Integral equation modeling of waveguide-fed planar antennas

Ivica Stevanović*, Francesco Merli, Pedro Crespo-Valero, Winfried Simon, Sybille Holzwarth, Michael Mattes, Juan R. Mosig

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review


This paper presents a method for the analysis of planar multilayered waveguide-fed antennas. The method combines mixed-potential integral equations (for laterally open regions) and modal-field integral equations (for laterally closed regions) with a seamless transition between the two domains. The method has been implemented in a numerical tool, and the simulation results of two waveguide-fed planar structures are presented. The results are in good agreement with both measurements and simulations obtained with other commercial electromagnetic tools. Comparisons in terms of memory utilization and simulation time have also been performed.

Original languageEnglish
Article number5433099
JournalIEEE Antennas and Propagation Magazine
Issue number6
Pages (from-to)82-92
Number of pages11
Publication statusPublished - Dec 2009
Externally publishedYes


  • Green functions
  • Integral equations
  • Microstrip antennas
  • Microstrip arrays
  • Moment methods
  • Waveguide antennas


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