利用复合左右手传输线实现的两种平行耦合线定向耦合器  

Two Novel Composite Right-/Left-Handed Coupled-Lined Directional Couplers

作　　者：王海涛[1] 张德斌[1] 凌天庆[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《微波学报》2008年第2期50-53,57,共5页Journal of Microwaves

摘　　要：采用紧凑的复合左右手传输线模型实现了两种新型平行耦合线定向耦合器。第一种定向耦合器为六端口双定向耦合器,形式为右手传输线/复合左右手传输线/右手传输线,通过调整传输线与传输线之间的距离,实现一分三等分功率分配器的功能;第二种定向耦合器是在普通定向耦合器中,用部分复合左右手传输线代替右手传输线,通过调整它们之间的比例,可以使得耦合端和输出端的输出相位相等。设计的两种定向耦合器,均已通过实测验证。Two novel Directional Couplers, composed of the conventional microstrip line and the composite right-/left- handed transmission line with more compact model, is presented. The first coupler which has six ports with the RH/CRLH/ RH form can be used as a trisecting power divider by adjusting the distance of the transmission line. In the second coupler, By replacing parts of conventional transmission lines with composite right-/left-handed transmission lines in directional coupler , the phenomenon that the output phases of coupling port and through port are equal can be observed. Both directional couplers are demonstrated experimentally.

关 键 词：定向耦合器 复合左右手传输线 左手材料 

分 类 号：TN811[电子电信—信息与通信工程]