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Design and Near-Field Analysis of X-Band Linear/Circular Polarizer  

서창용 (충남대학교 전파공학과)
정명수 (충남대학교 전파공학과)
박동철 (충남대학교 전파공학과)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.15, no.8, 2004 , pp. 801-808 More about this Journal
Abstract
In this paper, we proposed the grating parallel plate waveguide structure for converting a linearly polarized wave to a circularly polarized wave. For the design of the polarizer, the moment method and Floquet's theorem are applied under two assumptions that the incident wave is a plane wave and the structure is infinitely periodic. In order for the more precise design, we performed the near-field analysis for the finite polarizer structure using MATLAB. By comparing with the measured results obtained by the near-field arrangement, we verified the correctness of our near-field analysis. By taking the ideal assumptions considered in the initial design procedure into account, newly designed modified dimensions for the polarizer was suggested which give improved performance.
Keywords
Polarizer; Grating Structure; Moment Method; Floquet′s Theorem; Near-Field Analysis;
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