A multiresolution method for simulating infinite periodic arrays

Author

Filipovic, Dejan S. ; Anderson, Lars S. ; Volakis, John L.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

48

Issue

11

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

1784

Lastpage

1786

Abstract

Hierarchical mixed-order tangential vector finite elements (TVFEs) for tetrahedra are attractive for accurate and efficient analysis of a wide class of electromagnetic radiation and scattering problems. They provide versatile geometrical modeling and accurate field representation by allowing combination of lowest and higher order TVFEs. In this letter, the finite-element boundary-integral (FE-BI) method with hierarchical TVFEs for tetrahedra is used for analysis of infinite, doubly periodic antenna arrays. It is shown that accurate prediction of array scanning properties can be obtained by using higher order TVFEs in the regions where large fields and rapid field variations are expected and lowest order TVFEs elsewhere. This is demonstrated in the case of a microstrip patch array

Keywords

antenna arrays; boundary integral equations; finite element analysis; microstrip antenna arrays; periodic structures; scanning antennas; accurate field representation; array scanning properties; doubly periodic antenna arrays; electromagnetic radiation; electromagnetic scattering; finite-element boundary-integral method; geometrical modeling; hierarchical mixed-order tangential vector finite elements; infinite periodic arrays simulation; microstrip patch array; multiresolution method; tetrahedra; Antenna arrays; Boundary conditions; Computational modeling; Finite element methods; Geometry; Microstrip antenna arrays; Periodic structures; Phased arrays; Predictive models; Solid modeling;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.900238

Filename

900238