Open AccessEquivalent modeling method of printed circuit board interference source based on magnetic dipole array
Author(s) -
Cao Zhong,
Pengfei Du,
Nie Bao-Lin,
Deqing Ren,
Zhang Qi-Dao
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.124102
Subject(s) - printed circuit board , equivalent circuit , electromagnetic interference , electromagnetic compatibility , dipole antenna , dipole , radiation , magnetic dipole , interference (communication) , antenna (radio) , computer science , boundary value problem , physics , radiation pattern , acoustics , computational physics , electronic engineering , optics , telecommunications , voltage , engineering , operating system , channel (broadcasting) , quantum mechanics
In view of the need of the electromagnetic compatibility analysis in the design process of the electronic equipment, an equivalent method of modeling the characteristics of electromagnetic radiation from printed circuit board interference source is proposed by using magnetic dipole array. According to the characteristics of the electromagnetic boundary value problems, the radiating source and the structures affecting the radiation are modeled separately. At first, the actual source is modeled in detail. Then the effect of surrounding structures on the overall radiation is incorporated into the model. Moreover, the basic ideas of equivalent modeling are introduced, and the derivation of the formulas to obtain the magnetic dipole array is given. Finally, a patch antenna is used to demonstrate the validity of the method. The results show that the equivalent modeling method significantly reduces the complexity of the model, the modeling time, and the computational burden.