volume | PIER Journals

Abstract

A dual-band circularly polarized antenna is presented in this paper. A rectangular patch antenna with gap-feeding structure is firstly designed, and 3-dB axial-ratio bandwidth from 2.35 to 2.48 GHz is obtained. A parasitic square ring is placed on the rear of the rectangular patch as a band-notch unit operating around 2.4 GHz. Then an original wide circularly polarized band is split into two bands from 2.25 to 2.31 GHz and from 2.46 to 2.53 GHz. By adopting differential feeding, symmetrical patterns are achieved. Measurement results show that two 3-dB axial-ratio bands of 2.6% (2.25-2.31 GHz) and 2.0% (2.51-2.56 GHz) are obtained with a small frequency ratio of 1.11.

1. Zhao, Y., Z. Zhang, K. Wei, and Z. Feng, "A dual circularly polarized waveguide antenna with bidirectional radiations of the same sense," EEE Transactions on Antennas and Propagation, Vol. 62, No. 1, 480-484, 2014.
doi:10.1109/TAP.2013.2287303

2. He, Y., W. He, and H. Wong, "A wideband circularly polarized cross-dipole antenna," IEEE Antennas Wireless Propagation Letters, Vol. 13, 67-70, 2014.
doi:10.1109/LAWP.2013.2296324

3. Kim, S. M. and W. G. Yang, "Single feed wideband circular polarised patch antenna," Electronics Letters, Vol. 43, No. 13, 703-704, 2007.
doi:10.1049/el:20070677

4. Deng, J., L. Guo, T. Fan, Z. Wu, Y. Hu, and J. Yang, "Wideband circularly polarized suspended patch antenna with indented edge and gap-coupled feed," Progress In Electromagnetics Research, Vol. 135, 151-159, 2013.
doi:10.2528/PIER12111601

5. Nayeri, P., K.-F. Lee, A. Z. Elsherbeni, and F. Yang, "Dual-band circularly polarized antennas using stacked patches with asymmetric U-slots," IEEE Antennas Wireless Propagation Letters, Vol. 10, 492-495, 2011.
doi:10.1109/LAWP.2011.2153820

6. Ma, S.-L. and J.-S. Row, "Design of single-feed dual-frequency patch antenna for GPS and WLAN applications," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 9, 3433-3436, 2011.
doi:10.1109/TAP.2011.2161453

7. Bao, X. L. and M. J. Ammann, "Dual-frequency circularly-polarized patch antenna with compact size and small frequency ratio," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 7, 2104-2107, 2007.
doi:10.1109/TAP.2007.900271

8. Hsieh, W.-T., T.-H. Chang, and J.-F. Kiang, "Dual-band circularly polarized cavity-backed annular slot antenna for GPS receiver," IEEE Transactions on Antennas and Propagation, Vol. 60, No. 4, 2076-2080, 2012.
doi:10.1109/TAP.2012.2186229

9. Gaffar, M., M. A. Zaman, and S. M. Choudhury, M. A. Matin, "Design and optimization of a novel dual-band circularly polarized microstrip antenna," IET Microwaves, Antennas and Propagation, Vol. 5, No. 14, 1670-1674, 2011.
doi:10.1049/iet-map.2010.0050

10. Sun, X., Z. Zhang, and Z. Feng, "Dual-band circularly polarized stacked annular-ring patch antenna for GPS application," IEEE Antennas Wireless Propagation Letters, Vol. 10, 49-52, 2011.

11. Deng, C., Y. Li, Z. Zhang, G. Pan, and Z. Feng, "Dual-band circularly polarized rotated patch antenna with a parasitic circular patch loading," IEEE Antennas Wireless Propagation Letters, Vol. 12, 492-495, 2013.
doi:10.1109/LAWP.2013.2254696

12. Xue, Q., X. Y. Zhang, and C.-H. K. Chin, "A novel differential-fed patch antenna," IEEE Antennas Wireless Propagation Letters, Vol. 5, 471-474, 2006.
doi:10.1109/LAWP.2006.885168

13. Zhang, Y. P., "Design and experiment on differentially-driven microstrip antennas," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 10, 2701-2708, 2007.
doi:10.1109/TAP.2007.905832

14. Wu, H., J. Zhang, L. Yan, L. Han, R. Yang, and W. Zhang, "Differential dual-band antenna-in-package with T-shaped slots," IEEE Antennas Wireless Propagation Letters, Vol. 11, 1446-1449, 2012.

15. Xue, Q., S. W. Liao, and J. H. Xu, "A differentially-driven dual-polarized magneto-electric dipole antenna," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 1, 425-430, 2013.
doi:10.1109/TAP.2012.2214998

16. Bao, X. L. and M. J. Ammann, "Differentially-fed microstrip patch antenna for omni-directional GPS applications," Loughborough Antennas and Propagation Conference, 18-21, 2013.

17. Zhang, X. and M. Y. Xia, "A broadband circular polarization patch antenna with differential-feeding," International Conference on Microwave Technology and Computational Electromagnetics, 109-112, 2009.

18. Antoniades, M. A. and G. Y. Eleftheriades, "A broadband Wilkinson balun using microstrip metamaterial lines," IEEE Antennas Wireless Propagation Letters, Vol. 4, 209-212, 2005.
doi:10.1109/LAWP.2005.851005

Dr. Jianjun Wu

Professor Ying-Zeng Yin

Dr. Zedong Wang

Dr. Ruina Lian