Mr Ashwin Sankaranarayanan

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Performance Analysis for Wideband Antenna Arrays based on Tapped – Delay Lines This dissertation is a part requirement for the degree in MSc in Data Communications at

Department of Electrical and Electronics Engineering
Karthick Sekar
7 September, 2012
Supervisor: Dr. Wei Liu

All sentences or passages quoted in this dissertation from other people's work have been specifically acknowledged by clear cross-referencing to author, work and page(s). Any illustrations which are not the work of the author of this dissertation have been used with the explicit permission of the originator where possible and are specifically acknowledged. I understand that failure to do this amount to plagiarism and will be considered grounds for failure in this dissertation and the degree examination as a whole

Name: Karthick Sekar

The success of examining the bandwidth performance of a wideband antenna array relies on the optimal performance of each element present to signal processing. This is examined in terms of the direction of arrival (DOA) i.e. the direction of the interfering signals (desired signal and desired interference signals) and the interspacing between the tapped delay and length of the taps with the weights. The performance of the bandwidth is examined for a two element adaptive array with the use of the tapped delay line technique by keeping each element behind the tapped delay line. When a tapped delay line is introduced, the signal to noise-interference ratio improves for various signal bandwidths resulting in an increase of sensor numbers in the structure of the narrowband beam former and by varying the length of the tapped delay lines (TDL’s) to obtain a well known wideband beamforming structure. These TDL’s along with traditional linear array combine well to form an effective and well known beam form. “The characteristics are in such a way that they form a beam effectively with its azimuth range of over half and its response...
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