Wednesday, July 26, 2017

Track inductance vs ground plane.

The prototype board data gives details which include the length of the tracks between components. For a short wave radio this might be overkill but for a FM receiver it could be worth looking into. One suggested use for the BF2040W was a FM receiver. An aircraft band receiver could be in the making too. Does the foil length effect the amplifier operation? Remember a straight wire will have inductance and at high frequencies the inductance will effect the circuit response.  Now consider this:
If positive feedback creates regeneration which creates oscillations maybe we should be aware of the foil inductance and the benefit of the ground plane?

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