PLANE-POLAR NEAR-FIELD TO FAR-FIELD TRANSFORMATION WITH 3 KINDS OF FOURIER-BESSEL EIGENVALUE EXPANSIONS

被引:0
|
作者
CAO, C [1 ]
VANLIL, E [1 ]
VANDECAPELLE, A [1 ]
VANTKLOOSTER, K [1 ]
机构
[1] ESA ESTEC,ANTENNA SECT,NOORDWIJK,BELGIUM
关键词
MATHEMATICAL TECHNIQUES; ELECTROMAGNETIC FIELDS; RADIATION; BOUNDARY CONDITIONS;
D O I
10.1049/ip-h-2.1991.0078
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An accurate way to compute near-field to far-field transformations by expanding the near-field into a Fourier-Bessel series is presented. All previous studies based on Fourier-Bessel expansions make use of a zero boundary eigenvalue condition. The other two boundary conditions (derivative, linear) are also studied and all the three boundary condition expansions are compared from a viewpoint of accuracy and efficiency in both the near-field and the far-field. The influence of the sampling density in the near-field measurement is also investigated.
引用
收藏
页码:463 / 468
页数:6
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