| CPC H01G 7/04 (2013.01) [H01G 4/38 (2013.01)] | 20 Claims |
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1. A capacitive device, comprising:
a first capacitor having a first capacitance value, the first capacitor comprising a first conductor, a second conductor, and dielectric material between the first conductor and the second conductor;
a second capacitor having a second capacitance value, the second capacitor comprising a third conductor, a fourth conductor, and the dielectric material between the third conductor and the fourth conductor;
a tunable capacitive device configured to selectively adjust the first capacitance value of the first capacitor of the capacitive device to a first different capacitive value from the first capacitance value and the second capacitance value of the second capacitor of the capacitive device to a second different capacitive value, the tunable capacitive device comprising a first contact coupled to the first conductor and a second contact coupled to the second conductor, and further comprising a capacitive circuit, the capacitive circuit comprising a switching element comprising phase change material that changes to a lower resistance state when heated by a first energy pulse, and changes to a higher resistance state when heated by a second energy pulse that is different from the first energy pulse, the switching element being coupled to a third capacitor to couple the third capacitor to the capacitive circuit, and decouple the third capacitor from the capacitive circuit, based on whether the phase change material is in the lower resistance state or in the higher resistance state; and
a controllable energy transfer component that selectively transfers first heat to the phase change material via the first energy pulse to change the phase change material to the lower resistance state, and transfers second heat via the second energy pulse to the phase change material to change the phase change material to the lower resistance state.
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