Dielectric Properties of Switchgrass and Corn Stover in the Radio Frequency Range

Highlights Dielectric permittivities of switchgrass and corn stover in the radio frequency range were calculated. Prediction models achieved R 2 > 0.9, except for loss factor material motion. The factors different when static motion, but dielectric constants similar. Abstract . properties biological materials are relevant developing moisture content sensors. However, little is known about a wider range. goal this research was to determine their at contents across 5 Hz 13 MHz with motion inside sample container. permittivity these calculated by measuring admittance test fixture using an impedance analyzer three levels (9.0% 30.5%). Overall, materials’ increased decreased frequency. developed data 10 kHz MHz. Model coefficients determination higher than 0.90 general, model Additionally, constant not or values distinct. This work can be used development electrical sensors stover. Keywords: Corn stover, constant, Loss factor, Moisture content, Permittivity, Switchgrass.