Frequency divider using an injection-locking-range...

Oscillators – Combined with particular output coupling network

Reexamination Certificate

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C331S076000, C331S1170FE

Reexamination Certificate

active

07961058

ABSTRACT:
A locking range enhancement technique is described that steers away part of the DC current and reuses it to generate more injected AC current to the injection-locked resonator-based frequency dividers (ILFDs). The injection-enhanced ILFDs maintain the key features of ILFDs, which are high speed and low power consumption, without requiring any extra inductive component and thus extra chip area.

REFERENCES:
patent: 4608539 (1986-08-01), Lawton
patent: 4806872 (1989-02-01), Cowley
patent: 6748204 (2004-06-01), Razavi et al.
patent: 6867656 (2005-03-01), Hajimiri et al.
patent: 7138879 (2006-11-01), Su
Chien et al., “40GHz wide-locking-range regenerative frequency divider and low-phase-noise balanced VCI in 0.18μm CMOS,”2007 IEEE International Solid-State Circuits Conference(ISSCC 2007), Session 30, Building Blocks for High-Speed Tranceivers, 30.4 (2007).
Lee et al., “A 40-GHz frequency divider in 0.18μm CMOS technology,”IEEE J. Sol. State Cir., 39: 4, 594-601 (Apr. 2004).
Mazzanti et al., “Analysis and design of injection-locked LC dividers for quadrature generation.”IEEE J. Sol. State Cir., 39: 9, 1425-1433 (Sep. 2004).
Rong et al., “A 1V 4GHz-and-10GHz transformer-based dual-band quadrature VCO in 0.18μm CMOS,”IEEE 2007 Custom Integrated Circuits Conference(CICC), 817-820 (2007).
Tiebout, A CMOS direct injection-locked oscillator topology as high-frequency low-power frequency divider,IEEE J. Sol. State Cir., 39: 7, 1170-1174 (Jul. 2004).
Wu et al., “A 19GHz 0.5mW 0.35μm CMOS frequency divider with shunt-peaking locking-range enhancement,”2001 IEEE International Solid-State Circuits Conference(ISSCC 2001), Session 26, Wireless Building Blocks II, 26,3 (2001).

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