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A Study on Optimization of a Multi-Layered Metallic Disk Array Structure for Shaping of Flat-Topped Element Patterns  

엄순영 (한국전자통신연구원)
박한규 (연세대학교 전기전자공학과)
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Abstract
In this paper, a study on optimization of three dimensional multi-layered metallic disk array structure(MDAS) excited by circular waveguides was performed to shape efficient flat-topped element patterns(FTEP) of ${\pm}$20$^{\circ}$ beam width. Each radiating element of the MDAS is composed of input, transition and radiation circular waveguides and finite metal disks stacked on radiation circular waveguide. It has an array structure of a hexagonal lattice appropriate for the conical beam scanning. The analytic algorithm for the MDAS was proposed and the code was also programmed using it. Optimal design parameters of the MDAS were determined through the optimal simulation process to obtain ${\pm}$20$^{\circ}$ FTEP. Also, bandwidth characteristics for FTEP and reflection coefficients of the MDAS were investigated and, as the results, it was shown that the MDAS could shape good FTEPs of ${\pm}$20$^{\circ}$ beam width in main planes at least within a 5.6 % frequency band.
Keywords
Array Antenna; Flat-Topped Element Pattern; Multi-Layered Disk Array Structure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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