International Journal of Electronics and Telecommunications (Jun 2024)

Bandwidth enhancement for QMSIW antenna by using dual cavity and triangle slot

  • Dian Widi Astuti,
  • Juprida Parrona Purba,
  • Muslim Muslim,
  • Imelda Uli Vistalina Simanjuntak,
  • Yuliza Yuliza,
  • Fina Supegina,
  • Syah Alam,
  • Setiyo Budiyanto

DOI
https://doi.org/10.24425/ijet.2024.149574
Journal volume & issue
Vol. vol. 70, no. No 2
pp. 519 – 524

Abstract

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The miniaturization of substrate-integrated waveguide (SIW) antenna suffers from the narrow impedance bandwidth. It occurs on the quarter mode substrate integrated waveguide (QMSIW) antenna that has 75% miniaturization of the full mode SIW. This research proposed the bandwidth enhancement for QMSIW antenna by using dual cavity and triangle slot. The QMSIW antenna feeds in a single port. The impedance bandwidth simulation has an 8.6% fractional bandwidth improved with dual resonant frequencies. The simulation result was validated with the measured impedance bandwidth.

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