Multiband Quasi-Yagi Antenna without Airgap for 5G Wireless Applications

Abstract

A multiband Yagi antenna with coaxial feed suitable for 5G & wireless local area networks (WLAN) has been presented. This antenna offers four resonant bands centered at 2.11GHz, 5.4GHz, 6.55GHz, and 8.55GHz with front-to-back (FBR) ratios corresponding to E-plane radiation patterns at four resonant frequencies are 10dB, 5.5dB, 7dB, 5.5dB respectively. The gain values corresponding to these operating bands are 5dB, 3.7dB, 2.6dB, and 3.3dB. Four operating bands offer an impedance bandwidth of 42.6%, 14.8%, 7.63%, and 22.22%.