| 20080211592 | Drive Circuit for a Voltage Controlled Differential Oscillator - A drive circuit for a voltage controlled differential oscillator using a negative resistance circuit for driving the resonator circuit of the voltage controlled differential oscillator. Opposite sides of the resonator circuit are connected to the negative resistance circuit with respective coupling capacitors so as to provide DC isolation between the resonator circuit and the negative resistance circuit. The negative resistance circuit includes an amplifier having a gain greater than unity so as to compensate for degradation in negative resistance resulting from the coupling capacitors. | 09-04-2008 |
