volume | PIER Journals

Abstract

A low sidelobe dual-beam reflectarray antenna is proposed based on the sparse array principle. The reflected dual beams achieve high gain through optimized phase compensation, in which the transmissive elements act as dummy elements to suppress sidelobes. A global search optimization technique based on genetic algorithm (GA) is adopted to improve the arrangement of transmissive and reflection elements. Since all the reflective and transmissive elements operating in the same wide frequency band are non-uniformly distributed on the aperture, both the backward radiation and cross polarization levels are effectively suppressed. The measurement results show that the sidelobe level of the dual-beams is less than -19 dB. The peak gain and peak aperture efficiency of the designed antenna are 26.0 dBi and 38.9%, respectively. The 3-dB gain bandwidth is 13.8%. The front to back ratio at 30 GHz is 27 dB. This dual-beam antenna has the advantages of high gain, low sidelobes, and wide beam radiation range, which make it suitable for millimeter-wave multi-target radar detection systems.

1. Zhang, Chao, Yu Luo, Yingran He, Ningning Yan, and Kaixue Ma, "Multi-beam quad-polarized transmit-array antenna with arbitrary radiation direction for vehicle communication via generalized phase superposition," IEEE Transactions on Antennas and Propagation, Vol. 73, No. 3, 1414-1425, 2025.
doi:10.1109/tap.2024.3505596 Google Scholar

2. Guo, Xiaoxuan, Yue Guo, Yu Luo, and Yang Yang, "Full-space transmission-reflection-integrated metasurface for multibeam generation on orthogonal planes," IEEE Transactions on Microwave Theory and Techniques, Vol. 73, No. 10, 8199-8209, 2025.
doi:10.1109/tmtt.2025.3565529 Google Scholar

3. Malleboina, Raju and Debdeep Sarkar, "Single-feed near-field excited quad-beam metasurface antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 24, No. 1, 137-141, 2025.
doi:10.1109/lawp.2024.3486777 Google Scholar

4. Nayeri, Payam, Fan Yang, and Atef Z. Elsherbeni, "Design and experiment of a single-feed quad-beam reflectarray antenna," IEEE Transactions on Antennas and Propagation, Vol. 60, No. 2, 1166-1171, 2012.
doi:10.1109/tap.2011.2173126 Google Scholar

5. Liu, Xiaosong, Zehong Yan, Enlin Wang, Xiaofei Zhao, Tianling Zhang, and Fangfang Fan, "Multibeam forming with arbitrary radiation power ratios based on a conformal amplitude-phase-controlled metasurface," IEEE Transactions on Antennas and Propagation, Vol. 71, No. 4, 3707-3712, 2023.
doi:10.1109/tap.2023.3242836 Google Scholar

6. Song, Li-Zhao, Xuan Wang, and Pei-Yuan Qin, "Single-feed multibeam conformal transmitarrays with phase and amplitude modulations," IEEE Antennas and Wireless Propagation Letters, Vol. 21, No. 8, 1669-1673, 2022.
doi:10.1109/lawp.2022.3177402 Google Scholar

7. Tong, Xuanfeng, Weimin Zeng, Yuan Li, Fan Wu, Zhi Hao Jiang, Ronan Sauleau, and Wei Hong, "A dual-band dual-circularly polarized transmit-array antenna and its application for four-color scheme multi-beam generation," IEEE Transactions on Antennas and Propagation, Vol. 72, No. 11, 8511-8526, 2024.
doi:10.1109/tap.2024.3456963 Google Scholar

8. Yang, Weixu, Ke Chen, Junming Zhao, Tian Jiang, and Yijun Feng, "Frequency-multiplexed spin-decoupled metasurface for low-profile dual-band dual-circularly polarized transmitarray with independent beams," IEEE Transactions on Antennas and Propagation, Vol. 72, No. 1, 642-652, 2024.
doi:10.1109/tap.2023.3332497 Google Scholar

9. Wu, Lin-Xiao, Na Zhang, Kai Qu, Ke Chen, Tian Jiang, Junming Zhao, and Yijun Feng, "Transmissive metasurface with independent amplitude/phase control and its application to low-side-lobe metalens antenna," IEEE Transactions on Antennas and Propagation, Vol. 70, No. 8, 6526-6536, 2022.
doi:10.1109/tap.2022.3161500 Google Scholar

10. Lou, Qun and Zhi Ning Chen, "Sidelobe suppression of metalens antenna by amplitude and phase controllable metasurfaces," IEEE Transactions on Antennas and Propagation, Vol. 69, No. 10, 6977-6981, 2021.
doi:10.1109/tap.2021.3076312 Google Scholar

11. Sun, Maolin, Kuiwen Xu, Yang Yang, Shichang Chen, Tao Wang, Dingwang Yu, Xianbin Yu, and Gaofeng Wang, "Folded transmitarray antenna via independent amplitude/phase control with low side-lobe for millimeter-wave communication," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 71, No. 4, 2004-2008, 2024.
doi:10.1109/tcsii.2023.3338372 Google Scholar

12. Yin, Liyuan, Cheng Jin, Qihao Lv, Binchao Zhang, Kaiqi Cao, Pengyu Zhang, and Zhenghui Xue, "Amplitude and phase independently adjustable transmitarray aperture and its applications to high gain and low sidelobe antenna," IEEE Transactions on Antennas and Propagation, Vol. 70, No. 6, 4498-4506, 2022.
doi:10.1109/tap.2022.3140498 Google Scholar

13. Li, Hai-Peng, Guang-Ming Wang, Tong Cai, Jian-Gang Liang, and Xiang-Jun Gao, "Phase-and amplitude-control metasurfaces for antenna main-lobe and sidelobe manipulations," IEEE Transactions on Antennas and Propagation, Vol. 66, No. 10, 5121-5129, Oct. 2018.
doi:10.1109/tap.2018.2858181 Google Scholar

14. Zhang, Pengfei, Wenmei Zhang, Xinwei Chen, Guorui Han, Jinrong Su, and Rongcao Yang, "Low-sidelobe dual-beam antenna based on metasurface with independently regulated amplitude/phase," IEEE Antennas and Wireless Propagation Letters, Vol. 22, No. 10, 2382-2386, Oct. 2023.
doi:10.1109/lawp.2023.3288601 Google Scholar

15. Liu, Qing, Xin-Wei Chen, Wu-Bin Niu, Ming-Yao Xia, and Wen-Mei Zhang, "Low sidelobe dual-beam metasurface antenna based on taylor distribution and digital filtering methods," IEEE Antennas and Wireless Propagation Letters, Vol. 24, No. 4, 1003-1007, 2025.
doi:10.1109/lawp.2024.3523945 Google Scholar

16. Liu, Shi Lin, Xian Qi Lin, Yu Hen Yan, and Yu Lu Fan, "Generation of a high-gain bidirectional transmit-reflect-array antenna with asymmetric beams using sparse-array method," IEEE Transactions on Antennas and Propagation, Vol. 69, No. 9, 6087-6092, 2021.
doi:10.1109/tap.2021.3069481 Google Scholar

17. Zhang, Haoyang, Wen Wu, Qiao Cheng, Qiaoyu Chen, Yin-Hua Yu, and Da-Gang Fang, "Reconfigurable reflectarray antenna based on hyperuniform disordered distribution," IEEE Transactions on Antennas and Propagation, Vol. 70, No. 9, 7513-7523, 2022.
doi:10.1109/tap.2022.3193230 Google Scholar

18. Yang, Huanhuan, Fan Yang, Shenheng Xu, Yilin Mao, Maokun Li, Xiangyu Cao, and Jun Gao, "A 1-bit 10 × 10 reconfigurable reflectarray antenna: Design, optimization, and experiment," IEEE Transactions on Antennas and Propagation, Vol. 64, No. 6, 2246-2254, 2016.
doi:10.1109/tap.2016.2550178 Google Scholar

19. Luo, Wei, Liu Luo, Xiaoxue Wang, Min Wang, and Hongsheng Zhang, "Dual-band dual-linearly polarized multibeam transmit-reflect-array antenna with independent beams control," Alexandria Engineering Journal, Vol. 127, 34-42, 2025.
doi:10.1016/j.aej.2025.05.020 Google Scholar

20. Xu, Peng, Long Li, Ruijie Li, and Haixia Liu, "Dual-circularly polarized spin-decoupled reflectarray with FSS-back for independent operating at Ku-/Ka-bands," IEEE Transactions on Antennas and Propagation, Vol. 69, No. 10, 7041-7046, 2021.
doi:10.1109/tap.2021.3076518 Google Scholar

21. Yin, Jiexi, Qun Lou, Haiming Wang, Zhi Ning Chen, and Wei Hong, "Broadband dual-polarized single-layer reflectarray antenna with independently controllable 1-bit dual beams," IEEE Transactions on Antennas and Propagation, Vol. 69, No. 6, 3294-3302, 2021.
doi:10.1109/tap.2020.3037686 Google Scholar

22. Sun, Yi, Shaowei Liao, and Haoshen Zhu, "Dual-frequency dual-beam reflectarray based on frequency-division duplexing reflection phase-shifting element," IEEE Antennas and Wireless Propagation Letters, Vol. 24, No. 12, 4570-4574, 2025.
doi:10.1109/lawp.2025.3604176 Google Scholar

Dr. Wei Luo

Ms. Mingli Xie

Dr. Liu Luo

Dr. Yuqi Yang