F波段宽带分谐波混频器设计  

Design of a broadband F-band sub-harmonic mixer

作　　者：徐奕 陈振华[1,2] 王晓燕 祁博宇[1] XU Yi;CHEN Zhenhua;WANG Xiaoyan;QI Boyu(School of Electronic and Information Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;Tianchang Research Institute,Nanjing University of Information Science&Technology,Tianchang 239300,Anhui Province,China;Lingyun Science and Technology Group Co.,Ltd.,Wuhan430040,China)

机构地区：[1]南京信息工程大学电子与信息工程学院,江苏南京210044 [2]南京信息工程大学天长研究院,安徽天长239300 [3]凌云科技集团有限责任公司,湖北武汉430040

出　　处：《电子元件与材料》2024年第10期1241-1249,共9页Electronic Components And Materials

基　　金：教育部产学合作协同育人项目(220903303013011)。

摘　　要：针对大带宽、低损耗的应用场景,研制了一款覆盖整个F波段(90~140GHz)的分谐波混频器。混频器采用国产分立二极管器件,以波导-石英混合集成电路形式实现。混频电路中所涉及的耦合探针、紧凑谐振滤波等结构均集成于厚度为127μm的单片石英基片上,通过设计高鲁棒性的直流接地回路以及紧凑谐振滤波单元,实现了整个石英基片的紧凑化及宽带混频特性。测试结果表明,所设计的分谐波混频器在12dBm本振功率激励下,可在90~140GHz频率范围内实现12~16d B的单边带变频损耗,本振和中频工作带宽分别为45~70GHz以及DC~15GHz,可以用于频谱扩展测量系统中。A sub-harmonic mixer(SHM)covering the full F-band(90-140GHz)was developed for broadband and lowloss applications.The SHM was designed using a domestic discrete Schottky diode and a waveguide-quartz hybrid integrated circuit process.The mixing circuit elements such as coupling probes and a compact filtering involved in the circuit structure were integrated on a single 127-μm-thick quartz substrate.By designing a highly robust direct current grounding structure and a compact resonant filter unit,a compact and broadband mixing performance on the entire quartz substrate was achieved.The measurement result shows that a single sideband(SSB)conversion loss of 12-16dB can be achieved in the 90-140GHz band under the drive of a 12dBm LO power.The LO and IF operating ranges are 45-70GHz and DC-15GHz,respectively.This SHM can be used in the extended spectrum measurement system.

关 键 词：F波段 分谐波混频器 混合集成电路 肖特基二极管 

分 类 号：TN773.2[电子电信—电路与系统]