Abstract
In this paper, a Co-planar waveguide (CPW) fed wide bandwidth slot antenna is proposed for UWB applications. The antenna consists of a rectangular slot modified at both side of the CPW feed forming two symmetrical step like ground structure. The proposed antenna structure is simulated by using Finite element Method based ANSOFT HFSS electromagnetic simulation software and characterized by return loss, radiation pattern and gain response. The proposed antenna exhibits an impedance bandwidth from 3.46 GHz to 10.48 GHz that gives a fractional bandwidth of 101% with return loss less than or equal to 10 dB (VSWR≤ 2). The maximum available gain is 4.5dBi in the broad side direction.
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