红外与毫米波学报, 2015, 34 (3): 314, 网络出版: 2015-08-25  

基于肖特基二极管改进模型的W波段宽带八次

Design of W-band eighth harmonic mixer for broadband operation based on an improved model of Schottky diode model
作者单位
东南大学 毫米波国家重点实验室, 江苏 南京 210096
摘要
在对肖特基二极管电磁模型和电路模型精确建模的基础上, 设计并制作了W波段宽带八次谐波混频器.通过对肖特基二极管物理结构的分析, 建立了其精确的三维电磁仿真模型和直到180GHz的改进的宽带等效电路模型.针对W波段八次谐波混频器混频产物能量分布特点和工作带宽要求, 设计了宽带射频和本振匹配网络, 使混频器的工作带宽能覆盖整个W波段.测试结果显示, 射频信号在75~110GHz频率范围内, W波段八次谐波混频器最大变频损耗28dB, 最小变频损耗18dB.
Abstract
Based on the accurate electromagnetic model and an improved equivalent circuit model of Schottky diode, the design and fabrication of a W-band eighth harmonic mixer for broadband operation is presented in this paper. With the analysis of the Schottky diode physical structure, a three-dimensional electromagnetic model and an improved equivalent circuit model up to 180GHz were established. According to the mixing product energy distribution characteristics and bandwidth requirements, broadband RF and LO matching networks were designed, which extend the mixer operation bandwidth to the entire W-band. The measurement result indicates that the conversion loss of the W-band eighth harmonic mixer is less than 28dB in the range of 75~110GHz, and the minimum is 18dB.

丁德志, 徐金平, 陈振华. 基于肖特基二极管改进模型的W波段宽带八次[J]. 红外与毫米波学报, 2015, 34(3): 314. DING De-Zhi, XU Jin-Ping, CHEN Zhen-Hua. Design of W-band eighth harmonic mixer for broadband operation based on an improved model of Schottky diode model[J]. Journal of Infrared and Millimeter Waves, 2015, 34(3): 314.

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