Abstract
A rectangular slot antenna for UWB applications is proposed in this paper. The slot is designed in stepped conflguration and is excited by an L-shaped microstrip line ∞ared at the end. The measured impedance bandwidth (i10dB) from 3GHz to 27GHz is achieved. The radiation patterns are bidirectional in the E plane and omnidirectional in the H plane with the measured peak gain around 5dBi throughout the band. The experimental results are in good agreement with the simulated results. A detail parametric study is done for the ∞are angle and the ∞are width to axis ratio and their efiect on the impedance bandwidth and the re∞ection coe-cient is described.
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