Low-Profile Broadband 1-Bit Randomly Encoded Folded Reflectarray Co-Aperture Transceiver for Frequency-Diverse Microwave Imaging

Xinhao Chen1; Yifei Wei1; Jinyu Wu1; Jiachen DU1; Dingfei Ma2; Baiyang Liu3; Qingfeng Zhang1

2024

10.1109/LAWP.2024.3436914

IEEE Antennas and Wireless Propagation Letters   影响因子和分区

1548-5757

This letter proposes a low-profile broadband 1-bit randomly encoded folded reflectarray co-aperture transceiver for frequency-diverse microwave imaging. The system consists of a broadband polarization conversion metasurface, a polarizer grid, and a dual-polarized horn. The designed metasurface exhibits a high polarization conversion ratio (PCR) above 90% and a broad operational frequency band of 13-31 GHz (corresponding to 82% relative bandwidth) which is much wider than the state of arts. By combining a polarizing grid and a polarization converter, the feed optical path of the transmitter can be folded. So the overall thickness of the system is reduced by half in comparison to traditional reflective or transmissive metasurface imaging systems. Furthermore, we integrate the transmitting and receiving antennas into a single dual-polarized antenna for feed. Real-time microwave imaging examples are provided to demonstrate the high performance of the folded reflectarray co-aperture tranceiver. The proposed system may find wide applications in real-time tracking of objects in integrated sensing and communication (ISAC)

EI

第一

1.State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, China
2.College of Information Engineering, Guangdong University of Technology, Guangzhou, China
3.College of Big Data and Internet, Shenzhen Technology University, Shenzhen, China

Xinhao Chen,Yifei Wei,Jinyu Wu,et al. Low-Profile Broadband 1-Bit Randomly Encoded Folded Reflectarray Co-Aperture Transceiver for Frequency-Diverse Microwave Imaging[J]. IEEE Antennas and Wireless Propagation Letters,2024,PP(99).

Xinhao Chen.,Yifei Wei.,Jinyu Wu.,Jiachen DU.,Dingfei Ma.,...&Qingfeng Zhang.(2024).Low-Profile Broadband 1-Bit Randomly Encoded Folded Reflectarray Co-Aperture Transceiver for Frequency-Diverse Microwave Imaging.IEEE Antennas and Wireless Propagation Letters,PP(99).

Xinhao Chen,et al."Low-Profile Broadband 1-Bit Randomly Encoded Folded Reflectarray Co-Aperture Transceiver for Frequency-Diverse Microwave Imaging".IEEE Antennas and Wireless Propagation Letters PP.99(2024).