曲面EBG结构表面波带隙特性研究  

Study of Surface Wave Band-Gap Feature of Curved Electromagnetic Band-gap Structure

作　　者：刘涛[1] 曹祥玉[1] 余侃民[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《空军工程大学学报（自然科学版）》2008年第2期56-59,共4页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60671001);陕西省自然科学基金资助项目(2005F21);西安市工业攻关项目(GG06020);空军工程大学电讯工程学院博士创新基金资助项目(200603)

摘　　要：研究了3种典型EBG结构在曲面上表面波带隙特性,利用悬置微带线法,分析了曲面EBG结构带隙特性与其结构参数及曲率的关系。结果表明,曲率对表面波带隙的影响不是太明显,只是带隙中心频率有稍微的下降,介电常数与介质厚度对带隙影响规律与平面上一致。这一结论对在圆柱共形天线上应用高阻表面结构有一定的指导意义。The surface wave band -gap characteristics for three typical curved EBG structures are studied in this paper. Using the suspending micro - strip method, the effect of curved EBG structure parameters and curvature on band - gap characteristics is analyzed. The results show that the effect of curvature is lesser, and only the center frequency of band - gap is slight decreased. The effect of substrate permittivity and dielectric thickness on band - gap characteristics is in agreement with that of the planar structure parameters. This conclusion is of certain guided significance in applying such kind of surface structures to cylindrical conformal antennas.

关 键 词：电磁带隙 表面波带隙 曲率 圆柱共形天线 

分 类 号：TN015[电子电信—物理电子学]