Planar circular patch with elliptical slot antenna for ultrawideband communication applications

Abstract

ABSTRACT A novel microstrip slot antenna for ultrawideband (UWB) applications is presented. A circular patch with a tapered microstrip line above an elliptical slot ground plane is adopted for achieving a wide frequency bandwidth (BW). Two circular slots on the ground plane combined with two semicircular slots and four quasi‐triangular slots on the circular patch are designed for BW enhancement and decreasing the lower cut‐off frequency f L . An UWB antenna with a compact size of 300 × 300 mm 2 is obtained with relative BW of 187%, which covers 0.34–10.28 GHz. The simulation and experimental results are presented, demonstrating the UWB characteristics of the proposed antenna for wireless communication applications. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:325–328, 2015