Oscillator and method for generating an oscillator signal

Details Oscillator and method for generating an oscillator signal Oscillator and method for generating an oscillator signal

2006-06-26

2008-09-09

Kinkead, Arnold (Department: 2817)

Oscillators

Solid state active element oscillator

Transistors

C331S1170FE, C331S179000, C331S167000

Reexamination Certificate

active

07423495

ABSTRACT:
An oscillator includes a first resonator circuit, a second resonator circuit coupled to the first resonator circuit and a reconfigurable network having a transconductance and coupled to at least one of the resonator circuits. Reconfiguration of the reconfigurable network with respect to the transconductance allows selection of one of multiple oscillation modes of the oscillator.

REFERENCES:
patent: 6621365 (2003-09-01), Hallivuori et al.
patent: 7075380 (2006-07-01), Singh et al.
“A 1.8-GHz LC VCO With 1.3-GHz Tuning Range and Digital Amplitude Calibration”, Axel D. Berny, Ali M. Niknejad and Robert G. Meyer, IEEE Journal of Solid-Stage Circuits, vol. 40, No. 40, Apr. 2005, pp. 909-917.
“Design of Wide-Band CMOS VCO for Multiband Wireless LAN Applications”, Neric H. W. Fong, Jean-Olivier Plouchart, Noah Zamdmer, Duixian Liu, Lawrence F. Wagner, Calvin Plett and N. Garry Tarr, IEEE Journal of Solid-State Circuits, vol. 38, No. 8, Aug. 2003, pp. 1333-1342.
“A CMOS Fully Integrated 1 GHz and 2 GHz Dual Band VCO with a Voltage Controlled Inductor”, Marc Tiebout, in Proceedings of the IEEE European Solid-State Circuits Conference, 2002, pp. 799-802.
“Demonstration of a Switched Resonator Concept in a Dual-Band Monolithic CMOS LC-Tuned VCO”, Seong-Mo Yim and Kenneth K. O, in Proceedings of Custom Integrated Circuits Conference, 2001, 4 pgs.
“A Low-Noise Transformer-Based 1.7GHz CMOS VCO”, Matt Straayer, Jose Cabanillas and Gabriel M. Rebeiz, IEEE ISSCC Digest of Technical Papers, San Francisco, CA, Feb. 2002, 8 pgs.
“80GHz CMOS Quadrature VCO Using Transformer-Based LC Tank”, Donghyun Baek, Taeksang Song, Euisik Yoon and Songscheol Hong, IEEE Nicrowave and Wireless Component s Letters, vol. 13, No. 10, Oct. 2003, 3 pgs.

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