| 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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| 12/18/2013 | EP2675188A1 Sensor arrangement and method for generating an amplified sensor signal |
| 12/18/2013 | EP2673880A2 Group delay calibration method for power amplifier envelope tracking |
| 12/18/2013 | EP2367282B1 An electronic apparatus, transmitter, amplifier, and amplifier control method |
| 12/18/2013 | EP1756940B1 System and method for control of loop alignment in adaptive feed forward amplifiers |
| 12/18/2013 | CN203352544U Detuning compensation active load |
| 12/18/2013 | CN203352541U Digital power amplifier protection circuit |
| 12/18/2013 | CN203352540U Continuous time common mode feedback circuit applied to high-speed fully differential operational amplifier |
| 12/18/2013 | CN203352539U Non-distortion current simulation sampling small-signal amplification circuit |
| 12/18/2013 | CN103460598A Amplifier and audio device provided with amplifier |
| 12/18/2013 | CN103457562A Signal processing apparatus and method and communication apparatus |
| 12/18/2013 | CN103457554A Rail-to-rail operation amplifier |
| 12/18/2013 | CN103457553A Gain and slew rate enhancement type amplifier |
| 12/18/2013 | CN103457549A Tri-band radio frequency power amplifier and impedance matching method of matching network of tri-band radio frequency power amplifier |
| 12/18/2013 | CN103457548A Radio frequency circuit power amplifier protection device and transmitter |
| 12/18/2013 | CN103457547A Deep negative feedback amplification circuit |
| 12/18/2013 | CN103457546A Signal processor, signal processing method and communication device |
| 12/18/2013 | CN103457545A Ultralow noise analogue amplifier for three-dimensional resistivity acquisition system |
| 12/18/2013 | CN103457544A Low-noise amplification circuit |
| 12/18/2013 | CN103457543A Wide-band low noise amplifier and amplifying method using it |
| 12/18/2013 | CN103457542A Signal gain circuit and signal gain method |
| 12/18/2013 | CN103457541A Method for widening bandwidth of Doherty power amplifier and Doherty power amplifier improved with method |
| 12/18/2013 | CN103457540A Microwave power amplifier with Doherty structure |
| 12/18/2013 | CN103457042A Active rod antenna |
| 12/17/2013 | US8612182 Methods and systems for isolating a frequency in a rotating machine |
| 12/17/2013 | US8611561 First stage audio amplifier with clamping circuit |
| 12/17/2013 | US8610500 Orthogonal basis function set for digital predistorter |
| 12/17/2013 | US8610499 Radio frequency (RF) amplifier utilizing a predistortion circuit and related techniques |
| 12/17/2013 | US8610496 Switched amplifier circuit arrangement and method for switched amplification |
| 12/17/2013 | CA2516302C N-way rf power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division |
| 12/12/2013 | WO2013183097A1 Distributed amplifier and amplifier module utilizing same |
| 12/12/2013 | US20130328627 Impedance Bootstrap Circuit for an Interface of a Monitoring Device |
| 12/12/2013 | US20130328626 Bias control circuit |
| 12/11/2013 | EP2671320A1 Integrated circuit, wireless communication unit and method for providing a power supply |
| 12/11/2013 | CN203340023U Efficient broadband Doherty power amplifier suitable for low frequency bands |
| 12/11/2013 | CN103444076A Group delay calibration method for power amplifier envelope tracking |
| 12/11/2013 | CN103441740A Weak-signal amplifying circuit |
| 12/11/2013 | CN103441736A Pre-amplifier circuit of CMOS comparator |
| 12/11/2013 | CN103441735A Balance amplifying system and antenna system |
| 12/11/2013 | CN101795120B Multiband matching circuit and multiband power amplifier |
| 12/10/2013 | US8606547 Method and system for measuring the aerodynamic noise of a vehicle |
| 12/10/2013 | US8604879 Matched feedback amplifier with improved linearity |
| 12/10/2013 | US8604873 Ground partitioned power amplifier for stable operation |
| 12/10/2013 | US8604872 Highly linear, low-power, transconductor |
| 12/05/2013 | WO2013180733A1 Transformer-based rf power amplifier |
| 12/05/2013 | WO2013179399A1 Distortion compensation device and distortion compensation method |
| 12/05/2013 | WO2013179382A1 Plural system amplification device |
| 12/05/2013 | US20130321078 Distortion compensation apparatus and distortion compensation method |
| 12/05/2013 | US20130321075 Method For Compensating Signal Distortions in Composite Amplifiers |
| 12/05/2013 | US20130320995 Power amplification of a multi-tone test signal |
| 12/04/2013 | EP2670049A1 Mobile communications device including an RF transmitter providing impedance fluctuation dampening and related methods |
| 12/04/2013 | EP2670048A1 Method for calibrating a lineariser and linearised electronic component |
| 12/04/2013 | EP2670047A1 RF communications |
| 12/04/2013 | EP2548302B1 Feedback loop with parallel forward paths |
| 12/04/2013 | CN203326960U Accurate reference voltage generator in feedforward cancellation amplifier |
| 12/04/2013 | CN203326958U Multichannel low-noise amplifier |
| 12/04/2013 | CN203326957U Linear-circular polarization conversion low noise amplifier |
| 12/04/2013 | CN203326956U C band and Ku band integrated low-noise frequency-reduction amplifier |
| 12/04/2013 | CN103430448A 电荷泵静电放电保护 The charge pump ESD protection |
| 12/04/2013 | CN103430447A Systems and methods for a radio frequency transmitter with improved linearity and power out utilizing pre-distortion and a GAN (gallium nitride) power amplifier device |
| 12/04/2013 | CN103427868A Radio-frequency signal control method and device |
| 12/04/2013 | CN103427771A Balanced transformer less (BTL) differential type audio power amplification circuit |
| 12/04/2013 | CN103427770A Low noise amplifier protecting method and device |
| 12/04/2013 | CN103427769A High-speed channel plate based on mercury cadmium telluride detection technology |
| 12/04/2013 | CN102291089B Method for solving self-excitation of low-noise amplifying circuit and amplifier |
| 12/03/2013 | US8598950 Apparatus and methods for capacitive load reduction |
| 11/28/2013 | WO2013177572A1 Multiple-input multiple-output (mimo) low noise amplifiers for carrier aggregation |
| 11/28/2013 | WO2013177567A1 Low noise amplifiers with transformer-based signal splitting for carrier aggregation |
| 11/28/2013 | WO2013177555A1 Low noise amplifiers for carrier aggregation |
| 11/28/2013 | WO2013177422A1 System for ordering and arranging a data set |
| 11/28/2013 | WO2013176147A1 Power amplification circuit |
| 11/28/2013 | WO2013175876A1 Switching amplifier, and transmitter using same |
| 11/28/2013 | WO2013175690A1 High-frequency amplification circuit |
| 11/28/2013 | WO2013175004A1 Two-stage operational amplifier in class ab |
| 11/28/2013 | WO2013174476A1 Switched amplifier for variable supply voltage |
| 11/28/2013 | WO2013174412A1 Amplifier circuit |
| 11/28/2013 | WO2013174411A1 High efficiency wideband dynamic load modulation power amplifier architecture |
| 11/28/2013 | WO2013136206A4 Look up table-based sum predistorter for power amplifification with concurrent dual band inputs |
| 11/27/2013 | EP2667507A1 Amplifier |
| 11/27/2013 | EP2667506A1 Two-stage operational amplifier in class ab |
| 11/27/2013 | CN203313138U Current operational circuit |
| 11/27/2013 | CN203313127U Active type overexcitation protective circuit device of audio power amplifier |
| 11/27/2013 | CN203313126U Circuit for improving self-heating effect of power amplifier |
| 11/27/2013 | CN203313125U Amplifier with ultra wide band and low noise |
| 11/27/2013 | CN203313124U Circuit for improving additional efficiency of power of power amplifier |
| 11/27/2013 | CN203310924U Rechargeable portable signal amplifying device |
| 11/27/2013 | CN103415993A 增强型多尔蒂放大器 Enhanced Doherty Amplifier |
| 11/27/2013 | CN103414442A High-precision fully differential amplifier based on chopper technology |
| 11/27/2013 | CN103414441A Open loop amplifier with stable output common-mode voltage |
| 11/27/2013 | CN103414439A Full differential power current amplifier provided with noise cancellation circuits |
| 11/27/2013 | CN103414437A AB/inverse F type multi-mode power amplifier based on gallium nitride transistor with high electro mobility |
| 11/27/2013 | CN103414436A Small nonlinearity distortion computation method of amplifier |
| 11/27/2013 | CN103414435A Predistortion linearization device of millimeter wave power amplifier |
| 11/27/2013 | CN102355198B Multi-path asymmetrical Doherty power amplifier |
| 11/27/2013 | CN102075154B Low-power consumption programmable gain amplifier device |
| 11/21/2013 | WO2013173771A1 Integrated start-up bias boost for dynamic error vector magnitude enhancement |
| 11/21/2013 | WO2013173489A2 Integrated technique for enhanced power amplifier forward power detection |
| 11/21/2013 | WO2013171665A1 Circuit and method for generating a variable delay in an electromagnetic signal crossing said circuit, in particular for use in a doherty- configured amplifier |
| 11/21/2013 | US20130310114 Amplifier and mobile communication device |
| 11/21/2013 | US20130308893 Integrated driver and related method |
| 11/21/2013 | US20130307618 Linearizing a power amplifier |