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Is resistance of planar inductor frequency dependent?

Equivalent series resistance

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Yes, the resistance of planar inductors is frequency dependent. The resistance of planar magnetic components varies greatly over their operating frequency range due to magnetic flux linkage within the wide flat conducting sections . The high-frequency effects on the series resistance of inductors have been confirmed through measured and simulated data . The model for planar inductors takes into account the ohmic losses due to conduction current and the magnetic induced losses due to Eddy currents, which are frequency dependent . An analytical model parameterized as a function of the inductor geometry is used to describe the electrical behavior of planar spiral inductors in the radio-frequency range .

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Proceedings Article•DOI Accurate Physical Model For Designing RF and Microwave Integrated Planar Inductors Javier Sieiro, Jose M. Lopez-Villegas, J. Cabanillas, Josep Samitier - Show less +3 more 01 Oct 2000 1 Citations	Yes, the resistance of the planar inductor is frequency dependent, taking into account both ohmic losses and magnetically induced losses.
Proceedings Article•DOI High frequency effects in planar magnetics: inclusive of skin effect Maeve Duffy, William Gerard Hurley - Show less +1 more 18 Jun 1995 11 Citations	Yes, the resistance of planar magnetic components varies greatly over their operating frequency range due to magnetic flux linkage within the conducting sections.
Journal Article•DOI Frequency-dependent series resistance of monolithic spiral inductors Min Park, Chung-Hwan Kim, Cheon Soo Kim, Mun-Yang Park, Sungdo Kim, Young-Sik Youn, Hyun Kyu Yu - Show less +6 more 01 Dec 1999-IEEE Microwave and Guided Wave Letters 43 Citations	Yes, the resistance of a planar inductor is frequency dependent, with the magnetic field effect being the dominant factor at high frequencies.
Journal Article•DOI The realization of a frequency independent inductor G. Ganguli 01 Jun 1975-International Journal of Electronics 1 Citations	No, the proposed configuration of the inductor yields a resistance that is frequency independent.

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