A new approach for fast solution of electromagnetic scattering problems over a broad frequency band

Author

Chen, Ming-Sheng ; Wu, Qiong ; Huang, Zhi-xiang ; Wu, Xian-Liang

Author_Institution

Dept. of Phys. & Electron. Eng., Hefei Normal Univ., Hefei, China

fYear

2009

fDate

27-29 Oct. 2009

Firstpage

932

Lastpage

934

Abstract

A new adaptive algorithm based on the Maehly approximation theory is proposed to complete the scattering analysis over a broad frequency band. Firstly, the Chebyshev polynomial approximation for surface current is obtained by using method of moments at frequency points corresponding to the Chebyshev nodes. Secondly, the Chebyshev series are matched via the Maehly approximation to a rational function to improve the accuracy. Finally, an adaptive frequency-sweep analysis approach akin to the complex frequency hopping (CFH) technique is proposed to yield an accurate solution over the entire band.

Keywords

Chebyshev approximation; approximation theory; electromagnetic wave scattering; method of moments; rational functions; Chebyshev nodes; Chebyshev polynomial approximation; Chebyshev series; Maehly approximation theory; adaptive algorithm; adaptive frequency-sweep analysis; broad frequency band; complex frequency hopping; electromagnetic scattering problem; method of moments; rational function; scattering analysis; surface current; Adaptive algorithm; Algorithm design and analysis; Approximation methods; Chebyshev approximation; Electromagnetic scattering; Frequency; Impedance; Integral equations; Message-oriented middleware; Moment methods; Adaptive frequency-sweep analysis algorithm; Chebyshev series expansion; Maehly approximation;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4244-4076-4

Type

conf

DOI

10.1109/MAPE.2009.5355773

Filename

5355773