Scattering and Radiation Analysis of Three-Dimensional Cavity Arrays Via A Hybrid Finite-Element Method

Jian Ming Jin, John L. Volakis

Research output: Contribution to journalArticlepeer-review

Abstract

A hybrid numerical technique is presented for a characterization of the scattering and radiation properties of three-dimensional cavity arrays recessed in a ground plane. The technique combines the finite-element and boundary-integral methods and invokes Floquet’s representation to formulate a system of equations for the fields at The apertures and those inside the cavities. The system is solved via the conjugate-gradient method in conjunction with the fast Fourier transform thus achieving an O(N) storage requirement. By virtue of the finite-element method, the proposed technique is applicable to periodic arrays comprised of cavities having arbitrary shape and filled with inhomogeneous dielectrics. Several numerical results are presented, along with new measured data, which demonstrate the validity, efficiency, and capability of the technique.

Original languageEnglish (US)
Pages (from-to)1580-1586
Number of pages7
JournalIEEE Transactions on Antennas and Propagation
Volume41
Issue number11
DOIs
StatePublished - Nov 1993
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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