High-Accuracy Wide-Range Measurement Method for Determination of Complex Permittivity in Reentrant Cavity: Part A --- Theoretical Analysis of the Method
“…In the frequency range 50 MHz-2 GHz a re-entrant cavity method can be employed [51,54,55] to evaluate the dielectric properties. Both TM 010 and re-entrant cavities are closed with a lid after insertion of the samples.…”
Section: Tm 0n0 Mode and Re-entrant Cavity Methodsmentioning
“…In the frequency range 50 MHz-2 GHz a re-entrant cavity method can be employed [51,54,55] to evaluate the dielectric properties. Both TM 010 and re-entrant cavities are closed with a lid after insertion of the samples.…”
Section: Tm 0n0 Mode and Re-entrant Cavity Methodsmentioning
“…The first is a lumped-circuit approximation [36,37]. The other approach is a rigorous modematching technique [38][39][40]. The full-field model is given in reference [38].…”
“…Therefore, dielectric properties were measured using a doubly reentrant cavity at lower frequencies. This method (16)(17)(18)(19)(20) permits the evaluation of permittivity and dielectric loss over a wide range of frequencies (100 MHz to 1 GHz) using relatively small, cylindrically shaped specimens. Accurate dielectric loss data can be obtained for low-to medium-loss materials (tan &10\ to 10\).…”
Section: Red-black Single Crystals Of Bamentioning
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