volume | PIER Journals

Abstract

The design of a half U-slot loaded square microstrip antenna is proposed for the dual band response offering circular polarization in the second band. On a substrate with thickness of 0.06λ_g, the half U-slot tunes the spacing in between TM₁₀, TM₀₁ and TM₁₁ resonant modes of the square patch to achieve dual band characteristics. In the two bands, measured impedance bandwidths of 6.49% and 17.36% with a broadside gain > 7.0 dBi are achieved. Against the equivalent square patch, the proposed dual band antenna offers 8% reduction in the patch area. With the achieved antenna characteristics, the proposed configurations satisfy the requirements of GSM 750/GPS L5 band applications.

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

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

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

4. Balanis, C. A., Antenna Theory & Design, 3rd Edition, John Wiley & Sons Inc. Publication, 2005.

5. Heidari, A. A., M. Heyrani, and M. Nakhkash, "A 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. Khidre, A., F. Yang, and A. Z. Elsherbeni, "A patch antenna with a varactor-loaded slot for reconfigurable dual-Band operation," IEEE Transactions on Antennas and Propagation, Vol. 63, No. 2, 755-760, 2015.
doi:10.1109/TAP.2014.2376524

7. Cao, W., Q. Wang, B. Zhang, and W. Hong, "Capacitive probe-fed compact dual-band dual-mode dual-polarization microstrip antenna with broadened bandwidth," IET Microwave Antennas & Propagation, Vol. 11, No. 7, 1003-1008, 2017.
doi:10.1049/iet-map.2016.0781

8. Liu, S., W. Wu, and D. G. Fang, "Single-feed dual-layer dual-band e-shaped and u-slot patch antenna for wireless communication application," IEEE Antennas and Wireless Propagation Letters, Vol. 15, 468-471, 2015.

9. Liang, Z.-X., D. C. Yang, X. C. Wei, and E. P. Li, "Dual-band dual circularly polarized microstrip antenna with two eccentric rings and an arc-shaped conducting strip," IEEE Antennas and Wireless Propagation Letters, Vol. 15, 834-83, 2016.
doi:10.1109/LAWP.2015.2476505

10. Yang, H., Y. Fan, and X. Liu, "A compact dual-band stacked patch antenna with dual-circular polarizations for BeiDou navigation satellite systems," IEEE Antennas and Wireless Propagation Letters, Vol. 18, No. 7, 1472-1476, 2019.
doi:10.1109/LAWP.2019.2920265

11. Li, Y., B. Tian, J. Xue, and G. Ge, "Compact dual-band circularly polarized antenna design for navigation terminals," IEEE Antennas and Wireless Propagation Letters, Vol. 1, No. 15, 802-805, 2015.

12. Agarwal, K., Y. X. Guo, Nasimuddin, and A. Alphones, "Dual-band circularly polarized stacked microstrip antenna over RIS for GPS applications," 2013 IEEE International Wireless Symposium (IWS), 1-4, 2013.

13. Surya, D. S., D. Choudhary, A. Srivastava, and M. Manish Kumar, "Design of single-fed dual- polarized dual-band slotted patch antenna for GPS and SDARS applications," Microwave and Optical Technology Letters, Vol. 63, 353-360, 2020.

14. Liao, W. and Q. X. Chu, "Dual-band circularly polarized microstrip antenna with small frequency ratio," Progress In Electromagnetics Research Letters, Vol. 15, 145-152, 2010.
doi:10.2528/PIERL10052101

15. Falade, O. P., M. Ur-Rehman, X. Yang, G. A. Safdar, C. G. Parini, and X. Chen, "Design of a compact multiband circularly polarized antenna for global navigation satellite systems and 5G/B5G applications," International Journal of RF and Microwave Computer-Aided Engineering, Vol. 30, No. 6, 1-13, 2020.
doi:10.1002/mmce.22182

16. Nasimuddin, X. Qing, and Z. N. Chen, "A compact circularly polarized slotted patch antenna for GNSS Applications," IEEE Transactions on Antennas and Propagation, Vol. 62, No. 12, 6506-6509, 2014.
doi:10.1109/TAP.2014.2360218

17. Tan, Q. and F. C. Chen, "Triband circularly polarized antenna using a single patch," IEEE Antennas and Wireless Propagation Letters, Vol. 19, No. 12, 2013-2017, 2020.
doi:10.1109/LAWP.2020.3014961

18. Qin, P., Y. J. Guo, and C. A. Ding, "Dual-band polarization reconfigurable antenna for WLAN Systems," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 11, 5706-5713, 2013.
doi:10.1109/TAP.2013.2279219

19. Kim, B., B. Pan, S. Nikolaou, Y. Kim, J. Papapolymerou, and M. M. Tentzeris, "A novel single- feed circular microstrip antenna with reconfigurable polarization capability," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 3, 630-638, 2008.
doi:10.1109/TAP.2008.916894

20. Fakharian, M. M., P. Rezaei, and A. A. Orouji, "Reconfigurable multiband extended U-Slot antenna with switchable polarization for wireless applications," IEEE Antennas and Propagation Magazine, Vol. 57, No. 2, 1-9, 2015.
doi:10.1109/MAP.2015.2414665

21. Deshmukh, A. A. and G. Kumar, "Compact broadband U-slot-loaded rectangular microstrip antennas," Microwave and Optical Technology Letters, Vol. 46, No. 6, 556-559, 2005.
doi:10.1002/mop.21049

22., CST Microwave Studio, Version 2019.

23. Deshmukh, A. A. and K. P. Ray, "Formulation of resonance frequency for dual band slotted rectangular microstrip antennas," IEEE Magazine on Antennas and Propagation, Vol. 54, No. 4, 78-97, 2012.
doi:10.1109/MAP.2012.6309159

24. Deshmukh, A. A. and K. P. Ray, "Analysis and design of broadband U-slot cut rectangular microstrip antennas," Sadhana, Vol. 42, No. 10, 1671-1684, Academy Proceedings in Engineering Science, Springer Publication, 2017.
doi:10.1007/s12046-017-0699-4

25. Ambekar, A. G. and A. A. Deshmukh, "E-shape microstrip antenna for dual frequency WLAN application," Progress In Electromagnetic Research C, Vol. 104, 13-24, 2020.
doi:10.2528/PIERC20060204

26. Lee, K. F., S. L. Yang Steven, A. A. Kishk, and K. M. Luk, "The versatile U-slot patch antenna," IEEE Antennas and Propagation Magazine, Vol. 52, No. 1, 71-88, 2010.
doi:10.1109/MAP.2010.5466402

27. Deshmukh, A. A. and K. P. Ray, "Analysis of broadband variations of U-slot cut rectangular microstrip antennas," IEEE Magazine on Antennas and Propagation, Vol. 57, No. 2, 181-193, 2015.
doi:10.1109/MAP.2015.2414533

28. Lee, K. F., K. M. Luk, W. C. Mok, and P. Nayeri, "Single probe-fed circularly polarized patch antennas with U-slots," Microwave and Optical Technology Letters, Vol. 53, No. 6, 1245-1253, 2011.
doi:10.1002/mop.25982

29. He, M., X. Ye, P. Zhou, G. Zhao, C. Zhang, and H. Sun, "A small-size dual-feed broadband circularly polarized U-slot patch antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 14, 898-901, 2015.
doi:10.1109/LAWP.2014.2384496

30. Tong, K.-F. and T.-P. Wong, "Circularly polarized U-slot antenna," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 8, 2382-2385, 2007.
doi:10.1109/TAP.2007.901930

31. Yang, S., K. F. Lee, A. Kishk, and K.-M. Luk, "Design and study of wideband single feed circularly polarized microstrip antennas," Progress In Electromagnetics Research, Vol. 80, 45-61, 2008.
doi:10.2528/PIER07110604

32. Lam, K. Y., K.-M. Luk, K. F. Lee, H. Wong, and K. B. Ng, "Small circularly polarized U-slot wideband patch antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 10, 87-90, 2011.
doi:10.1109/LAWP.2011.2110631

33. Khidre, A., K. F. Lee, F. Yang, and A. Eisherbeni, "Wideband circularly polarized E-shaped patch antenna for wireless applications," IEEE Antennas and Propagation Magazine, Vol. 52, No. 5, 219-228, 2010.
doi:10.1109/MAP.2010.5687547

34. Deshmukh, A. A. and A. A. Odhekar, "Dual band circularly polarized modified-shape microstrip antenna," Progress In Electromagnetics Research C, Vol. 115, 161-174, 2021.
doi:10.2528/PIERC21062803

35. Kovitz, J. M., H. Rajagopalan, and Y. Rahmat-Samii, "Circularly polarised half E-shaped patch antenna: A compact and fabrication-friendly design," IET Microwaves, Antennas & Propagation, Vol. 10, No. 9, 932-938, 2016.
doi:10.1049/iet-map.2015.0550

36. Chen, Y. and C.-F. Wang, "Characteristic mode based improvement of circularly polarized U- slot and E-shaped patch antennas," IEEE Antennas and Wireless Propagation Letters, Vol. 11, 1474-1477, 2012.
doi:10.1109/LAWP.2012.2231046

Professor Aarti G. Ambekar

Professor Amit A. Deshmukh