Abstract
5G NR (new radio) FR1 range refers to as Sub-6 GHz band (410–7125 MHz and 3.4–6 GHz). In this paper, the frequency range of interest is from 3.4 to 6 GHz, as many cellular companies are focusing on this Sub-6 GHz band. A wideband circularly polarized (CP) antenna radiator is designed with diamond shape patches, fed by a microstrip line at the bottom through a rectangular shape wide slot on a ground plane. The proposed CP antenna covering a −10 dB bandwidth of 21.52 % (5.0–6.3 GHz) with 3-dB axial ratio (AR) bandwidth of 12.48 % (5.1–5.8 GHz). Furthermore, a metasurface-based lens (metalens) is designed for gain enhancement and fed by 3 × 1 array of the proposed CP antennas for multibeam operation. The lightweight dual-layer metasurface structure consisting of circular shape unit cell elements are used to implement the lens. For the proof-of-concept, the array of radiating elements is implemented and experimentally validated, which gives a ±18° beam scanning range with a maximum gain of 13dBic at 5.6 GHz.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
