Title :
Optimal equiripple solution to the Jaumann absorber problem
Author :
du Toit, L.J. ; Cloete, J.H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa
Abstract :
The general Chebyshev approximation method is used to find the optimal solution to the Jaumman absorber problem. The Chebyshev-like (CL) solution with all reflection zeros at real frequencies is used as a starting point in the iteration. The optimal solution, with the reflection zeros moved slightly off the imaginary S-axis, is in the immediate vicinity of the CL-solution, and convergence properties are good.<>
Keywords :
Chebyshev approximation; convergence of numerical methods; electromagnetic wave absorption; iterative methods; optimisation; transmission line theory; Jaumann absorber problem; commensurate transmission line modelling; convergence properties; general Chebyshev approximation method; iteration; optimal equiripple solution; reflection zeros; Bandwidth; Chebyshev approximation; Dielectric losses; Equations; Frequency; Impedance; Polynomials; Power transmission lines; Reflection; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221840
