Vol. 122

Latest Volume
All Volumes
All Issues
2022-08-07

Axial Ratio Bandwidth Enhanced Proximity Fed Fractal MGS-Based Circularly Polarized Patch Antenna

By Ramya Radhakrishnan and Shilpi Gupta
Progress In Electromagnetics Research C, Vol. 122, 109-119, 2022
doi:10.2528/PIERC22051008

Abstract

A triangle-shaped proximity-fed circularly polarized antenna with a modified fractal ground structure is introduced in this paper. The antenna's ground plane is employed with a fractal-shaped corporate feed type cut, which helps produce the circular polarization. The proximity feed is offset from the center to generate the orthogonal modes; furthermore, the fractal modified ground aids in enhancing the axial ratio bandwidth. Different iterations of the basic fractal unit improve the polarization purity and the axial ratio bandwidth. The designed antenna reflection coefficients below -10 dB at 2.45 GHz show an impedance bandwidth of 250 MHz (2.25 GHz to 2.50 GHz) and axial ratio bandwidth of 90 MHz (2.40 GHz to 2.49 GHz). The simulated and measured results show a good agreement.

Citation


Ramya Radhakrishnan and Shilpi Gupta, "Axial Ratio Bandwidth Enhanced Proximity Fed Fractal MGS-Based Circularly Polarized Patch Antenna," Progress In Electromagnetics Research C, Vol. 122, 109-119, 2022.
doi:10.2528/PIERC22051008
http://jpier.org/PIERC/pier.php?paper=22051008

References


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

    2. James, J. R., P. S. Hall, and C. Wood, Microstrip Antenna, Peter Peregrinus, 1981.
    doi:10.1049/PBEW012E

    3. Helszajn, J. and D. S. James, "Planar triangular resonators with magnetic walls," IEEE Transactions on Microwave Theory and Techniques, Vol. 26, No. 2, 95-100, Feb. 1978.
    doi:10.1109/TMTT.1978.1129320

    4. Haneishi, M., T. Nambara, and S. Yoshida, "A design method of circularly polarised rectangular microstrip antenna by one-point feed," Electronics and communication, Japan, 1981.

    5. Haneishi, M., T. Nambara, and S. Yoshida, "Study on ellipticity properties of single-feed-type circularly polarised microstrip antennas," IEEE Electronics Letters, Vol. 18, No. 5, 191-193, 1982.
    doi:10.1049/el:19820132

    6. Lu, J.-H. and K.-L. Wong, "Single-feed circularly polarized equilateral-triangular microstrip antenna with a tuning stub," IEEE Transactions on Antennas and Propagation, Vol. 48, No. 12, 1869-1872, Dec. 2000.
    doi:10.1109/8.901277

    7. Yang, K. P., K. L.Wong, and J. H. Lu, "Compact circularly polarized triangular microstrip antenna with Y-shaped slot," Microwave Optical Technology Letters, 31-34, Jan. 1999.

    8. Lu, J. H., H. C. Yu, and K. L.Wong, "Compact circular polarization design of equilateral-triangular microstrip antenna with spur lines," Electronics Letters, Vol. 34, 1989-1990, Oct. 1998.

    9. Lu, J. H., C. L. Tang, and K. L. Wong, "Single-feed slot-loaded equilateral-triangular microstrip antenna for circular polarization," IEEE Trans. Antennas Propagat., Vol. 47, 1174-1178, Sept. 1999.

    10. Karimabadi, S. S., Y. Mohsenzadeh, A. R. Attari, and S. M. Moghadasi, "Bandwidth enhancement of single-feed circularly polarized equilateral triangular microstrip antenna," PIERS Proceedings, 147-150, Hangzhou, China, Mar. 24-28, 2008.

    11. Wei, K., J. Y. Li, L. Wang, R. Xu, and Z. J. Xing, "A new technique to design circularly polarized microstrip antenna by fractal defected ground structure," IEEE Transactions on Antennas and Propagation, Vol. 65, No. 7, 3721-3725, Jul. 2017.
    doi:10.1109/TAP.2017.2700226

    12. Prajapati, P. R., G. G. K. Murthy, A. Patnaik, and M. V. Kartikeyan, "Design and testing of a compact circularly polarised microstrip antenna with the fractal defected ground structure for L-band applications," IET Microwaves Antennas & Propagation, Vol. 9, No. 11, 1179-1185, 2015.
    doi:10.1049/iet-map.2014.0596

    13. Tanaka, T., M. Takahashi, and K. Ito, "Miniaturization of circularly polarized patch antenna using circular sector element," IEEE International Workshop on Antenna Technology Small Antennas and Novel Metamaterials, 209-212, 2006.
    doi:10.1109/IWAT.2006.1609012

    14. Tiwari, H. and M. Kartikeyan, "A stacked microstrip patch antenna with fractal shaped defects," Progress In Electromagnetics Research C, Vol. 14, 185-195, 2010.
    doi:10.2528/PIERC10052903

    15. Gupta, S., S. Patil, C. Dalela, and B. K. Kanaujia, "Analysis and design of inclined fractal defected ground-based circularly polarized antenna for CA-band applications," International Journal of Microwave and Wireless Technologies, Vol. 13, No. 4, 397-406, 2021.
    doi:10.1017/S1759078720001142

    16. Radhakrishnan, R. and S. Gupta, "Axial ratio tuned circularly polarized slot-loaded antenna for S-band and C-band applications," Progress In Electromagnetics Research C, Vol. 113, 239-249, 2021.
    doi:10.2528/PIERC21050901

    17. Gupta, S., B. K. Kanaujia, C. Dalela, and S. Patil, "Design of circularly polarized antenna using inclined fractal defected ground structure for S-band applications," Electromagnetics, 1-15, 2020.

    18. Ambekar, A. G., A. A. Deshmukh, and V. A. P. Chavali, "Investigation into circular polarized response of square microstrip antenna using defected ground structure," International Conference on Communication information and Computing Technology (ICCICT), 2021.

    19. Tang, X., Z. Yao, Y. Li, W. Zong, G. Liu, and F. Shan, "A high performance UWB MIMO antenna with defected ground structure and U-shape branches," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 2, 21, 2020.

    20. Wei, K., B. Zhu, and M. Tao, "The circular polarization diversity antennas achieved by a fractal defected ground structure," IEEE Access, Vol. 7, 92030-92036, 2019.
    doi:10.1109/ACCESS.2019.2927280

    21. Baharuddin, M., V. Wissan, J. T. Sri Sumantyo, and H. Kuze, "Equilateral triangular microstrip antenna for circularly-polarized synthetic aperture radar," Progress In Electromagnetics Research C, Vol. 8, 107-120, 2009.
    doi:10.2528/PIERC09052202

    22. Deshmukh, A. A. and K. P. Ray, "Circularly polarized designs of modified isosceles triangular microstrip antennas," Engineering Reports, Vol. 2, No. 10, Jun. 2020.
    doi:10.1002/eng2.12250

    23. Ansys HFSS version 2020 R1, .

    24. Reddy, V. V. and N. V. S. N. Sarma, "Compact circularly polarized asymmetrical fractal boundary microstrip antenna for wireless applications," IEEE Antennas and Wireless Propagation Letters, Vol. 13, 118-121, 2014.
    doi:10.1109/LAWP.2013.2296951

    25. Pandey, S. K., G. P. Pandey, and P. M. Sarun, "Circularly polarized microstrip antenna with fractal trees loaded ground plane," Electromagnetics, Vol. 39, No. 7, 505-523, 2019.
    doi:10.1080/02726343.2019.1658167

    26. Zhang, Z.-L., K. Wei, J. Xie, J.-Y. Li, and L. Wang, "The new C-shaped parasitic strip for the single-feed Circularly Polarized (CP) microstrip antenna design," International Journal of Antennas and Propagation, Vol. 2019, 2019.

    27. Wei, K., J.-L. Wang, R. Xu, and X. Ai, "A new periodic fractal parasitic structure to design the circularly polarized microstrip antenna for the satellite navigation system," IET Microwaves Antennas and Propagation, Vol. 15, No. 15, 1891-1898, 2021.
    doi:10.1049/mia2.12203

    28. Samsuzzaman Md., I. and T. Mohammad, "Circularly polarized broadband printed antenna for wireless applications," Sensors, Vol. 18, No. 12, 4261, 2018.
    doi:10.3390/s18124261

    29. Singh, M. P., R. K. Jaiswal, K. V. Srivastava, and S. Ghosh, "A miniaturized triple-band circularly polarized antenna using meander geometry," Journal of Electromagnetic Waves and Applications, Vol. 36, No. 2, 286-236, 2022.
    doi:10.1080/09205071.2021.1961612