manuscript.pdf (3.57 MB)
Download fileWideband Reconfigurable Reflectarray based on Reflector-backed Second-order Bandpass Frequency Selective Surface
preprint
posted on 2022-05-02, 15:19 authored by Huan LiHuan Li, Xiaokang QiXiaokang Qi, Tianyi zhou, Zhiwei Xu, Tayeb A. DenidniIn 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
o continuous phase tunability is achieved within a factional bandwidth of 14%. A one-dimensional reflectarray prototype operating at C band is fabricated and measured. The experimental results show that it can achieve ±55
o 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.
History
Email Address of Submitting Author
qixk@zju.edu.cnSubmitting Author's Institution
Zhejiang UniversitySubmitting Author's Country
- China