OPTIMIZATION OF PLANAR DEVICES BY THE FINITE-ELEMENT METHOD

被引:20
作者
GARCIA, P [1 ]
WEBB, JP [1 ]
机构
[1] MCGILL UNIV,DEPT ELECT ENGN,COMPUTAT ANAL & DESIGN LAB,MONTREAL H3A 2A7,QUEBEC,CANADA
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1109/22.44155
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 [电气工程]; 0809 [电子科学与技术];
摘要
The finite element method has been shown to be an efficient and flexible way of computing the scattering parameters of N-port planar devices (microstrip. stripline, rectangular waveguide, etc.). In addition, it can provide at little extra cost the sensitivity of scattering parameters to changes in the shape of the device. Such information may be useful in itself; it also leads to a faster automatic optimization of the shape. This approach has been implemented with high-order, triangular finite elements and the Broyden-Fletcher-Goldfarb-Shanno optimization scheme. Sensitivities were computed for an empty parallel-plate waveguide and for a rectangular waveguide containing a dielectric slab: the agreement with analytical solutions was excellent. The method was used to determine the optimum shape of a microstrip 3 dB hybrid and was found to require far fewer analyses than a previous technique [2]. © 1990 IEEE
引用
收藏
页码:48 / 53
页数:6
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