UHF radio propagation characteristics in straight open-groove structures

Author

Zhang, Y.P. ; Hwang, Y. ; Parsons, J.D.

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong

Volume

48

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

249

Lastpage

254

Abstract

The imperfect waveguide method is used to study UHF radio propagation characteristics in open-groove structures with particular interest being devoted to the frequency characteristics of the propagation attenuation constant. Attenuation of propagation has been characterized by the surrounding media absorption, the roughness of the sidewall, and the sidewall tilt. Our study shows that attenuation due to the surrounding media absorption is inversely proportional to the square of the frequency, whereas that due to the roughness on the sidewall surfaces is inversely proportional to the frequency and that due to the sidewall tilt is directly proportional to the frequency. The imperfectness of the actual open groove structures will cause additional electromagnetic mode conversion, thus increasing the propagation loss. The theoretical results are in agreement with the experimental data

Keywords

UHF radio propagation; electromagnetic wave absorption; rough surfaces; waveguide theory; UHF radio propagation characteristics; electromagnetic mode conversion; frequency characteristics; imperfect waveguide method; propagation attenuation constant; propagation loss; sidewall roughness; sidewall tilt; straight open-groove structures; surrounding media absorption; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Frequency; Optical propagation; Optical surface waves; Optical waveguides; Rough surfaces; Surface roughness; UHF propagation;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.740100

Filename

740100