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In this paper, we describe a single antenna microwave ing technique that makes use of time-reversal concepts. The time-domain experiments have shown that by using single antenna and time-reversal technique, we can have focusing as well as ing at any point in space. We have done experiments at 2.45 GHz in a cylindrical cavity environment. The degree of ing (or focusing) depends on the multipath components in the channel as well as the bandwidth of the signal. The cavity provides a multipath rich-environment where we can show focusing and ing by using a relatively small bandwidth compared to free space.
Date of Conference: 12-17 June 2005