公开(公告)号：US20210376818A1

公开(公告)日：2021-12-02

申请号：US16885973

申请日：2020-05-28

Applicant: RAYTHEON COMPANY

Inventor： Ajay Subramanian ,  Zhaoyang C. Wang ,  Matthew A. Morton ,  Jack Holloway ,  John Cangeme

IPC: H03H17/02

Abstract: A finite impulse response (FIR) filter including an input of the FIR filter that receives an RF input signal, a clock input configured to receive a clock signal, an output of the FIR filter that provides a filtered output signal, a plurality of signal paths including a plurality of sample-and-hold circuits and a plurality of multipliers arranged in parallel, each signal path including a respective sample-and-hold circuit and a respective multiplier being configured to receive the RF input signal and the clock signal to provide a modulated output signal, an adder configured to receive n modulated output signals from the plurality of signal paths and combine the n modulated output signals to produce the filtered output signal, and a controller.

公开(公告)号：US20160373074A1

公开(公告)日：2016-12-22

申请号：US15175610

申请日：2016-06-07

Applicant: Raytheon Company

Inventor： John P. Bettencourt ,  Alan J. Bielunis ,  Istvan Rodriguez ,  Zhaoyang C. Wang

IPC: H03F3/195 ,  H03F3/213

CPC classification number: H03F3/195 ,  H03F1/301 ,  H03F1/303 ,  H03F3/193 ,  H03F3/213 ,  H03F3/72 ,  H03F2200/18 ,  H03F2200/258 ,  H03F2200/27 ,  H03F2200/451 ,  H03F2203/7203

Abstract: A circuit having an amplifier, comprising: a depletion mode transistor having a source electrode coupled to a reference potential; a drain electrode coupled to a potential more positive than the reference potential; and a gate electrode for coupling to an input signal. The circuit includes a bias circuit, comprising: a current source; and biasing circuitry coupled to the current source and between the potential more positive than the reference potential and a potential more negative than the reference potential. A control circuit is connected to the current source for controlling the amount of current produced by the current source to the biasing circuitry.

Abstract translation: 一种具有放大器的电路，包括：耗尽型晶体管，具有耦合到参考电位的源电极; 耦合到比参考电位更正的电位的漏电极; 以及用于耦合到输入信号的栅电极。 该电路包括偏置电路，包括：电流源; 以及耦合到电流源并且在比参考电位更正的电位和比参考电位更负的电位的偏置电路。 控制电路连接到电流源，用于控制由电流源产生的电流量到偏置电路。