| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 06/20/2013 | WO2013090847A1 Millimeter wave power amplifier |
| 06/20/2013 | WO2013090846A2 Waveform shaping for audio amplifiers |
| 06/20/2013 | WO2013088635A1 High output power amplifier |
| 06/20/2013 | WO2013087639A1 Electrically variable impedance matching network for an hf power transistor |
| 06/20/2013 | WO2013087232A1 Apparatus and method for use with an amplifier circuit |
| 06/20/2013 | WO2013086658A1 Doherty power amplification apparatus and method |
| 06/20/2013 | WO2013025623A3 Class e amplifier overload detection and prevention |
| 06/20/2013 | US20130154748 Apparatus and Method for Thermal Interfacing |
| 06/20/2013 | US20130154747 Millimeter wave power amplifier |
| 06/20/2013 | US20130154735 Rf power amplifier and operating method thereof |
| 06/20/2013 | US20130154734 Orthogonal Basis Function Set for Digital Predistorter |
| 06/20/2013 | US20130154733 Method for synthesizing sigma-delta modulator |
| 06/20/2013 | US20130154728 Adaptive Filtering of Blocker Signals in Demodulators |
| 06/20/2013 | DE102012218948A1 Methode zur Vorverzerrung von Signalen für nicht-lineare Komponenten in Anwesenheit von Langzeitspeichereffekten Method for predistortion signals for non-linear components in the presence of long-term memory effects |
| 06/20/2013 | DE102012112106A1 Adaptives Filtern von Blockersignalen bei Demodulatoren Adaptive filtering blocker signals at demodulators |
| 06/20/2013 | DE102011088617A1 Elektrisch abstimmbares Impedanzanpassnetzwerk eines HF-Leistungstransistors Electrically tunable Impedanzanpassnetzwerk of an RF power transistor |
| 06/19/2013 | EP2605402A2 Third order intermodulation cencellation for RF transconductors |
| 06/19/2013 | EP2603973A1 High-frequency power amplifier having doherty enhancement |
| 06/19/2013 | CN203014746U Amplifier |
| 06/19/2013 | CN203014745U Packaging structure for low-noise amplifier |
| 06/19/2013 | CN103166581A Radio frequency low noise amplifier with high linearity |
| 06/19/2013 | CN103166580A Radio frequency power amplification module and high power radio frequency power supply with heat dissipation air channel |
| 06/19/2013 | CN103166578A 放大器 Amplifiers |
| 06/19/2013 | CN103166577A Low noise amplifier and operation method thereof |
| 06/19/2013 | CN103166576A Latch type sense amplifier capable of resisting turn of single particle |
| 06/19/2013 | CN103166575A Audio amplifying circuit |
| 06/19/2013 | CN103166574A Amplifying circuit capable of suppressing spikes of an audio signal |
| 06/19/2013 | CN103165661A Methods and apparatus for reduced gate resistance finfet |
| 06/19/2013 | CN101615894B Adjustable linear operation transconductance amplifier |
| 06/19/2013 | CN101473529B Switch mode power magnification |
| 06/18/2013 | US8467996 Spectral analysis operating system |
| 06/18/2013 | US8466749 Variable gain amplifier |
| 06/18/2013 | US8466741 Transimpedance amplifier, integrated circuit and system |
| 06/13/2013 | WO2013086361A1 Transformer power combiner with filter response |
| 06/13/2013 | WO2013084778A1 Predistorter, predistorter control method |
| 06/13/2013 | WO2013084066A1 A selection circuit and an amplifier comprising the same |
| 06/13/2013 | US20130147553 Auto-zero amplifier and feedback amplifier circuit using the auto-zero amplifier |
| 06/13/2013 | US20130147550 Power Amplifier Time-Delay Invariant Predistortion Methods and Apparatus |
| 06/13/2013 | US20130147548 Linear amplifier that perform level shift and method of level shifting |
| 06/12/2013 | EP2602932A1 Power modulator, and method for controlling same |
| 06/12/2013 | EP2602931A2 Amplifier |
| 06/12/2013 | EP2602930A1 Transmitter and method for controlling same |
| 06/12/2013 | CN202998010U Power amplifying circuit for Beidou satellite navigation |
| 06/12/2013 | CN103151992A Selection circuit and amplifier comprising same |
| 06/12/2013 | CN103151991A Amplifier inductor sharing for inductive peaking |
| 06/12/2013 | CN103151990A Method for compensating nonlinear voltage output based on MOS (metal oxide semiconductor) tube in common source amplification circuit |
| 06/12/2013 | CN103151989A Logarithmic amplifier with low voltage and low temperature coefficient |
| 06/12/2013 | CN103151988A Self-adaptive amplifying circuit and fish detector based thereon |
| 06/12/2013 | CN103151987A High precision linear amplifier |
| 06/12/2013 | CN103151986A Amplifier circuit based on field-effect tube |
| 06/12/2013 | CN102013874B An amplifier output amplitude detection circuit |
| 06/12/2013 | CN101710887B Method and system for processing digital predistortion |
| 06/11/2013 | US8461932 Signal amplifier, bridge connection signal amplifier signal output device, latch-up prevention method, and program storage medium |
| 06/11/2013 | US8461925 Distortion compensating apparatus, amplifying apparatus, transmitting apparatus, and distortion compensating method |
| 06/11/2013 | US8461921 Amplifier module with multiple operating modes |
| 06/06/2013 | WO2013082384A1 Rf power converter |
| 06/06/2013 | WO2013078992A1 Doherty power amplifier and method and device for improving power amplification efficiency thereof |
| 06/06/2013 | WO2012176119A3 Centralized adaptor architecture for power amplifier linearizations in advanced wireless communication systems |
| 06/06/2013 | US20130142284 Predistortion circuit, wireless communication unit and method for coefficient estimation |
| 06/06/2013 | US20130141169 Linear amplifier power supply modulation for envelope tracking |
| 06/06/2013 | US20130141168 Low-noise amplifier with through-mode |
| 06/06/2013 | US20130141160 Power series digital predistorter and control method thereof |
| 06/06/2013 | DE102007026912B4 Vorrichtung und Verfahren zur Stromversorgung einer induktiven Last Apparatus and method for supplying power to an inductive load |
| 06/05/2013 | EP2600523A1 Broadband linearization by elimination of harmonics and intermodulation in amplifiers |
| 06/05/2013 | EP2600522A1 Wide band LNA with noise canceling |
| 06/05/2013 | EP2599274A1 Method for predistortion in a communication system |
| 06/05/2013 | CN202978831U Class B amplifier integrated circuit |
| 06/05/2013 | CN202978830U Protection switch circuit for power amplifier |
| 06/05/2013 | CN202978829U Automatic level control circuit capable of simulating ALC (Automatic Level Control) to realize power amplifier module |
| 06/05/2013 | CN202978828U Output circuit structure of radio-frequency power amplifier |
| 06/05/2013 | CN202978827U Data amplification circuit of piezoresistive pressure sensor |
| 06/05/2013 | CN202978826U Short-wave low-noise amplifier |
| 06/05/2013 | CN202978825U Broadband two-path balanced low-noise amplifier |
| 06/05/2013 | CN202978824U Photoelectric signal conversion and amplification device |
| 06/05/2013 | CN202978823U Short wave amplifier with large dynamic and low power consumption |
| 06/05/2013 | CN202978446U Self-excited tracking power amplifier of wireless power transmission system |
| 06/05/2013 | CN202975887U Analog circuit for performing grid voltage control and temperature compensation in power amplification module |
| 06/05/2013 | CN103141023A Current saving by reduced modulation code and selective gating of RF signal |
| 06/05/2013 | CN103138725A Circuit with metal board capacitor, ratio frequency switch with metal board capacitor and low-noise amplifier |
| 06/05/2013 | CN103138691A Feedback operational amplifier |
| 06/05/2013 | CN103138690A Circuit capable of conducting power compensation through bias current in radio frequency power amplifier |
| 06/05/2013 | CN103138688A Circuit unit |
| 06/05/2013 | CN103138687A Distortion inhibition in high level audio frequency amplifying circuit |
| 06/05/2013 | CN103138686A Non-linear distortion compensation device of power amplifier |
| 06/05/2013 | CN103138685A Orthogonal frequency division multiplexing (OFDM) self-adaption feedforward linear power amplifying device |
| 06/05/2013 | CN103138684A Amplifying circuit and wireless communications apparatus including the same |
| 06/05/2013 | CN103138683A Amplifier circuit |
| 06/05/2013 | CN103138682A Low noise amplifier |
| 06/05/2013 | CN103138681A Improved Doherty power amplifier device |
| 06/05/2013 | CN102201791B AB-class audio amplifier power protector |
| 06/05/2013 | CN102118132B 功率放大器和信号处理方法 Power amplifiers and signal processing method |
| 06/05/2013 | CN102055411B Power amplifier linearization correcting circuit and method based on multi-channel feedback |
| 06/05/2013 | CN101888217B Fully-differential amplifier circuit |
| 06/05/2013 | CN101414806B RF power amplifier apparatus and power supply circuit for controlling power-supply voltage to RF power amplifier |
| 06/04/2013 | US8457362 Image inspecting apparatus |
| 06/04/2013 | US8456233 Chopper |
| 05/30/2013 | WO2013077290A1 Power supply circuit |
| 05/30/2013 | WO2013077104A1 Switching circuit and envelope signal amplifier |
| 05/30/2013 | WO2013075727A1 Adaptive supply voltage for a power amplifier |
| 05/30/2013 | US20130135503 Amplifier apparatus and methods using variable capacitance dependent on feedback gain |