Excitation of UHF radio waves in tunnels
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Y. P. Zhang; G. X. Zheng; J. H. Sheng
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Article
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1999
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John Wiley and Sons
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English
β 122 KB
π 2 views
This letter deals with the excitation of UHF radio wa¨es in tunnels. It is found that the antenna position and the antenna gain are two major factors that affect the excitation of radio wa¨es in tunnels. The antenna in the middle position and with high gain is preferable. Furthermore, the enhancemen