On a well-conditioned impedance boundary condition EFIE
| Autor: | Francesco P. Andriulli, Alexandre Dely, Kristof Cools |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Radiation
Computer Networks and Communications Operator (physics) Multiplicative function Mathematical analysis Spectrum (functional analysis) 020206 networking & telecommunications 02 engineering and technology Low frequency Electric-field integral equation Mathematics::Numerical Analysis symbols.namesake Helmholtz free energy Bounded function 0202 electrical engineering electronic engineering information engineering symbols Polygon mesh Instrumentation Mathematics |
| Zdroj: | 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. |
| DOI: | 10.1109/apusncursinrsm.2017.8072400 |
| Popis: | We present a new formulation for the Impedance Boundary Condition — Electric Field Integral Equation (IBC-EFIE) which requires a number of iterations to be solved that is bounded at low frequency and with dense meshes. We use a multiplicative preconditionner based on quasi-Helmholtz projectors to rescale in frequency the two Helmholtz components of the equation and make the formulation stable at low frequency. A Calderon type preconditionning regularizes the unbounded branch of the spectrum of the IBC-EFIE operator to solve the dense mesh breakdown. |
| Databáze: | OpenAIRE |
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