Broadband planar monopole antenna
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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 pass-band.