Match Document Document Title
8847687 Multi-path broadband amplifier  
An amplifier device having an extended bandwidth includes a DC coupled amplifier and multiple low noise amplifiers connected in series with one another and connected in parallel with at least a...
8836430 Wideband distributed amplifier with integral bypass  
An improved distributed amplifier (200) includes an input transmission line (201) terminated with an input lead configured to accept an input signal and an output transmission line (202)...
8837629 Extended bandwidth digital Doherty transmitter  
An extended bandwidth digital Doherty transmitter includes a baseband signal processing block including a digital predistortion unit. It also includes a digital signal distribution unit and a...
8836431 High-efficiency power amplifier with multiple power modes  
In a representative embodiment, a multiple mode power amplifier that is operable in a first power mode and a second power mode. The multiple mode power amplifier comprises a first amplifying unit;...
8836421 Apparatus and method for use with an amplifier circuit  
An output network for use with a multi-transistor amplifier circuit comprises N transistors configured to provide a Chireix outphasing behavior. The N transistors coupled to receive different...
8829998 Doherty power amplifier  
A Doherty power amplifier including a main amplifier, an auxiliary amplifier and a controller governing the operation of the auxiliary amplifier, the controller being operative to switch the...
8824991 Multi-mode power amplifier  
A multi-mode power amplifier includes a high-power mode amplifier circuit, a mid-power mode amplifier circuit, and a low power amplifier circuit, where the low-power mode amplifier circuit...
8816767 Amplifier calibration  
A system and method of calibrating an amplifier are presented. The amplifier has a first amplification path and a second amplification path. A first state of the amplifier is identified defining a...
8816771 Signal amplifying circuit with reduced output signal noise by introducing coupling effect and related method thereof  
A signal amplifying circuit includes: an input stage circuit, arranged to receive an input signal; a first inductive device coupled between the input stage circuit and a first reference voltage;...
8810312 Apparatus and method for improving performance in Doherty amplifier  
An apparatus and an operating method of an asymmetric Doherty power amplifier. A Doherty power amplifier apparatus includes a power divider configured to provide a power signal to a carrier...
8810285 Semiconductor integrated circuit apparatus and radio-frequency power amplifier module  
In a semiconductor integrated circuit apparatus and a radio-frequency power amplifier module, a log detection portion including multiple-stage amplifier circuits, multiple level detection...
8811531 Quadrature lattice matching network  
Embodiments include but are not limited to apparatuses and systems including a quadrature lattice matching network including first path having a series inductor and a shunt inductor, and a second...
8803604 Method of controlling an electroluminescent display and related control circuit  
A control circuit is for generating upper and lower voltages that define a range of a data voltage for controlling a driving transistor of an electroluminescent component coupled to a supply line...
8798561 Radio-frequency circuit having a transcoupling element  
An RF circuit having a transcoupler, a multifunctional RF-circuit element that can operate both as an impedance inverter and as a signal coupler. When connected to a fixed load impedance, the...
8797099 Power amplifier device and power amplifier circuit thereof  
The present invention relates to a power amplifier apparatus and power amplifier circuit, and the power amplifier circuit uses the Doherty circuit structure, and uses a high voltage heterojunction...
8797103 Apparatus and methods for capacitive load reduction  
Apparatus and methods for capacitive load reduction are disclosed. In one embodiment, a power amplifier system includes an envelope tracker configured to provide a supply voltage to a plurality of...
8786369 High frequency amplifier  
According to one embodiment, a high frequency amplifier having a division circuit, FET cells, a stabilization circuit and a combination circuit is provided. The division circuit divides an input...
8779856 Doherty amplifier circuit with phase-controlled load modulation  
A symmetric Doherty amplifier includes a main amplifier and a peaking amplifier of the same size as the main amplifier. The symmetric Doherty amplifier is configured to operate at peak output...
8773206 Power amplifier apparatus and power amplifier circuit  
The present invention relates to a power amplifier apparatus and a power amplifier circuit thereof, the power amplifier circuit uses Doherty circuit structure, and it uses a high voltage...
8773205 Doherty power amplifier and implementation method thereof  
The present invention discloses a Doherty power amplifier and an implementation method thereof. A peak amplifying circuit of the Doherty power amplifier comprises a radio frequency switching...
8766427 RF-power device  
An RF-power device includes a semiconductor substrate having a plurality of active regions arranged in an array. Each active region includes one or more RF-power transistors. The active regions...
8754710 Low-noise amplifiers for RF receiver  
Disclosed are low-noise amplifiers and SAW-less receivers. An exemplary amplifier includes at least two amplifier modules. The amplifier modules share a common output node and comprise a common...
8754709 Doherty power amplifier and implementation method thereof  
The present invention discloses a Doherty power amplifier and a method for implementing the Doherty power amplifier. The Doherty power amplifier includes a peak amplifying branch and a carrier...
8749311 Active antenna arrangement with Doherty amplifier  
A Doherty amplifier (100) is described which comprises an input terminal (102) for receiving an input signal (101) and an output terminal (103) for providing an amplified signal (104) of the input...
8749306 Enhanced Doherty amplifier  
The disclosure relates to an enhanced Doherty amplifier that provides significant performance improvements over conventional Doherty amplifiers. The enhanced Doherty amplifier includes a power...
8749305 High efficiency multiple power mode linear radio frequency power amplifier  
The embodiments disclosed in the detailed description include a power amplifier having a low power mode amplifier, a medium power mode amplifier, and a high power mode amplifier in communication...
8750810 Power amplifier with switched output matching for multi-mode operation  
Exemplary embodiments are directed to a transmitter with a power amplifier and a switched output matching circuit implementing a plurality of output paths for a plurality of operating modes is...
8742842 High efficiency power amplifier architecture for off-peak traffic hours  
A power amplifier architecture includes high and low power paths. The high power path may include a number of different amplifier structures. The low power path includes a switching element...
8736381 Detection device provided with a transimpedance circuit  
The invention concerns a detection device including a photodiode (Ph) designed to capture a luminous signal to transform it into a current (Iph) and including first and second terminals, a...
8736375 Doherty amplifier  
A Doherty amplifier has a distributor for branching an input signal into two signals, a carrier amplifier to which one of the signals is inputted from the distributor, a peak amplifier to which...
8731410 Method and system for split voltage domain receiver circuits  
Methods and systems for split voltage domain receiver circuits are disclosed and may include amplifying complementary received signals in a plurality of partial voltage domains. The signals may be...
8717099 Wideband doherty amplifier circuit with peaking impedance absorption  
A wideband Doherty amplifier circuit includes a main amplifier configured to operate in a linear mode, a peaking amplifier configured to operate in a non-linear mode and a Doherty combiner...
8717102 RF device with compensatory resonator matching topology  
An amplifier circuit includes an RF transistor, a parallel resonator and a series resonator. The RF transistor has an input, an output and an intrinsic output capacitance. The parallel resonator...
8710927 High-frequency power amplifier  
A high-frequency power amplifier that amplifies a high-frequency input signal and outputs a signal having one power selected from a plurality of powers includes a high output route that is a...
8710924 Doherty amplifier circuit  
The present invention relates to an amplifier comprising a plurality of Doherty amplifier cells each Doherty amplifier cell comprising an input and an output respectively connected to an input and...
8710923 Method and apparatus for controlling peak amplifier and doherty power amplifier  
A control method and apparatus of a peak amplifier of a Doherty power amplifier are disclosed, wherein, the control apparatus includes a Radio Frequency (RF) switching circuit in a peak...
8710928 Semiconductor power amplifier  
A semiconductor power amplifier of an embodiment includes: a plurality of unit FETs disposed in parallel in a direction of a substantially straight line connecting source electrodes of the unit...
8698564 Radio frequency amplifier circuit  
A radio frequency amplifier circuit includes: low-output transistors, each of which includes an input terminal, an output terminal, and a ground terminal, and amplifies a radio frequency signal; a...
8698563 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Doherty amplifier
 
A Doherty amplifier has a distributor for branching an input signal into two signals, a carrier amplifier to which one of the signals is inputted from the distributor, a peak amplifier to which...
8698557 Hybrid coupler  
A circuit for amplifying an input signal can comprise a plurality of couplers. A splitting coupler of the plurality of couplers can receive the input signal and a combining coupler of the...
8692615 Enhanced transconductance circuit  
A transconductance circuit that improves linearity and output current over a wider range of input voltages than prior designs. The transconductance circuit may include first and second sets of...
8686791 Amplifying apparatus and distortion compensation method  
An amplifying apparatus includes: a plurality of amplifiers; a linear combiner receiving a plurality of leakage signals resulting from cross leakage between outputs of the plurality of amplifiers...
8686794 Amplifying apparatus  
An amplifying apparatus includes a first amplifier that amplifies a first signal of a constant amplitude; a second amplifier that amplifies a second signal identical in amplitude and differing in...
8659354 Power-amplifier arrangement  
A power-amplifier arrangement (35) is disclosed. The power-amplifier arrangement (35) comprises a pulse modulator (40) adapted to receive a digital input signal of the power-amplifier arrangement...
8659352 Power amplifier  
A power amplifier includes: a first amplifying element amplifying an input signal; a second amplifying element amplifying an output signal of the first amplifying element; a third amplifying...
8653886 Method and arrangement in a mobile communications system  
The invention is based on the fact that the current output from a DDB controlled amplifier in backoff, i.e. for low amplitudes, is reduced more or less linearly with the amplitude of the signal to...
8653890 Amplifier calibration  
A system and method of calibrating an amplifier are presented. The amplifier has a first amplification path and a second amplification path. An attenuation of the first amplification path is set...
8653887 Method and arrangement in a mobile communication system  
The present invention relates to an amplifier circuit where a load modulation is applied to a segmented amplifier. This will reduce the shunt loss since the loss of a segmented amplifier is...
8653889 Doherty amplifier having compact output matching and combining networks  
A Doherty amplifier having a main amplifier branch and one or more peak amplifier branches, where the functionality and structure of the cascade of the main output matching network, the main...
8638168 Digital power amplifier  
Systems and methods for power amplification using multiple digital amplifiers are provided. A power amplifier includes a first digital amplifier configured to process a digital input signal to...