Broadband planar monopole antenna

Abstract

A novel kind of planar monopole antenna is experimentally presented for broadband applications. A square planar radiator is electromagnetically coupled with a probe-fed strip. The medium between the radiator and the strip is a thin dielectric slab. The parametrical effects on the bandwidth have also been examined experimentally. The proposed antenna is demonstrated to have an impedance bandwidth of 60% for a VSWR=1.5 and stable radiation patterns across the passband.