Multilevel fast physical optics algorithm for radiation from non-planar apertures

被引：29

作者：

Boag, A ^{[1
]}

Letrou, C

机构：

[1] Tel Aviv Univ, Sch Elect Engn, IL-69978 Tel Aviv, Israel

[2] INT, GET, CNRS, UMR 5157,Lab SAMOVAR, F-91011 Evry, France

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2005年 / 53卷 / 06期

关键词：

computation time; fast algorithms; lens antennas; multilevel algorithms; physical optics; radomes; reflector antennas;

D O I：

10.1109/TAP.2005.848502

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 novel multilevel algorithm for computing the radiation patterns of nonplanar aperture antennas over a range of observation angles is presented. The proposed technique is directly applicable to reflector and lens antennas as well as to radomes. The multilevel computational sequence is based on a hierarchical decomposition of the. radiating aperture and comprises two main steps. First, computation of the radiation patterns of all subapertures of the finest level over a very coarse angular grid. Second, multilevel aggregation of the radiation patterns of neighboring subapertures into the final pattern of the whole aperture via a phase compensated interpolation. The multilevel algorithm attains computational complexity comparable to that of the fast Fourier transform based techniques while avoiding their limitations.

引用

页码：2064 / 2072

页数：9

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