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.
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页码：392 / 396
页数：5
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