volume | PIER Journals

Abstract

Thinner substrate designs of square and circular microstrip antennas using fractal variations of U-shape and half U-shape slot cut ground plane are proposed for circularly polarized response. The 1st, 2nd, and 3rd order fractal variations of slots on the ground plane are studied. The fractal slot cut variations degenerate patch fundamental mode into dual orthogonal resonant modes, and an optimum spacing between them yields circularly polarized characteristics. Amongst all the designs, circular microstrip antenna using the 1st order fractal U-slot design yields optimum result. It offers axial ratio bandwidth of 60 MHz (2.14%) with a broadside radiation pattern and peak gain of 5.5 dBi, on a substrate of 0.02λ_g thickness and patch area 1.44λ_g. Against the reported designs, the current work presents a low profile single patch circularly polarized configuration.

1. Balanis, C. A., Antenna Theory & Design, 3rd Ed., John Wiley & Sons Inc., 2005.

2. Garg, R., P. Bhartia, and I. Bahl, Microstrip Antenna Design Handbook, Artech House, London, 2001.

3. Kumar, G. and K. P. Ray, Broadband Microstrip Antennas, 1st Ed., Artech House, USA, 2003.

4. Wong, K. L., Compact and Broadband Microstrip Antennas, 1st Ed., John Wiley & Sons, Inc., New York, USA, 2002.
doi:10.1002/0471221112

5. Heidari, A. A., M. Heyrani, and A. Nakhkash, "Dual band circularly polarized stub loaded microstrip patch antenna for GPS applications," Progress In Electromagnetics Research, Vol. 92, 195-208, 2009.
doi:10.2528/PIER09032401

6. Jamal, M. Y., M. Li, and K. L. Yeung, "Isolation enhancement of closely packed dual circularly polarized MIMO antenna using hybrid technique," IEEE Access, Vol. 8, 11241-11247, 2020.
doi:10.1109/ACCESS.2020.2964902

7. Hao, S., Q. Chen, J. Li, and J. A. Xie, "High-gain circularly polarized slotted patch antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 19, No. 6, 1022-1026, 2020.
doi:10.1109/LAWP.2020.2987330

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

9. Bernard, L. B. K., Nasimuddin, and A. Alphones, "An E-shaped slotted-circular patch antenna for circularly polarized radiation and radio frequency energy harvesting," Microwave and Optical Technology Letters, Vol. 58, No. 5, 868-875, 2016.
doi:10.1002/mop.29689

10. Zhang, X., L. Zhu, and N. Liu, "Pin-loaded circularly-polarized patch antennas with wide 3-dB axial ratio bandwidth," IEEE Transactions on Antennas and Propagation, Vol. 65, No. 2, 521-528, 2017.
doi:10.1109/TAP.2016.2632728

11. Dia, W. J. and Z. F. Huang, "A broadband circularly polarized stacked microstrip patch antenna with parasitic elements," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 32, No. 8, 1-8, 2021.

12. Falade, O. P., M. U. Rehman, Y. Gao, X. Chen, and C. G. Parini, "Single feed stacked patch circular polarized antenna for triple band GPS receivers," IEEE Transactions on Antennas and Propagation, Vol. 60, No. 10, 4479-4484, 2012.
doi:10.1109/TAP.2012.2207354

13. Dash, S. K., Q. S. Qingsha, T. Cheng, and T. Khan, "An off-center-fed compact wideband antenna with truncated corners and parasitic patches for circular polarization," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 30, No. 8, 1-10, 2020.
doi:10.1002/mmce.22244

14. Jagtap, S. D., R. Thakare, and R. K. Gupta, "Low profile, high gain and wideband circularly polarized antennas using hexagonal shape parasitic patches," Progress In Electromagnetics Research C, Vol. 95, 15-27, 2019.
doi:10.2528/PIERC19060602

15. Lin, J. and Q. Chu, "Enhancing bandwidth of CP microstrip antenna by using parasitic patches in annular sector shapes to control electric field components," IEEE Antennas Wireless Propagation Letters, Vol. 17, No. 5, 924-927, 2018.
doi:10.1109/LAWP.2018.2825236

16. Sim, C. Y. D., Y. W. Hsu, C. W. Lin, and G. Yang, "Broadband circularly polarized antenna with moon-shaped parasitic element," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 26, No. 5, 387-395, 2016.
doi:10.1002/mmce.20972

17. Sarkar, S. and B. Gupta, "A dual-band circularly polarized antenna with a dual-band AMC reflector for RFID readers," IEEE Antennas and Wireless Propagation Letters, Vol. 19, No. 5, 796-800, 2020.
doi:10.1109/LAWP.2020.2980325

18. Sheersha, J. A., N. Nasimuddin, and A. A. Alphones, "High gain wideband circularly polarized antenna with asymmetric meta-surface," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 29, No. 7, 1-9, 2019.
doi:10.1002/mmce.21740

19. Agrawal, N. and A. K. Gautum, "Design of low volume circularly polarized annular ring-shaped planar antenna for GPS applications," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 31, No. 4, 1-12, 2021.

20. Deshmukh, A. A. and K. P. Ray, "Circularly polarized designs of modified isosceles triangular microstrip antennas," Engineering Reports, Wiley Publication, (https://onlinelibrary.wiley.com/doi/10.1002/eng2.12250).

21. Kovitz, J. M., R. Harish, and R.-S. Yahya, "Circularly polarised half E-shaped patch antenna: A compact and fabrication-friendly design," IET Microwave Antennas and Propagation, Vol. 10, No. 9, 932-938, 2016.
doi:10.1049/iet-map.2015.0550

22. Mondal, T., M. Sandip, G. Rowdra, and B. C. S. Ranjan, "Design and analysis of a wideband circularly polarized perturbed psi-shaped antenna," IET Microwaves, Antennas & Propagation, Vol. 12, No. 9, 1582-1586, 2018.
doi:10.1049/iet-map.2017.0569

23. Vijayankutty, R., M. Abraham, P. Parvathy Ambalath, and M. Thomaskutty, "Multiband circularly polarised microstrip patch antenna with Minkowski fractal slot for wireless communications," Progress In Electromagnetics Research C, Vol. 116, 65-80, 2021.

24. 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

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

26. 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 Propagation, Vol. 65, No. 7, 3721-3725, 2017.
doi:10.1109/TAP.2017.2700226

27. Shinde, J. P., R. Kumar, and M. D. Uplane, "Circularly polarization in defected hexagonal shaped microstrip antenna," Wireless Personal Communications, Vol. 75, No. 2, 843-856, 2014.
doi:10.1007/s11277-013-1394-3

28. Maurya, R. K., B. K. Kanaujia, A. K. Gautam, S. Chatterji, and A. K. Singh, "Circularly polarized hexagonal ring microstrip patch antenna with asymmetrical feed and DGS," Microwave and Optical Technology Letters, Vol. 62, No. 4, 1-7, 2019.

29. Jhajharia, T. and V. Tiwari, "Polarisation reconfigurable dual-band circularly polarised patch antenna with defected ground plane for C-band wireless applications," IET Microwaves, Antennas & Propagation, Vol. 13, No. 14, 2551-2558, 2019.
doi:10.1049/iet-map.2018.6214

30. Kadam, P. A. and A. A. Deshmukh, "Variations of compact rectangular microstrip antennas using defected ground plane structure: Compact rectangular microstrip antennas," Journal of Microwaves Optoelectronics and Electromagnetic Applications, Vol. 21, No. 2, 265-283, 2022.
doi:10.1590/2179-10742022v21i2256950

31. IE3D software, Version 12.

32. CST Software, Version 2019.

33. Guha, D. and Y. M. M. Antar, Microstrip and Printed Antennas New Trends, Techniques and Applications, Wiley & Sons Publication, 2011.

34. Darimireddy Naresh, K., R. Ramana Reddy, and A. Mallikarjuna Prasad, "Asymmetric triangular semi-elliptic slotted patch antennas for wireless applications," Radioengineering, Vol. 27, No. 1, 85-93, 2018.
doi:10.13164/re.2018.0085

35. Wei, Z., H. Zhai, S. Ma, D. Yang, and K. Xue, "A low-profile broadband circular polarization filtering antenna," Microwave and Optical Technology Letters, Vol. 60, No. 12, 3029-3033, 2018.
doi:10.1002/mop.31446

36. Lee, S., S. Pyo, and J.-H. Kim, "Dual-band bidirectional circularly polarized microstrip antenna for CubeSat system," Microwave and Optical Technology Letters, Vol. 60, No. 12, 2989-2992, 2018.
doi:10.1002/mop.31423

37. Lee, S., S. Pyo, and J.-H. Kim, "Circularly polarized microstrip antenna with bidirectional radiation using dual-layered arrow-shape slot perturbation for CubeSat application," Microwave and Optical Technology Letters, Vol. 60, No. 8, 2018-2022, 2018.
doi:10.1002/mop.31297

38. Sung, Y. J., "Circularly polarized Mercedes-Benz logo antenna for GPS applications," Microwave and Optical Technology Letters, Vol. 58, No. 10, 2308-2311, 2016.
doi:10.1002/mop.30034

39. Chaccour, C., M. N. Soorki, W. Saad, M. Bennis, P. Popovski, and M. Debbah, "Seven defining features of terahertz (THz) wireless systems: A fellowship of communication and sensing," IEEE Communications Surveys & Tutorials, Vol. 24, No. 2, 967-993, 2022.
doi:10.1109/COMST.2022.3143454

Professor Aarti G. Ambekar

Professor Amit A. Deshmukh