Title :
Cramér–Rao Bounds for Determination of Permittivity and Permeability in Slabs
Author :
Sjöberg, Daniel ; Larsson, Christer
Author_Institution :
Dept. of Electr. & Inf. Technol., Lund Univ., Lund, Sweden
Abstract :
We compute the Cramér-Rao lower bounds for determination of isotropic permittivity and permeability in slabs using reflection and transmission data. The results apply to three common measurement situations: free space, rectangular waveguides, and coaxial waveguides. The bounds depend only on the available data and not on the actual inversion method used, making them suitable to evaluate a particular experimental setup. The results are illustrated with several measurements in a rectangular waveguide setting.
Keywords :
coaxial waveguides; electromagnetic wave reflection; electromagnetic wave transmission; magnetic permeability; permittivity; rectangular waveguides; slabs; Cramér-Rao bounds; coaxial waveguides; free space; isotropic permittivity; measurement situation; permeability; rectangular waveguides; reflection data; slabs; transmission data; Cramer-Rao bounds; Permeability; Permittivity; Reflection; Resonant frequency; Slabs; Electromagnetic properties; material characterization; reflection; transmission;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2011.2166085
