CPC H01F 21/04 (2013.01) [H01F 27/24 (2013.01); H01F 27/28 (2013.01); H03H 7/0115 (2013.01); H03H 2210/026 (2013.01)] | 20 Claims |
1. A tunable trap filter inductor comprising:
an adjustable inductor including:
a toroidal core defining a plurality of gaps;
a material positioned in the gaps;
at least one winding wound on the core;
a force-applying structure operable to apply a force to the core to adjust the gaps and thereby an inductance of the adjustable inductor; and
wherein the adjustable inductor further includes a film substantially covering the adjustable inductor.
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