PMC-Based Waveguide-Fed Slot Array
Author(s) -
Amir Jafargholi,
Manouchehr Kamyab,
Mehdi Veysi
Publication year - 2010
Publication title -
isrn communications and networking
Language(s) - English
Resource type - Journals
eISSN - 2090-4363
pISSN - 2090-4355
DOI - 10.5402/2011/941070
Subject(s) - conductor , slot antenna , electrical impedance , bandwidth (computing) , waveguide , antenna (radio) , radiation , slotted waveguide , optics , acoustics , electrical conductor , physics , radiation pattern , computer science , materials science , electrical engineering , engineering , telecommunications , composite material
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.
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