise reduction and current reuse

Dynamically biased power amplification

Voltage detector and communication circuit including voltage detector

Base station antennas having transmitters and receivers therein that support time division duplexing (TDD) with enhanced bias control for high speed switching

Power amplifier circuit

Power amplifying apparatus with asymmetrical amplification structure and linearity

Tower mounted amplifier

Matching network and power amplifier circuit

Band-reconfigurable and load-adaptive power amplifier

Power amplifying apparatus with wideband linearity

Envelope detecting circuit

Power amplifying apparatus having bias boosting structure with improved linearity

Differential amplifier with complementary unit structure

Amplifiers and related integrated circuits

Butted body contact for SOI transistor

Semiconductor device

Digital power amplification circuit

Reducing impedance discontinuities on a shared medium

System and method for nonlinearity estimation with reference signals

Acoustically coupled resonator notch and bandpass filters

Power amplifier circuit

Power supply for envelope tracking

Switched-capacitor power amplifiers

RF power transistors with impedance matching circuits, and methods of manufacture thereof

Amplifier linearization in a radio frequency system

Multistage amplifier linearization in a radio frequency system

Power amplifier, radio remote unit, and base station

Power amplifier circuit

Transmission unit

Power amplifier for millimeter wave devices

Tunable electromagnetic coupler and modules and devices using same

WLAN front-end

System and method for a radio frequency filter

System and method for a radio frequency filter

System and method for a radio frequency filter

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

Acoustically coupled resonator notch and bandpass filters

Acoustically coupled resonator notch and bandpass filters

System and method for a radio frequency filter

Tunable resonator element, filter circuit and method

System and method for a radio frequency filter

Tunable resonator element, filter circuit and method

Power amplifier module

Power amplification device and television signal transmission system

AUTOMATIC IMPEDANCE MATCHING USING TRUE POWER INFORMATION

Harmonic power amplifying circuit with high efficiency and high bandwidth and radio-frequency power amplifier

Impedance transformation circuit for amplifier

Power amplifier circuit

Power amplifier time-delay invariant predistortion methods and apparatus

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

Packaged RF power amplifier

Processing radio-frequency signals with tunable matching circuits

Method and system for a pseudo-differential low-noise amplifier at KU-band

Power amplifier circuit

Programmable filter in an amplifier

Wideband power amplifiers with harmonic traps

RF power transistor circuits

Power amplifier self-heating compensation circuit

Amplifiers with in-package radial stub harmonic traps

Multiple-path amplifier with series component along inverter between amplifier outputs

Semiconductor apparatus

Integrated passive device for RF power amplifier package

Systems for controlling power to differently loaded antenna arrays

Apparatus for radio-frequency matching networks and associated methods

RF power amplifier with combined baseband, fundamental and harmonic tuning network

Band pass filter

APPARATUS AND METHOD FOR VOLTAGE DISTRIBUTION

Two-stage electromagnetic induction transformer

Power amplifier module

Quadrature combined doherty amplifiers

Wideband power combiner and splitter

Nested microstrip system and method

Envelope trackers providing compensation for power amplifier output load variation

Method for configuring power in wireless communication system and apparatus thereof

High efficiency ultra-wideband amplifier

Low power wake-up receiver

Surface acoustic wave filter, high frequency module, and multiplexer

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

Switched amplifier

Power amplifier modules including transistor with grading and semiconductor resistor

Power amplifier and compound semiconductor device

Integrated CMOS transmit/receive switch in a radio frequency device

Amplifier linearizer with wide bandwidth

Enhanced Reverse Isolation and Gain Using Feedback

Power amplifier module

CURRENT SOURCE CIRCUIT AND AMPLIFIER DEVICE

Power amplifier module, frontend circuit, and communication device

Cascode amplifier bias circuits

Amplifier arrangement

Gate drivers for stacked transistor amplifiers

APPARATUS AND METHODS FOR BIASING LOW NOISE AMPLIFIERS

Multiplexer, radio-frequency front end circuit, and communication terminal

Carrier aggregation circuit allowing carrier waves with different frequencies to share the same amplifier

Monolithic microwave integrated circuit having an overlay transformer and low impedance transmission lines

pHEMT switch circuits with enhanced linearity performance

Semiconductor device and amplifier assembly

Doherty amplifier

Power amplifier circuit

Semiconductor chip

Reader for medical implants

DC control circuit for controlling resistance of a RF transistor

Digital predistortion processing apparatus

Amplification apparatus

RF switch with split tunable matching network

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

Power amplification module

CIRCUITS, DEVICES AND METHODS RELATED TO ADJUSTMENT OF INPUT SIGNAL FOR COMPENSATION OF AMPLIFIER