A compact slot UWB antenna with CPW-fed

A simple and novel compact CPW-fed slot antenna which has small dimension of (25×l4 mm
²
) is proposed for Ultra-Wideband applications. The special is inner antenna which also has smaller dimension of (7×5 mm
²
). To miniaturize the antenna size, the accessional ground planes and staircase shape antenna are introduced. The proposed planar coplanar waveguide fed antenna is easy to be integrated with radio-frequency /microwave circuitry for low manufacturing cost. The optimal dimensions can be achieved by a parametric analysis. The designed antenna operates over 3.0 to 10.9 GHz for VSWR ≤ 2. The antenna also shows omnidirectional radiation patterns and that is suitable for UWB applications.