Title :
Periodic boundary conditions for finite element analysis of infinite phased array antennas
Author :
McGrath, D.T. ; Pyati, V.P.
Author_Institution :
USAF Phillips Lab., Kirtland, NM, USA
Abstract :
The finite element method (FEM) has been used to solve for the active reflection coefficient of planar phased arrays. One of the key features of the solution is a periodic boundary condition applied to the three-dimensional FEM mesh to represent periodicity in two directions (including skewed grids), thereby satisfying the Floquet condition. This paper presents the formalism for the periodicity condition, and shows some example calculations for illustrative purposes.
Keywords :
antenna phased arrays; antenna theory; electromagnetic wave reflection; mesh generation; microstrip antenna arrays; Floquet condition; active reflection coefficient; finite element analysis; infinite phased array antennas; periodic boundary conditions; periodicity condition; planar phased arrays; skewed grids; three-dimensional FEM mesh; Antenna arrays; Boundary conditions; Coaxial components; Dielectric substrates; Feeds; Finite element methods; Lattices; Phased arrays; Reflection; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.408213
