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This paper describes a planar single-layer rectangular-slot antenna, fed by a microstrip ending in a fork-shaped tuning stub, for wireless ultra-wideband (UWB) communications. The realized prototype exhibits a stable bidirectional gain pattern in the 3.1–10.6-GHz UWB. Moreover, the antenna is “nondispersive” and minimizes the distortion of the transmitted pulsed signals at different azimuth and elevation angles.
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Sorbello et al. (2005) studied this question.
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