一种小型化混合环及基于它的混频器设计  

A New Compact Hybrid Ring and Its Application in a Singly Balanced Mixer

作　　者：冯薪宇 丁玉宁[1] 

机构地区：[1]南京电子器件研究所,南京210016

出　　处：《固体电子学研究与进展》2015年第1期62-66,共5页Research & Progress of SSE

摘　　要：提出一种小型化混合环,它只有0.9倍中心频率导引波长,相比经典1.5波长混合环,电路面积有所减少。介绍了混合环的理论推导,并对比经典1.5波长混合环与0.9波长混合环的仿真结果,得到比较理想的结果。同时以0.9波长混合环为基础构建单平衡二极管混频器,在频段内变频损耗小于6dB,射频与本振端口隔离大于20dB,证明了其在实际电路中的使用价值。A new miniaturized hybrid ring was developed.Its circumference is only 0.9＊ of wavelength,as compared to the classical 1.5＊ one.Thus,the area of its circuit is decreased.Simple formula for hybrid ring S-parameters along with design consideration was introduced.Its simulation result is almost the same as the conventional hybrid ring′s.A singly balanced diode mixer using the new ring was also developed with less than 6dB of conversion loss and more than20 dB of RF-LO isolation at X band.Its effectiveness and feasibility is therefore proved in circuit application.

关 键 词：混合环 单平衡 混频器 小型化 

分 类 号：TN773[电子电信—电路与系统]