Device, system and method to provide different bias voltages...

Details Device, system and method to provide different bias voltages... Device, system and method to provide different bias voltages...

2007-08-28

2007-08-28

Gesesse, Tilahun (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With tuning

C455S119000, C455S180300, C331S03600C

Reexamination Certificate

active

10331603

ABSTRACT:
In some embodiments of the present invention, multiple voltage controlled capacitor branches may be employed in a tuning circuit. Each of the multiple voltage controlled capacitors branches may be set to somewhat apart resonance frequency so that a composite resonance derivative curve forms an equi-ripple curve with an improved tuning sensitivity linearization.

REFERENCES:
patent: 3976944 (1976-08-01), Kreng et al.
patent: 5059892 (1991-10-01), Stoft
patent: 5563545 (1996-10-01), Scheinberg
patent: 5740523 (1998-04-01), Nakajima et al.
patent: 6563392 (2003-05-01), Gomez et al.
Salimi et al., “Linear OTAs for Continuous-Time Circuits: Oscillators and Filters”, pp. 1-2.
Barrie Gilbert, “The MICROMIXE: A Highly Linear Variant of the Gilbert Mixer Using a Bisymmetric Class-AB Input Stage”, IEEE Journal of Solid-State Circuits, vol. 32, No. 9, Sep. 1997, pp. 1412-1423.

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