Self resonant frequency of inductors in a LNA DC bias tee
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Carbon_Rod
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Mon Sept 25 2017, 07:19AM
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Registered Member #65
Joined: Thu Feb 09 2006, 06:43AM
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Posts: 1155
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Given under DC bias the rated self resonant frequency of chip inductors in a bias tee is somewhat lower.
Is it acceptable practice to still estimate lumped element parallel inductors using the standard model?
Edit: short answer is No. Depending on the physical proximity, "mutual inductance that exists between two [unshielded] chokes ... may actually reduce the effective coupling" (How to Select R.F. Chokes, May 1966, Electronics World, )
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