基于新颖宽带肖特基二极管模型的毫米波平衡式混频器设计(英文)  

Millimeter-wave balanced mixer based on a novel wide-band Schottky diode model

作　　者：牟进超[1] 吕昕[1] 于伟华[1] 

机构地区：[1]北京理工大学信息与电子学院,北京100081

出　　处：《红外与毫米波学报》2011年第5期385-389,450,共6页Journal of Infrared and Millimeter Waves

基　　金：The National Basic Research Program of China(2010CB327505)

摘　　要：介绍了一个用于混频器设计的肖特基二极管模型.根据二极管的物理结构,建立了三维电磁模型,并采用有限元法分析该模型.根据二极管中分布的寄生效应,建立了直到110 GHz的宽带等效电路.基于该等效电路,设计并优化了一个Ka频段的平衡式混频器.在32～37 GHz频率范围内,测试的变频损耗为7.5～10 dB.测试结果与仿真结果吻合地较好.A Schottky diode model for the mixer＇s design is presented in this paper.According to the physical structure of the Schottky diode,a novel 3D electromagnetic（EM） model was built and analyzed by finite element method.A wide-band equivalent circuit up to 110 GHz was proposed taking the parasitic effects distributed in the diode into account.Based on the proposed equivalent circuit,a Ka-band balanced mixer was designed and optimized.The measured conversion loss is 7.5 dB to 10 dB from 32 GHz to 37 GHz,which agreed well with the simulated one.

关 键 词：肖特基二极管 KA波段 平衡混频器 电磁模型 宽带等效电路 

分 类 号：TN454[电子电信—微电子学与固体电子学]