MEASUREMENT OF DIELECTRIC AND MAGNETIC PROPERTIES 431 



+1 



-4 



0.10 —7 



0.05 



O 



Z 



I 



0.2 0.4 0.6 0.8 1.0 1.2 



NORMALIZED STATIC MAGNETIC FIELD, (7 = 



14 



1.6 



1.8 



Fig. 1 — Theoretical values of Xm ± k and loss tangent 5± versus normalized 

 static field a. 



of a degenerate rectangular cavity.* In principle, all these methods per- 

 mit the determination of the six parameters Xe', x/j x™', Xm , «', and k" . 

 However, in practical applications there are significant differences, e.g., 



* As this paper was being written another variation of the thin cylinder tech- 

 nique using the TMuo mode in a circular cavity was reported by Spencer and 

 LeCraw at the I.R.E. Convention, New York, Mar. 21, 1956. 



