Programmable varactor for VCO gain compensation and phase...

Details Programmable varactor for VCO gain compensation and phase... Programmable varactor for VCO gain compensation and phase...

2007-08-08

2009-11-03

Mis, David (Department: 2817)

Oscillators

With frequency adjusting means

Step-frequency change

C331S1170FE, C331S17700V

Reexamination Certificate

active

07612626

ABSTRACT:
A programmable varactor apparatus may include multiple binary weighted varactors controlled by multiple digital varactor bits. A programmable varactor apparatus may include a plurality of binary weighted varactors, and a control to selectively disable one or more of the plurality of binary weighted varactors to decrease an effective capacitance of the programmable varactor apparatus. A method for changing an effective capacitance of a programmable varactor apparatus may include providing a plurality of binary weighted varactors, and disabling one or more of the plurality of binary weighted varactors to decrease the effective capacitance of the programmable varactor apparatus.

REFERENCES:
patent: 5739730 (1998-04-01), Rotzoll
patent: 6211745 (2001-04-01), Mucke et al.
patent: 6445257 (2002-09-01), Cox et al.
patent: 6825785 (2004-11-01), Huang et al.
patent: 2005/0184812 (2005-08-01), Cho
patent: 2005/0258906 (2005-11-01), Su et al.
patent: 2006/0208806 (2006-09-01), Chien
patent: 2006/0267693 (2006-11-01), Buell
Broussev et al., “A Wideband Low Phase-Noise LC-VCO With Programmable KVCO”, IEEE, Microwave and Wireless Components Letters, Apr. 2007, vol. 17, Issue 4, pp. 274-276.
Hauspie et al., “Wideband VCO with Simultaneous Switching of Frequency Band, Active Core and Varactor Size”, IEEE, Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European, pp. 452-455.
International Search Report—PCT/US07/087320, International Search Authority—European Patent Office—Apr. 28, 2008.
Written Opinion—PCT/US07/087320, International Search Authority—European Patent Office—Apr. 28, 2008.

Affiliated with

Also associated with

Rating

Programmable varactor for VCO gain compensation and phase... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Programmable varactor for VCO gain compensation and phase..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable varactor for VCO gain compensation and phase... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4137395