Analysis of airframe-mounted antennas using parallel and hybridized finite-element time-domain methods

Author

Riley, D.J. ; Pasik, M.F. ; Kotulski, J.D. ; Turner, C.D. ; Rile, N.W.

Author_Institution

Sandia Nat. Lab., Albuquerque, NM, USA

Volume

3

fYear

2002

fDate

2002

Firstpage

168

Abstract

The application of numerical methods to electrically large, three-dimensional geometries typically requires the use of parallel-processing techniques. The distributed parallelization of the finite-element time-domain-finite-difference time-domain (FETD-FDTD) hybrid is described. An application is provided for antenna radiation on a realistic airframe. The parallelization procedure requires two domain decompositions: one for the structured, finite-difference grid, and the other for the unstructured, finite-element grid. The two grids communicate across the interface shown. The FETD method and the interface to FDTD are described, and the parallelization implementation is presented together with applications.

Keywords

aircraft antennas; broadband antennas; finite difference time-domain analysis; finite element analysis; monopole antennas; parallel programming; spiral antennas; wire antennas; FETD-FDTD hybrid; airframe-mounted antennas; antenna radiation; broadband logarithmic spirals; distributed parallelization; electrically large 3D geometries; electrically large three-dimensional geometries; finite-difference time-domain; finite-element time-domain; hybridized finite-element time-domain method; interface; numerical methods; parallel finite-element time-domain method; parallel-processing techniques; structured finite-difference grid; thin-wire monopole antenna; unstructured finite-element grid; Boundary conditions; Finite difference methods; Finite element methods; Geometry; Laboratories; Partial differential equations; Sparse matrices; Stability; Surface waves; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2002. IEEE

Print_ISBN

0-7803-7330-8

Type

conf

DOI

10.1109/APS.2002.1018182

Filename

1018182