Patent ID: 7902585

Claim:
An integrated variable voltage diode capacitor topology applied to a circuit providing a variable voltage load for controlling variable capacitance, the topology comprising: a first pair of anti-series varactor diodes ( 10 , 12 , 14 , 16 ), wherein the diode power-law exponent n for said first pair of anti-series varactor diodes in the circuit is equal or greater than 0.5, and said first pair of anti-series varactor diodes have an unequal size ratio that is set to control third-order distortion; and a center tap between said first pair anti-series varactor diodes for application of the variable voltage load; where the diode power law exponent n is defined by: C ⁡ ( V ) = K ( ϕ + V ) n where; φ is the built-in potential of the diode, V is the applied voltage, n is the power law exponent of the diode capacitance, and K is the capacitance constant.