MNG传输线带通滤波器设计  

Design of Bandpass Filter in MNG Transmission Line

作　　者：赵国华[1] 杨辉[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《现代电子技术》2011年第1期17-19,22,共4页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(NSFC60301004)

摘　　要：为了以更简单的结构、更少的电路元件实现更好的左手媒质特性,设计了一种新型磁负介质传输线(MNG)。该传输线具有负的磁导率和正的介电常数,是对传统混合左右手(CRLH)传输线理论上的扩展和设计上的改进。采用该MNG传输线设计了一个切比雪夫带通滤波器,获得任意可调的双频带特性,其仿真和测量结果吻合很好,验证了MNG传输线的设计理论。该MNG传输线所具有的非线性相位响应特性,可以实现耦合器、滤波器、双模天线等多种新颖的可调双频带微波器件的设计。A novel magnetic negative media （MNG） transmission line is presented in this paper to realize a better left-hand medium characteristic which is achieved with a more simple structure and fewer circuit elements. The novel single negative transmission line with negtive permeability and possitive dielectric constant is the theoretical expansion and design modification for the traditional composite right/left-handed （CRLH） transmission line. A Chebyshev microwave bandpass filter is designed with the MNG transmission line to obtain a characteristic of compact arbitrary tunable dual band. The good coincidence with the simulation and measurement results verifies the MNG transmission line theory. The design of various novel tunable dual band microwave devices such as couplers, filters, dual-mode antennas and so on can be implemented with the property of the nonlinear phase response of MNG transmission line.

关 键 词：微波技术 左手介质 混合左右手传输线 磁负传输线滤波器 

分 类 号：TN925-34[电子电信—通信与信息系统]