BS EN 62810:2015
$142.49
Cylindrical cavity method to measure the complex permittivity of low-loss dielectric rods
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 24 |
IEC 62810:2015 relates to a measurement method for complex permittivity of a dielectric rod at microwave frequency. This method has been developed to evaluate the dielectric properties of low-loss materials in coaxial cables and electronic devices used in microwave systems. It uses the TM010 mode in a circular cylindrical cavity and presents accurate measurement results of a dielectric rod sample, where the effect of sample insertion holes is taken into account accurately on the basis of the rigorous electromagnetic analysis.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | CONTENTS |
| 6 | FOREWORD |
| 8 | 1 Scope 2 Normative references 3 Measurement parameters 4 Theory and calculation equations |
| 9 | Figures Figure 1 – Structure of a cylindrical cavity resonator |
| 10 | Figure 2 – Correction factor C1 for ε |
| 11 | Tables Table 1 – Numerical values of correction factor C1 |
| 12 | Figure 3 – Correction factor C2 for tand with the different values of d1 |
| 13 | Table 2 – Numerical values of correction factor C2 |
| 14 | Table 3 – Numerical values of correction factor C2 |
| 15 | 5 Measurement system |
| 16 | Figure 4 – Schematic diagram of measurement systems |
| 17 | 6 Measurement procedure 6.1 Preparation of measurement apparatus 6.2 Measurement of reference level 6.3 Measurement of cavity parameters: σ r Figure 5 – Resonance frequency f0, insertion attenuation IA0 and half-power band width fBW |
| 18 | 6.4 Measurement of complex permittivity of test sample: ε ‘, tan d Figure 6 – Frequency responses of the TM010 mode of cylindrical cavity |
| 19 | Annex A (informative) Example of measurement results and accuracy A.1 Measurement of ε ‘ and tand values Table A.1 – The parameters of the cavity and the rod sample Table A.2 – The resonant frequencies and unloaded Q-factors Table A.3 – The approximate values and the relative conductivity value Table A.4 – Correction factors and the measurement results |
| 20 | A.2 Measurement uncertainty of ε ‘ and tand Table A.5 – The measurement uncertainty of ε ’ |
| 21 | Table A.6 – The measurement uncertainty of tan d |
| 22 | Bibliography |
