Oscillators – Solid state active element oscillator – Significant distributed parameter resonator
Reexamination Certificate
2007-05-15
2007-05-15
Kinkead, Arnold (Department: 2817)
Oscillators
Solid state active element oscillator
Significant distributed parameter resonator
C331S016000, C455S313000, C455S344000
Reexamination Certificate
active
11025598
ABSTRACT:
An amplitude-locked loop (ALL) includes: a comparator circuit having a first input, a second input and an output, said first input receiving an electric reference signal; a loop filter having an input connected to said output of said comparator circuit and having an output generating an electric control signal (Vtune); a circuit generating an electric signal to be controlled, transmitted to said second input of said comparator circuit. The circuit comprises an acoustic resonator having a BAW-type resonator having a first and second resonant frequencies and associated with a first inductive partner element for removing said second resonant frequency and with a second capacitive partner element for tuning said first resonant frequency, said at least first resonator component being adjustable via said electric control signal (Vtune).
REFERENCES:
patent: 5043681 (1991-08-01), Tanemura et al.
patent: 6950639 (2005-09-01), Gogolla et al.
patent: 7030718 (2006-04-01), Scherer
patent: 2001/0028277 (2001-10-01), Northam
patent: 2004/0227578 (2004-11-01), Hamalainen
patent: 2005/0266823 (2005-12-01), Cathelin et al.
patent: 2 455 816 (1980-11-01), None
patent: 615841 (1949-01-01), None
patent: WO 02/25813 (2002-03-01), None
Akbari-Dilmaghani, R., et al., “A High Q RF CMOS Differential Active Inductor,” in Proceedings of the IEEE Electronics, Circuits and Systems Int'l. Conference, Lisboa, Portugal, Sep. 7-10, 1998, pp. 157-160.
Koroglu, M., et al., “A 1.9Ghz Image-Reject Front-End with Automatic Tuning in a 0.15μm CMOS Technology,” in Proceedings of the IEEE Int'l. Solid State Circuits Conference, San Francisco, CA, Feb. 9-13, 2003, pp. 1-10.
Cathelin Andreia
Razafimandimby Stephane
de Guzman Dennis M.
Jorgenson Lisa K.
Kinkead Arnold
STMicroelectronics S.A.
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