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BS IEC 62153-4-16:2016 Metallic communication cable test methods - Electromagnetic compatibility (EMC). Extension of the frequency range to higher frequencies for transfer impedance and to lower frequencies for screening attenuation measurements using the, 2016
- 30334761-VOR.pdf [Go to Page]
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Acronyms
- 4 Overview
- 5 Frequency behaviour of the triaxial set-up
- 6 Extrapolation of measurement results
- 7 Determination of the relative dielectric permittivity and impedance [Go to Page]
- 7.1 General
- 7.2 Influence of the test head
- Bibliography
- Figures [Go to Page]
- Figure 1 – Simulation of the scattering parameter S21 (left hand scale) and the transfer impedance (right hand scale) for a single braid screen
- Figure 2 – Magnitude of the frequency behaviour (F) in logarithmic frequency scale for a coupling length of 0,5 m, respectively 2 m and relative dielectric permittivity of 2,3 and 1,1 for the inner, respectively outer circuit
- Figure 3 – Magnitude of the frequency behaviour (F) in linear frequency scale for a coupling length of 0,5 m, respectively 2 m and relative dielectric permittivity of 2,3 and 1,1 for the inner, respectively outer circuit
- Figure 4 – Example for the extrapolation of the transfer impedance of a RG59 type cable measured with a coupling length of 2 m and assuming relative dielectric permittivity of 2,3 and 1,1 for the inner, respectively outer circuit
- Figure 5 – Example for the extrapolation of the scattering parameter S21 in logarithmic frequency scale of a RG59 type cable measured with a coupling length of 0,5 m and assuming dielectric permittivities of 2,3 and 1,1 for the inner, respectively outer circuit
- Figure 6 – Example for the extrapolation of the scattering parameter S21 in linear frequency scale of a RG59 type cable measured with a coupling length of 0,5 m and assuming dielectric permittivities of 2,3 and 1,1 for the inner, respectively outer circuit
- Figure 7 – Measurement of S11 of the outer circuit (tube) having a length of 50 cm
- Figure 8 – Example of test head (COMET set-up)
- Figure 9 – Example on how to obtain the electrical length of the test head from the S11 measurement using a bare copper wire as DUT (COMET set-up)
- Figure 10 – Example for an RG58 type cable in 2 m triaxial set-up (COMET) [Go to Page]
