Full-Wave Leaky-Wave Analysis of 1-D Periodic Corrugated Metal Surface Antennas
Full-Wave Leaky-Wave Analysis of 1-D Periodic Corrugated Metal Surface Antennas
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DOI：
10.1109/lawp.2021.3065887
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发表时间：
2021-05-01
影响因子：
4.2
通讯作者：
Feresidis, Alexandros
中科院分区：
文献类型：
--
作者：
Kampouridou, Despoina;Feresidis, Alexandros
提出了一维宽间隙周期性波纹金属表面的全波漏波分析方法。这种宽的间隙，在半波长的顺序，被采用在最引用的设计波纹金属天线实现由于高可获得的增益性能。本文首次在波纹金属表面设计中描述并实现了一种全波周期单胞法。结果与已知的矩阵铅笔法进行了比较。复杂的色散特性验证了这些结构可以作为漏波天线工作。计算出的漏模波数然后用于有限尺寸天线的辐射方向图的解析计算，基于简单的阵列因子方法和模拟单元格电场的近场检查。计算得到的模式与商业模拟软件（CST Microwave Studio）得到的模式进行了比较，显示出非常好的一致性。
A full-wave leaky-wave analysis of 1-D periodically corrugated metallic surfaces with wide gaps is presented. Such wide gaps, in the order of half-wavelength, are employed in the most cited designs for corrugated metallic antenna implementation due to the high attainable gain performance. A full-wave periodic unit cell method is described and implemented on a corrugated metal surface design for the first time. The results are compared with the known matrix pencil method. The complex dispersion characteristics verify that these structures operate as leaky-wave antennas. The calculated wavenumber of the leaky mode is then used for the analytical calculation of the radiation patterns of a finite-size antenna, based on a simple array factor approach and a near-field inspection of the electric fields of the simulated unit cell. The calculated patterns are compared to those obtained from a commercial simulation software (CST Microwave Studio), exhibiting a very good agreement.