中文摘要：

在传统互补开环谐振（CSSRR）结构上添加T型枝节,形成一种新型复合左右手传输线（CRLH TL）。采用理论分析、电磁仿真和电路仿真研究其电磁特性,给出了单元结构的等效电路,计算了色散曲线,证明该结构是一种具有双频特性的CRLH结构。利用该结构设计、制作并测试了一种C波段四频微带天线,测试结果表明该天线具有较宽的阻抗带宽和很好的辐射特性。

英文摘要：

A new type of composite right/left handed（CRLH） transmission line is proposed by adding a T shaped branch to the traditional complementary single split ring resonator （CSSRR）. Through theory analysis, electromagnetic（EM） simulation and circuit simulation, the characterization is studied, the corresponding equivalent circuit model is given and the dispersion curve is derived. Then the CRLH structure with dual-band performance is proved. A quadruple-band micro-strip antenna working in C wave-band is designed, fabricated and measured using the new type CRI.H structure. Good performance in impendence band-width and radiation is verified by the measurement data.