DocumentCode :
3421354
Title :
Accurate modeling of wideband antennas using variable-fidelity simulations, kriging and parameterized response correction
Author :
Koziel, Slawomir ; Jacobs, J.P.
Author_Institution :
Sch. of Sci. & Eng., Reykjavik Univ., Reykjavik, Iceland
fYear :
2013
fDate :
9-13 Sept. 2013
Firstpage :
498
Lastpage :
501
Abstract :
A simple methodology for accurate modeling of wideband antennas is presented. Our approach exploits kriging interpolation of sampled coarse-discretization EM simulation data as an initial surrogate model. A parameterized response correction is subsequently used to improve this initial model with the correction coefficients obtained analytically, based on sparsely sampled high-fidelity EM simulations results of the antenna structure of interest. The resulting surrogate model is very fast, accurate, and, most importantly, it can be constructed at a low computational cost. The last feature makes is suitable for solving design tasks such as performance optimization. Our considerations are illustrated using an example of a broadband slot antenna.
Keywords :
broadband antennas; electromagnetic wave propagation; expectation-maximisation algorithm; interpolation; slot antennas; accurate wideband antenna modeling; antenna structure; broadband slot antenna; correction coefficients; design tasks; high-fidelity EM simulations; initial surrogate model; kriging interpolation; parameterized response correction; performance optimization; sampled coarse-discretization EM simulation data; variable-fidelity simulations; Broadband antennas; Computational modeling; Data models; Mathematical model; Microwave amplifiers; Microwave filters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation in Wireless Communications (APWC), 2013 IEEE-APS Topical Conference on
Conference_Location :
Torino
Type :
conf
DOI :
10.1109/APWC.2013.6624893
Filename :
6624893
Link To Document :
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