volume | PIER Journals

Abstract

In this paper, a bandwidth improvement technique in SIW slotted antennas is presented. Distinct from conventional SIW antennas with multiple cavity modes, a single cavity mode (TE₂₁₀) is utilized to improve the bandwidth. When a rectangle slot is loaded at bottom surface of the cavity, the TE₂₁₀ cavity mode is perturbed. As a result, two independent modes (odd TE₂₁₀, even TE₂₁₀) are introduced and merged in close proximity. Finally, the antenna is fabricated and tested. The measured results render an impedance bandwidth of 12.8% and a maximum gain of 7.1 dBi. The cross-polar level of maximum -29 dB and -34 dB is at 9.73 GHz and 10.63 GHz, respectively. The proposed design holds many features such as easy fabrication and light weight. Besides, the proposed design is a single-layered that makes it extremely convenient to integrate with other planar configurations.

1. Yoshimura, Y., "A microstrip slot antenna," IEEE Trans. Microw. Theory Tech., Vol. 20, No. 11, 760-762, 1972, https://10.1109/TMTT.1972.1127868.
doi:10.1109/TMTT.1972.1127868 Google Scholar

2. Lee, Y. C. and J. S. Sun, "Compact printed slot antennas for wireless dual-and multi-band operations," Progress In Electromagnetics Research, Vol. 88, 289-305, 2008.
doi:10.2528/PIER08111902 Google Scholar

3. Lokeshwar, B., D. Venkatasekhar, and A. Sudhakar, "Quad band substrate integrated waveguide cavity backed slot antenna using balanced shorting vias," Wireless Pers. Commun., Vol. 125, 2565-2579, 2022, https://doi.org/10.1007/s11277-022-09674-2.
doi:10.1007/s11277-022-09674-2 Google Scholar

4. Harikowa, J., H. Arai, and N. Goto, "Cavity-backed wide slot antenna," IEE Proceedings H --- Microw. Antennas Propag., Vol. 136, No. 1, 29-33, 1989, https://doi.org/10.1049/ip-h-2.1989.0005. Google Scholar

5. Basit, M. A., G. Wen, N. Rasool, and X. Xue, "A wide-band cavity-backed slot antenna for end-fire radiation," Microwave & Optical Tech. Letters, Vol. 58, No. 1, 193-196, 2016, https://doi.org/10.1002/mop.29524.
doi:10.1002/mop.29524 Google Scholar

6. Deslandes, D. and K. Wu, "Integrated microstrip and rectangular waveguide in planar form," IEEE Microw Wirele. Comp. Lett., Vol. 11, No. 2, 68-70, 2001, https://doi.org/10.1109/7260.914305.
doi:10.1109/7260.914305 Google Scholar

7. Bozzi, M., A. Geordiadis, and K.Wu, "Review of substrate-integrated waveguide circuits and antennas," IET Microwaves Antennas Propag., Vol. 5, No. 8, 909-920, 2011, https://doi.org/10.1049/iet-map.2010.0463.
doi:10.1049/iet-map.2010.0463 Google Scholar

8. Kumar, A., G. Saini, and S. Singh, "A review on future planar transmission line," Cogent. Eng., Vol. 3, No. 1, 1-12, 2016, https://doi.org/10.1080/23311916.2016.1138920.
doi:10.1080/2331186X.2016.1139438 Google Scholar

9. Uchimura, H., T. Takenoshita, and M. Fujii, "Development of a laminated waveguide," IEEE Trans. Microw. Theory Tech., Vol. 46, No. 12, 2438-2443, 1998, https://doi.org/10.1109/22.739232.
doi:10.1109/22.739232 Google Scholar

10. Lokeshwar, B., D. Venkatasekhar, and A. Sudhakar, "Wideband low-profile SIW cavity-backed bilateral slots antenna for X-band application," Progress In Electromagnetics Research M, Vol. 97, 157-166, 2020.
doi:10.2528/PIERM20083004 Google Scholar

11. Bollavathi, L., V. Dorai, and S. Alapati, "Wideband planar substrate integrated waveguide cavity-backed amended dumbbell-shaped slot antenna," AEU --- Int. J. of Electron. Commun., Vol. 127, 153489, 2020, https://doi.org/10.1016/j.aeue.2020.153489.
doi:10.1016/j.aeue.2020.153489 Google Scholar

12. Luo, G. Q., Z. F. Hu, L. X. Dong, and L. L. Sun, "Planar slot antenna backed by substrate integrated waveguide cavity," IEEE Antennas Wireless Propag. Lett., Vol. 7, 236-239, 2008, https://doi.org/10.1109/LAWP.2008.923023. Google Scholar

13. Luo, G. Q., Z. F. Hu, W. J. Li, X. H. Zhang, L. L. Sun, and J. F. Zheng, "Bandwidth enhanced low-profile cavity-backed slot antenna by using hybrid SIW cavity modes," IEEE Trans. on Antennas Propagat., Vol. 60, 1698-1704, 2012, https://doi.org/10.1109/TAP.2012.2186226.
doi:10.1109/TAP.2012.2186226 Google Scholar

14. Mukherjee, S., A. Biswas, and K. V. Srivastava, "Bandwidth enhancement of substrate integrated waveguide cavity backed slot antenna by offset feeding technique," IEEE Appl. Electromagn. Conf., 1-2, 2013, https://doi.org/10.1109/AEMC.2013.7045029. Google Scholar

15. Mukherjee, S., A. Biswas, and K. V. Srivastava, "Broadband substrate integrated waveguide cavity-backed bow-tie slot antenna," IEEE Antennas Wireless Propag. Lett., Vol. 13, 1152-1155, 2014, https://doi.org/10.1109/LAWP.2014.2330743.
doi:10.1109/LAWP.2014.2330743 Google Scholar

16. Baghernia, E. and M. H. Neshati, "Development of a broadband substrate integrated waveguide cavity backed slot antenna using perturbation technique," Appl. Comput. Electromagn. Soc. J., Vol. 29, 847-855, 2014. Google Scholar

17. Varnoosfadetrani, M. V., J. Lu, and B. Zhu, "Matching slot role in bandwidth enhancement of SIW cavity-backed slot antenna," Asia-Pacific Conf. on Antennas and Propag., 244-247, 2014, https://doi.org/10.1109/APCAP.2014.6992464. Google Scholar

18. Kumar, A. and S. Raghavan, "Wideband slotted substrate integrated waveguide cavity backed antenna for Ku-band application," Microwave Opt. Technol. Lett., Vol. 59, No. 7, 1613-1619, 2017, https://doi.org/10.1002/mop.30594.
doi:10.1002/mop.30594 Google Scholar

19. Heydarzadeh, F. and M. H. Neshati, "Design and development a wideband SIW based cavity-backed slot antenna using two symmetrical circular corner perturbations," Int. J. RF Microw. Comput. Aided Eng., Vol. 28, No. 9, e21552, 2018, https://doi.org/10.1002/mmce.21552.
doi:10.1002/mmce.21552 Google Scholar

20. Dashti, H. and M. H. Neshati, "Development of low profile patch and semi-circular SIW cavity hybrid antennas," IEEE Trans. Antennas Propag., Vol. 62, No. 9, 4481-4488, 2014, https://doi.org/10.1109/TAP.2014.2334708.
doi:10.1109/TAP.2014.2334708 Google Scholar

21. Sarani, A. V., M. H. Neshati, and M. Fazaelifar, "Development of a wideband hexagonal SIW cavity-backed slot antenna array," AEU --- Int. J. Electron. Commun., Vol. 139, 153915, 2021, https://doi.org/10.1016/j.aeue.2021.153915.
doi:10.1016/j.aeue.2021.153915 Google Scholar

22. Niu, B. J. and J. H. Tan, "Bandwidth enhancement of low-profile SIW cavity antenna with bilateral slots," Progress In Electromagnetics Research Letters, Vol. 82, 25-32, 2019.
doi:10.2528/PIERL18102505 Google Scholar

23. Feng, C., J. Yang, L. Yan, Y. Zhang, Y. Geng, and W. Zhang, "Broadband substrate-integrated waveguide slot antenna," Electromagnetics, Vol. 32, No. 5, 294-304, 2012, https://doi.org/10.1080/02726343.2012.686844.
doi:10.1080/02726343.2012.686844 Google Scholar

24. Lokeshwar, B., D. Venkatasekhar, and A. Sudhakar, "Development of a low-profile broadband cavity backed bow-tie shaped slot antenna in SIW technology," Progress In Electromagnetics Research Letters, Vol. 100, 9-17, 2021.
doi:10.2528/PIERL21072404 Google Scholar

25. Ali, H. A., E. Massoni, L. Silvestri, M. Bozzi, L. Perregrini, and A. Gharsallah, "Increasing the bandwidth of cavity-backed SIW antennas by using stacked cavities," Int. J. Microw. Wirel. Tech., Vol. 10, No. 8, 942-947, 2018, https://doi.org/10.1017/S1759078718000478.
doi:10.1017/S1759078718000478 Google Scholar

26. Chaturvedi, D., "SIW cavity-backed 24^◦ inclined-slots antenna for ISM band application," Int. J. RF Microw. Comput. Aided Eng., Vol. 30, e22160, 2020, https://doi.org/10.1002/mmce.22160. Google Scholar

27. Liu, L., H. Wang, Z. Zhang, Y. Li, and Z. Feng, "Wideband substrate integrated waveguide cavity-backed spiral shaped patch antenna," Microw. Opt. Technol. Lett., Vol. 57, No. 2, 332-337, 2015, https://doi.org/10.1002/mop.28844.
doi:10.1002/mop.28844 Google Scholar

28. Yang, W. and J. Zhou, "Wideband low profile substrate integrated waveguide cavity backed E-shaped patch antenna," IEEE Antennas Wireless Propag. Lett., Vol. 12, 143-146, 2013, https://doi.org/10.1109/LAWP.2013.2241011.
doi:10.1109/LAWP.2013.2241011 Google Scholar

29. Yun, S., D. Y. Kim, and S. Nam, "Bandwidth enhancement of cavity backed slot antenna using a via-hole above the slot," IEEE Antennas Wireless Propag. Lett., Vol. 11, 1092-1095, 2012, https://doi.org/10.1109/LAWP.2012.2215911. Google Scholar

30. Yun, S., D. Y. Kim, and S. Nam, "Bandwidth and efficiency enhancement of cavity-backed slot antenna using a substrate removal," IEEE Antennas Wireless Propag. Lett., Vol. 11, 1458-1461, 2012, https://doi.org/10.1109/LAWP.2012.2230392. Google Scholar

31. Shi, Y., J. Liu, and Y. Long, "Wideband triple- and quad-resonance substrate integrated waveguide cavity-backed slot antennas with shorting vias," IEEE Trans. on Antennas Propagat., Vol. 65, No. 11, 5768-5775, 2017, https://doi.org/10.1109/TAP.2017.2755118.
doi:10.1109/TAP.2017.2755118 Google Scholar

32. Wu, Q., J. Yin, C. Yu, H.Wang, and W. Hong, "Broadband planar SIW cavity-backed slot antennas aided by unbalanced shorting vias," IEEE Antennas Wireless Propag. Lett., Vol. 18, No. 2, 363-367, 2019, https://doi.org/10.1109/LAWP.2019.2891108.
doi:10.1109/LAWP.2019.2891108 Google Scholar

33. Lokeshwar, B., D. Venkatasekhar, and A. Sudhakar, "Dual-band low profile SIW cavity-backed antenna by using bilateral slots," Progress In Electromagnetics Research C, Vol. 100, 263-273, 2020.
doi:10.2528/PIERC20021201 Google Scholar

Mr. Bollavathi Lokeshwar

Dr. Jammalamadugu Ravindranadh

Ms. Devabhaktuni Madhavi