Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
11/2012
11/13/2012US8310311 Semiconductor integrated circuit device and communication system
11/13/2012CA2468625C N-way rf power amplifier with increased backoff power and power added efficiency
11/08/2012WO2012151594A2 Power managent system for pseudo-envelope and average power tracking
11/08/2012WO2012151208A1 Wireless communications including distributed feedback architecture
11/08/2012WO2012150126A1 Quasi-broadband doherty amplifier and associated capacitor circuit
11/08/2012WO2012150026A1 Power amplifier circuit based on a cascode structure
11/08/2012WO2012149976A1 Wideband and reconfigurable doherty based amplifier
11/08/2012WO2012088300A3 Power amplifier control circuit
11/08/2012US20120280750 Circuit arrangement for a redundant power supply for a power amplifier
11/08/2012US20120280749 Systems and methods for mitigating spectral regrowth from non-linear systems
11/08/2012DE112011100405T5 CMOS-Leistungsverstärker mit integrierten einmal programmierbaren (OTP) Speichern CMOS power amplifier with built-in one-time programmable (OTP) Save
11/08/2012DE102011075333A1 Amplifier has end terminal with contact element which is adapted to electrically contact spacer at predetermined position, where contact element is connected to ground terminal
11/08/2012DE102011075312A1 Quasi-breitbandiger Doherty-Verstärker und diesbezügliche Kondensatorschaltung Quasi-wideband Doherty amplifier and related capacitor circuit
11/07/2012EP2521261A1 Wideband enhanced digital injection predistortion system and method
11/07/2012EP2521260A1 Digital predistortion system and method for high efficiency transmitters
11/07/2012EP2521259A2 Semiconductor device and electronic device
11/07/2012EP2521258A1 Power amplifier circuit based on a cascode structure
11/07/2012EP2521257A1 Doherty amplifier circuit
11/07/2012EP2521256A1 Energy-saving audio-amplifier control device
11/07/2012EP2520018A1 Circuit arrangement for the redundant current supply of a power amplifier
11/07/2012CN202524361U Power tube complementary power amplifier
11/07/2012CN1992520B Precision triangular wave generator
11/07/2012CN102771047A Bias circuit, LNA, LNB, receiver for communication, transmitter for communication, and sensor system
11/07/2012CN102771046A Amplifying device, signal processing device, wireless communication device, connector mounting structure, and coaxial connector
11/07/2012CN102769436A Inexpensive micro-power-consumption miniaturized signal conditioning module applicable to portable apparatuses
11/07/2012CN102769433A Radio-frequency power amplifier power control circuit utilizing NMOS (N-channel metal oxide semiconductor field-effect transistor) regulating tube
11/07/2012CN102769431A Doherty amplifier circuit
11/07/2012CN102055410B Low-power-consumption current-limiting circuit without operational amplifier
11/07/2012CN101908861B Transmitter, method for lowering signal distortion, and method for generating predistortion parameters
11/06/2012US8306494 Method and system for a single-ended input low noise amplifier with differential output
11/06/2012US8305142 Third order intermodulation cancellation by in-line generated signal
11/06/2012US8305139 Methods and apparatuses for high power and/or high frequency devices
11/06/2012US8305138 Analog circuit and display device and electronic device
11/01/2012WO2012148843A1 Isolated zero degree reactive radio frequency high power combiner
11/01/2012WO2012148077A2 Digital condenser microphone having preamplifier with variable input impedance and method of controlling variable input impedance of preamplifier
11/01/2012WO2012148032A1 Digital condenser microphone including a preprocessing amplifier having variable input impedance, and method for adjusting the variable input impedance of the preprocessing amplifier
11/01/2012WO2012147784A1 Analog multiplier circuit, variable gain amplifier, detector circuit, and physical quantity sensor
11/01/2012WO2012147347A1 High-frequency amplifying device
11/01/2012WO2012146017A1 Power amplifier device and power amplifier circuit
11/01/2012WO2012146016A1 Power amplifier device and power amplifier circuit
11/01/2012WO2012146015A1 Power amplifier device and power amplifier circuit
11/01/2012WO2012146014A1 Power amplifier device and power amplifier circuit
11/01/2012WO2012146013A1 Doherty power amplifier and implementation method therefor
11/01/2012WO2012146012A1 Base station radio frequency system and protection method of radio frequency power amplifier
11/01/2012WO2012146010A1 Doherty power amplifier apparatus and power amplification method
11/01/2012WO2012146009A1 Doherty power amplifier device and power amplification method
11/01/2012WO2012146008A1 Doherty power amplifier device and power amplification method therefor
11/01/2012WO2012146007A1 Doherty power amplifier and implementation method therefor
11/01/2012WO2012146006A1 Power amplifier device and power amplifier circuit
11/01/2012WO2012146005A1 Method and device for controlling peak amplifier, and doherty power amplifier
11/01/2012WO2012146001A1 Doherty amplifier device
11/01/2012WO2012118921A3 Power supply controller for multi-gain step rf power amplifier
11/01/2012WO2012116668A3 High frequency power multiplier solution
11/01/2012US20120274404 Mixed-signal integrator architecture
11/01/2012US20120274399 Pop-Up Noise Reduction in a Device
11/01/2012US20120274398 RF AGC Control
10/2012
10/31/2012EP2518965A1 Transmission circuit
10/31/2012EP2518901A1 Rf signal generation circuit and wireless transmitter
10/31/2012EP2517360A1 Efficient active source impedance modification of a power amplifier
10/31/2012EP2517353A2 Modulation agnostic digital hybrid mode power amplifier system and method
10/31/2012DE112010002527T5 Verfahren und Systeme zur Stabilisierung eines Verstärkers Methods and systems for stabilizing an amplifier
10/31/2012DE10251702B4 Differenzverstärker Differential amplifier
10/31/2012DE10085410B3 Leitungstreiber mit niedriger Verlustleistung und Verstärkungsverfahren Line driver with a low power loss and reinforcement method
10/31/2012CN202513949U System adopting complex QR-RLS algorithm for realizing DPD function
10/31/2012CN202513881U Ku-band low-noise frequency-down amplifier
10/31/2012CN202513880U Multicarrier power amplifier base station amplifier based on carrier frequency sharing
10/31/2012CN102763325A Amplification device and wireless transmission device provided with same, and gain adjusting method for amplification device
10/31/2012CN102763204A Compound semiconductor device and method for manufacturing same
10/31/2012CN102761310A Doherty power amplifier and implementation method thereof
10/31/2012CN101904089B 3-way doherty amplifier with minimum output network
10/31/2012CN101888212B Circuit structure capable of increasing linearity and power added efficiency of power amplifier
10/31/2012CN101785177B Integrated doherty amplifier
10/31/2012CN101726713B Preamplifier of high-field nuclear magnetic resonance spectrometer 1H/19F channel
10/30/2012US8301090 Distributed mobile communication network
10/30/2012US8299852 Method and apparatus for a gain control circuit via a high frequency signal
10/30/2012US8299850 Device with reconfigurable continuous and discrete time functionality
10/30/2012CA2679114C Linearization of rf power amplifiers using an adaptive subband predistorter
10/26/2012WO2012145540A1 Rf power amplifiers with improved efficiency and output power
10/26/2012WO2012145215A1 Method and apparatus for modifying the sensitivity of an electrical generator to a nonlinear load
10/26/2012WO2012144392A1 Power supply circuit
10/26/2012WO2012144104A1 Wireless communication apparatus
10/26/2012WO2012143748A1 Amplifiers and related integrated circuits
10/26/2012WO2012142909A1 Rf transmitter, integrated circuit device, wireless communication unit and method therefor
10/26/2012WO2012142893A1 Low noise amplifier protection switch
10/26/2012WO2012094461A3 Circuit and method for reducing input leakage in chopped amplifier during overload conditions
10/26/2012WO2012050257A3 Feedforward linear power amplifier with negative group delay circuit
10/25/2012US20120268212 Amplifier Arrangement and Method for Operating an Amplifier Arrangement
10/25/2012US20120268206 Negative capacitance synthesis for use with differential circuits
10/25/2012DE102011002238A1 Lineare Verstärkeranordnung für hochfrequente Signale Linear amplifier device for high frequency signals
10/24/2012EP2515435A2 Power amplifier
10/24/2012EP2515434A1 Electronic device with increased immunity to audio noise from system ground currents
10/24/2012EP1569350B1 Power limit device and digital radio transmitter using the same
10/24/2012CN202503476U Power supply loop apparatus of radio frequency amplifier
10/24/2012CN102754335A High voltage, high frequency esd protection circuit for RF ICs
10/24/2012CN102754334A Power amplifier with feedback impedance for stable output
10/24/2012CN102754333A Wide band LNA with noise canceling
10/24/2012CN102751955A Preamplifier for rapid spot size measurement
10/24/2012CN102751952A Impedance matching circuit and impedance matching method of power amplifier
10/24/2012CN102751951A Resistance voltage division attenuator
10/24/2012CN102751950A Digital predistortion method of multirange multimode radio frequency power amplifier
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