Summary
International Symposium on Antennas and Propagation
2015
Session Number:S3.4
Session:
Number:S3.4.6
A Single Beam Smart Antenna for Underground Mine Communications
Herman Kunsei, K. Pirapaharan, K.S. Senthilkumar, P.R.P Hoole,
pp.-
Publication Date:2015/11/9
Online ISSN:2188-5079
Summary:
Multipath reflections are prevalent in underground mine wireless communications systems and are less constructive when an omnidirectional antenna is used. This phenomena can be significantly controlled by eliminate the source of all multipath with a single beam. The single beam must be rotatable towards the desired user to be of any use. The single directed beam will avoid generating multipath reflections and efficiently consume the valuable stored energy. In this paper we present an analysis of an array antenna using dipoles that forms a singlebeam without the need for reflectors or complex arrangement of the array elements.It can be shown that dipole elements placed in a straight line is not effective in minimizing energy consumption and a minimumof three elements are sufficient for forming a single directed beam that is electronically rotatable to all directions. We have compared three,four and six elements for the accuracy.