International Journal of Antennas and Propagation (Jan 2013)

IFA and PIFA Size Reduction by Using a Stub Loading

  • Jose Alfredo Tirado-Mendez,
  • Rene Acevo-Herrera,
  • Ruben Flores-Leal,
  • Roberto Linares-Miranda,
  • Hildeberto Jardon-Aguilar

DOI
https://doi.org/10.1155/2013/358704
Journal volume & issue
Vol. 2013

Abstract

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A proposed technique for size reduction of a conventional inverted-F antenna (IFA) and a planar inverted-F antenna (PIFA) by employing a reactive load generated by a short-circuited stub is presented. The reduction factor of both antennas is around 30%, and the main parameters of the devices are preserved, including a fractional bandwidth of 4% and a gain of −2 dB. Both antennas operate around 1.5 GHz.