Field of a short dipole above a dielectric half-space with rough interface

NCU Institutional Repository > 資訊電機學院 > 電機工程學系 > 期刊論文 > Item 987654321/107232

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://ir.lib.ncu.edu.tw/handle/987654321/107232

题名:	Field of a short dipole above a dielectric half-space with rough interface
作者:	丘增杰;Chiu, Tsenchieh;Sarabandi, Kamal
贡献者:	資訊電機學院電機工程學系
关键词:	arbitrary dielectric profile;arbitrary observation point;bistatic scattering;classical Sommerfeld problem;coherent field;Coherent scattering;dielectric ground plane;dielectric half‐space;dielectric materials;dielectric media;Dielectrics;Dipoles;electromagnetic wave polarisation;electromagnetic wave propagation;electromagnetic wave scattering;Exact solutions;Half spaces;HF‐UHF frequencies;incoherent scattered power;induced polarisation current;integral equation;interface profile height variations;irregular terrain features;Irregularities;low‐power communication systems;Microwave antennas;perturbation solution;plane wave;Plane waves;radiowave coverage;rough surface;short dipole;surface roughness
日期:	2015-01-01
上传时间:	2026-04-23 14:01:32 (UTC+8)
出版者:	Institution of Engineering and Technology;The Institution of Engineering and Technology
摘要:	摘要： The accurate prediction of radiowave coverage at high frequency-ultra high frequency over irregular terrain features is of importance in the design and development of low-cost and low-power communication systems. This study studies the problem of electromagnetic wave propagation, excited by a short dipole, above a dielectric ground plane with an arbitrary dielectric profile and an irregular interface. This investigation is a natural extension of the classical Sommerfeld problem with the exception of the random surface irregularities at the interface between the two dielectric media. It is assumed that the interface profile height variations are small compared with the wavelength. First, the bistatic scattering of a plane wave illuminating the rough surface is solved using a perturbation solution of an integral equation for the induced polarisation current. Analytical expressions for the coherent field and incoherent scattered power at an arbitrary observation point are obtained. Then, the solutions for the coherent and incoherent scattered power generated by a small dipole of arbitrary orientation and position are derived by expanding the field of the dipole in terms of a continuous spectrum of plane waves and using superposition. The effects of the rough interface on the surface waves and on depolarisation are studied. 出版者： The Institution of Engineering and Technology 出版日期： 2015-01-09 出處： IET microwaves, antennas & propagation, 2015-01, Vol.9 (1), p.31-40 資源來源： Wiley Online Library Open Access 版權： The Institution of Engineering and Technology 版權： 2015 The Institution of Engineering and Technology 識別號： ISSN: 1751-8725 識別號： ISSN: 1751-8733 識別號： EISSN: 1751-8733 識別號： DOI: 10.1049/iet-map.2013.0498
显示于类别:	[電機工程學系] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	24	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....