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A novel compact open-ended L-shaped slot antenna with asymmetrical rectangular patch is demonstrated and designed for UWB applications. With the open-ended L-shaped slot and an asymmetrical rectangular patch fed by the micro-strip line, multiple resonant frequencies are excited and merged to form a measured widen operating bandwidth of 3.01 » 11.30GHz with 10dB return loss. The fractional bandwidth can be enhanced from previous 32% (3 » 4.15GHz) to 112% (3 » 10.66GHz) among three difierent antenna types in simulations. The details and vital parameters of the proposed slot antenna are also illustrated. In addition, the proposed slot antenna exhibits a small size of 25 £ 25mm 2 , which makes it an excellent candidate for UWB systems and portable applications.

COMPACT OPEN-ENDED L-SHAPED SLOT ANTENNA WITH ASYMMETRICAL RECTANGULAR PATCH FOR UWB APPLICATIONS