Method of modeling electrostrictive effects and acoustic resonances in a tunable capacitor

1. A method of modeling electrostrictive effects and acoustic resonances in a tunable capacitor, comprising:

dividing a BST layer of said tunable capacitor into thin layers or slices with each slice's thickness representing a small fraction of an acoustic wavelength;

injecting at each junction between said slices, an acoustic current proportional to an electrical current through said tunable capacitor;

adjusting empirically characteristic impedances and complex propagation constants to account for actual process variations in manufacturing of said tunable capacitor;

adjusting empirically said characteristic impedances and complex propagation constants to account for end-effects in directions transversal to a wave direction; and

wherein a real part of a vector sum of acoustic voltages at all slice junctions, divided by an electrical current vector is taken to be representative of a part of the voltage tunable capacitor's effective series resistance contributed by an electrostrictive effect and acoustic resonances.

2. The method of claim 1 , wherein said electrostrictive effect is a transducer mechanism that links electrical and acoustic domains.