公开(公告)号：US20230238998A1

公开(公告)日：2023-07-27

申请号：US17877896

申请日：2022-07-30

Applicant: University of Electronic Science and Technology of China

Inventor： Bo Zhang ,  Zhongqian Niu ,  Xiaobo Yang ,  Bingli Dai ,  Yi Hu ,  Jicong Zhang ,  Yong Fan ,  Ke Liu ,  Zhi Chen

IPC: H04B1/40 ,  H03D7/16

CPC classification number: H04B1/40 ,  H03D7/165

Abstract: The present disclosure provides a hetero-integrated terahertz low-noise miniaturized image frequency rejection transceiver front-end, including an intermediate frequency circuit and a terahertz circuit arranged up and down, where the terahertz circuit includes a local oscillator frequency tripler, a 135° 3 dB filter coupler, a radio frequency waveguide power divider, and two quartz hetero-integrated subharmonic mixers; resonant cavities of an input unit, a first output unit, an isolation unit, and a second output unit of the 135° 3 dB filter coupler are sequentially coupled through resonant grooves to form a ring structure, a cavity length of the resonant cavity of the input unit is twice that of the resonant cavities of the other three units, and an electrical length of a waveguide of the first output unit is 45° different from that of a waveguide of the second output unit.

公开(公告)号：US20230238997A1

公开(公告)日：2023-07-27

申请号：US17873134

申请日：2022-07-25

Applicant: University of Electronic Science and Technology of China

Inventor： Bo Zhang ,  Zhongqian Niu ,  Xiaobo Yang ,  Bingli Dai ,  Yi Hu ,  Jicong Zhang ,  Yong Fan ,  Ke Liu ,  Zhi Chen

IPC: H04B1/40 ,  H03D7/16

CPC classification number: H04B1/40 ,  H03D7/165

Abstract: The present disclosure provides a GaAs monolithic integrated terahertz low-noise communication system transceiver front-end, including an intermediate frequency circuit and a terahertz circuit. The terahertz circuit includes a local oscillator frequency tripler, a local oscillator unidirectional 3 dB filter coupler, a radio frequency 180° filter coupler, and two terahertz GaAs monolithic integrated subharmonic mixers. The local oscillator unidirectional 3 dB filter coupler and the radio frequency 180° filter coupler each include one ring-cylindrical resonant cavity and four rectangular waveguides. The ring-cylindrical resonant cavity is divided into four rectangular waveguides which are correspondingly connected to the four sector-annular resonant cavities, respectively. The present disclosure suppresses the local oscillator noise by adopting a local oscillator unidirectional 3 dB filter coupler and a radio frequency 180° filter coupler with both coupling and filtering functions, thereby achieving a low local oscillator noise transceiver front-end.

公开(公告)号：US10310546B2

公开(公告)日：2019-06-04

申请号：US15730407

申请日：2017-10-11

Applicant: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Yindong Xiao ,  Guangkun Guo ,  Ke Liu ,  Junwu Zhang ,  Houjun Wang ,  Jianguo Huang ,  Shulin Tian

IPC: G06F1/02 ,  G06F15/78 ,  H03K4/02 ,  G01R31/28 ,  G10H1/12 ,  G06F1/03 ,  G06F13/28

Abstract: The present invention provides an arbitrary waveform generator based on instruction architecture. To deal with the feature that the instructions and waveform data of the AWG are coupled in the prior art, an instruction set based waveform synthesis controller is employed, and substitutes for the sequence wave generator in the present invention, i.e. an arbitrary waveform generator based on instruction architecture. Thus the time-sharing scheduling in reading the waveform synthesis instruction and the segment waveform data is realized, and the complexity of the hardware is reduced, so that the AWG in present invention can synthesize and generate a complex sequence wave rapidly and efficiently.

公开(公告)号：US12212357B2

公开(公告)日：2025-01-28

申请号：US17873134

申请日：2022-07-25

Applicant: University of Electronic Science and Technology of China

Inventor： Bo Zhang ,  Zhongqian Niu ,  Xiaobo Yang ,  Bingli Dai ,  Yi Hu ,  Jicong Zhang ,  Yong Fan ,  Ke Liu ,  Zhi Chen

IPC: H04B1/40 ,  H03D7/16

Abstract: The present disclosure provides a GaAs monolithic integrated terahertz low-noise communication system transceiver front-end, including an intermediate frequency circuit and a terahertz circuit. The terahertz circuit includes a local oscillator frequency tripler, a local oscillator unidirectional 3 dB filter coupler, a radio frequency 180° filter coupler, and two terahertz GaAs monolithic integrated subharmonic mixers. The local oscillator unidirectional 3 dB filter coupler and the radio frequency 180° filter coupler each include one ring-cylindrical resonant cavity and four rectangular waveguides. The ring-cylindrical resonant cavity is divided into four rectangular waveguides which are correspondingly connected to the four sector-annular resonant cavities, respectively. The present disclosure suppresses the local oscillator noise by adopting a local oscillator unidirectional 3 dB filter coupler and a radio frequency 180° filter coupler with both coupling and filtering functions, thereby achieving a low local oscillator noise transceiver front-end.