Circularly polarized 2 × 2 MIMO antenna for WLAN applications

Abstract

A 2 × 2 circularly polarized (CP) MIMO antenna is proposed to resonate at 5.8 GHz IEEE 802.11 WLAN band for non-line of sight (NLOS) communication. The proposed design achieves circular polarization with two optimized 90◦ apart rectangular slots etched at the center of a truncated rectangular patch. The proposed MIMO covers 5.49–6.024 GHz frequency band. The achieved isolation between two ports is more than 33 dB. The gain at the 5.8 GHz resonant frequency is 5.34 dBi. The diversity performance in terms of gain, ECC, and MEG has been reported.