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WO/2020/191137A1 |
In an asymmetric Doherty amplifier circuit (36), one or more shunt reactive components are added to at least one side of an impedance inverter (38) connecting the amplifier outputs, to reduce a capacitance imbalance between the two ampli...
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WO/2020/183657A1 |
The present invention provides an amplifier equipped with a first transistor 1 to which a signal input terminal is connected, a second transistor 2 to which a signal output terminal is connected, wiring 14 connecting the first transistor...
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WO/2020/185783A1 |
A predistorter for an electro-optical converter includes a plurality of low noise RF amplifiers distributed along a transmission line that receive an RF input. Second order intermodulation injection (IM2) circuitry includes an inductivel...
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WO/2020/185780A1 |
An apparatus has a Radio Frequency (RF) signal generator to produce RF signals phase shifted relative to one another in accordance with RF frequency waveform parameters. Amplifier chains process the RF signals to produce channels of ampl...
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WO/2020/182305A1 |
The embodiments herein relate to a power amplifier arrangement (100) comprising a main amplifier (101) comprising an output connected to a first terminal (110) of a primary winding (105) of a transformer (125). A second terminal (113) of...
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WO/2020/177163A1 |
Disclosed is a chopper amplifying circuit employing a negative impedance compensation technique, comprising a differential input end, a first-level chopper switch, a first-level amplifying circuit, a second-level chopper switch, a second...
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WO/2020/180540A1 |
Methods and devices for amplifying an input RF signal according to at least two gain-states is described. According to one aspect, a multi gain amplifier circuit including a low noise amplifier having a stack of transistors is used for a...
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WO/2020/177691A1 |
A power amplification device (100), a beamforming system, a transmitter, and a base station. Said device (100) comprises: a power amplifier (1) for amplifying a first signal, a power supply (2), and a power supply modulator (3) for contr...
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WO/2020/176088A1 |
An exemplary audio enhancement system substantially eliminates latency by returning audio input signals in amplified form directly in the analog domain to the source, thereby reducing signal degradation and removing redundancy from digit...
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WO/2020/176603A1 |
A method for digital predistortion (DPD) calibration in a wireless communication device is provided that includes transmitting (604), by transmission circuitry of the wireless communication device, a plurality of pulses, where each pulse...
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WO/2020/174303A1 |
The present invention provides a novel comparison circuit, a novel amplifier circuit, a novel battery control circuit, a novel battery protection circuit, a power storage device, a semiconductor device, an electrical apparatus, and the l...
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WO/2020/172848A1 |
Disclosed is a travelling-wave amplifier, which is provided with an input port and an output port. The travelling-wave amplifier comprises: an input transmission line with a first electrostatic protection circuit; an output transmission ...
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WO/2020/169446A1 |
The invention relates to a gas detector (10) with an ionising device (12) for producing ions depending on a gas to be detected, with a catcher for receiving the electrical current produced by the ions, and a measuring device (14) with an...
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WO/2020/170668A1 |
The present invention addresses the problem of providing an amplifier circuit that operates normally even when input and output are reversed. An amplifier circuit (1) according to the present invention: comprises a first block (B1), a se...
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WO/2020/169951A1 |
A device for amplification of an input signal, the device comprising: amplification circuitry comprising a plurality of switchable transistors; a variable voltage input connected to the amplification circuitry; and controller circuitry; ...
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WO/2020/168993A1 |
The present application provides a signal processing circuit and an audio power amplifying circuit. The signal processing circuit comprises: a first amplifying unit used for receiving a first input signal and a second input signal, where...
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WO/2020/166938A1 |
An electronic circuit according to various embodiments may comprise a switch circuit, wherein the switch circuit may comprise: a first switch connected to a first port and a second switch connected to a second port, which are connected i...
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WO/2020/164688A1 |
A method for controlling allotment of power input between at least two PAs of a radio unit for data communication in a wireless communications network is provided. The radio unit has access to Direct Current (DC) power and Photovoltaic (...
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WO/2020/166629A1 |
An input signal is input to a main power amplifier (1) and an auxiliary power amplifier (2). A combiner (3) is connected to an output of the main power amplifier (1) and an output of the auxiliary power amplifier (2) The combiner include...
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WO/2020/163821A1 |
Radio Frequency (RF) amplifier design with RFIC suffers gain variations from gain variations due to wafer process variations, temperature changes, and supply voltage changes. Three methods are proposed to achieve constant amplifier gain,...
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WO/2020/162981A1 |
An apparatus includes at least one processing device configured to obtain samples (202) of an input signal to be amplified and, in real- time, pre-distort at least some of the samples using pre-distortion values (206) from at least one l...
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WO/2020/163708A1 |
Amplifier input protection circuits are described. In one embodiment, a photoreceiver for a lidar system has a photodetector configured to generate an output current in response to received light. A transimpedance amplifier is configured...
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WO/2020/156884A1 |
An amplifier circuit includes a circuit path (320) of serially connected complementary type transistors (Mp1, Mn1). First and second feedback loops include a loop amplifier (301), the transistors (Mp1, Mn1) of the circuit path (320) and ...
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WO/2020/158080A1 |
A higher harmonics processing circuit comprises a power supply line for supplying electric power to an amplifying element, and a higher harmonics processing unit, connected to the power supply line, for performing higher harmonics proces...
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WO/2020/155128A1 |
The embodiment of the present application provides a logarithmic amplifier, relating to the technical field of circuit, and being able to solve the problem of low signal detection accuracy caused by big system error of the logarithmic am...
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WO/2020/151082A1 |
An output matching circuit and a power amplifier formed by same. The output matching circuit comprises an impedance conversion component (1) and a first matching component (2) connected to the input end of the impedance conversion compon...
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WO/2020/153816A1 |
An electronic device in a wireless communication system according to various embodiments may comprise: a processor; a power amplifier (PA) for a first frequency band; a low-noise amplifier (LNA) for a second frequency band which at least...
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WO/2020/151081A1 |
A dual-mode power amplifier having a switchable operating frequency, comprising: at least two former-stage amplification circuits(1), matching circuits (2) for performing matching on a signal outputted by each of the former-stage amplifi...
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WO/2020/147637A1 |
A reference voltage generation circuit (510) and a switched-mode power supply, comprising: a first conversion circuit (210), a second conversion circuit (220), a bias conversion circuit (300), and a summing resistor (400). A sampling cir...
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WO/2020/147984A1 |
A clamp circuit can control a clamp transistor such that a change in a photodiode current detection voltage signal in an optical receiver circuit can control the clamp transistor to change state when a difference of a clamp voltage and t...
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WO/2020/148094A1 |
The invention relates to a transmitting and receiving device having a wide-band HF power amplifier, in particular an N-way Doherty amplifier having active load modulation. The aim of the invention is to provide, by means of suitable desi...
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WO/2020/145585A1 |
A communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The disclosure ...
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WO/2020/146534A1 |
Apparatus and methods for biasing power amplifiers are provided herein. In certain embodiments, a power amplifier includes a bipolar transistor having a base biased by a bias network having a reactance that controls an impedance at the t...
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WO/2020/146408A1 |
An example process includes reducing a quality factor of a first tunable bandpass filter, used, for example, in a low-noise amplifier stage of a polar receiver. A first wideband test signal centered at a desired center frequency of a sec...
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WO/2020/146109A1 |
A polar transmitter including a digital power amplifier cell that includes a first circuit and an amplifier circuit. The first circuit is configured to receive a phase modulated carrier signal and to generate a PMOS control signal and an...
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WO/2020/144554A1 |
An apparatus for turning off a cascode amplifier having a common-gate transistor and a common-source transistor is disclosed that includes the cascode amplifier, a feedback circuit, and a bias circuit. The feedback circuit is configured ...
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WO/2020/144039A1 |
An electrical amplifier comprising a differential preamplifier (PA) having a first output port and a second output port; a first output unit connected to the first output port of the differential preamplifier and a second output unit con...
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WO/2020/145710A1 |
An apparatus is provided. The apparatus includes an electronic circuit for processing a differential signal. A device including an electronic circuit may include a first inductor and a second inductor that process a differential signal, ...
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WO/2020/146287A1 |
Systems and methods are provided for improved noise performance of audio amplifiers. In one example, a system includes a multistage amplifier comprising at least a first stage amplifier and a second stage amplifier. The system further in...
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WO/2020/143934A1 |
A bias circuit (200) for a PA (100) is disclosed. It comprises a first transistor (M1) having its drain terminal and its gate terminal connected to a first circuit node (x) and its source terminal connected to a first supply terminal (GN...
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WO/2020/146504A1 |
Methods and devices addressing design of wideband LNAs with gain modes are disclosed. The disclosed teachings can be used to reconfigure RF receiver front-end to operate in various applications imposing stringent and conflicting requirem...
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WO/2020/141022A1 |
The present invention relates generally to the technical field of broad-band amplifiers for high data-rate wired/optical communications. The invention presents in this technical field a multiple resonance network. The multiple resonance ...
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WO/2020/140918A1 |
A receiver and a low-noise amplifier. The receiver comprises a main signal pathway and an auxiliary signal pathway, a combining circuit and an intermediate-frequency amplifying circuit, wherein the main signal pathway comprises a gate se...
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WO/2020/134418A1 |
Disclosed is an intermediate frequency amplifier based on a GaAs pHEMT process, the amplifier comprising: an input matching unit, a cascode amplification unit, an output matching unit and a feedback unit, wherein the input matching unit,...
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WO/2020/138896A1 |
An electronic device including an amplifier which includes a first transistor configured to receive an input signal through a gate terminal thereof and having a source terminal electrically connected to ground, a second transistor config...
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WO/2020/133459A1 |
Disclosed are a method and device for controlling a phase modulator, a cancellation circuit, and a feedforward power amplifier. The method comprises: acquiring a current cancellation coefficient of a cancellation circuit; determining a t...
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WO/2020/138830A1 |
The disclosure discloses a digital predistortion (DPD) device and method. The DPD device comprises a predistorter configured to obtain a predistortion component from a digital baseband signal using a predistortion parameter and output th...
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WO/2020/139443A1 |
A digital envelop tracker for a power amplifier. The digital envelop tracker includes a supply filter for filtering a supply voltage to a power amplifier, a level selection circuitry configured to determine a level of supply voltage base...
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WO/2020/129184A1 |
A class AB amplifier (A200) is provided with: an active load stage (AL210) which receives a first input current (IIM) and a second input current (IIP), and converts the respective input currents into a first voltage (Vgpn) and a second v...
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WO/2020/131432A1 |
Apparatus and method (200) for dynamically linearizing multi-carrier power amplifiers (105). The method (200) includes determining a first carrier configuration of an RF transmitter (100) during a first timeslot of operation of the RF tr...
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