Oscillator/mixer circuit having reduced area requirement...

Details Oscillator/mixer circuit having reduced area requirement... Oscillator/mixer circuit having reduced area requirement...

2005-05-03

2005-05-03

Kinkead, Arnold (Department: 2817)

Oscillators

Combined with particular output coupling network

C331S10800D, C331S046000, C455S313000, C455S323000

Reexamination Certificate

active

06888416

ABSTRACT:
An oscillator/mixer circuit having a reduced area requirement when producing it on a chip and where the circuit's mixer circuit is not based on the use of the nonlinear characteristic curve of an active component. The preferred embodiment of the oscillator/mixer circuit comprises an oscillator circuit; a mixer circuit, wherein the oscillator and mixer circuits have the same components to some extent and wherein the mixer circuit has at least a first switch element and a second switch element. An output of the first switch element is coupled to a control input of the second switch element via a first feedback element. An output of the second switch element is coupled to a control input of the first switch element via a second feedback element. The feedback elements are set up allow oscillator operation of the oscillator/mixer circuit.

REFERENCES:
patent: 4268916 (1981-05-01), Kusakabe
patent: 5166645 (1992-11-01), Watts
patent: 5418500 (1995-05-01), Igarashi
patent: 2523724 (1975-12-01), None
patent: 3124492 (1983-01-01), None

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