TY - JOUR
T1 - Discrete Dipole Approximation Applied to Highly Directive Slotted Waveguide Antennas
AU - Pulido-Mancera, Laura M.
AU - Zvolensky, Tomas
AU - Imani, Mohammadreza F.
AU - Bowen, Patrick T.
AU - Valayil, Minu
AU - Smith, David R.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016
Y1 - 2016
N2 - We present an analysis of a slotted waveguide antenna (SWA) whose directivity has been enhanced by using metamaterial parasitic elements. We apply an adapted form of the discrete dipole approximation (DDA) as a modeling tool and verify the accuracy and versatility of this method for different configurations, including matched and shorted SWAs, and with and without parasitic elements. The results presented in this letter demonstrate the capabilities of the DDA for the fast and accurate simulation of aperture antennas composed of small radiators, and its further application for the design of complex metamaterial structures.
AB - We present an analysis of a slotted waveguide antenna (SWA) whose directivity has been enhanced by using metamaterial parasitic elements. We apply an adapted form of the discrete dipole approximation (DDA) as a modeling tool and verify the accuracy and versatility of this method for different configurations, including matched and shorted SWAs, and with and without parasitic elements. The results presented in this letter demonstrate the capabilities of the DDA for the fast and accurate simulation of aperture antennas composed of small radiators, and its further application for the design of complex metamaterial structures.
KW - Discrete dipole approximation
KW - metamaterial antennas
KW - parasitic elements
KW - slotted waveguide antennas
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U2 - 10.1109/LAWP.2016.2538202
DO - 10.1109/LAWP.2016.2538202
M3 - Article
AN - SCOPUS:84999750739
SN - 1536-1225
VL - 15
SP - 1823
EP - 1826
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
M1 - 7425147
ER -