中文摘要：

复合左／右手传输线（CRLHTL）是一种兼具左手材料和右手材料性质的超电磁介质，其以奇异的特性受到科学界及工程界的重视．在微带天线领域，复合左／右手传输线结构可用于馈电网络、辐射单元，以及背景媒质的设计．采用复合左／右手传输线结构同时作为馈电电路及辐射单元，实现了同轴线与辐射贴片的良好匹配，以及天线的双频辐射特性．通过在复合左／右手传输线天线的接地板上加载缝隙，实现了调节天线谐振频率的目的．

英文摘要：

Composite right/left hand transmission line （CRLH TL） is one of metamaterials, which includes the properties of both right-hand materials and left-hand materials. And the composite right left hand TL has received substantial attention in the scientific and engineering communities. In the micro strip antenna domain, the CRLH TL can be used in three aspects that feed network, radiation unit and background medium. The CRLH TL is used both in feed network and radiation unit, which makes the antenna to matching the coax and to resonance in two frequencies. In the end, It is proved that it is possible to reduce the resonance frequency with upload slot on the ground of CRLH TL antenna.