volume | PIER Journals

Abstract

In the paper, a compact single-fed wide-beamwidth circularly polarized (CP) antenna is proposed. The main radiator of the antenna is a bent dielectric resonator (DR), which is conformal to a rectangle substrate with the same curvature and is excited through a crossed-two-ring slotted ground fed by a T-shaped feeding line. By bending the DR to different curvatures, the half-power bandwidth (HPBW) of the dielectric resonator antenna (DRA) can be adjusted. Besides, to improve the 3-dB axial ratio (AR) beamwidth, as well as further enhance the HPBW, a copper reflector is inserted below the DRA. A prototype operating in BeiDou Navigation Satellite System (BDS) B1 band (1.561 GHz) was designed, and measurement was done to verify the simulations. Measurement results show that from 1.55 GHz to 1.58 GHz, the return loss is more than 10 dB and the AR is less than 3 dB. At 1.561 GHz, the measured 3-dB AR beamwidths are 165° and 210° at xoz and yoz planes, respectively, while the HPBWs are 143° and 154° at the two planes.

1. Ferrero, F., C. Luxey, G. Jacquemod, and R. Staraj, "Dual-band circularly polarized microstrip antenna for satellite applications," IEEE Antennas Wireless Propag. Lett., Vol. 4, 13-15, 2005.
doi:10.1109/LAWP.2004.841622 Google Scholar

2. Harouni, Z., L. Cirio, L. Osman, A. Gharsallah, and O. Picon, "A dual circularly polarized 2.45-GHz rectenna for wireless power transmission," IEEE Antennas Wireless Propag. Lett., Vol. 10, 306-309, 2011.
doi:10.1109/LAWP.2011.2141973 Google Scholar

3. Wang, S., X. Zhang, L. Zhu, and W. Wu, "Single-fed wide-beamwidth circularly polarized patch antenna using dual-function 3-D printed substrate," IEEE Antennas Wireless Propag. Lett., Vol. 17, No. 4, 649-653, Apr. 2018.
doi:10.1109/LAWP.2018.2810105 Google Scholar

4. Sun, Y.-X., K. W. Leung, and J. Ren, "Dual-band circularly polarized antenna with wide axial ratio beamwidths for upper hemispherical coverage," IEEE Access, Vol. 6, 58132-58138, 2018.
doi:10.1109/ACCESS.2018.2875029 Google Scholar

5. Zheng, D., Y. Luo, and Q. Chu, "Cavity-backed self-phased circularly polarized multidipole antenna with wide axial-ratio beamwidth," IEEE Antennas Wireless Propag. Lett., Vol. 16, 1998-2001, 2017.
doi:10.1109/LAWP.2017.2692769 Google Scholar

6. Liu, S., D. Yang, and J. Pan, "A low-profile circularly polarized metasurface antenna with wide axial-ratio beamwidth," IEEE Antennas Wireless Propag. Lett., Vol. 18, No. 7, 1438-1442, Jul. 2019.
doi:10.1109/LAWP.2019.2919533 Google Scholar

7. Liu, H., C. Xun, S.-J. Fang, and Z. Wang, "Compact dual-band circularly polarized patch antenna with wide 3-dB axial ratio beamwidth for BeiDou applications," Progress In Electromagnetics Research M, Vol. 87, 103-113, 2019. Google Scholar

8. Liu, H., Y. Zhang, Y. Wang, S. Fang, and Z. Wang, "Circular polarized patch antenna with wide 3-dB axial ratio beamwidth and suppressed backward cross-polarized radiation for high-precision marine navigation applications," IET Microw. Antennas Propag., Vol. 15, No. 11, 1393-1401, Oct. 2021.
doi:10.1049/mia2.12121 Google Scholar

9. Wang, M.-S., X.-Q. Zhu, Y.-X. Guo, and W. Wu, "Compact circularly polarized patch antenna with wide axial-ratio beamwidth," IEEE Antennas Wireless Propag. Lett., Vol. 17, No. 4, 714-718, Apr. 2018.
doi:10.1109/LAWP.2018.2813160 Google Scholar

10. Ray, M. K., K. Mandal, and N. Nasimuddin, "Low-profile circularly polarized patch antenna with wide 3 dB beamwidth," IEEE Antennas Wireless Propag. Lett., Vol. 18, No. 12, 2473-2477, Dec. 2019.
doi:10.1109/LAWP.2019.2940703 Google Scholar

11. Zhang, X., L. Zhu, and N. Liu, "Pin-loaded circularly-polarized patch antennas with wide 3-dB axial ratio beamwidth," IEEE Trans. Antennas Propag., Vol. 65, No. 2, 521-528, Feb. 2017.
doi:10.1109/TAP.2016.2632728 Google Scholar

12. Mu, C., S. Fang, H. Liu, Z. Wang, and S. Fu, "3-D-printed dielectric lens with cone-shaped cavity for axial ratio beamwidth enhancement of circularly polarized patch antenna," IEEE Access, Vol. 7, 105062-105071, 2019.
doi:10.1109/ACCESS.2019.2931938 Google Scholar

13. He, S. and J. Deng, "Compact and single-feed circularly polarised microstrip antenna with wide beamwidth and axial-ratio beamwidth," Electron. Lett., Vol. 53, No. 15, 1013-1015, Jul. 2017.
doi:10.1049/el.2017.1030 Google Scholar

14. Pan, Z., W. Lin, and Q. Chu, "Compact wide-beam circularly-polarized microstrip antenna with a parasitic ring for CNSS application," IEEE Trans. Antennas Propag., Vol. 62, No. 5, 2847-2850, May 2014.
doi:10.1109/TAP.2014.2307348 Google Scholar

15. Liu, H., C. Xun, S. Fang, and Z. Wang, "Beamwidth-enhanced low-profile dual-band circular polarized patch antenna for CNSS applications," Int. J. Antennas Propag., Vol. 2019, Art. no. 7630815, 2019. Google Scholar

16. Feng, B., L. Li, K. L. Chung, and Y. Li, "Wideband widebeam dual circularly polarized magnetoelectric dipole antenna/array with meta-columns loading for 5G and beyond," IEEE Trans. Antennas Propag., Vol. 69, No. 1, 219-228, Jan. 2021.
doi:10.1109/TAP.2020.3008632 Google Scholar

17. Ye, X., M. He, P. Zhou, and H. Sun, "A compact single-feed circularly polarized microstrip antenna with symmetric and wide-beamwidth radiation pattern," Int. J. Antennas Propag., Vol. 2013, Art. no. 106516, 2013. Google Scholar

18. Liu, H., M. Shi, S. Fang, and Z. Wang, "Design of low-prole dual-band printed quadrilar helix antenna with wide beamwidth for UAV GPS applications," IEEE Access, Vol. 8, 157541-157548, 2020.
doi:10.1109/ACCESS.2020.3018906 Google Scholar

19. Sun, Y., K. W. Leung, and K. Lu, "Broadbeam cross-dipole antenna for GPS applications," IEEE Trans. Antennas Propag., Vol. 65, No. 10, 5605-5610, Oct. 2017.
doi:10.1109/TAP.2017.2742585 Google Scholar

20. Yuan, Y., M. Wang, Y. Yin, and W. Wu, "Wide-beam circularly polarized microstrip antenna with high front-to-back ratio for CNSS application," Proc. Sixth Asia-Pacic Conf. Antennas Propag., 2017. Google Scholar

21. Liu, H., C. Mu, T. Yan, S. Fang, G. Wang, and Z. Wang, "Dielectric lens with stacked cone-shaped cavity for broadside radiation enhancement of circularly polarized patch antenna," IET Microw. Antennas Propag., 2020. Google Scholar

Dr. Tielin Zhang

Professor Hongmei Liu

Prof. Shao-Jun Fang

Dr. Zhongbao Wang