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Cavity Resonator for Dielectrics Powders

Powders

Dielectric testing of powders in thin capillaries with high accuracy and repeatability.

  • Frequencies:
 10 & 23 GHz
  • Dielectric constant:
 Dk = 1–100 (achievable accuracy: δDk < 0.5%)
  • Loss tangent:
 Df > 10e−4 (achievable accuracy: δDf < 2%)
  • Temperature:
 room
  • Intrinsic grain parameters are determined using mixing rules Link
  • Software-controlled measurement.
Dielectric constant of polyethylene and polystyrene as a function of frequency
Loss tangent of polyethylene and polystyrene as a function of frequency
Fig. 1. Frequency dependence of the dielectric constant (left) and loss tangent (right) of polyethylene and polystyrene measured at approximately 10 and 21 GHz. Error bars indicate measurement variability.

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Material Measurement Procedure

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