利用简单复合左右手传输线实现的任意双频器件

Realization of Arbitrary Dual-Band Components Using Simplified Composite Right/Left-Handed Transmission Lines

将传统的复合左右手传输线中的串联电容去除,得到一种更加紧凑、更容易实现的简单结构复合左右手传输线。它与一般右手传输线相比仍具有非线性相移特性,利用该特性可以实现任意双频的微波器件。本文设计制作了工作在900/1800MHz的双频四分之一波长短路短截线、双频Wilkinson功分器。仿真和实测结果证明了其双频特性。

The simplified structures of composite right/left-handed transmission lines（CRLH TLs） are more compact and are easier to be realized by just taking away the series capacitors of the conventinoal CRLH TLs. Compared to the conventinoal right-handed transmission lines（RH TLs）, they are still charactered with nonlinear phase responses. Arbitrary dual-band components have been realized using the characteristics. We design and fabricate a dual-band ,λ / 4 short circuit stub and a dual-band Wilkinson power divider, both operating at 900/1800 MHz. The dual-band characteristic has been demonstrated by simulated and measured results.