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提出了一种新型的基于复合左右手(CRLH)结构的微带天线,其结构单元绕天线贴片中心周期排列。讨论了天线各结构参数的变化对天线辐射特性的影响,并对其进行了全波仿真和优化,结果显示该天线相对带宽达到26%,半功率波瓣宽度达到±45°。
A novel microstrip antenna based on composite left and right hand (CRLH) structure is proposed, whose structural elements are arranged periodically around the center of antenna patch. The influence of various structural parameters of the antenna on the radiation characteristics of the antenna is discussed. The full-wave simulation and optimization are carried out. The results show that the relative bandwidth of the antenna reaches 26% and the half-power lobe width reaches ± 45 °.