ELECTROMAGNETIC-FIELD NEAR FOCUS OF WIDE-ANGULAR LENS AND MIRROR SYSTEMS

被引：36

作者：

SHEPPARD, CJR ^{[1
]}

CHOUDHURY, A ^{[1
]}

GANNAWAY, J ^{[1
]}

机构：

[1] UNIV OXFORD,DEPT ENGN SCI,OXFORD OX1 3PJ,ENGLAND

来源：

IEE JOURNAL ON MICROWAVES OPTICS AND ACOUSTICS | 1977年 / 1卷 / 04期

关键词：

LENSES; -; MIRRORS;

D O I：

10.1049/ij-moa.1977.0015

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The time-averaged electric energy density near the focus of a parabolic mirror of wide-angular aperture is calculated and compared with that of an aplanatic lens system. The distributions exhibit great differences, the mirror showing a greater departure from circular symmetry, a more complicated structure and increased sidelobes. The vectorial integral representation of Wolf is derived from the Stratton-Chu formula.

引用

页码：129 / 132

页数：4