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提出了一种基于嵌入式弯曲线(EML)和互补金属开口谐振环(CSRR)结构的波导式双正-近零分层人工媒质,将其加载在微带贴片天线上以实现双频工作特性。理论分析以及仿真和实测结果表明:加载了分层人工媒质的双频微带天线,两个最低阶谐振模式分别是TM010和修正型TM020模式,且该天线在这两个谐振频点上具有比较一致的边射式辐射特性。本文提出的双频微带天线具有结构紧凑、易于用印刷电路板工艺进行一体化制造的优点。
A waveguide type bi-positive-near-zero layered artificial medium based on Embedded Bending Line (EML) and Complementary Metal-Opening Resonant Rings (CSRR) is proposed, which is loaded on microstrip patch antenna to realize dual-frequency operation characteristic. The theoretical analysis and simulation results show that the dual-band microstrip antennas with layered artificial media are loaded with two lowest-order resonant modes, TM010 and TM020, respectively, and the antenna has a comparison between the two resonant frequencies Consistent side-shoot radiation characteristics. The dual-band microstrip antenna proposed in this paper has the advantages of compact structure and easy integration with printed circuit board technology.