ITEE seminar: Marcus Jacob, 11.00AM, Wed 19 Mar 2003
Investigation into adaptive antennas for Bluetooth
Speaker: Marcus Jacob, ITEE
When: 11.00AM, Wednesday 19 Mar 2003
Venue: 78-420
Host: Dr. Adam Postula
Abstract:
The goal of this work was the investigation of the capabilities of diversity antennas if used to counteract the problems of an indoor environment, specifically the problem of multi-path fading. A measurement set-up was developed using two Bluetooth modules. Performance can be assessed in real time and also be recorded in order to graph it over distance. Testing was done using a range of antennas imitating both, polarization and pattern diversity. It was proved that a digital domain measurement yields the expected pattern of an indoor environment. It can therefore be used as an indicator of performance. Furthermore it was shown that both methods, polarization switching and beam steering, help to improve performance in the case of multi-path fading where at least one linearly polarized antenna is used. However no general rule could be devised on which technique should be used in a given situation. Additionally there are some interesting points about a link using circular polarization. The presentation will not only show and explain the results but aslo give an introduction to the basic theory and demonstrate the measurement set-up and the used antennas .
Biography:
(biography unavailable)
Contact:
Dr. Adam Postula, seminar host (adam@itee.uq.edu.au)
or Guido Governatori (ITEE seminar co-ordinator)
(guido@itee.uq.edu.au)
ITEE seminar web page: http://www.itee.uq.edu.au/~seminar
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