Discrete Dipole Approximation Applied to Highly Directive Slotted Waveguide Antennas

Laura M. Pulido-Mancera; Tomas Zvolensky; Mohammadreza F. Imani; Patrick T. Bowen; Minu Valayil; David R. Smith

doi:10.1109/LAWP.2016.2538202

Discrete Dipole Approximation Applied to Highly Directive Slotted Waveguide Antennas

Laura M. Pulido-Mancera, Tomas Zvolensky, Mohammadreza F. Imani, Patrick T. Bowen, Minu Valayil, David R. Smith

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

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.

Original language	English (US)
Article number	7425147
Pages (from-to)	1823-1826
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	15
DOIs	https://doi.org/10.1109/LAWP.2016.2538202
State	Published - 2016
Externally published	Yes

Keywords

Discrete dipole approximation
metamaterial antennas
parasitic elements
slotted waveguide antennas

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/LAWP.2016.2538202

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title = "Discrete Dipole Approximation Applied to Highly Directive Slotted Waveguide Antennas",

abstract = "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.",

keywords = "Discrete dipole approximation, metamaterial antennas, parasitic elements, slotted waveguide antennas",

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AU - Pulido-Mancera, Laura M.

AU - Zvolensky, Tomas

AU - Imani, Mohammadreza F.

AU - Bowen, Patrick T.

AU - Valayil, Minu

AU - Smith, David R.

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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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