The Procedure of Half-Wave Number Measurement at Resonant Frequencies

Waveguides methods of dielectric permeability measurement are widely used for their simplicity. Typical measurement cell in these methods is waveguide segment with flat dielectric layer (specimen). If dielectric without loss, VSWR (voltage standing wave ratio) frequency response for this cell has periodic, low damping character. Frequencies of VSWR minimum are resonant frequencies and frequencies of VSWR maximum are antiresonant frequencies. It gives possibility to produce method of dielectric permeability measurement, which uses means resonant or antiresonant frequencies only.