Vol. 124

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2022-09-16

A Comparative Investigation on Effect of Coupling in Aperture Coupled Microstrip Antennas

By Mahendra Prasad Yadav, Rajesh Kumar Singh, and Kamla Prasan Ray
Progress In Electromagnetics Research C, Vol. 124, 69-79, 2022
doi:10.2528/PIERC22063002

Abstract

This paper investigates the electromagnetic coupling from various aperture shapes in aperture coupled suspended rectangular microstrip antennas. The proposed study involves various shapes of coupling aperture such as ``rectangle'', ``H'', ``bowtie'', and ``hourglass'' with a single-layer aperture coupled suspended rectangular microstrip antenna. Among the various shapes, ``hourglass'' shaped aperture yields maximum coupling leading to maximum bandwidth. For the validation aperture coupled suspended rectangular microstrip antenna with ``hourglass-shaped'' aperture is fabricated, and measurements were carried out. The measured fractional impedance bandwidth (FBW) with ``hourglass'' aperture is more than 30% at 1.06 GHz. Measured peak gain and front-to-back (F/B) ratio of aperture coupled suspended microstrip antenna with ``hourglass'' at 1.06 GHz are 8.5 dBi and greater than 11.2 dB, respectively. The influence on the antenna's performance parameters such as realized gain, impedance bandwidth, and F/B ratio due to metallic mounting surface is also investigated. The simulated and measured performances of the antenna are in agreement. The proposed investigation is very useful for various applications, when broadband antenna is mounted on a metallic body.

Citation


Mahendra Prasad Yadav, Rajesh Kumar Singh, and Kamla Prasan Ray, "A Comparative Investigation on Effect of Coupling in Aperture Coupled Microstrip Antennas," Progress In Electromagnetics Research C, Vol. 124, 69-79, 2022.
doi:10.2528/PIERC22063002
http://jpier.org/PIERC/pier.php?paper=22063002

References


    1. Pozar, D. M., "A review of aperture coupled microstrip antennas: History, operation, development, and applications,", 1-9, University of Massachusetts at Amherst, 1996.

    2. Kumar, G. and K. P. Ray, Broadband Microstrip Antennas, Artech House, 2003.
    doi:10.1049/el:19910705

    3. Pozar, D. M. and S. D. Targonski, "Improved coupling for aperture coupled microstrip antennas," Electronics Letters, Vol. 27, No. 13, 1129-1131, 1991.
    doi:10.1109/8.511831

    4. Rathi, V., G. Kumar, and K. P. Ray, "Improved coupling for aperture coupled microstrip antennas," IEEE Transactions on Antennas and Propagation, Vol. 44, No. 8, 1196-1198, 1996.

    5. Jazi, M. N., Z. H. Firouzeh, H. Mirmohammad-Sadeghi, and G. Askari, "Design and implementation of aperture coupled microstrip IFF antenna," PIERS Proceedings, 198-202, Hangzhou, China, March 24-28, 2008.

    6. Aijaz, Z. and S. C. Shrivastava, "An introduction of aperture coupled microstrip slot antenna," International Journal of Engineering Science and Technology, Vol. 2, No. 1, 36-39, 2010.

    7. Aijaz, Z. and S. C. Shrivastava, "Effect of the different shapes: Aperture coupled microstrip slot antenna," International Journal of Electronics Engineering, Vol. 2, No. 1, 103-105, 2010.

    8. Aijaz, Z. and S. C. Shrivastava, "Coupling effects of aperture coupled microstrip antenna," International Journal of Engineering Trends and Technology, Vol. 20, No. 11, 2011.

    9. Rathod, J. M., "Comparative study of microstrip patch antenna for wireless communication application," International Journal of Innovation, Management and Technology, Vol. 1, No. 2, 194-197, 2010.

    10. Singh, M., A. Basu, and S. K. Koul, "Design of aperture coupled fed micro-strip patch antenna for wireless communication," 2006 Annual IEEE India Conference, IEEE, 2006.

    11. Kharade, S. A., S. V. Khobragade, and A. Bagwari, "An aperture coupled microstrip patch antenna for application at 7.5 GHz," International Journal of Engineering Research & Technology (IJERT), Vol. 8, No. 7, July 2019.

    12. Jiang, H. and K. Cho, "Novel broadband aperture-coupled patch antenna using bow-tie shaped slot," Proc. ISAP 2006, Session D, 2006.
    doi:10.1016/j.ijin.2020.11.002

    13. Anandkumar, D. and R. G. Sangeetha, "Design and analysis of aperture coupled micro strip patch antenna for radar applications," International Journal of Intelligent Networks, Vol. 1, 141-147, 2020.
    doi:10.2528/PIERB08072603

    14. Ghassemi, N., J. Rashed-Mohassel, M. H. Neshati, S. Tavakoli, and M. Ghassemi, "A high gain dual stacked aperture coupled microstrip antenna for wideband applications," Progress In Electromagnetics Research B, Vol. 9, 127-135, 2008.

    15. Rahim, M. K. A., et al., "Aperture coupled microstrip antenna with different feed sizes and aperture positions," 2006 International RF and Microwave Conference, IEEE, 2006.