High Resolution Direction Finding using a Switched Parasitic Antenna.

Thomas Svantesson (Chalmers) , Mattias Wennström,

9th COST 260 Meeting , Gothenburg, May 2-5, 2001

Abstract:

Direction finding by exploiting the directional radiation patterns of an Switched Parasitic Antenna (SPA) is considered. By employing passive elements (parasites), which can be shorted to ground using pin diodes, directional radiation patterns can be obtained. The direction finding performance of the SPA is examined by calculating a lower bound on the direction finding accuracy, the Cramer-Rao lower Bound (CRB). It is found that the SPA offers a compact implementation with a high-resolution direction finding performance using only a single radio receiver. Thus, exploiting SPAs for direction finding is an interesting alternative to traditional antenna arrays offering compact and low-cost antenna implementations.

Source:

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