Low Cost Direction Finding with the Electronically Steerable Parasitic Array Radiator (ESPAR) Antenna

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dc.contributor.author Berger, Jonathan Michael
dc.date.accessioned 2006-10-27T13:39:20Z
dc.date.available 2006-10-27T13:39:20Z
dc.date.issued 2006-10-27T13:39:20Z
dc.identifier.uri http://hdl.handle.net/10539/1499
dc.description Faculty of Engineering and the Built Environment; School of Electrical and Information System; MSC Dissertation en
dc.description.abstract In this paper, the Electronically Steerable Parasitic Array Radiator (ESPAR) antenna, developed by the Advanced Telecommunications Research Institute (ATR) in Japan was analyzed to determine its feasibility as a low cost direction finding (DF) system. Simulations of the antenna were performed in SuperNEC and Matlab was used to determine the direction of arrival (DOA) using the Reactance Domain multiple signal classification (MUSIC) algorithm. Results show the ideal configuration has 6 parasitic elements with a diameter of 0.5 . Up to 5 periodic, uncorrelated signals spread 360° in azimuth and above 45° elevation produce sharp peaks in the MUSIC spectra. Azimuth separations of only 2° at 40 dB are resolvable while signals arriving with 25% full power are still detectable. For the DOA to be resolved the radiation pattern should be asymmetrical and hence the reactance set should have a range of unequal values. Comparative results show that the 6 element ESPAR offers excellent overall performance despite the reduction in cost and is comparable in performance to the 6 element uniform linear array. en
dc.format.extent 16927153 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.subject ESPAR en
dc.subject Electronically Steerable Parasitic Array Radiator en
dc.subject ATR en
dc.subject Advanced Telecommunications en
dc.subject Research Institute en
dc.title Low Cost Direction Finding with the Electronically Steerable Parasitic Array Radiator (ESPAR) Antenna en
dc.type Thesis en


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