ON THE ACCURACY OF THE UTD FOR THE SCATTERING BY A CYLINDER

被引：7
|
作者：
PAKNYS, R
机构：
[1] Department of Electrical and Computer Engineering, Concordia University, Montreal
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1994年 / 42卷 / 05期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1109/8.299580
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：
The UTD formulation for the scattering by a cylinder is valid for antennas that are removed from the cylinder surface. The usual guideline is that reliable results can be obtained for antennas that are about lambda/4 or more away from the surface. By exploring a few cases, we show that lambda/4 is unnecessarily large for the lit region and sometimes too small for the shadow region. In addition, we find that with a simple heuristic modification to the UTD, heights as small as lambda/20 can be accommodated, with an accuracy that is sufficient for most engineering applications.
引用
收藏
页码：757 / 760
页数：4
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