219491 ⎘
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators Combinations of several amplifiers
Amplification apparatus
#302High efficiency path based power amplifier circuitry
#303Power amplifier
#304Transformer power amplifier
#305Adjustable power splitter and corresponding methods and apparatus
#306Multi-way Doherty amplifier
#307Multiple functional equivalence digital communications interface
#308Multiple phase-locked loops for high-power RF-power combiners
#309Voltage multiplier charge pump buck
#310Interference reduction between RF communications bands
#311High-frequency power amplifier with doherty extension
#312Dual N-port MPA
#313ACTIVE ANTENNA ARRANGEMENT WITH DOHERTY AMPLIFIER
#314Broadband high efficiency amplifier system incorporating dynamic modulation of load impedance
#315Broadband amplifier system using a 3dB quadrature combiner to dynamically modulate load impedance
#316High frequency amplifier
#317Multi-mode multi-band self-realigning power amplifier
#318Signal distribution for patient-electrode measurements
#319High frequency power amplifier
#320Doherty power amplifier network
#321Apparatus and method for improving efficiency in power amplifier
#322High-frequency signal amplifier
#323Hybrid coupler
#324System and method for generating a radio frequency pulse-width modulated signal
#325Radio-frequency circuit having a transcoupling element
#326Radio-frequency transmitter, such as for broadcasting and cellular base stations
#327Envelope tracking system for MIMO
#328Cascaded converged power amplifier
#329Doherty amplifier arrangement
#330AMPLIFIER ARRANGEMENT
#331Power amplifier
#332Bypass power amplifier for improving efficiency at low power
#333Semiconductor device having first and second resistance for suppressing loop oscillation
#334Coupler and amplifier arrangement
#335Combiner-less multiple input single output (MISO) amplification with blended control
#336Independent PA biasing of a driver stage and a final stage
#337PA bias power supply undershoot compensation
#338Selecting PA bias levels of RF PA circuitry during a multislot burst
#339PA envelope power supply undershoot compensation
#340Selecting a converter operating mode of a PA envelope power supply
#341Temperature correcting an envelope power supply signal for RF PA circuitry
#342Extended bandwidth digital Doherty transmitter
#343Multi-band power amplifier
#344Amplifier performance stabilization through preparatory phase
#345RF PA linearity requirements based converter operating mode selection
#346Embedded RF PA temperature compensating bias transistor
#347Feedback based buck timing of a direct current (DC)-DC converter
#348DC-DC converter semiconductor die structure
#349Isolated zero degree reactive radio frequency high power combiner
#350Power amplifier with advanced linearity
#351Power amplifier architectures
#352Power amplification based on frequency control signal
#353Power combiner, power amplifying module having the same, and signal transceiving module
#354BAND REJECT FILTERS
#355Charge pump based power amplifier envelope power supply and bias power supply
#356Power amplifier circuit and front end circuit
#357Impedance transforming coupler
#358Multi-level power amplification system
#359Overlay class F choke
#360Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry
#361Linear mode and non-linear mode quadrature PA circuitry
#362Transmission line, impedance transformer, integrated circuit mounted device, and communication device module
#363Radio frequency combiner
#364Radio frequency splitter
#365Combined RF detector and RF attenuator with concurrent outputs
#366Asymmetric multilevel outphasing architecture for RF amplifiers
#367Apparatus and method for improving performance in Doherty amplifier
#368Auto configurable 2/3 wire serial interface
#369Multiport amplifier and multiport amplification method using the same
#370PA bias power supply efficiency optimization
#371High-frequency power amplifier device
#372Doherty amplifier system and transmitter using the same
#373Method and arrangement in a mobile communications system
#374Multiple antenna transceiver
#375Power amplifier
#376Method and arrangement in a mobile communication system
#377Butler matrix and multi-port amplifier having the same
#378Quadrature power amplifier architecture
#379Attenuator
#380Integrated circuit transformer devices for on-chip millimeter-wave applications
#381Power amplifier device with reduced bulk
#382LCL high power combiner
#383On-chip millimeter wave lange coupler
#384Adaptive power amplifier
#385Decade bandwidth planar MMIC four port transformer
#386Multi-band high-efficiency Doherty amplifier
#387Multiport amplifier and wireless device using the same
#388Power combiner/distributor and transmitter using the power combiner/distributor
#389Multi stage amplifier
#390Multi-stage amplifier
#391Band reject filters
#392Asymmetric multilevel outphasing architecture for RF amplifiers
#393Transmission line, impedance transformer, integrated circuit mounted device, and communication device module
#394Generation of high-frequency, high-power electrical signals from low-frequency, low-power lattice network structures as sources
#395Scalable millimeter wave power source
#396TUNABLE IMPEDANCE INVERTER FOR DOHERTY AMPLIFIER CIRCUIT
#397Linearizer incorporating a phase shifter
#398Radio-frequency (RF) amplifier circuits and related techniques
#399Multi-primary distributed active transformer amplifier power supply and control
#400Distributed Doherty power amplifier
#401Combiner for Doherty amplifier
#402POWER AMPLIFICATION MODULE FOR MOBILE COMMUNICATION TERMINAL
#403Amplifier circuit
#404IMPEDANCE MATCHING CIRCUIT ELIMINATING INTERFERENCE BETWEEN SIGNAL LINES AND POWER AMPLIFIER HAVING THE SAME
#405Combined cell doherty power amplification apparatus and method
#406DEVICE FOR POWER AMPLIFICATION OF A PAYLOAD OF A MULTIBEAM SATELLITE FOR BROADCASTING DATA
#407MULTI-BAND POWER AMPLIFIER WITH HIGH-FREQUENCY TRANSFORMER
#408Dynamic switchable mode dual bridge power amplifier
#409Integrated circuit and corresponding method of processing a multitype radio frequency digital signal
#410Power amplifier
#411Multi-Source Spatial Power Amplifier
#412Switchable balanced amplifier
#413Radial power amplification device with phase dispersion compensation of the amplification paths
#414Band reject filters
#415Output networks in combination with LINC technique
#416Digital hybrid amplifier calibration and compensation method
#417RF front-end circuit
#418Multi-primary distributed active transformer amplifier power supply and control
#419Power amplifier with two transistors and traces forming two transformers
#420Multiport amplifiers in communications satellites
#421Transformer power splitter having primary winding conductors magnetically coupled to secondary winding conductors and configured in topology including series connection and parallel connection
#422Global instruction broadcasting for pulse-position modulated data transmission
#423Reconfigurable distributed active transformers
#424Composite amplifier, a radio terminal and a method for improving the efficiency of the composite amplifier
#425Transformer power combiner having a plurality of current combiners coupled in series and a voltage combiner coupled to a series connection of the current combiners
#426On-chip millimeter wave lange coupler
#427Amplifier system for cell sites and other suitable applications
#428Amplifier and radio
#429Tuning multiport amplifiers
#430Modular solid-state millimeter wave (MMW) RF power source
#431Power amplifier comprising a slotted power combiner
#432Splitter/combiner and waveguide amplifier incorporating splitter/combiner
#433Power amplifier architectures
#434Multiport amplifiers in communications satellites
#435Multiport amplifier adjustment
#436Broadband power amplifier
#437Asymmetric multilevel outphasing architecture for RF amplifiers
#438RF amplification device
#439Systems and methods of RF power transmission, modulation, and amplification, including embodiments for controlling a transimpedance node
#440Multi-level pulse width modulation power amplifier method and apparatus
#441ACTIVE DISTRIBUTED SIGNAL SPLITTING APPARATUS
#442Balanced amplifying device having a bypass branch
#443Integrated power amplifier
#444Wideband differential amplifier including single-ended amplifiers coupled to a four-port transformer
#445Premium power amplifier
#446Programmable microwave circuit
#447Device with shared power amplifiers, for use in a wireless telecommunications system
#448Power amplifier architectures
#449Parallel amplifier architecture with feedback control based on reflected signal strength
#450Doherty power amplifier
#451Decade bandwidth planar MMIC four port transformer
#452Bypass device for microwave amplifier unit
#453High-speed modulator driver circuit with enhanced drive capability
#454Compact high-speed modulator driver method and apparatus
#455Transformer power combiner having secondary winding conductors magnetically coupled to primary winding conductors and configured in topology including series connection and parallel connection
#456Multi-level power amplification system
#457LINC amplifying device
#458Multi-planar solid state amplifier
#459High frequency power amplifier
#460Load insensitive balanced power amplifier and related operating method
#461High efficiency power amplifier
#462Device, system, and method of semi-Doherty outphasing amplification
#463Active Splitter Device and Method Using Diplexed Front End
#464High efficiency RF transmitter system using non-linear amplifiers
#465Quasi active MIMIC circulator
#466High power commutating multiple output amplifier system
#467Multi-primary distributed active transformer amplifier power supply and control
#468Matrix balun
#469Output networks in combination with LINC technique
#470Method and apparatus for sensing the envelope of high level multi frequency band RF signals
#471Solid state RF power amplifier
#472Power amplifier
#473Amplifier, radio transmitting apparatus, and radio receiving apparatus
#474RF amplifying device
#475Solid state power amplifier with multi-planar MMIC modules
#476Amplifying system
#477Amplifier
#478Low power distributed transmitter
#479Efficient composite amplifier
#480Balanced amplifier with protection circuit
#481Power amplifier using power combiner
#482High power phased array antenna system and method with low power switching
#483Dual mode RF power amplifier
#484Calibration circuitry and delay cells in rectilinear RF power amplifier
#485Combiner-less multiple input single output (MISO) amplification with blended control
#486Spatially-fed high power amplifier with shaped reflectors
#487Flexible Microwave Transmission Line
#488Semiconductor circuit
#489Impedance transformer for amplifier and amplifier including the same
#490Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
#491Ultra wideband impulse radar
#492POWER DIVIDER/COMBINER AND POWER DIVIDING/COMBINING METHOD USING THE SAME
#493Widebrand differential amplifier including single-ended amplifiers coupled to a four-port transformer
#494Systems and methods of band amplification with a shared amplifier
#495Systems and methods of efficient band amplification
#496Reconfigurable distributed active transformers
#497Power combiner
#498Amplifier device for an antenna operable in at least one mode
#499Integrated circuit transformer devices for on-chip millimeter-wave applications
#500Power amplifier with an output matching network
#501Amplifier, transmitter arrangement having an amplifier and method for amplifying a signal
#502Predistortion linearization device with adjustable amplitude and shape
#503System, microwave switch and method for hot standby of radio frequency power amplifier
#504Band reject filters
#505Matching circuit and multi-band amplifier
#506Low noise amplifier with multiple inputs and multiple outputs
#507Amplifier containing programmable impedance for harmonic termination
#508Power amplifier
#509Method and apparatus for improving sector to sector isolation in a Fourier transform matrix system
#510High efficiency load insensitive power amplifier
#511Amplifier arrangement and method for amplifying a signal
#512Transformer coupling of antennas
#513Thermally distributed integrated power amplifier module
#514Multiband Doherty amplifier
#515Power amplifier system
#516High-frequency circuit device, high-frequency module, and communication apparatus
#517Microwave load
#518Flexible microwave transmission line
#519Solid state microwave power amplifier
#520Electrically conductive attachment device
#521Analog front end for a wireless device
#522Dual op amp IC with single low noise op amp configuration
#523Integrated parallel power amplifier
#524Multi-channel amplifier with reduced overall power emission, and circuit management including same
#525Doherty amplifier
#526Controlling the ratio of amplification factors between linear amplifiers
#527Control of a power amplifier for reducing power consumption in a transceiver
#528Distributed amplifier with built-in filtering functions
#529Digitally convertible radio
#530Radio frequency power amplifier
#531Standby and concurring system of a power amplifier and method for power amplifying
#532Power device having connection structure compensating for reactance component of transmission line
#533Power amplifier
#534Amplifier
#535Composite power amplifier
#536Spatially-fed high-power amplifier with shaped reflectors
#537RF Pulse Shaping By Incremental Amplifier Turn On and Off
#538Multilevel power amplifier architecture using multi-tap transformer
#539Self-shielded electronic components
#540Reconfigurable distributed active transformers
#541Radio frequency power amplifier module
#542High reliability RF generator architecture
#543Semiconductor power device and RF signal amplifier
#544High efficiency amplifier circuits having bypass paths
#545Power amplifier of a transmitter
#546Wireless transmitter and amplifier
#547RF amplifier employing active load linearization
#548Integrated circuit transformer devices for on-chip millimeter-wave applications
#549High-power microwave system employing a phase-locked array of inexpensive commercial magnetrons
#550Measurement circuit and method for measuring the level of an RF signal, and a transmitter including a measurement circuit
#551Method and apparatus for increasing performance in a waveguide-based spatial power combiner
#552Amplifier with high output power dynamic
#553Electronic circuit device
#554Multiple signal intermodulation reduction system
#555High-frequency amplifier
#556Power amplifying apparatus using asymmetric power drive
#557Load mismatch adaptation in coupler-based amplifiers
#558Power amplifier employing thin film ferroelectric phase shift element
#559Three-port nonreciprocal circuit device, composite electronic component, and communication apparatus
#560Method and apparatus for compensating amplifier output for temperature and process variations
#561Radio frequency power amplifier for lossless power combining
#562High frequency amplifier
#563Amplifier gain and phase stabilizer
#564Composite amplifier structure
#565Multilevel power amplifier architecture using multi-tap transformer
#566High efficiency amplifier
#567Circuit for parallel operation of Doherty amplifiers
#568Transistor integrated circuit apparatus
#569Peak power limitation in an amplifier pooling scenario
#570Predistortion linearizing
#571Radio frequency power amplifier module
#572Negative conductance power amplifier
#573Distributed active transformer power control techiques
#574Auxiliary transistor gate bias control system and method
#575Radio frequency power amplifier
#576Power amplifier utilizing high breakdown voltage circuit topology
#577Method and apparatus for an improved power amplifier
#578Method and apparatus for an improved power amplifier
#579Method and apparatus for an enhanced efficiency power amplifier
#580Paralleling digital-input amplifiers
#581Radio frequency power amplifier
#582Composite power amplifier
#583Satellite amplifier system
#584Auxiliary amplifier network
#585Power amplifier
#586Current-to-voltage converting apparatus and impedance measuring apparatus
#587Supply circuit for power amplifier drivers
#588Multi-primary distributed active transformer amplifier power supply and control
#589Method and apparatus for phase balancing of amplifier modules
#590Multi-primary distributed active transformer oscillator power supply and control
#591Power amplifier arrangement having two or more antenna coupling respective amplifiers to a supply potential
#592Reconfigurable distributed active transformers
#593Compensating for load pull in electromagentic signal propagation using adaptive impedance matching
#594Non-switching adaptable 4-way power splitter/combiner
#595Radio frequency power amplifier
#596Gain and phase balanced amplifier redundancy system
#597Radio frequency power amplifier module
#598Switchable combiner and integrated combining apparatus for using it
#599Monolithic array amplifier with periodic bias-line bypassing structure and method
#600Balanced power amplifier and high-frequency communication apparatus