Predicting Radiation of CISPR 25 Complaint ALSE Environment


  • Jin Jia Chongqing University of Technology, Vehicle Engineering Institute, Chongqing, 401135, China
  • Zhida Lai State Key Laboratory of Vehicle NVH and Safety Technology, Chongqing, 401122, China
  • Ruimiao Wang State Grid Research Institute of Chongqing Electric Power Company, Chongqing 401123, China
  • Xu Li Chang’an Automotive Engineering Institute, Chongqing 401120, China


ALSE method, cable bundle, CISPR 25, Common-Mode current, Common-Mode voltage, radiated emission


According to the ALSE configuration in CISPR 25, cable bundle is often the dominant radiation structure due to the Common-Mode (CM) current. However this emission test method suffers from a need of a large anechoic chamber. In order to reduce this cost of electronic component development in the EMC test phase, this paper presents a CM current-scan to predict the radiated emissions from 30MHz - 1GHz; moreover, CM-voltage measurement on the cable bundle is also proposed from 150 kHz - 30 MHz. Both methods rely on simple radiating structures and do not take into account the complexity of a real ALSE environment. Therefore a calibration approach based on measured data is proposed to incorporate real influence factors in an anechoic shielded chamber. The proposed approaches are verified by different cable bundles and measurements. Index Terms – ALSE method, cable bundle, CISPR


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How to Cite

Jin Jia, Zhida Lai, Ruimiao Wang, & Xu Li. (2019). Predicting Radiation of CISPR 25 Complaint ALSE Environment. The Applied Computational Electromagnetics Society Journal (ACES), 34(08), 1226–1233. Retrieved from