# Metasurface-based dual-sense circularly polarized antenna for MIMO/full-duplex applications

## TL;DR

This paper presents a new antenna design using metasurfaces for improved performance in wireless communication systems.

## Contribution

A novel dual-sense circularly polarized antenna with metasurface for MIMO and full-duplex applications is introduced.

## Key findings

- The antenna achieves a wide operating bandwidth of 14.5%.
- It provides high isolation of better than 26 dB.
- The design is suitable for MIMO and full-duplex applications.

## Abstract

This paper introduces a two-element antenna array with dual-sense circular polarization, wideband operation, and high isolation characteristics. The antenna consists of two conventional truncated corner patches and an extra layer of metasurface (MS) located above the radiating patches. The overall dimensions of the proposed antenna are 0.92 λ0 × 0.73 λ0 × 0.05 λ0 and the element spacings are 0.02 λ0 and 0.39 λ0 with respect to edge-to-edge and center-to-center spacings. For validation, measurements on a fabricated antenna prototype are carried out. The measured data demonstrate that the presented MS-based antenna has a wide operating bandwidth of 14.5% with high isolation of better than 26 dB. The excellent performance could be concluded from the results of the investigation, which indicates that the proposed MS-based antenna could be a good candidate for multiple-input multiple-output (MIMO) and full-duplex applications.