Table 2 Regression coefficients of the cubic order models to predict the dielectric loss factor of RB as a function of MC (10–25% w.b.) and temperature (25–100 °C).
Regression coefficients in Eq. (3) | Regression coefficients at five selected frequencies | ||||
|---|---|---|---|---|---|
13.56 MHz | 27.12 MHz | 40.68 MHz | 915 MHz | 2450 MHz | |
α 0 | −347.50 | −161.92 | −113.67 | −8.88 | −3.51 |
α 1 | 53.44 | 25.82 | 18.49 | 1.78* | 0.75* |
α 2 | 7.02*1 | 2.99* | 1.99* | 0.04* | 5.35 × 10−3* |
α 12 | −0.64* | −0.29* | −0.20* | −8.05 × 10−3* | −1.92 × 10−3* |
α 11 | −2.64* | −1.31* | −0.95* | −0.10* | –0.05* |
α 22 | −0.07* | −0.03* | −0.02* | −2.02 × 10−4* | 7.20 × 10−5* |
α 112 | 0.01* | 5.77 × 10−3* | 4.05 × 10−3* | 2.24 × 10−4* | 6.63 × 10−5 |
α 122 | 3.40 × 10−3* | 1.52 × 10−3* | 1.05 × 10−3* | 4.25 × 10−5 | 1.71 × 10−5 |
α 111 | 0.04 | 0.02 | 0.02 | 1.95 × 10−3 | 9.47 × 10−4 |
α 222 | 2.00 × 10−4 | 8.33 × 10−5 | 5.49 × 10−5 | 8.92 × 10−8 | −5.83 × 10−7 |
Model | * | * | * | * | * |
R 2 | 0.998 | 0.995 | 0.998 | 0.996 | 0.996 |
