A UTD-OM technique to design slot arrays on a perfectly conducting paraboloid

Theodoros N. Kaifas, Theodoros Samaras, Katherine Siakavara, John N. Sahalos

Research output: Contribution to journalArticlepeer-review


A procedure that can be employed to design slot arrays on smooth convex conducting surfaces is presented. The uniform theory diffraction (UTD) for the analysis and the orthogonal method (OM) for the synthesis have been used. Detailed description of the method is given and it is accompanied by a design study of a slot array on a perfectly conducting paraboloid. UTD has been applied after a proper re-construction and re-evaluation of the diffraction integral. Thus, a method for treatment of caustics formed on convex surfaces comes out as a by-product of our study. Coupling phenomena between two slots on convex surfaces are also addressed.

Original languageEnglish
Pages (from-to)1688-1698
Number of pages11
JournalIEEE Transactions on Antennas and Propagation
Issue number5
Publication statusPublished - May 2005


  • Caustics
  • Conformal arrays
  • Diffraction theory
  • Mutual admittance
  • Orthogonal method (OM)
  • Ray-tracing
  • Slot arrays


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