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复合左/右手传输线(CRLH TL)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.
Composite Left / Right Hand Transmission Line (CRLH TL) is an ultra-electromagnetic medium that combines the properties of left-handed and right-handed materials, and is singularly regarded by scientists and engineers. In the field of microstrip antennas, composite left / right hand transmission lines The structure can be used in the design of feed network, radiating element and background medium.With compound left / right hand transmission line structure as feeding circuit and radiating element at the same time, the coaxial line and the radiating patch are well matched and the antenna’s dual frequency Radiation Characteristics The purpose of adjusting the antenna resonant frequency is achieved by loading a gap in the ground plane of the compound left / right hand transmission line antenna.