Table of Contents
ISRN Communications and Networking
Volume 2011, Article ID 941070, 5 pages
http://dx.doi.org/10.5402/2011/941070
Research Article

PMC-Based Waveguide-Fed Slot Array

E. E. Department, K. N. Toosi University of Technology, 19697 Tehran, Iran

Received 11 August 2010; Accepted 8 September 2010

Academic Editors: D. Liu, C. Luxey, and G. Tsoulos

Copyright © 2011 Amir Jafargholi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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.