Work

A 1-Bit Reconfigurable Reflectarray With Improved Gain Bandwidth for 6G Applications

Year: 2025

Type: article

Abstract: This letter presents a wideband 1-bit reconfigurable reflectarray (RRA) with significantly enhanced 1-dB gain bandwidth for C-band applications. The improved performance stems from a novel wideband aperture-coupled magnetoelectric (ME) dipole unit cell (UC), enabling a 35% bandwidth with a phase shift of$180^\circ \pm 20^\circ$, and an optimized phase distribution across the operating frequency band. The proposed RRA demonstrates a 1-dB gain bandwidth of 28.5% and a peak aperture efficiency of 21.2%. A rear-mounted control board further simplifies bias line routing and supports scalable array expansion.

Source: IEEE Antennas and Wireless Propagation Letters

DOI: 10.1109/lawp.2025.3619055

Authors: Quoc Duy Nguyen, Niklas Takanen, Muhammad Abdullah, Duy Tung Phan, Ping Jack Soh

Institution: University of Oulu

Language: English

Topic: Advanced Antenna and Metasurface Technologies

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,645

Funder: Academy of Finland