一种W波段低损耗宽带单平衡混频器设计  

Design of a W-band low-loss broadband single-balanced mixer

作　　者：王立权 居闽 柴娟芳 韩志强 张颖 WANG Liquan;JU Min;CHAI Juanfang;HAN Zhiqiang;ZHANG Ying(Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China;Shanghai Aerospace Science and Innovation Development Co.,Ltd.,Shanghai 201109,China)

机构地区：[1]上海机电工程研究所,上海201109 [2]上海航天科创企业发展有限公司,上海201109

出　　处：《空间电子技术》2023年第2期34-39,共6页Space Electronic Technology

基　　金：上海市航天科技创新基金(编号:SAST2020-005)。

摘　　要：针对某型半实物仿真系统大带宽、高动态的技术需求,研制了一种覆盖整个W波段的单平衡混频器。混频器基于波导-石英混合电路以及分立肖特基二极管设计,射频信号经减高波导同相激励两个肖特基结,以减少无源电路的额外损耗。本振信号通过波导E面探针输入,以准TEM模反相激励肖特基结。测试结果表明,所设计混频器在13dBm本振功率激励下,可在75~110GHz范围内实现6~8dB的单边带变频损耗,中频带宽为DC~35GHz。该混频器与国内外同类高性能产品技术性能相当,已成功应用于W波段半实物仿真系统中。A single balanced mixer covering full W-band was designed for a hardware in the loop(HIL)simulation system to achieve large bandwidth and dynamic range.The mixer was designed with waveguide-quartz hybrid circuit and a discrete Schottky diode.Two Schottky junctions were excited in-phase with the radio frequency(RF)signal through height-reduced waveguide,so the additional loss of passive circuits can be reduced.With E-plane probe,the local oscillator(LO)signal was coupled with quasi-TEM mode,thus the two Schottky junctions were driven out of phase.The measured single sideband(SSB)loss is 6~8dB over the 75~110GHz range with 13dBm LO power,and the intermediate frequency(IF)bandwidth is DC~35GHz.The mixer has comparable technical performance with similar high-performance products at home and abroad,and has been successfully applied in the W-band HIL simulation systems.

关 键 词：W波段 单平衡混频 宽带 低变频损耗 

分 类 号：TN454[电子电信—微电子学与固体电子学] V443[航空宇航科学与技术—飞行器设计]