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Matches 201 - 250 out of 51,674

Document Document Title
WO/2019/056275A1
A programmable gain amplifier (400A) includes an operational amplifier (402A) and a resistor network (405A) coupled to the output node (404A) of the operational amplifier. The resistor network includes a first plurality of resistors (410...  
WO/2019/060535A1
Exemplary impedance matching circuit for an amplifier device comprises a broadband impedance transformer configured to transform, over a fundamental frequency range, an impedance associated with an input port or an output port of the imp...  
WO/2019/054980A1
Systems, circuitries, and methods for predistorting a digital signal in a transmit chain based on a predistortion function are provided in which the function is determined based on a first digital signal or a first transmit chain state. ...  
WO/2019/048065A1
An amplifier circuit (70) that comprises a first and a second field-effect transistor (M1, M2) of the same type is disclosed. It further comprises an input terminal (in) connected to the gate of the second field-effect transistor (M2), a...  
WO/2019/049035A1
A microelectronic sensor for biometric authentication of a user is based on the combination of an open-gate pseudo-conductive high-electron mobility transistor and a Vivaldi antenna installed in the open gate area of the transistor. The ...  
WO/2019/048045A1
According to an aspect, there is provided a method for power-amplification of a transmission signal, comprising: obtaining the transmission signal with phase and amplitude modulation; generating a power-amplified polar signal for approxi...  
WO/2019/049034A1
A microelectronic sensor for non-invasive monitoring of glucose levels in blood is based on the combination of an open-gate pseudo-conductive high-electron mobility transistor and a Vivaldi antenna installed in the open gate area of the ...  
WO/2019/045817A1
A programmable gain amplifier may include: (a) a differential amplifier having first and second input terminals and first and second output terminals, the differential amplifier providing an output signal of the programmable gain amplifi...  
WO/2018/031347A8
A circuit including a radio frequency (RF) amplifier including a transistor configured to receive an RF signal at its control terminal, a capacitor coupled to a first terminal of the transistor, an inductor coupled to a second terminal o...  
WO/2019/043434A1
Systems and methods are disclosed herein for selectively compensating for a specific Intermodulation Distortion (IMD) product(s) of an arbitrary order in a transmitter system. In some embodiments, a method of compensating for one or more...  
WO/2019/017779A3
The present invention relates to a radio-frequency (RF) power amplifier system for amplifying an RF signal. The present invention further relates to a telecommunications base station and a solid state cooking apparatus comprising such an...  
WO/2019/045866A1
Certain aspects of the present disclosure are directed to a digital predistortion (DPD) device for use within a wireless transmitter that permits the use of a downstream digital-to-analog converter that operates at a clock rate close to ...  
WO/2019/045867A1
Certain aspects of the present disclosure are directed to digital predistortion (DPD) for use with a multi-chain wireless transmitter. In various examples described herein, the multi-chain transmitter is configured to use a single common...  
WO/2019/043359A1
This application relates to time-encoding modulators (301,700) having a self-oscillating modulator module configured to receive an input signal and output a pulse-width modulated signal (SPWM) where the pulse-width modulated signal is sy...  
WO/2019/039245A1
An operational amplifier 1 comprises transistors Q1 and Q2 forming an input stage, and input resistors R1 and R2 which form a filter together with parasitic capacitors C1 and C2 accompanying the transistors Q1 and Q2. Resistance values R...  
WO/2019/039650A1
The present invention relates to a Doherty combiner used in a Doherty power amplifier, the Doherty combiner comprising: a phase shift section connected to one end of a carrier amplifier so as to change a phase of an RF signal output from...  
WO/2019/036479A1
An analyte sensor incorporates one or more techniques for discriminating between different optical signals. In one embodiment, the sensor includes a photodetector that detects a narrow band optical signal. In another embodiment, the sens...  
WO/2019/033377A1
A radio frequency power amplifier is disclosed. The radio frequency power amplifier includes a conducting pattern which includes a shunt composite resonator including a plurality of sub-spiral resonators for a plurality of adjacent harmo...  
WO/2019/036303A1
Methods and systems for waveguide delay based equalization with optical splitting in optical communication may include an optoelectronic circuit comprising an input waveguide, a directional coupler, an optical delay, photodetectors, a cu...  
WO/2019/036499A1
Apparatus and methods for a no-load-modulation power amplifier are described. No-load-modulation power amplifiers can comprise multiple amplifiers connected in parallel to amplify a signal that has been divided into parallel circuit bran...  
WO/2019/031553A1
A cascode amplifier circuit (101) includes: a first transistor circuit (MM1) in which a signal is externally inputted into a signal input unit (Pi); a load circuit which is connected between the first transistor circuit (MM1) and a power...  
WO/2019/029890A1
According to the invention, an input stage (50) for an LVDS receiver circuit (100) is provided, comprising at least one supply voltage connection (41) and a first and a second stage input (11, 12) for applying a differential input signal...  
WO/2019/030518A1
An error amplifier for a pulse width modulation circuit is described. The amplifier includes an operational amplifier configured as an integrator and a feedback loop coupled between a signal output of the operational amplifier and an inv...  
WO/2019/031731A1
The present invention relates to an electronic device and a method for controlling an amplifier on the basis of the state of the electronic device. According to various embodiments of the present invention, the electronic device comprise...  
WO/2019/029827A1
A method comprises obtaining a transmission signal to be power-amplified in a power amplifier (361) prior to transmission; separating the transmission signal into two or more polyphase components of the transmission signal; feeding one o...  
WO/2019/026412A1
This RF signal generation device is provided with: an RF signal generation unit 102 which performs pulse modulation on a predetermined signal such that the predetermined signal has four or more valued discrete output levels and the lowes...  
WO/2019/026669A1
Problem: Proposed is an effective technique for making a filter of an ET output unit smaller in a wireless device for amplifying wireless output using an ET scheme. Solution: A wireless device, comprising: a primary amplifier 251 for amp...  
WO/2019/026315A1
A distortion mitigation quantizer circuit includes a pre-quantizer to generate a first quantized signal having L output signal levels from an input signal and a digital pulse-width-modulation (PWM) circuit to modulate the first quantized...  
WO/2019/021841A1
A high-frequency circuit (10) is provided with: a power amplification circuit (11); a first switch (13) having a first common terminal (131) to which an output signal of the power amplification circuit (11) is applied and first terminals...  
WO/2019/021709A1
A clock synchronization signal generator (40) generates a dead time at which both gates of two switching elements included in a switching circuit (52) go into an off state, and generates the dead time for controlling a plurality of pulse...  
WO/2019/019058A1
Disclosed in the present application is a dynamic amplifying circuit, comprising: a first driving circuit, used for receiving a first control signal and generating a first voltage signal and a second voltage signal; a second driving circ...  
WO/2019/016256A1
A circuit arrangement comprises a first input node (11), a first output node (21), a sampling capacitor means (Cs, Cs1, Cs2) and a first switching means being switchable between a first switching state and a second switching state. The f...  
WO/2019/016280A1
The invention concerns an audio amplifier circuit comprising: an audio amplifier (308) adapted to operate at a common-mode voltage level (VCM) and having an input node for receiving an audio signal (y[n], VIN) and an output (310) capable...  
WO/2019/015274A1
A two-line structure-based inverse class-F power amplifier, comprising an input port (P1), a stabilization circuit (4), an input matching circuit (3), a GaN tube (2), a two-line output matching network (1), and an output port (P2). The t...  
WO/2019/018363A1
An amplifier may include a first stage configured to receive an input signal at an amplifier input and generate an intermediate signal which is a function of the input signal, and a final output stage configured to generate an output sig...  
WO/2019/017779A2
The present invention relates to a radio-frequency (RF) power amplifier system for amplifying an RF signal. The present invention further relates to a telecommunications base station and a solid state cooking apparatus comprising such an...  
WO/2019/018646A1
Systems and methods that cancel distortion in the amplified outputs of a node by equalizing the distortion characteristics amplifiers in the node, so as to improve the effectiveness of predistortion applied to a downstream signal amplifi...  
WO/2019/015667A1
A power amplifier. The power amplifier comprises: an input end (210), used to input at least two signals of different frequencies; a power tube (220), used to perform power amplification on the at least two signals input by the input end...  
WO/2019/014909A1
A multistage Doherty power amplifier and a transmitter are provided, and the multistage Doherty power amplifier includes: a generalized carrier amplifier (201), which is a nested 2-way inverted Doherty sub amplifier, and a generalized pe...  
WO/2019/015275A1
A two-wire inverse class F power amplifier, comprising an input port (P1), a stabilizing circuit (4), an input matching circuit (3), a GaN transistor (2), a two-wire output matching network (1), and an output port (P2). The two-wire outp...  
WO/2019/010512A1
The invention relates to a process for modifying an input signal, preferably an audio signal, comprising the splitting of the input signal into at least a first input part and a second input part, the amplification of at least the first ...  
WO/2019/014326A1
Certain aspects of the present disclosure provide methods and apparatus for current-limiting protection of an amplifier (401), such as a power amplifier in a radio frequency (RF) front-end. One example current-limiting circuit generally ...  
WO/2019/014422A1
Disclosed are implementations, including a method for monitoring a performance of a transmitter in a radio with an adjustable digital predistortion system. The method includes determining a plurality of system characteristics, including ...  
WO/2019/012934A1
The present invention achieves a digital amplifier which minimizes and limits analog signal system and utilizes a feedback signal and a dither signal. Provided are: a pulse width modulator (18) for adjusting the pulse width of a digital ...  
WO/2019/012691A1
An MIM capacitor (7) is included in a first matching circuit (4) and/or a second matching circuit (5). The MIM capacitor (7) matches the impedance of a fundamental wave in a high-frequency signal with that of a transmission line (8), and...  
WO/2019/007295A1
Disclosed in the present invention are a radio frequency power amplifier based on current detection feedback, a chip, and a communication terminal. The radio frequency power amplifier comprises multiple stages of amplifier circuits and a...  
WO/2019/008627A1
This amplifying device is provided with: a self-excited class-D amplifier circuit including a modulation circuit in which pulse modulation by self-excited oscillation is performed on an acoustic signal; and an operation control unit that...  
WO/2019/008628A1
This amplifying device is provided with: a self-excited class-D amplifier circuit including a modulation circuit in which pulse modulation by self-excited oscillation is performed on an acoustic signal, wherein a synchronous signal synch...  
WO/2019/007294A1
Disclosed in the present invention are a radio frequency power amplifier based on power detection feedback, a chip, and a communication terminal. The radio frequency power amplifier comprises multiple stages of amplifier circuits and at ...  
WO/2019/008730A1
The source electrode of a first transistor (6a), and the source electrode of a second transistor (6b) are connected to a first grounding point (14), the source electrode of the second transistor (6b), and the source electrode of a third ...  

Matches 201 - 250 out of 51,674