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Patent Searching and Data


Matches 501 - 550 out of 28,868

Document Document Title
WO/2022/208289A1
A method of delivering power to a load coupled to an energy module includes determining a power to be produced in a load, generating a signal, and selecting a first or second power amplifier circuit based on the power to be produced in t...  
WO/2022/208879A1
A conventional Doherty amplifier has had a problem of poor linearity since transistors used for a carrier amplifier and a peak amplifier are driven at different operation classes. A Doherty amplifier according to the present disclosure...  
WO/2022/204635A1
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive a set of reference signals having different levels of power amplifier compression. The mobile station may...  
WO/2022/201764A1
A signal processing device (10) according to the present disclosure comprises an adjustment unit (11) that adjusts one or both of an input signal and a calibration signal, which is for performing calibration between transmission systems,...  
WO/2022/203554A1
Method for supporting suppression of distortion caused by a power amplifier, "PA", (423) comprised in a transmitter system (401) configured to perform digital predistortion, "DPD", and feedforward, "FF", linearization on multiple digital...  
WO/2022/203860A1
A wideband amplifier includes a first stage and a second stage. The first stage includes a transconductance transistor driven by an input signal through an input transformer. The transconductance transistor couples to a cascode transisto...  
WO/2022/204646A1
Certain aspects of the present disclosure provide an amplifier. The amplifier generally includes an amplifier core circuit configured to amplify a radio frequency signal and having a first output and a second output; a transformer couple...  
WO/2022/203895A1
Methods and devices for reducing gate node instability of a differential cascode amplifier are presented. Ground return loops, and therefore corresponding parasitic inductances, are eliminated by using voltage symmetry at nodes of two ca...  
WO/2022/196926A1
A communication device is disclosed. According to various embodiments, the communication device may comprise: a transmitter that, in a first operation, distorts an input signal through a digital predistortion unit, converts the distorted...  
WO/2022/196443A1
The present invention reduces in electromagnetic radiation of a class-D amplifier. A class-D amplifier 100 has, mounted on one printed board 300 thereof, an input amplification circuit 10, a modulation circuit 20, an output amplificati...  
WO/2022/198184A1
The operational amplifier disclosed includes an input stage configured to receive power from a floating supply in a low voltage range that can float according to the common mode voltage at the input. The floating supply facilitates the u...  
WO/2022/198022A1
The present disclosure describes an amplification stage (12) which includes a top amplification structure (16) having a top collector and a bottom amplification structure (18) having a bottom collector. The top amplification structure (1...  
WO/2022/195995A1
An operational amplifier (12) outputs a signal obtained by integrating sums of first audio signals inputted to an inverted input terminal and feedback signals outputted from a power amplification unit (14). A pulse width modulation unit ...  
WO/2022/194209A1
The present application discloses a nonlinear distortion compensation circuit, apparatus and method, and an electronic device. The nonlinear distortion compensation circuit comprises: a first input end of a linear dynamic circuit is used...  
WO/2022/194689A1
According to an aspect, there is provided a tunable radio frequency filter (209) for preselection in a multiband radio receiver or transceiver with a low-noise amplifier with a single-ended input. The tunable radio frequency filter compr...  
WO/2022/197334A1
A Doherty amplifier system (10) is disclosed having a carrier amplifier (12) with a carrier drain bias input (14), and a peak amplifier (24) having a peak drain bias input (26), and a peak gate bias input (28). Also included is a program...  
WO/2022/196920A1
A power amplifier, according to various embodiments, comprises: a transistor set to be turned on or off on the basis of an input signal; a first filter circuit connected between a ground and an output terminal of the transistor; and a se...  
WO/2022/188486A1
The present application provides a reconfigurable high-integration-level radio frequency amplifier and a chip. When a signal source sends a radio frequency signal to an input amplification circuit, a control circuit sends a first control...  
WO/2022/189206A1
Transmitters and methods of transmitting a polar-modulated signal include a driver to output a polar-modulated signal according to a phase-modulation signal and an amplitude-modulation signal. A voltage regulator is connected to the driv...  
WO/2022/191536A1
Disclosed is an electronic device comprising: a power supplier; an amplifier for receiving voltage from the power supplier through a first signal path, and outputting an amplified output signal for an input signal; and a coupler for acqu...  
WO/2022/186267A1
The present invention facilitates the shortening of the length of the wiring between a power amplifier and an output terminal to be connected to the power amplifier. A tracker module (1) comprises: a substrate (2), a tracker component (3...  
WO/2022/185093A1
Systems and methods for separate digital predistortion (S-DPD) for multi-band radios are disclosed. In one embodiment, a method of operation of a digital predistortion (DPD) actuator system for a radio node for a wireless network compris...  
WO/2022/187003A1
Methods and circuital arrangements for turning OFF branches of a multi-branch cascode amplifier are presented. First and second switching arrangements coupled to a branch allow turning OFF the branch while protecting transistors of the b...  
WO/2022/185505A1
Provided is a distortion compensation circuit capable of suppressing divergence in an operation performed by means of an iterative operation in iterative learning control processing. A learning device (12) for a distortion compensation...  
WO/2022/186711A1
An apparatus (100) for predistortion of a digital signal in a transmitter chain comprises a feeder (102), a decomposer (104), an evaluator (106), a predistortion unit (108) and a composer (110). An input signal (202) sampled at a first s...  
WO/2022/185459A1
A power amplifier according to this disclosure includes: a main transistor that amplifies an input signal input from a gate terminal, outputs the amplified input signal from a drain terminal, and has a drain current delay characteristic ...  
WO/2022/185029A1
An amplifier circuitry (300) includes a linear amplifier stage (110) that receives an input signal and outputs a first drive signal to an output node (302) and a switching amplifier stage (130) operable to output a second drive signal to...  
WO/2022/179195A1
Disclosed in the embodiments of the present application are a bias circuit and an amplifier. The bias circuit comprises a mirror current source and a current-to-voltage converter; a first end of the mirror current source is connected to ...  
WO/2022/182045A1
In a communication circuit and an electronic device comprising the communication circuit according to various embodiments, the communication circuit comprises: an amplifier module including a first amplifier and a second amplifier for am...  
WO/2022/180762A1
A differential amplification device is configured to include: a first transistor (1-1) that has a first terminal (1-1a) and a second terminal (1-1b), amplifies a first signal provided to the first terminal (1-a), and outputs the amplifie...  
WO/2022/183177A1
Apparatus and methods for pre-distorting a radio frequency transmit signal based on local oscillator clock shaping are disclosed. In certain embodiments, one or more clock signals generated by a local oscillator and used for mixing in a ...  
WO/2022/180373A1
This application relates to current sensing, in particular for a signal processing circuit (500) for outputting an output signal (Sout) based on an input signal (Sin). An output stage (101) includes an output transistor (102) driven, in ...  
WO/2022/177482A1
Method and device(s) (100; 110; 2000) for supporting performance of machine learning based DFR and DPD on multiple digital input signals (x1..xB; c1..cB) relating to different frequency bands (B), respectively, in order to signal conditi...  
WO/2022/176139A1
A distortion compensation device (1) is configured so as to comprise: a weighting unit (11) that divides a to-be-amplified transmission signal into multiple transmission signals, and weights each of the transmission signals, after divisi...  
WO/2022/174645A1
Provided in the embodiments of the present application are an amplitude modulation-phase modulation compensation circuit, a radio frequency power amplifier and a device. The compensation circuit comprises a detection circuit, a reconfigu...  
WO/2022/174631A1
The present application provides a multi-frequency low noise amplifier, comprising: an input matching network, an amplifier tube and an output matching network; the input matching network comprises a first out-of-band suppression circuit...  
WO/2022/176115A1
This voltage setting circuit (11) comprises: a frequency comparator (14) for comparing the oscillation frequency of a first distributed voltage-controlled oscillator (13_1) and that of a second distributed voltage-controlled oscillator (...  
WO/2022/176067A1
A wireless communication circuit (1) comprises an antenna (10), a transmission circuit (2) including an output amplifier (4) that outputs a transmission signal (STx) to the antenna (10), a reception circuit (6) including an LNA (8) to wh...  
WO/2022/174403A1
The embodiments of the present application discloses a noise reduction circuit, comprising: a first signal detection module, a first grounding circuit, a first trans-impedance amplifier, a second operational amplifier and a reference vol...  
WO/2022/175755A1
The invention relates to a transimpedance amplifier, for instance a transimpedance amplifier of an active antenna comprising a loop aerial or a screened loop aerial. A transimpedance amplifier of the invention comprises: an input port (1...  
WO/2022/176187A1
The distributed circuit (10) according to the present invention is provided with a first transmission line (121) having an input end into which an input signal is input, a second transmission line (122) having an output end from which an...  
WO/2022/176947A1
A high frequency power amplification device (200) comprises, on a first main surface (101) of a multilayer sub-mount substrate (100): a carrier amplification semiconductor device (11); a peak amplification semiconductor device (12); a bi...  
WO/2022/173862A1
A system and method which includes receiving an input signal having an envelope and generating an envelope detection signal corresponding to the envelope. A bias current (IDD) provided to an amplifier circuit (308) is adjusted based upon...  
WO/2022/173357A1
The present invention relates to a method (300) for compensating output efficiency of a plurality of amplifiers arranged to operate with an antenna array, where the antennas in the antenna array are electromagnetically coupled to each ot...  
WO/2022/173540A1
An amplifier (800) has a first amplifying circuit (810) configured to receive a voltage input and to output an amplified current, a second amplifying circuit (820) configured to receive the amplified current and to output an amplified vo...  
WO/2022/170645A1
The present invention relates to the technical field of audio power amplifiers. Disclosed is a low-distortion class D power amplifier applied to a high-power range, comprising: a voltage control module, a current self-excited inner loop ...  
WO/2022/170816A1
Disclosed are a bias circuit of a power amplifier, and an apparatus and a device. The circuit comprises a first-part circuit, a second-part circuit and a power source, wherein the power source is connected to a power source end of the fi...  
WO/2022/172868A1
Provided is a power amplification circuit for performing power amplification appropriately in accordance with the state of an input signal. A power amplification circuit (10) comprises: a divider (101) which includes a variable inductanc...  
WO/2022/167142A1
The invention relates to a Doherty amplifier circuit (2) for a transmission stage (1), having a primary high-frequency, HF, amplifier element (5) and a secondary HF amplifier element (6), which, when in operation, is designed to effect a...  
WO/2022/168966A1
A power amplifier circuit comprising a first carrier amplifier that includes a differential amplifier circuit which has a first transistor and a second transistor, and a first peak amplifier that is formed on the same semiconductor subst...  

Matches 501 - 550 out of 28,868