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Off Topic: is there such a thing as an integrated circut chip as variable inductor?

Question asked by john doe on Dec 12, 2017
Latest reply on Dec 15, 2017 by AvaTar

I'm trying to learn antenna matching and I'm as much a "do the math" guy as I am "hack it out through trial and error" kind of person.  Usually it's both, when I'm not getting it.  And I'm not getting tank circuits right and I dont have a large set of inductors to play with.  Is there a chip that is a variable inductor with a digital interface?  I should have just built the oatmeal container radio and moved on to motor controls.