A concentrically corrugated near-field plate
A concentrically corrugated near-field plate
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同心波纹近场板
DOI：
10.1109/mwsym.2010.5517888
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
A. Grbic
中科院分区：
文献类型：
--
作者：
M. Imani;A. Grbic
提出了一种可形成亚波长近场聚焦的同心波纹近场板。实验板由一个由非周期性同心波纹包围的同轴孔组成。将测得的亚波长图案与具有相似尺寸的同轴探针产生的亚波长图案进行比较，结果显示其更窄。测量和模拟结果之间的良好协议进行了观察。最后，对板的频率响应进行了实验研究。该近场板在近场探测中有一定的应用前景。
We present a concentrically corrugated near-field plate which can form a subwavelength near-field focus. The experimental plate consists of a coaxial aperture surrounded by non-periodic concentric corrugations. The measured subwavelength patterns are compared to those created by a coaxial probe with similar dimensions and are shown to be narrower. Excellent agreement between measurements and simulated results is observed. Finally, the frequency response of the plate is experimentally studied. The presented near-field plate will find applications in near-field probing.