On-chip tunable artificial tank circuit

Details On-chip tunable artificial tank circuit On-chip tunable artificial tank circuit

2005-12-13

2009-06-02

Kinkead, Arnold (Department: 2817)

Oscillators

Ring oscillators

C330S302000, C333S213000

Reexamination Certificate

active

07541882

ABSTRACT:
Disclosed is a tuned circuit tuned to an input signal having a predetermined radio frequency, the tuned circuit comprising a tank circuit having a loaded ring oscillator circuit with a resonant frequency corresponding to said radio frequency. The tank circuit is configured for a predetermined frequency that the tuned circuit is designed for. In the case wherein the tuned circuit is in CMOS 0.18 μm technology, the tuned circuit is configured for a frequency of up to 7 GHz. The tank circuit may be in the form of an integrated circuit having a size of not more than 200 μm by 200 μm. The tank circuit may form part of a low-noise amplifier or part of a mixer.

REFERENCES:
patent: 4072910 (1978-02-01), Dingwall et al.
patent: 7271676 (2007-09-01), Kim

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