METHOD AND APPARATUS TO FACILITATE THE PROVISION AND USE OF A PLURALITY OF VARACTORS WITH A PLURALITY OF SWITCHES

摘要

A plurality of varactors are coupled (102) via a first electrode to a shared terminal that in turn can operably couple (103) to a source of control voltage. A second electrode for each varactor couples (107) to a corresponding switch, where each switch couples to at least two different voltage levels. So configured, the second electrode of each varactor can be individually connected to either of two voltage levels. This can be leveraged to control, in coarse steps, the overall aggregate effective capacitance presented by these components. At least some of these varactors can have differing corresponding capacitances, the specific values of which can be selected in order to facilitate relatively equal spacing and substantially equal rates of reactance change versus the control voltage value between aggregate-capacitive reactance ranges as correspond to differing settings for the switches at various levels for the control voltage source.