Wideband Reconfigurable Reflectarray Based on Reflector-Backed Second-Order Bandpass Frequency Selective Surface
- Resource Type
- Article
- Authors
- Li, Huan; Qi, Xiaokang; Zhou, Tianyi; Xu, Zhiwei; Denidni, Tayeb A.
- Source
- IEEE Transactions on Antennas and Propagation; December 2022, Vol. 70 Issue: 12 p12334-12339, 6p
- Subject
- Language
- ISSN
- 0018926X; 15582221
In this communication, a wideband reconfigurable reflectarray based on reflector-backed active second-order bandpass frequency selective surface (FSS) is presented. The reflector is composed of periodic short-circuited parallel plate waveguide (PPW) and the FSS is composed of stacked non-resonant metallic elements separated by thin dielectric substrates. By integrating microwave varactors in the capacitive layers of FSS, more than 270° continuous phase tunability is achieved within a fractional bandwidth of 14%. A 1-D reflectarray prototype operating at C-band is fabricated and measured. The experimental results show that it can achieve ±55° beam scanning coverage. Symmetric beam steering is observed due to the center-fed configuration. With advantages of low cost and simple structure, the proposed reflectarray can be potentially used in wideband wireless communication and radar systems.