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How can the Q factor of an inductor coil be improved? 


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The Q factor of an inductor coil can be improved through various methods. One approach is to optimize the geometry of the coil, such as using a near-circular to sickle-shaped cross-section and non-uniform metal width and spacing . Another method involves using a negative resistance generator coupled to the inductor and a bias circuit for enhancing the Q factor . Additionally, applying magnetic plating to the surfaces of the coil conductors can increase the inductance value and improve the Q factor . Furthermore, plating a magnetic thin film of nickel-iron alloy on the surface of copper wires can also enhance the Q factor, with the composition and thickness of the thin magnetic layer playing a significant role .

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The Q factor of an inductor coil can be improved by plating a magnetic thin film of nickel-iron alloy on the surface of copper wires.
The Q factor of an inductor coil can be improved by applying magnetic plating to the surfaces of the conductors.
The Q factor of an inductor coil can be improved by using a layout with non-uniform metal width and spacing, as well as a patterned ground shield.
Open accessJournal ArticleDOI
Andrey Rikhter, Michael M. Fogler 
2 Citations
The Q factor of an inductor coil can be improved by optimizing its geometry, with the cross-section evolving from near-circular to sickle-shaped as frequency increases.
Patent
Ying-Yao Lin, Ying-Hsi Lin 
07 Aug 2006
4 Citations
The Q factor of an inductor coil can be improved by using a negative resistance generator and a bias circuit.

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