基于肖特基二极管的四次谐波混频器
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作者单位:

1.中国科学院国家空间科学中心 微波遥感技术重点实验室,北京 100190;2.中国科学院大学,北京 100049;3.南京信息工程大学 电子与信息工程学院,江苏 南京;210044

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中图分类号:

TN454, TN773.2

基金项目:


Design of a 670 GHz fourth-harmonic mixer based on Schottky diode
Author:
Affiliation:

1.Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;2.University of Chinese Academy of Sciences, Beijing 100049, China;3.School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China

Fund Project:

the National Key Research and Development Program of China 2017YFC0803601Supported by the National Key Research and Development Program of China (2017YFC0803601)

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    摘要:

    针对冰云探测设备的预研,详细介绍了一款基于肖特基二极管的低变频损耗670 GHz四次谐波混频器.为了提升混频效率,采用两级紧凑微带共振单元(CMRC)本振低通滤波器来抑制射频信号、本振三次谐波及二次谐波混频产物.由于本振频率仅为射频频率的四分之一,大大降低了本振链路的复杂度和成本.测试结果表明,在640~700 GHz频带内单边带变频损耗为16.7~22.1 dB,在665 GHz最优单边带变频损耗为16.8 dB.

    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 presented. 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 (), the third harmonic of LO signal(), 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 Single-Side-Band (SSB) conversion loss is between 16.7 dB to 22.1 dB from 640 GHz to 700 GHz at room temperature. The minimum conversion loss is 16.8 dB at the RF frequency of 665 GHz.

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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]. JI Guang-Yu, ZHANG De-Hai, MENG Jin, YAO Chang-Fei. Design of a 670 GHz fourth-harmonic mixer based on Schottky diode[J]. J. Infrared Millim. Waves,2019,38(6):695~700.]

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  • 收稿日期:2019-06-10
  • 最后修改日期:2019-11-14
  • 录用日期:2019-08-19
  • 在线发布日期: 2019-12-06
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