Analytical Modeling of AC Resistance in Thick Coil Integrated Spiral Inductors

Analytical Modeling of AC Resistance in Thick Coil Integrated Spiral Inductors

In this paper, an analytical model for calculating the ac resistance due to the proximity effect in thick coil integrated spiral inductors is proposed. Based on 2-D Maxwell's equations, the redistribution of magnetic field and current in the coils caused by the proximity effect is modeled, and...

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Veröffentlicht in:IEEE transactions on electron devices 2016-02, Vol.63 (2), p.760-766
Hauptverfasser: Xiangming Fang, Rongxiang Wu, Sin, Johnny K. O.
Format: Artikel
Sprache:eng
Schlagworte:
Alternating current
Analytical models
Coiling
Inductors
Integrated inductor
Mathematical analysis
Mathematical model
Mathematical models
Maxwell equations
Maxwell's equation
Maxwell's equations
proximity effect
Proximity effect (electricity)
Proximity effects
quality factor
Resistance
Spirals
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Beschreibung
Zusammenfassung:In this paper, an analytical model for calculating the ac resistance due to the proximity effect in thick coil integrated spiral inductors is proposed. Based on 2-D Maxwell's equations, the redistribution of magnetic field and current in the coils caused by the proximity effect is modeled, and the ac resistance of the inductor is extracted. The analytical model is compared with both numerical simulations and experimental results. The ac resistance calculated by the model is good (within 14.8% discrepancy) up to the frequency of the peak quality factor for thick coil integrated spiral inductors.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2015.2507198