信息与电子工程2012，Vol.10Issue(1)：72-76,5.
一种改变交叉耦合极性的新方法
A new method of changing the polarity of cross-coupling
徐巍 1贾宝富 1谭成环1
作者信息
- 1. 电子科技大学物理电子学院,四川成都610054
- 折叠
摘要
Abstract
This paper proposes a new method to implement change of polarity of cross-coupling in microstrip cross-coupling filter and cavity cross-coupling filter by the use of transmission line. To realize the cross-coupling between the source and a nonadjacent resonator by using a transmission line with an electrical length of 180° in microstrip cross-coupling filter, can make the polarity of cross-coupling change from capacitive to inductive. Using a transmission line with an electrical length about 180° in cavity cross-coupling filter, transmission zero can be shifted from upper stopband to lower stopband. A discussion of the effects of different electrical length transmission line on cross-coupling is presented. The positions of transmission zeros can be controlled by adjusting the lengths of transmission lines to improve the rejection level. With this proposed method, transmission zeros can be positioned arbitrarily using the same coupling structure, which makes the filter design more flexible.关键词
交叉耦合/传输线/交叉耦合极性Key words
cross-coupling/transmission line/polarity of cross-coupling分类
信息技术与安全科学引用本文复制引用
徐巍,贾宝富,谭成环..一种改变交叉耦合极性的新方法[J].信息与电子工程,2012,10(1):72-76,5.
