Patent ID: 9281802
Filing Date: 2016-03-08
CPC Classification: H03J

Claim Text:
1. A switchable capacitance circuit comprising: a plurality of capacitance-switch cells coupled to a common terminal, wherein each capacitance-switch cell comprises: wherein a resistance of the first semiconductor switching circuit of a first capacitance-switch cell of the plurality of capacitance-switch cells is substantially equal to a resistance of the first semiconductor switching circuit of a second capacitance-switch cell of the plurality of capacitance-switch cells, and a capacitance of the capacitance circuit of the first capacitance-switch cell is substantially equal to a capacitance of the capacitance circuit of the second capacitance-switch cell, and wherein each of the plurality of capacitance-switch cells are matched cells having a same geometry, wherein a Q factor of the switchable capacitance circuit is substantially monotonic as a load capacitance is increased and decreased by switching in and out ones of the plurality of capacitance-switch cells.