DocumentCode :
756760
Title :
Efficient electromagnetic modeling of three-dimensional multilayer microstrip antennas and circuits
Author :
Ling, Feng ; Liu, Jian ; Jin, Jian-Ming
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Volume :
50
Issue :
6
fYear :
2002
fDate :
6/1/2002 12:00:00 AM
Firstpage :
1628
Lastpage :
1635
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 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
Keywords :
Green´s function methods; antenna theory; convergence of numerical methods; interpolation; method of moments; microstrip antennas; microstrip circuits; 3D multilayer microstrip structures; EM modelling; MoM solution; convergence; curvilinear triangular patches; discrete complex image method; electromagnetic modeling; guided-mode contribution; higher order method; interpolation scheme; method-of-moments solution; multilayer Green´s functions; multilayer microstrip antennas; multilayer microstrip circuits; multilevel contour integral; numerical analysis; Circuits; Computational electromagnetics; Convergence; Electromagnetic modeling; Interpolation; Microstrip antennas; Moment methods; Nonhomogeneous media; Shape; Surface treatment;
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/TMTT.2002.1006425
Filename :
1006425
Link To Document :
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