Hybrid GB and PO analysis of electromagnetic radiation/scattering from large reflector antennas with tapered impedance surfaces

A hybrid scheme combining Gaussian beam (GB) and physical optics (PO) approaches is presented for an efficient analysis of reflector antennas with tapered‐impedance edge boundaries. The reflecting surface is divided into an interior portion with uniform impedance and a smooth boundary, where the GB...

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Bibliographic Details
Published in:Microwave and optical technology letters 2004-07, Vol.42 (1), p.34-37
Main Authors: Chou, Hsi-Tseng, Tuan, Shih-Chung, Hsiao, Yu-Ting
Format: Article
Language:English
Subjects:
Gaussian beam
physical optics
reflector antennas
tapered impedance surface
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Summary:A hybrid scheme combining Gaussian beam (GB) and physical optics (PO) approaches is presented for an efficient analysis of reflector antennas with tapered‐impedance edge boundaries. The reflecting surface is divided into an interior portion with uniform impedance and a smooth boundary, where the GB approach can be employed, and an exterior portion of tapered impedance, which is analyzed by the PO approach. The high efficiency of the GB analysis potentially accelerates the entire analysis, as compared with the case in which only PO is employed. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 34–37, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20198
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.20198