BANDWIDTH ENHANCEMENT OF A COPLANAR WAVEGUIDE-FED ASYMMETRICAL SLOT ANTENNA WITH A RECTANGULAR PATCH

摘要

A coplanar waveguide-fed asymmetrical slot antenna with a rectangular patch for bandwidth enhancement is demonstrated. By attaching a rectangular patch to the monopole radiating element, a good performance of bandwidth enhancement for the antenna is achieved. From simulational and experimental results, the enhanced impedance bandwidth of the proposed antenna, defined by -10 dB return loss, can reach 13.1 GHz, from 2.4 to 15.5 GHz, or about 146% with the center frequency 8.95 GHz, which makes it an excellent candidate for the ultra wideband (UWB, 3.1-10.6 GHz) applications.