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WO/2023/202308A1 |
The present utility model provides a radio frequency amplifier circuit and a radio frequency chip. The radio frequency amplifier circuit comprises an input matching circuit, a first capacitor, a bias circuit, a radio frequency amplificat...
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WO/2023/203738A1 |
Provided is a Doherty amplifier (1000) in which the number of amplifiers that contribute to an amplification operation changes in accordance with the power of an input signal, said Doherty amplifier comprising at least four amplifiers (1...
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WO/2023/199883A1 |
This power amplification module comprises: a carrier amplification circuit; a carrier bias circuit that supplies a bias to the carrier amplification circuit; a peak amplification circuit; and a peak bias circuit which includes a first tr...
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WO/2023/197116A1 |
The present application provides a radio frequency power amplification circuit and a communication device. The radio frequency power amplification circuit comprises a power amplification unit, an input matching circuit, and an output mat...
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WO/2023/197673A1 |
The present application relates to the technical field of communications, and discloses a Doherty power amplifier, a circuit board assembly, and an electronic device. Two output ends of a power distribution unit (101) are respectively co...
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WO/2023/092101A9 |
Power amplifiers having improved gate oxide integrity are disclosed. In particular, a dynamic asymmetric cascode bias circuit is used to provide a bias signal to a cascode power amplifier stage. The bias signal swings in synchronicity wi...
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WO/2023/195086A1 |
This high frequency amplifier is configured to include an input matching circuit, an output matching circuit, and m amplification elements (1) (where m is three or a greater integer). At least one of the input and output matching circuit...
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WO/2023/196264A1 |
A system includes a receiver (RX) configured to receive an RX output signal in an RX band, where the RX output signal has a first passive intermodulation (PIM) source in the RX band and a second PIM source in the RX band; and a processin...
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WO/2023/196263A1 |
According to an aspect of an embodiment, a base station configured for enhanced receiver sensitivity may comprise a processing device and a receiver. The receiver (Rx) may be configured to receive an Rx output signal in an Rx band. The p...
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WO/2023/196062A1 |
An amplifier (600) includes an input node (606) and an output node (608), a first transistor (612) and a second transistor (618b), a load circuitry, an inductor, and a capacitor. A first terminal of the first transistor (612) is coupled ...
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WO/2023/184175A1 |
The present application provides a differential amplification circuit, a power amplifier, and an electronic device, for which the power-added efficiency of the circuit can be increased without sacrificing the power gain of the circuit. T...
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WO/2023/190922A1 |
This impedance detection circuit includes: a first wave detector for detecting a first voltage amplitude at one end, of an inverter circuit, to which a high-frequency signal is inputted and another end, of said inverter circuit, from whi...
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WO/2023/192726A1 |
An apparatus is disclosed for frequency-based predislortion signal generation. In an example aspect, the apparatus includes a predistortion linearizer circuit configured to be coupled to an input of an amplifier. The amplifier has non-li...
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WO/2023/184415A1 |
The present application relates to the technical field of chips and discloses a transimpedance amplifier having a filtering function, for use in enabling the transimpedance amplifier having the filtering function to be small in occupied ...
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WO/2023/190546A1 |
This bias circuit comprises: a first bias transistor having a base or gate to which a first bias is supplied, and an emitter or source for supplying the bias to a first amplifier through a first resistor element; a first diode having an ...
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WO/2023/185095A1 |
The present invention application discloses a Doherty power amplifier, comprising an orthogonal coupler which comprises a first coupling inductor and a second coupling inductor, the orthogonal coupler being used for dividing an input sig...
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WO/2023/188245A1 |
A gate bias control circuit (100) comprises: a wave detection unit (10) for detecting an input signal that is of a communication amplification transistor FET, that is a modulation wave signal obtained by modulation of a carrier wave, and...
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WO/2023/184570A1 |
An open-loop operational amplifier circuit with high linearity. The open-loop operational amplifier circuit comprises a main circuit and an auxiliary circuit. The main circuit comprises: a first differential transistor, comprising a firs...
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WO/2023/190209A1 |
An audio amplifier circuit 200 receives power supply voltage VCC at a power supply terminal VCC. A voltage source 250 generates internal power supply voltage VREGA obtained by multiplying the power supply voltage VCC by a first gain, and...
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WO/2023/187921A1 |
A Doherty amplifier according to the present disclosure comprises: an input terminal; an output terminal; a first main transistor that is provided to a first signal path which connects the input terminal and the output terminal; a second...
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WO/2023/190408A1 |
This amplifier circuit is equipped with: a differential amplifier circuit provided with a pair of input transistors and a first differential amplification stage which includes a first load circuit and a second load circuit; and a pre-buf...
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WO/2023/183487A1 |
Obtaining a bias control signal at a current source and responsively generating a fixed current, receiving a differential voltage input signal at corresponding differential input nodes of a plurality of differential amplifier stages conn...
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WO/2023/178683A1 |
The present application relates to the technical field of semiconductors. Provided in the present application are a high electron mobility transistor, a Doherty power amplifier and an electronic device. The present application uses novel...
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WO/2023/183687A1 |
Apparatus and techniques for adaptively adjusting an input current limit for a boost converter supplying power to a load, such as an amplifier. An example circuit for supplying power generally includes a boost converter having an output ...
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WO/2023/182680A1 |
An electronic device comprises at least one communication processor, an RFIC, at least one power amplifier, and at least one converter, wherein the at least one communication processor may be configured to: identify at least one first dr...
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WO/2023/180636A1 |
According to one aspect, the invention relates to a phased array antenna comprising: - a plurality of elementary antennas, - an amplifier circuit (AMPC) for each elementary antenna (ANTE), the amplifier circuit (AMPC) comprising: a power...
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WO/2023/182510A1 |
This electronic circuit includes: a variable amplitude control circuit that controls the amplitude of a first high-frequency signal, which is a single end signal, on the basis of a control signal that changes continuously, and outputs a ...
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WO/2023/176762A1 |
An output circuit according to the present invention comprises: a control voltage generation unit that generates in a first node a first control voltage based on an input voltage signal and generates in a second node a second control vol...
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WO/2023/178200A1 |
Provided is a dual-drive based Doherty amplifier that includes a first power amplifier and a second power amplifier that is in parallel with the first power amplifier. The first power amplifier is configured to receive a first portion of...
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WO/2023/177937A1 |
Certain aspects of the present disclosure provide techniques for digital pre-distortion (DPD). An apparatus for wireless communication generally includes a power amplifier (PA); a first DPD circuit, a second DPD circuit, and a transmitte...
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WO/2023/176526A1 |
A first voltage divider circuit 252 receives an internal power source voltage VREGD at an input node. An input node of a buffer 254 is connected to an output node FILA of the first voltage divider circuit 252. A second divider circuit 25...
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WO/2023/171364A1 |
A high-frequency module (1) comprises a carrier amplifier (11), peak amplifiers (12 and 20), a transformer (30), a phase-shifting line (40), and bias circuits (51 and 52). The amplifiers are included in a semiconductor IC (80), input ter...
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WO/2023/171910A1 |
An electronic device, according to various embodiments, may comprise: a power amplifier for amplifying an input signal; an antenna module for transmitting an RF signal amplified in a circuit of the power amplifier; and a communication pr...
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WO/2023/171499A1 |
A power amplifying device 10A comprises: a first amplifier 110 that outputs an output sound signal Vout to a speaker 20 for converting the signal into a sound; a voltage feedback circuit 100 that negatively feeds back the voltage of the ...
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WO/2023/168820A1 |
A bias signal generation circuit (100) and a clock input circuit using the bias signal generation circuit (100). The bias signal generation circuit (100) comprises: a first branch (11), wherein a first end thereof is connected to a suppl...
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WO/2023/164795A1 |
Disclosed in embodiments of the present application is an off-chip output stage driver circuit, comprising an amplification module for receiving an input signal, amplifying the input signal and then outputting a primary output signal; a ...
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WO/2023/168290A1 |
Certain aspects of the present disclosure provide techniques for applying digital pre-distortion with frequency selectivity to a transmission signal. An example technique includes determining one or more target parameters of an input sig...
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WO/2023/167864A1 |
Amplification circuitry is disclosed that couples neutralization transistors to amplification transistors to neutralize parasitic capacitance of the amplification transistors. Gates of a first amplification transistor and a first neutral...
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WO/2023/165699A1 |
A driver amplifier for an optical transmitter includes a first and a second amplifier channel, each configured to amplify a respective radio frequency channel signal. The first and the second amplifier channel each include a direct curre...
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WO/2023/167885A1 |
A transimpedance amplifier system (TIA) for stabilizing high gain and high frequency signals while minimizing parasitic capacitance effects on the transimpedance amplifier system. The TIA includes an operational amplifier having a first ...
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WO/2023/166664A1 |
In this distortion compensation device, a duplicated sequence removal unit (12) generates a unique sequence (17), which is a sequence obtained by removing a duplicated sequence from a transmission signal (16). A delay amount estimation u...
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WO/2023/161010A1 |
A multilevel linear amplifier with nonlinear components, MLINC (1), for a radio-frequency transmitter, the MLINC (1) comprising a first outphasing amplifier (2) designed to receive a first set of input signals (S11, S12) and to provide a...
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WO/2023/162173A1 |
An amplifier (1) comprises: a first signal source (2) that outputs a first-frequency signal and a second-frequency signal; a second signal source (3) that outputs a first-frequency signal and a second-frequency signal; a first amplifier ...
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WO/2023/162814A1 |
An amplifier (1) comprises: a first transistor (M1); a second transistor (M2) disposed adjacent to the first transistor in a plan view; first wiring (31) disposed around the first and second transistors in a plan view; and second wiring ...
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WO/2023/164036A1 |
A power amplifier includes an over-current protection loop and/or an over-voltage protection loop to assist in preventing operation outside a safe operating zone. In particular, a trigger threshold for the protection loop may dynamically...
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WO/2023/164369A1 |
A virtual radio frequency (VRF) equalizer for an envelope tracking integrated circuit (ETIC) is disclosed. In one aspect, an ETIC provides envelope tracking (ET) for a barely Doherty (BD) power amplifier stage. The VRF equalizer includes...
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WO/2023/162655A1 |
This Doherty amplification circuit (10) comprises a single-stage or multi-stage carrier amplifier (11) and a multi-stage peak amplifier (12). The peak amplifier (12) has a greater number of stages than that of the carrier amplifier (11).
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WO/2023/160431A1 |
Disclosed in the present application are a low-noise amplification circuit and a radio-frequency front-end module. The low-noise amplification circuit comprises a signal input end, a signal output end, a first amplification circuit, a se...
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WO/2023/163796A1 |
This description relates, generally, to protecting a circuit from an input voltage. Various examples include an apparatus including one or more circuits to draw current from, or provide current to, a pair of connectors for an input circu...
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WO/2023/162736A1 |
An oscillation circuit (100) comprises an oscillator (101) and an amplifier circuit (A1) that amplifies the voltage of the oscillator (101). The amplifier circuit (A1) is provided with a first inverter (INV102) which outputs a first inpu...
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