Abstract
ABSTRACT A CPW-fed, C-shaped antenna is designed for Ultra-wideband (UWB) applications. In the proposed design, there is a wide slot in the ground plane in such a way that the C-shaped radiator accommodates within that slot. Moreover, two slots have been cut on either side of the lower ground plane to down the return loss from 10 dB. The dimension of the antenna is 25 mm × 25 mm × 1.6 mm which is etched on the FR4 dielectric material having a loss tangent of 0.02 and a dielectric constant is 4.4. The bandwidth of the antenna is 9 GHz (3–12 GHz) or, 120%. The designed antenna can be used for broadcasting purposes because its E-fields radiation pattern is almost omnidirectional in a lower range of frequencies. Therefore, this designed antenna can be used in the upper-frequency band (3–6 GHz) of Wi-Fi communications.
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