Injection-locked frequency divider and frequency dividing...

Details Injection-locked frequency divider and frequency dividing... Injection-locked frequency divider and frequency dividing...

2006-11-21

2006-11-21

Kinkead, Arnold (Department: 2817)

Oscillators

Combined with particular output coupling network

C331S185000, C331S057000, C377S047000

Reexamination Certificate

active

07138879

ABSTRACT:
An injection-locked frequency divider includes a selecting module for generating a control signal; a biasing module coupled to the selecting module, for receiving an original signal and generating a biasing signal according to the control signal; and an oscillating module coupled to the biasing module, for receiving the biasing signal to generate a target signal. A ratio exists between the frequency of the target signal and the frequency of the original signal.

REFERENCES:
patent: 4953010 (1990-08-01), Cowley
patent: 6781471 (2004-08-01), Huang
patent: 2003/0025566 (2003-02-01), Rogers
Hamid R. et al., Superharmonic Injection-Locked Frequency Dividers, IEEE Journal of Solid-State Circuits, vol. 34, No. 6, Jun. 1999.
Herber Knapp et al., 2-GHz/2-mW and GHz/30-mW Dual-Modulus Prescalers in Silicon Bipolar Technology, IEEE Journal of Solid-State Circuits, vol. 36, No. 9, Sep. 2001.
Rafael J. Betancourt-Zamora, CMOS Injection-locked Ring Oscillator Frequency Dividers, Stanford Microwave integrated Circuits Laboratory, Mar. 29, 2001, pp. 1-40.
Wu, et al., A 19GHz 1.5mW 0.35um CMOS Frequency Divider with Shunt-Peaking Locking-Range Enhancement, IEEE Solid-State Circuits, Conference 2001.

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