Wideband squaring cell

Details Wideband squaring cell Wideband squaring cell

2007-09-11

2007-09-11

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

Exponential

C327S346000

Reexamination Certificate

active

11206070

ABSTRACT:
A squaring cell comprises a first circuit responsive to an input voltage to produce a corresponding current, and a second circuit, preferably in the form of an absolute modulator circuit, responsive to the current produced by the first circuit and to the input voltage to produce an output current that corresponds to the square of the input voltage. In one embodiment, the first circuit comprises an absolute value voltage-to-current converter; in another, the first circuit comprises a linear voltage-to-current converter. Techniques to improve accurate square law performance of the cell, independent of temperature, and of broad input voltage range and frequency, are presented.

REFERENCES:
patent: 5077541 (1991-12-01), Gilbert
patent: 5432478 (1995-07-01), Gilbert
patent: 5481224 (1996-01-01), Kimura
patent: 5485119 (1996-01-01), Kimura
patent: 5684431 (1997-11-01), Gilbert et al.
patent: 6172549 (2001-01-01), Gilbert
patent: 6204719 (2001-03-01), Gilbert
patent: 6348829 (2002-02-01), Gilbert
patent: 6429720 (2002-08-01), Gilbert
patent: 6437630 (2002-08-01), Gilbert
patent: 6489849 (2002-12-01), Gilbert
patent: 6525601 (2003-02-01), Gilbert
patent: 6861890 (2005-03-01), Gilbert
AD8367: 500MHz, Linear-in-dB VGA with AGC Detector, 2001.
AD8362: 50HZ to 2.7 GHz 60dB TruPwr Detector, 2004.
AD8361: LF to 2.5GHz TruPwr Detector, 2004.

Affiliated with

Also associated with

Rating

Wideband squaring cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wideband squaring cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wideband squaring cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3776767