Truncation-Error Reduction in 2D Cylindrical/Spherical Near-Field Scanning

被引：16

作者：

Kim, Kristopher T. ^{[1
]}

机构：

[1] USAF, Div Electromagnet Technol, Sensors Directorate, Res Lab, Hanscom AFB, MA 01731 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2010年 / 58卷 / 06期

关键词：

Field expansion; near-field scanning; near-field to far-field transformation; Slepian functions; truncation error; BISTATIC RCS CALCULATIONS;

D O I：

10.1109/TAP.2010.2046850

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：

We introduce a near-field to far-field transformation for two-dimensional cylindrical/spherical scanning that significantly reduces angular-truncation errors. After examining the limitations of the traditional multipole-based expansion of truncated scan data, we consider an alternative expansion based on Slepian functions and show how far-field values can be extracted from the resulting expansion coefficients. We compare the performance and computational cost of the new transformation with those of the traditional one.

引用

页码：2153 / 2158

页数：6

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