𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Calculation of electromagnetic anomalies of perfectly conducting bodies by integral equations

✍ Scribed by Matti Oksama; Ilkka Suppala

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
591 KB
Volume
30
Category
Article
ISSN
0926-9851

No coin nor oath required. For personal study only.

✦ Synopsis

Two integral equations applicable to calculating electromagnetic anomalies caused by perfect conductor models are studied. First it is shown that Maue's magnetic field integral equation, originally presented for a whole space environment, is valid for conductors located in horizontally layered space. Structural information for the surrounding space is carried by Green's dyadic functions. Secondly, using the quasi-static approximation for a magnetic field in a free space, a simple static integral equation is derived, in which the scattered magnetic field is represented by fictitious magnetic surface charges distributed on the conductor.

The integral equations are solved numerically by the method of moments. Numerical solutions converge with an increasing number of cells. However, an accurate solution requires a large number of cells. The static integral equation is used for calculating airborne electromagnetic anomalies. The effect of thickness and dip angle of the thick plate is considered.

πŸ“œ SIMILAR VOLUMES

The scattering of electromagnetic waves
The scattering of electromagnetic waves by a perfectly conducting infinite cylinder
✍ David Colton; Peter Monk πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 602 KB

## Abstract We consider the scattering of a plane time‐harmonic electromagnetic wave by a perfectly conducting infinite cylinder with axis in the direction k, where k is the unit vector along the z axis. Suppose the incident wave propagates in a direction perpendicular to the cylinder. For a given

AN FFT-BASED FORMULATION FOR THE COMPUTA
AN FFT-BASED FORMULATION FOR THE COMPUTATION OF ELECTROMAGNETIC SCATTERING FROM 3-D, PERFECTLY CONDUCTING BODIES
✍ T. V. TRAN; A. McCOWEN πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 831 KB

An FFT-based formulation for the computation of electromagnetic scattering from 3-D, perfectly conducting objects is presented. The formulation solves the EFIE iteratively via a conjugate gradient scheme and has the major advantage of a low storage requirement for scatterers in the resonance region.