TY - JOUR
T1 - System-Level EMI of an Artificial Router System with Multiple Radiators: Prediction and Validation
AU - Zhang, Wei
AU - Meiguni, Javad Soleiman
AU - Ghosh, Kaustav
AU - Patnaik, Abhishek
AU - Sorensen, Morten
AU - Hosseinbeig, Ahmad
AU - Pommerenke, David
AU - Rollin, Jacques
AU - Li, Jing
AU - Quian, Liu
AU - Sochoux, Philippe
AU - Kim, DongHyun
PY - 2020/8
Y1 - 2020/8
N2 - In a multimodule system, an increase in the number of radiating optical modules will increase the electromagnetic emissions. This article investigates the scaled tendency of the emissions in a router system loaded with hundreds of optical modules. An artificial router mimicking the real system was built to investigate this tendency. A patch antenna array mimics the radiation of the optical modules. It can be excited in in-phase and random-phase configurations. The measurement data verifies the theoretical analysis and the prediction from a statistical method without performing hundreds of different experiments on a real router. Assuming that all radiators are radiating at the same frequency and have similar radiation pattern with random phases, the average of the maximal directivity of the system will saturate if the number of radiators (N) is larger than 14. Furthermore, the average of the maximal electric field radiated will increase following a 10 log10N (dB) tendency
AB - In a multimodule system, an increase in the number of radiating optical modules will increase the electromagnetic emissions. This article investigates the scaled tendency of the emissions in a router system loaded with hundreds of optical modules. An artificial router mimicking the real system was built to investigate this tendency. A patch antenna array mimics the radiation of the optical modules. It can be excited in in-phase and random-phase configurations. The measurement data verifies the theoretical analysis and the prediction from a statistical method without performing hundreds of different experiments on a real router. Assuming that all radiators are radiating at the same frequency and have similar radiation pattern with random phases, the average of the maximal directivity of the system will saturate if the number of radiators (N) is larger than 14. Furthermore, the average of the maximal electric field radiated will increase following a 10 log10N (dB) tendency
KW - Artificial system
KW - averaged maximal directivity (< D-max >)
KW - averaged maximal electric field (< E-max >)
KW - electromagnetic interference (EMI)
KW - maximal directivity (D-max)
KW - maximal electric field (E-max)
KW - optical modules
KW - router system
KW - scaling
KW - total radiated power (TRP)
KW - maximal directivity (D )
KW - averaged maximal electric field (E )
KW - averaged maximal directivity (D )
KW - maximal electric field (E )
UR - http://www.scopus.com/inward/record.url?scp=85095132839&partnerID=8YFLogxK
U2 - 10.1109/TEMC.2020.3006517
DO - 10.1109/TEMC.2020.3006517
M3 - Article
SN - 0018-9375
VL - 62
SP - 1601
EP - 1610
JO - IEEE Transactions on Electromagnetic Compatibility
JF - IEEE Transactions on Electromagnetic Compatibility
IS - 4
M1 - 9141377
ER -