Pulsed Electromagnetic Excitation of a Narrow Slot Between Two Dielectric Halfspaces

Martin Stumpf*, Giulio Antonini, Ioan E. Lager

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
15 Downloads (Pure)


The transient electromagnetic (EM) excitation of a narrow slot in a perfectly electrically conducting (PEC) screen that separates two homogeneous dielectric halfspaces, a simplified model of a typical feeding structure of leaky lens antennas, is analyzed numerically in the time domain (TD). The problem is formulated using the TD reciprocity theorem of the time-convolution type and subsequently solved with the aid of the Cagniard-DeHoop method of moments (CdH-MoM). Numerical results are validated using a general-purpose EM-field solver.
Original languageEnglish
Pages (from-to)123-130
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number1
Publication statusPublished - 2024


  • transient electromagnetic (EM) field
  • slot antennas
  • Cagniard-DeHoop method of moments (CdH-MoM)
  • time-domain (TD) analysis


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