Design of a Square-Shaped Broadband Antenna with Ground Slots for Bandwidth Improvement

  • Authors

    • K M. Jyothsna
    • S Suganthi
    2018-07-04
    https://doi.org/10.14419/ijet.v7i3.6.14935
  • Broadband antenna, microstrip feed, ground slots.
  • This paper portrays the design of a compact square-shaped microstrip broadband antenna using ground slots. Polygon shaped slots are placed on the ground under the feed line for bandwidth improvement. Similarly, rectangular slots are placed on the square patch for gain enhancement. Effect of these slots on the performance of the antenna in terms of impedance bandwidth, gain and directivity are studied.  Results of simulation tests show that a ground slot with proper dimensions placed under the feed line can improve the impedance matching and hence increase the bandwidth without affecting much the performance of the antenna. This compact antenna of size 9.098 x 9.098 mm can be very useful for applications where size is a major constraint. Simple microstrip feed is used to feed the patch. The percentage bandwidth of this antenna is 75.57 %.

     

  • References

    1. [1] Singh I & Tripathi V, “Micro strip patch antenna and its applications: a surveyâ€, Int. J. Comp. Tech. Appl, (2011), pp.1595-1599.

      [2] Thorat SS, Jaiswal RC, Rajkumar D & Lokhande DS, “Efficient techniques for bandwidth improvement of microstrip patch antennaâ€, IRA CST-International Journal of Computer Networks and Wireless Communications (IJCNWC), (2012).

      [3] Gupta NP, Maheshwari R & Kumar M, “Advancement in ultra wideband antennas for wearable applicationsâ€, Int. J. Sci. Eng. Res., (2013), pp.341-348.

      [4] Kumar R, Shinde J & Uplane M, “Effect of slots in ground plane and patch on microstrip antenna performanceâ€, International journal of recent trends in engineering, (2009), pp.34-36.

      [5] Afridi MA, “Microstrip patch antenna−designing at 2.4 GHz frequencyâ€, Biological and chemical research, (2015).

      [6] Sivakumar E, Srinivasa Rao O & Manikandan A, “Bandwidth Enhancement of Rectangular Microstrip Patch Antenna using Slotsâ€, IQSR Journal of Electronics and Communication Engineering (IQSRJECE), (2013), pp.07-10.

      [7] Jose SK & Suganthi S, “Rectangular microstrip antenna for WLAN applicationâ€, International Conference on Innovations in Information, Embedded and Communication Systems (ICIIECS), (2015).

      Roy AA, Mom JM & Igwue GA, “Enhancing the bandwidth of a microstrip patch antenna using slots shaped patchâ€, American Journal of Engineering Research, (2013).
  • Downloads

  • How to Cite

    M. Jyothsna, K., & Suganthi, S. (2018). Design of a Square-Shaped Broadband Antenna with Ground Slots for Bandwidth Improvement. International Journal of Engineering & Technology, 7(3.6), 45-47. https://doi.org/10.14419/ijet.v7i3.6.14935