Finite-width feed and load models

Yat Hei Lo, Li Jun Jiang, Weng Cho Chew

Research output: Contribution to journalArticlepeer-review


We demonstrate a new method of applying the feed model for the method of moments (MoM) formulation for the electric field integral equation (EFIE). The model is based around a previously reported magnetic ribbon current model which is accurate and allows for a finite width of the feed port. However, with proper approximations, one can reduce the formulation such that the magnetic field operator can be removed in order to simplify computations arising from the curl of the dyadic Green's function and its singularities. We show here that the new feed model can also be used to model a lumped element.

Original languageEnglish (US)
Article number6287002
Pages (from-to)281-289
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number1
StatePublished - 2013


  • Delta-gap source
  • EFIE
  • input impedance
  • magnetic-current source
  • variational formula

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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