Test method for coupling attenuation of screened twisted pair cable based on mixed mode S parameters
Coupling attenuation is used to describe the EMC performance of screened twisted pair cables. Coupling attenuation of a screened twisted pair cable can be measured with absorbing clamp method. The measurement result is affected by the performance of the balanced to unbalanced transformer (balun) It is not easy for a balun to meet the requirement specified in IEC 62153 4 5 within the frequency range from 30MHz to 1GHz. Mixed mode S parameters method is proposed in this paper. Its feasibility is analyzed and verified by experiment.
2016 Asia Pacific International Symposium on Electromagnetic Compatibility (APEMC)