Convergence and Error Estimation in the Method of Moments.
Abstract
In this report, we developed a new algorithm for modeling thin wire antennas. The basis functions, boundary condition, and impedance matric are formulated to minimize the impact of errors on the accuracy of the charge distribution. The charge distribution on a segment is modeled with multipole basis functions. The high-order multipoles basis functions interact primarily with the charge distribution on neighboring segments. The boundary condition limits the error in the charge distribution to high-order multipoles. Consequently, the errors introduced by the boundary condition are local. The boundary condition also allows the errors on each segment to be estimated. The error in the boundary condition is the product of the boundary condition error matrix and the solution. The boundary condition error matrix and the impedance matrix are computed at the same time. The stability and convergence of the algorithm is illustrated by computing the input impedance and the charge distribution of the symmetric dipole. The concepts used to define the basis functions and boundary conditions can be applied to general antenna problems. However, the computer code is limited to the modeling of the symmetric dipole.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1994
- Accession Number
- ADA317065
Entities
People
- T. O. Jones Iii
Organizations
- Naval Command, Control and Ocean Surveillance Center