22 | Keysight | E4991B Impedance Analyzer - Data Sheet
Option E4991B-002 Material Measurement (Typical)
(continued)
Figure 16. Dielectric loss tangent (tand) accuracy vs. frequency
(at t = 0.3 mm, typical)1
Fiigguurree1198. .PPeermrmittitivtiivtyit(y['(ε) v's). fvrse.qfureenqcuye(nactyt =(a0t.3t m=m0.,3tympimca,l)typical)
r
r
Figure 17. Dielectric loss tangent (tand) accuracy vs. frequency
(at t = 1 mm, typical)1
Figure 20. Permittivity ([’ ) vs. frequency (at t = 1 mm, typical)
r
Figure 18. Dielectric loss tangent (tand) accuracy vs. frequency
(at t = 3 mm, typical)1
Figure 21. Permittivity ([’ ) vs. frequency (at t = 3 mm, typical)
r
1. This graph shows only frequency dependence of Ea to simplify it. The
typical accuracy of tand is defined as Ea + Eb; refer to “Typical accuracy of
permittivity parameters” on page 15.