Propagation of UHF radio waves in trapezoidal tunnels | Zendy

Zheng G. X. | Zendy; Sheng J. H. | Zendy; Zhang Y. P. | Zendy

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Propagation of UHF radio waves in trapezoidal tunnels

Author(s) -

Zheng G. X.,

Sheng J. H.,

Zhang Y. P.

Publication year - 1999

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/(sici)1098-2760(19990305)20:5<295::aid-mop4>3.0.co;2-k

Subject(s) - ultra high frequency , microwave , radio propagation , acoustics , radio wave , line of sight propagation , radio propagation model , electrical engineering , radio frequency , engineering , wave propagation , microwave transmission , physics , electronic engineering , telecommunications , optics , ground wave propagation

Measurements of the propagation of UHF radio waves in two trapezoidal tunnels are reported. Values of propagation loss in dB/100 m are given. It is found that the propagation attenuates at least 900 MHz. In addition, a portable FM radio system operating at 900 MHz is tested in one tunnel. It achieves a highly intelligible communication range of 230 m. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 20: 295–297, 1999.

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