PMC-based waveguide-fed slot array

  • Authors:

  • Amir Jafargholi;Manouchehr Kamyab;Mehdi Veysi

  • Affiliations:

  • E. E. Department, K. N. Toosi University of Technology, Tehran, Iran;E. E. Department, K. N. Toosi University of Technology, Tehran, Iran;E. E. Department, K. N. Toosi University of Technology, Tehran, Iran

  • Venue:
  • ISRN Communications and Networking
  • Year:
  • 2011

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Abstract

Perfect magnetic conductors (PMCs) can help in the enhancement of antenna impedance bandwidth using their capability of reflecting the incident waves without phase reversal. The purpose of this paper is to show the advantages of using a perfect magnetic conductor in antenna engineering. The goal is to use it in waveguide-fed slot array antennas, increasing both the antenna impedance and radiation bandwidths. To this aim, a PMC-based rectangular waveguide composed of longitudinal slots is convenient. The impedance of the proposed array structure is calculated analytically. To compare analytical results with the simulation results, PEC- and PMC-based waveguide-fed slot arrays are designed and simulated in a certain frequency band. The simulation results are in good agreement with the theoretical predictions.