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Study on the scattering characteristics of a new type of periodic dielectric structures
mode-matching method;Floquet's theory;scattering characteristic;bi-grating.
|Issue Date: ||2012-05-29T01:23:23Z
A mode-matching technique in conjunction with the Floquet’s theorem is employed in this research to analyze the scattering characteristics of a new type of periodical structures for TE incident waves. The work of this project is divided into four parts. In the first part, the periodic dielectric structures with staircase, single as well as double crisscross and "I"-shaped profiles are studied. In the second part, the scattering characteristics of similar periodical structures as those studied in the first part but with a ground plane in the bottom layer will be analyzed. Results obtained from both cases will be compared. For the third part, a metallic strip is added on top surface of each period to construct a strip grating with a periodic dielectric substrate. The effects of varying the metallic strip width, thickness, and position on the scattering characteristics are examined. Finally, a bi-grating structure with metallic strip placed also in one of the inner dielectric layers is studied. Analysis similar to that of single grating
structure will be performed. Results obtained in this research are expected to serve as useful references for researchers and designers working in this field.
|Relation: ||計畫編號:NSC90-2213-E018-001; 研究期間:200108-200207|
|Appears in Collections:||[電子工程學系] 國科會計畫|
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