Scattering by a right-angled lossy dielectric wedge

被引：18

作者：

Demetrescu, C ^{[1
]}

Constantinou, CC

Mehler, MJ

机构：

[1] Univ Birmingham, Sch Elect & Elect Engn, Birmingham B15 2TT, W Midlands, England

[2] BT Labs, Ipswich IP5 7RE, Suffolk, England

来源：

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION | 1997年 / 144卷 / 05期

关键词：

electromagnetic scattering; lossy dielectric wedges; diffraction coefficients;

D O I：

10.1049/ip-map:19971298

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：

Electromagnetic scattering by a right-angled lossy dielectric wedge at normal incidence is considered in detail. The lossy dielectric material of the wedge is simulated using second-order impedance boundary conditions on its faces. The Maliuzhinets method is employed to obtain the total exterior field, A high-frequency asymptotic approximation of the Sommerfeld integral is carried out to obtain a UTD expression for the total field, The predictions are validated against experimental measurements taken in a controlled laboratory environment. A comparison with the widely used heuristic UTD diffraction coefficient of Luebbers is presented and the validity of the latter coefficient is discussed.

引用

页码：392 / 396

页数：5

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