Does anyone know of a good set of design guides and equations for designing
a planer inductor?
The specifications I have are 22 uH (microHenry) with  4 ohm resistance
maximum O.D. of 2mm on FR-4.
I don't think this is possible but would like the math to prove it.

TIA,
Jeffrey A. McGlaughlin, C.I.D.
Sr. PCB Designer
Battelle Memorial Institute
Columbus Ohio
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