In this paper, four printed wide-slot antenna fed by a microstrip line with a polygonal slot for bandwidth enhancement
is proposed and experimentally studied. One of these antennas is fabricated and measured. Impedance, radiation and gaincharacteristics
of this antenna are presented and discussed. From experimental results, the measured impedance bandwidth,
defined by 10-dB return loss, can reach an operating bandwidth of 4.03 GHz at operating frequencies from approximately
1.87 to 5.90 GHz.
