Bandwidth enhancement of a printed wide-slot antenna with small slots

摘要

In this paper, four printed wide-slot antenna fed by a microstrip line with a polygonal slot for bandwidth enhancementis proposed and experimentally studied. One of these antennas is fabricated and measured. Impedance, radiation and gain-characteristics 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 approximately1.87 to 5.90 GHz.