Abstract
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 language | English (US) |
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Pages (from-to) | 1628-1635 |
Number of pages | 8 |
Journal | IEEE Transactions on Microwave Theory and Techniques |
Volume | 50 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2002 |
Keywords
- 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