Colpitts quadrature voltage controlled oscillator

Details Colpitts quadrature voltage controlled oscillator Colpitts quadrature voltage controlled oscillator

2011-03-08

2011-03-08

Kinkead, Arnold (Department: 2817)

Oscillators

Plural oscillators

C331S002000, C331S045000, C331S050000, C331S1170FE, C331S1170FE, C331S135000, C331S167000

Reexamination Certificate

active

07902930

ABSTRACT:
Provided is a colpitts quadrature voltage controlled oscillator capable of obtaining quadrature orthogonal signals using a quadrature combination between a base and a collector of each transistor, without using an additional circuit such as a coupled transistor, a coupled transformer, a multiphase RC filter, etc. Accordingly, since nonlinearity, increased phase noise, a decrease in the Q-factor of an LC resonator, and increased power consumption can be avoided, a colpitts quadrature voltage controlled oscillator that has low phase noise, low electric power consumption, and a compact size can be implemented.

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