红外与毫米波学报2019，Vol.38Issue(6)：695-700,6.DOI:10.11972/j.issn.1001-9014.2019.06.003
基于肖特基二极管的四次谐波混频器
Design of a 670 GHz fourth-harmonic mixer based on Schottky diode
摘要
Abstract
For pre-research on ice cloud detection equipment,the design and test of a low conversion loss(CL) 4th-harmonic mixer working at the central frequency of 670 GHz based on an anti-parallel Schottky diode are pre-sented. In order to improve the mixing efficiency,a two-stage local-oscillator(LO)compact-microstrip-resonate-cell(CMRC)low-pass-filter(LPF)is utilized to suppress the second mixing item(f=|2*fLO - fRF|),the third harmonic of LO signal(f=3*fLO),and RF signal. The LO frequency is only one-quarter of the RF frequency which significantly reduces the complexity and cost of the LO chain. The measurement result shows that the Sin-gle-Side-Band(SSB)conversion loss is between 16. 7 dB to 22. 1 dB from 640 GHz to 700 GHz at room tempera-ture. The minimum conversion loss is 16. 8 dB at the RF frequency of 665 GHz.关键词
太赫兹混频器/肖特基二极管/四次谐波/紧凑微带共振单元(CMRC)Key words
terahertz mixer/Schottky diode/fourth-harmonic/compact-microstrip-resonate-cell分类
信息技术与安全科学引用本文复制引用
纪广玉,张德海,孟进,姚常飞..基于肖特基二极管的四次谐波混频器[J].红外与毫米波学报,2019,38(6):695-700,6.基金项目
Supported by the National Key Research and Development Program of China(2017YFC0803601) （2017YFC0803601）
