volume | PIER Journals

Abstract

In this paper, a single-feed cylindrical dielectric resonator antenna (DRA) with wide angular circular polarization is proposed. It is composed of a cylindrical cavity loaded cylindrical dielectric resonator (DR), an orthogonal slot with curved arms, and an off-centered L-shaped microstrip line. By inserting the slot with curved arms and a cylindrical cavity, the 3-dB axial ratio beamwidth (ARBW) can be increased, and symmetric radiation can be obtained. For validation, a prototype is designed at 1.7 GHz and fabricated. The overall size is 0.39λ₀ × 0.39λ₀ × 0.13λ₀. The measured results show that it exhibits a 10-dB impedance bandwidth of 33.3% (1.45~2.03 GHz) with a circularly polarized (CP) bandwidth of 16.1% (1.54~1.81 GHz). Symmetric radiations are obtained, and the 3-dB ARBWs in the xoz and yoz planes are more than 150° over the CP bandwidth.

1. Zhao, Z., J. Ren, Y. Liu, Z. Zhou, and Y. Yin, "Wideband dual-feed, dual-sense circularly polarized dielectric resonator antenna," IEEE Trans. Antennas Propag., Vol. 68, No. 12, 7785-7793, Dec. 2020.
doi:10.1109/TAP.2020.2999754

2. Vahora, A. and K. Pandya, "Implementation of cylindrical dielectric resonator antenna array for Wi-Fi/wireless LAN/satellite applications," Progress In Electromagnetics Research M, Vol. 90, 157-166, 2020.
doi:10.2528/PIERM20011604

3. Pimpalgaonkar, P. R., et al. "A review on dielectric resonator antenna," 1st International Conference on Automation in Industries (ICAI), 106-109, 2016.

4. Wang, M. and Q. Chu, "A wideband polarization-reconfigurable water dielectric resonator antenna," IEEE Antennas Wireless Propag. Lett., Vol. 18, No. 2, 402-406, Feb. 2019.
doi:10.1109/LAWP.2019.2892503

5. Ren, J., et al. "Radiation pattern and polarization reconfigurable antenna using dielectric liquid," IEEE Trans. Antennas Propag., Vol. 68, No. 12, 8174-8179, Dec. 2020.
doi:10.1109/TAP.2020.2996811

6. Fakhte, S., H. Oraizi, and R. Karimian, "A novel low-cost circularly polarized rotated stacked dielectric resonator antenna," IEEE Antennas Wireless Propag. Lett., Vol. 13, 722-725, 2014.
doi:10.1109/LAWP.2014.2316118

7. Chowdhury, R. and R. K. Chaudhary, "An approach to generate circular polarization in a modified cylindrical-shaped dielectric resonator antenna using PMC boundary approximation," IEEE Antennas Wireless Propag. Lett., Vol. 17, No. 9, 1727-1731, Sept. 2018.
doi:10.1109/LAWP.2018.2864819

8. Liu, Y., K. W. Leung, J. Ren, and Y. Sun, "Linearly and circularly polarized filtering dielectric resonator antennas," IEEE Trans. Antennas Propag., Vol. 67, No. 6, 3629-3640, Jun. 2019.
doi:10.1109/TAP.2019.2902670

9. Lin, C. and J. Sun, "Circularly polarized dielectric resonator antenna fed by off-centered microstrip line for 2.4-GHz ISM band applications," IEEE Antennas Wireless Propag. Lett., Vol. 14, 947-949, Dec. 2015.
doi:10.1109/LAWP.2014.2388075

10. Lee, J. M., et al. "Circularly polarized semi-eccentric annular dielectric resonator antenna for X-band applications," IEEE Antennas Wireless Propag. Lett., Vol. 14, 1810-1813, 2015.
doi:10.1109/LAWP.2015.2435052

11. Motevasselian, A., A. Ellgardt, and B. L. G. Jonsson, "A circularly polarized cylindrical dielectric resonator antenna using a helical exciter," IEEE Trans. Antennas Propag., Vol. 61, No. 3, 1439-1443, Mar. 2013.
doi:10.1109/TAP.2012.2229954

12. Altaf, A., Y. Yang, K. Lee, and K. C. Hwang, "Circularly polarized spidron fractal dielectric resonator antenna," IEEE Antennas Wireless Propag. Lett., Vol. 14, 1806-1809, 2015.
doi:10.1109/LAWP.2015.2427373

13. Wang, K. X. and H. Wong, "A circularly polarized antenna by using rotated-stair dielectric resonator," IEEE Antennas Wireless Propag. Lett., Vol. 14, 787-790, 2015.
doi:10.1109/LAWP.2014.2385475

14. Kumar, R. and R. K. Chaudhary, "A wideband circularly polarized cubic dielectric resonator antenna excited with modified microstrip feed," IEEE Antennas Wireless Propag. Lett., Vol. 15, 1285-1288, 2016.
doi:10.1109/LAWP.2015.2504840

15. Zou, M., J. Pan, and Z. Nie, "A wideband circularly polarized rectangular dielectric resonator antenna excited by an archimedean spiral slot," IEEE Antennas Wireless Propag. Lett., Vol. 14, 446-449, 2015.
doi:10.1109/LAWP.2014.2364296

16. Sharma, A., G. Das, S. Gupta, and R. K. Gangwar, "Quad-band quad-sense circularly polarized dielectric resonator antenna for GPS/CNSS/WLAN/WiMAX applications," IEEE Antennas Wireless Propag. Lett., Vol. 19, No. 3, 403-407, Mar. 2020.
doi:10.1109/LAWP.2020.2969743

17. Varshney, G., V. S. Pandey, R. S. Yaduvanshi, and L. Kumar, "Wide band circularly polarized dielectric resonator antenna with stair-shaped slot excitation," IEEE Trans. Antennas Propag., Vol. 65, No. 3, 1380-1383, Mar. 2017.
doi:10.1109/TAP.2016.2635619

18. Lu, L., Y. Jiao, H. Zhang, R. Wang, and T. Li, "Wideband circularly polarized antenna with stair-shaped dielectric resonator and open-ended slot ground," IEEE Antennas Wireless Propag. Lett., Vol. 15, 1755-1758, 2016.
doi:10.1109/LAWP.2016.2532931

19. Khalily, M., M. R. Kamarudin, and M. H. Jamaluddin, "A novel square dielectric resonator antenna with two unequal inclined slits for wideband circular polarization," IEEE Antennas Wireless Propag. Lett., Vol. 12, 1256-1259, 2013.
doi:10.1109/LAWP.2013.2283536

20. Yang, M., Y. Pan, Y. Sun, and K. Leung, "Wideband circularly polarized substrate-integrated embedded dielectric resonator antenna for millimeter-wave applications," IEEE Trans. Antennas Propag., Vol. 68, No. 2, 1145-1150, Feb. 2020.
doi:10.1109/TAP.2019.2938629

21. Illahi, U., J. Iqbal, M. I. Sulaiman, M. M. Alam, M. M. Su'ud, and M. H. Jamaluddin, "Singly-fed rectangular dielectric resonator antenna with a wide circular polarization bandwidth and beamwidth for WiMAX/satellite applications," IEEE Access, Vol. 7, 66206-66214, 2019.
doi:10.1109/ACCESS.2019.2917702

22. Trinh-Van, S., Y. Yang, K. Lee, and K. C. Hwang, "Single-fed circularly polarized dielectric resonator antenna with an enhanced axial ratio bandwidth and enhanced gain," IEEE Access, Vol. 8, 41045-41052, 2020.
doi:10.1109/ACCESS.2020.2976780

23. Sun, W., W. Yang, P. Chu, and J. Chen, "Design of a wideband circularly polarized stacked dielectric resonator antenna," IEEE Trans. Antennas Propag., Vol. 67, No. 1, 591-595, Jan. 2019.
doi:10.1109/TAP.2018.2874678

24. Yang, M., Y. Pan, and W. Yang, "A singly fed wideband circularly polarized dielectric resonator antenna," IEEE Antennas Wireless Propag. Lett., Vol. 17, No. 8, 1515-1518, Aug. 2018.
doi:10.1109/LAWP.2018.2851574

25. Lin, A., et al. "An L-shaped circularly polarized slot antenna," Proc. IEEE Antennas Propag. Soc. Int. Symp., Vol. 4, 2786-2789, 1999.

26. 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

Dr. Hongmei Liu

Dr. Tuanyuan Yan

Prof. Shao-Jun Fang

Dr. Zhongbao Wang