NDLI: Incorporation of feed-network modeling into the time-domain finite element analysis of antennas

Content Provider	IEEE Xplore Digital Library
Author	Rui Wang Hong Wu Cangellaris, A.C. Jian-Ming Jin
Copyright Year	2007
Description	Author affiliation: Univ. of Illinois at Urbana-Champaign, Urbana (Rui Wang; Hong Wu; Cangellaris, A.C.; Jian-Ming Jin)
Abstract	In this paper, a numerical approach to incorporating a feed-network modeling into the TDFEM analysis of antennas is described. In this approach, a feed network is considered as a multi-port linear passive system, which is connected to the source and the antennas solely through several ports. Based on an appropriate numerical method, a simplified circuit model for this system can be established and analyzed (or optimized) using a circuit simulation method. Based on such analysis, a reduced-order model can be developed, which captures the important characteristics of the original feed network. This reduced-order model, in the form of a pre-calculated reduced-order admittance matrix, is then hybridized with the TDFEM through a feed port and a time convolution to provide excitation to the antennas as well as to receive the reflected fields from the antennas and feed back into the feed network. In this paper, the formulation for this proposed method is given in the following section. Two simple radiation examples are presented to validate this formulation.
Starting Page	3520
Ending Page	3523
File Size	216275
Page Count	4
File Format	PDF
ISBN	9781424408771
DOI	10.1109/APS.2007.4396297
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Time domain analysis Finite element methods Antenna feeds Reduced order systems Receiving antennas Reflector antennas Optimization methods Circuit simulation Admittance Convolution
Content Type	Text
Resource Type	Article

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