Modeling radiation with an efficient hybrid finite-element integral-equation waveguide mode-matching technique

被引：10
|
作者：
Zuffada, C
Cwik, T
Jamnejad, V
机构：
[1] Jet Propulsion Laboratory, California Institute of Technology, Pasadena
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1997年 / 45卷 / 01期
基金：
美国国家航空航天局;
关键词：
mode-matching methods; electromagnetic radiation;
D O I：
10.1109/8.554238
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A method is presented to model electromagnetic radiation, combining the finite-element technique in the penetrating portion of a three-dimensional (3-D) radiating structure with an integral equation on the outer surface of the computational domain, and with a waveguide mode-matching technique on a cross section of the feeding waveguide. The antenna can be of general shape, provided a portion of the surrounding medium up to a surface of revolution is chosen as part of the computational domain, This truncation scheme and the accurate source representation are more general than those existing in the literature for radiation modeling, An open-ended waveguide and a waveguide with a choke ring are analyzed and their radiation patterns are obtained and compared with available measurements.
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页码：34 / 39
页数：6
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