https://www.mathworks.com/help/sps/ref/variableinductor.html
Variable Inductor - Linear time-varying inductor - MATLAB
The Variable Inductor block represents a linear time-varying inductor.
variable inductorlinear timevaryingmatlab
https://www.mathworks.com/help/simrf/ref/variableinductor.html
Variable Inductor - Model variable inductor - Simulink
The Variable Inductor block controls the output of RF Blockset feedback circuits using Simulink controlled inductance in henries.
variable inductormodelsimulink