# Highly homogeneous zero-index metamaterials make devices more compact and perform better

## TL;DR

A new microwave material enables smaller, more efficient antennas by using a special ceramic with unique properties.

## Contribution

A novel homogeneous zero-index metamaterial using SrTiO3 ceramics is introduced for compact, high-performance microwave devices.

## Key findings

- The metamaterial enables a small-aperture high-directivity antenna.
- The material's properties improve device performance and compactness.

## Abstract

A highly homogeneous microwave zero-index metamaterial based on high-permittivity SrTiO3 ceramics is demonstrated to realize the small-aperture high-directivity antenna. Such a novel technique is a remarkable step forward to develop compact devices with better performance.