ApplicationNo. 925158 filed on 08/06/1992
US Classes:331/56, Parallel connected331/60, SINGLE OSCILLATOR WITH PLURAL OUTPUT CIRCUITS331/76, Harmonic producing or selecting network331/100, Push-pull type331/114, Push-pull331/117DDistributed parameter resonator transistor oscillators
ExaminersPrimary: Grimm, Siegfried H.
Attorney, Agent or Firm
Foreign Patent References
International ClassH03B 005/18
Foreign Application Priority Data1991-08-12 JP
AbstractA push-push oscillator including a resonator having a transmission line and a capacitance connected to the transmission line in parallel; an oscillating circuit responsive to the resonator for oscillating and for producing first and second outputs having an antiphase relation therebetween; an in-phase combining circuit for summing the first and second outputs of said oscillating circuit to produce a summed signal; and an antiphase combining circuit responsive to two components from the resonator having an antiphase relation for producing a differential signal in accordance with a difference between the two components. Alternatively, the in-phase combining circuit is connected to the resonator and the antiphase combining circuit is connected to the oscillating circuit. The antiphase combining circuit outputs a fundamental wave component of the resonator. The in-phase combining circuit outputs a second harmonic wave component. When this push-push oscillator is used in a PLL circuit to form a frequency synthesizer, a high frequency output is obtained with a low power consumption.
Field of SearchParallel connected
WITH DISTRIBUTED PARAMETER RESONATOR
Parallel wire type
Distributed parameter resonator transistor oscillators
SINGLE OSCILLATOR WITH PLURAL OUTPUT CIRCUITS
COMBINED WITH PARTICULAR OUTPUT COUPLING NETWORK
Harmonic producing or selecting network