Efficient electromagnetic modeling of three-dimensional multilayer microstrip antennas and circuits

Feng Ling, Jian Liu, Jian Ming Jin

Research output: Contribution to journalArticlepeer-review


An efficient method-of-moments (MoM) solution is presented for analysis of multilayer microstrip antennas and circuits. The required multilayer Green's functions are evaluated by the discrete complex image method (DCIM), with the guided-mode contribution extracted recursively using a multilevel contour integral in the complex k ρ-plane. An interpolation scheme is employed to further reduce the computer time for calculating the Green's functions in the three-dimensional (3-D) space. Higher order interpolatory basis functions defined on curvilinear triangular patches are used to provide necessary flexibility and accuracy for the discretization of arbitrary shapes and to offer a better convergence than lower order basis functions. The combination of the improved DCIM and the higher order basis functions results in an efficient and accurate MoM analysis for 3-D multilayer microstrip structures.

Original languageEnglish (US)
Pages (from-to)1628-1635
Number of pages8
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number6
StatePublished - Jun 2002


  • Green's function
  • Higher order method
  • Method of moments
  • Microstrip antennas
  • Microstrip circuits
  • Numerical analysis

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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