A Compact Split Ring Monopole Antenna (SRMA) for WLAN/WAVE/ITU Band Applications

This paper proposes a compact polygon shaped split ring monopole antenna (SRMA) for 2.4/5.0/5.9/7.0 GHz WLAN/WAVE/ITU band applications. The single ring polygon split ring resonator (SRR) structure makes the antenna design simple and compact compared with conventional dual ring SRRs. A wideband behavior is achieved in the upper frequency band by the use of multiple similar edges of polygon and the added stubs to the split ring structure. The crucial antenna parameters are optimized through a parametric study. The total size of the proposed antenna is 25x18x1.6 mm(3). The simulated antenna characteristic shows that the proposed SRMA has adequate bandwidth of 23% and 54% at each operating band. Further, significant bandwidth, good impedance matching and uniform radiation characteristics are observed.