Wideband Bidirectional Planar Shorted Circular Monopole Antenna

In this paper, a Shorted Planar Circular Monopole Antenna (SPCMA) has been proposed for wideband wireless communication. The shorting strip reduces the size of this antenna. Also a modified CPW feed is designed to match with 50 Ω impedance line. The -10 dB return loss of SPCMA ranges from 0.83 GHz to 27.5 GHz, which means impedance bandwidth ratio almost 188%. The simulated results for different characteristics of this antenna have been shown using Finite Integration Technique (FIT) based commercial software CST studio. The simulated and measured return loss characteristics are in good agreement.