# Waveguide-Fed Lens Based Beam-Steering Antenna For 5G Wireless Communications

## TL;DR

This paper presents a simple, high-power, beam-steering cylindrical lens antenna for 5G at 28 GHz, achieving 58-degree scanning with stable gain and minimal deviation.

## Contribution

It introduces a novel cylindrical lens antenna design with constant plate separation, enabling effective beam-steering for 5G applications.

## Key findings

- Supports 58-degree beam steering at 28 GHz
- Achieves about 19 dB maximum gain
- Maintains 0.4 dB deviation over scan range

## Abstract

In this paper, a two-dimensional cylindrical Lens antenna based on the parallel plate technique is designed. It supports beam-steering capability of 58 degree at 28 GHz. The antenna is composed of low loss rectangular waveguide antennas, which are positioned around a homogeneous cylindrical Teflon lens in the air region of two conducting parallel plates. The Beam scanning can be achieved by switching between the antenna elements. The main advantages of our design include its relative simplicity, ease of fabrication, and high-power handling capability. Compared to previous works including a curvature optimization for the plate separation of the parallel plates, the proposed antenna has a constant distance between plates. At the 28 GHz, the maximum simulated gain value is about 19 dB. Furthermore, the designed antenna only deviates about 0.4 dB over the 58 degree scan range.