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An Investigation of the Electromagnetic Field Surrounding a Leaky Feeder in a Tunnel.

Critchley, B. L. (1977) An Investigation of the Electromagnetic Field Surrounding a Leaky Feeder in a Tunnel. Doctoral thesis, University of Surrey (United Kingdom)..

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Abstract

This thesis presents some practical results of the typical electromagnetic field distributions surrounding a leaky feeder in a tunnel. Amplitude and phase variations parallel to the feeder are investigated in order to provide a greater understanding of the mechanism of leakage. The possibility of locating a distant transmitter is examined and the prospects seem encouraging. Directional diversity is also considered as a means of reducing the effect of signal drop-outs. Finally, a detailed examination of the field distribution within a small volume of the tunnel is given. Although this is, primarily, of academic interest it can be used as a guide for determining preferable antenna orientation for optimum performance.

Item Type: Thesis (Doctoral)
Divisions : Theses
Authors : Critchley, B. L.
Date : 1977
Additional Information : Thesis (M.Phil.)--University of Surrey (United Kingdom), 1977.
Depositing User : EPrints Services
Date Deposited : 30 Apr 2019 08:08
Last Modified : 20 Aug 2019 15:32
URI: http://epubs.surrey.ac.uk/id/eprint/851377

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