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 journalArticlepeer-review

40 Scopus citations


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 languageEnglish (US)
Article number7425147
Pages (from-to)1823-1826
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
StatePublished - 2016
Externally publishedYes


  • Discrete dipole approximation
  • metamaterial antennas
  • parasitic elements
  • slotted waveguide antennas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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