volume | PIER Journals

Abstract

This paper presents a compact single feed circularly polarized (CP) antenna along with a frequency selective surface (FSS) that acts as a partially reflective surface over the patch. Patch is loaded with four diagonally asymmetric complementary split ring resonators (CSRRs) in order to achieve circular polarization. In this paper a novel design of reflective type FSS layer is presented at 2.4 GHz. The size of FSS unit cell is approximately 0.132λ₀ × 0.132λ₀, and it is placed at a distance of 0.146λ₀ from the patch. Simulated impedance bandwidth of the antenna for S₁₁ < -10 dB is from 2.385 GHz to 2.506 GHz (121 MHz or 4.95%) which covers the entire IEEE 802.11 WLAN band (2.4 GHz-2.484 GHz). Position of the four CSRRs on the patch and the height of FSS screen are determined through parametric studies, and the detailed analyses in terms of reflection coefficient, axial ratio, and gain variation are also presented. Gain of the antenna is 3.02 dBic at the operating frequency 2.45 GHz. Measured results are in good agreement with the simulated ones.

1. Balanis, C. A., "Antenna theory: A review," Proceedings of the IEEE, Vol. 80, No. 1, 7-23, 1992.
doi:10.1109/5.119564 Google Scholar

2. Kumar, G. and K. P. Ray, Broadband Microstrip Antennas, Artech House, 2003.

3. Sharma, P. C. and K. C. Gupta, "Analysis and optimized design of single feed circularly polarized microstrip antennas," IEEE Trans. Antennas Propag., Vol. 31, No. 6, 949-955, 1983.
doi:10.1109/TAP.1983.1143162 Google Scholar

4. Iwasaki, H., "A circularly polarized small-size microstrip antenna with a cross slot," IEEE Trans. Antennas Propag., Vol. 44, No. 10, 1399-1401, 1996.
doi:10.1109/8.537335 Google Scholar

5. Yang, K. P., K. L. Wong, and J. Lu, "Compact circularly polarized triangular microstrip antenna with y-shaped slot," Microw. Opt. Technol. Lett., Vol. 20, No. 1, 31-34, 1999.
doi:10.1002/(SICI)1098-2760(19990105)20:1<31::AID-MOP8>3.0.CO;2-K Google Scholar

6. Sharma, W. C., H. Kumar, and G. Kumar, "Single feed dual band circularly polarized stub loaded tunable microstrip patch antenna," IEEE Asia-Pacific Microwave Conference (APMC), 2016. Google Scholar

7. Chen, W. S., C. K. Wu, and K. L. Wong, "Single-feed square-ring microstrip antenna with truncated corners for compact circular polarisation operation," Electronics Letters, Vol. 34, No. 11, 1045-1047, 1998.
doi:10.1049/el:19980818 Google Scholar

8. Nasimuddin, Z. N. Chen, and X. Qing, "Asymmetric-circular shaped slotted microstrip antennas for circular polarization and RFID applications," IEEE Trans. Antennas Propag., Vol. 58, No. 12, 3821-3828, 2010.
doi:10.1109/TAP.2010.2078476 Google Scholar

9. Chen, Z. N. and X. Qing, "Compact circularly polarized asymmetric-slotted microstrip patch antennas," Microw. Opt. Technol. Lett., Vol. 54, No. 8, 1920-1927, 2012.
doi:10.1002/mop.26927 Google Scholar

10. Qing, X. and Z. N. Chen, "Compact asymmetric-slit microstrip antennas for circular polarization," IEEE Trans. Antennas Propag., Vol. 59, No. 1, 285-288, 2011.
doi:10.1109/TAP.2010.2090468 Google Scholar

11. Caloz, C. and T. Itoh, Electromagnetic Metamaterials: Transmission Line Theory and Microwave Applications, Wiley-Interscience, 2006.

12. Liu, X. Y., Z. T. Wu, Y. Fan, and E. M. Tentzeris, "A miniaturized CSRR loaded wide-beamwidth circularly polarized implantable antenna for subcutaneous real-time glucose monitoring," IEEE Antennas Wireless Propag. Lett., Vol. 16, 577-580, 2017.
doi:10.1109/LAWP.2016.2590477 Google Scholar

13. Dong, Y., H. Toyao, and T. Itoh, "Design and characterization of miniaturized patch antennas loaded with complementary split-ring resonators," IEEE Trans. Antennas Propag., Vol. 60, No. 2, 772-785, 2012.
doi:10.1109/TAP.2011.2173120 Google Scholar

14. Ke, L., G.-M. Wang, X. Tong, and H.-X. Xu, "A novel circularly polarized antenna based on the single complementary split ring resonator," IEEE International Symposium on Signals, Systems and Electronics, 2010. Google Scholar

15. Dey, S., S. Mondal, and P. P. Sarkar, "Single feed circularly polarized antenna loaded with complementary split ring resonator (CSRR)," Progress In Electromagnetics Research M, Vol. 78, 175-184, 2019.
doi:10.2528/PIERM18090503 Google Scholar

16. Dey, S., S. Mondal, and P. P. Sarkar, "Reactive impedance surface (RIS) based asymmetric slit patch antenna loaded with complementary split ring resonator (CSRR) for circular polarization," Journal of Electromagnetic Waves and Applications, Vol. 33, No. 8, 1003-1013, 2019.
doi:10.1080/09205071.2019.1583608 Google Scholar

17. Xu, H. X., G. M. Wang, J. G. Liang, M. Q. Qi, and X. Gao, "Compact circularly polarized antennas combining meta-surfaces and strong space-filling meta-resonators," IEEE Trans. Antennas Propag., Vol. 61, No. 7, 3442-3450, 2013.
doi:10.1109/TAP.2013.2255855 Google Scholar

18. Wang, Y., et al. "Planar vortex beam generator for circularly polarized incidence based on FSS," IEEE Trans. Antennas Propag., Vol. 68, No. 3, 1514-1522, 2019.
doi:10.1109/TAP.2019.2938666 Google Scholar

19. Foroozesh, A. and L. Shafai, "Investigation into the effects of the patch-type FSS superstrate on the high-gain cavity resonance antenna design," IEEE Trans. Antennas Propag., Vol. 58, No. 2, 258-270, 2010.
doi:10.1109/TAP.2009.2037702 Google Scholar

20. Liu, Z. G., Z. X. Cao, and L. N. Wu, "Compact low-profile circularly polarized Fabry-Perot resonator antenna fed by linearly polarized microstrip patch," IEEE Antennas Wireless Propag. Lett., Vol. 15, 524-527, 2015. Google Scholar

21. Lee, D. H., Y. J. Lee, J. Yeo, R. Mittra, and W. S. Park, "Directivity enhancement of circular polarized patch antenna using ring-shaped frequency selective surface superstrate," Microw. Opt. Technol. Lett., Vol. 49, No. 1, 199-201, 2007.
doi:10.1002/mop.22084 Google Scholar

22. Chatterjee, A. and S. K. Parui, "A dual layer frequency selective surface reflector for wideband applications," Radio Engineering, Vol. 25, No. 1, 2016. Google Scholar

23. CST Microwave Studio Manual, ver. 14, Computer Simulation Technology, Framingham, MA. Google Scholar

Dr. Soumik Dey

Dr. Ankita Indu

Mr. Santanu Mondal

Dr. Partha Pratim Sarkar