Simple and compact slot-patch antenna with broadband circularly polarized radiation

초록

A simple and compact broadband circularly polarized antenna has been designed, fabricated, and characterized. This antenna consists of a circular slot etched in the ground plane on one side of the substrate, and a semicircular patch with a microstrip feedline on the other side. The total substrate size is 38 x 38 x 1.52 mm(3). The measured -10 dB impedance bandwidth is 116.6% (2.37-9 GHz) and the measured 3 dB axial-ratio bandwidth is 58.7% (3.22-5.9 GHz), covering the 3.5 GHz WiMAX band and the 5.2/5.8 GHz WLAN bands. The measured peak gain is 6.18 dBic at 5.8 GHz. This antenna is suitable for multiservice wireless systems covering both WiMAX and WLAN. (c) 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1634-1641, 2016

키워드