volume | PIER Journals

Abstract

In this work, we present a single-layer, wideband circularly polarized (CP) metasurface antenna fed by a coplanar waveguide (CPW). The proposed antenna employs a rotated CPW feed structure, which achieves circular polarization without adding dielectric layers, significantly simplifying the antenna structure and improving manufacturability, while incorporating two stubs to adjust impedance matching and broaden the bandwidth. Measurement results indicate a -10 dB impedance bandwidth covering 4.23-6.2 GHz (a fractional bandwidth of 37.7%), and a 3-dB axial ratio bandwidth of 5.26-6.32 GHz (a fractional bandwidth of 18.3%), with a peak measured gain of 9 dBi. The antenna targets Sub-6 GHz with strong 5G integration potential.

1. Mongia, Rajesh K. and Prakash Bhartia, "Dielectric resonator antennas --- A review and general design relations for resonant frequency and bandwidth," International Journal of Microwave and Millimeter-Wave Computer-Aided Engineering, Vol. 4, No. 3, 230-247, 1994.
doi:10.1002/mmce.4570040304 Google Scholar

2. Toh, B. Y., R. Cahill, and V. F. Fusco, "Understanding and measuring circular polarization," IEEE Transactions on Education, Vol. 46, No. 3, 313-318, 2003.
doi:10.1109/te.2003.813519 Google Scholar

3. Lee, Choon Sae, Yang Fan, and Mohamed Ezzat, "Single-feed circularly polarized microstrip antenna with Bethe holes on the radiating patch," IEEE Transactions on Antennas and Propagation, Vol. 68, No. 6, 4935-4938, 2020.
doi:10.1109/tap.2019.2952430 Google Scholar

4. Lu, Jui-Han, Chia-Luan Tang, and Kin-Lu Wong, "Single-feed slotted equilateral-triangular microstrip antenna for circular polarization," IEEE Transactions on Antennas and Propagation, Vol. 47, No. 7, 1174-1178, 1999.
doi:10.1109/8.785749 Google Scholar

5. Lee, Choon Sae and V. Nalbandian, "Planar circularly polarized microstrip antenna with a single feed," IEEE Transactions on Antennas and Propagation, Vol. 47, No. 6, 1005-1007, 1999.
doi:10.1109/8.777124 Google Scholar

6. Kumar, Rajkishor, Dilip Kumar Choudhary, Reshma Singh, and Raghvendra Kumar Chaudhary, "A wideband circularly polarized DRA excited with meandered-line inductor for Wi-MAX/LTE2500 applications," 2017 Progress in Electromagnetics Research Symposium --- Fall (PIERS --- FALL), 1514-1519, Singapore, 2017.
doi:10.1109/PIERS-FALL.2017.8293371

7. Zhao, Ge, Yi Zhou, Jing Rui Wang, and Mei Song Tong, "A circularly polarized dielectric resonator antenna based on quasi-self-complementary metasurface," IEEE Transactions on Antennas and Propagation, Vol. 70, No. 8, 7147-7151, 2022.
doi:10.1109/tap.2022.3145504 Google Scholar

8. Elahi, Manzoor, Amir Altaf, Youngoo Yang, Kang-Yoon Lee, and Keum Cheol Hwang, "Circularly polarized dielectric resonator antenna with two annular vias," IEEE Access, Vol. 9, 41123-41128, 2021.
doi:10.1109/access.2021.3064026 Google Scholar

9. Zhu, H. L., S. W. Cheung, Kwok Lun Chung, and T. I. Yuk, "Linear-to-circular polarization conversion using metasurface," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 9, 4615-4623, 2013.
doi:10.1109/tap.2013.2267712 Google Scholar

10. Zhu, H. L., S. W. Cheung, X. H. Liu, and T. I. Yuk, "Design of polarization reconfigurable antenna using metasurface," IEEE Transactions on Antennas and Propagation, Vol. 62, No. 6, 2891-2898, 2014.
doi:10.1109/tap.2014.2310209 Google Scholar

11. Ta, Son Xuat and Ikmo Park, "Low-profile broadband circularly polarized patch antenna using metasurface," IEEE Transactions on Antennas and Propagation, Vol. 63, No. 12, 5929-5934, 2015.
doi:10.1109/tap.2015.2487993 Google Scholar

12. Huynh, T. and K.-F. Lee, "Single-layer single-patch wideband microstrip antenna," Electronics Letters, Vol. 31, No. 16, 1310-1312, 1995.
doi:10.1049/el:19950950 Google Scholar

13. Nath, Uddipan, Sagnik Banerjee, Carlo Santini, Rocco Citroni, Fabio Mangini, and Fabrizio Frezza, "Simple and cost-effective design of a THz-metamaterial-based hybrid sensor on a single substrate," Sensors, Vol. 25, No. 12, 3660, 2025.
doi:10.3390/s25123660 Google Scholar

14. Genovesi, Simone and Francesco Alessio Dicandia, "Characteristic modes analysis of a near-field polarization-conversion metasurface for the design of a wideband circularly polarized X-band antenna," IEEE Access, Vol. 10, 88932-88940, 2022.
doi:10.1109/access.2022.3200303 Google Scholar

15. Dicandia, Francesco Alessio and Simone Genovesi, "Characteristic modes analysis of non-uniform metasurface superstrate for nanosatellite antenna design," IEEE Access, Vol. 8, 176050-176061, 2020.
doi:10.1109/access.2020.3027251 Google Scholar

16. Wan, Wenhan, Wusheng Ji, Zhaoyi Wang, Xingyong Jiang, and Rofs Microsystem, "Wideband circularly polarized dielectric resonator antenna based on double-layer metasurface," Progress In Electromagnetics Research C, Vol. 158, 197-203, 2025. Google Scholar

17. Wang, Junfang, Hang Wong, Zhuoqiao Ji, and Yongle Wu, "Broadband CPW-fed aperture coupled metasurface antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 18, No. 3, 517-520, 2019.
doi:10.1109/lawp.2019.2895618 Google Scholar

18. El Yousfi, Ahmed, Abdenasser Lamkaddem, Kerlos Atia Abdalmalak, and Daniel Segovia-Vargas, "A broadband circularly polarized single-layer metasurface antenna using characteristic-mode analysis," IEEE Transactions on Antennas and Propagation, Vol. 71, No. 4, 3114-3122, 2023.
doi:10.1109/tap.2023.3239104 Google Scholar

19. Ye, Jingxin, Teng Li, Min Han, and Wenbin Dou, "Metasurface-inspired wideband circularly polarized antenna array in Ka-band using characteristic mode analysis," IEEE Antennas and Wireless Propagation Letters, Vol. 23, No. 1, 389-393, 2024.
doi:10.1109/lawp.2023.3325448 Google Scholar

Dr. Zhaoyi Wang

Dr. Wu-Sheng Ji

Dr. Meng Wang

Dr. Wenhan Wan

Dr. Xing-Yong Jiang