The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 08, 2018

Filed:

Mar. 16, 2017
Applicant:

Inphi Corporation, Santa Clara, CA (US);

Inventors:

Ariel Leonardo Vera Villarroel, Porter Ranch, CA (US);

Subramaniam Shankar, Thousand Oaks, CA (US);

Steffen O. Nielsen, Newbury Park, CA (US);

Assignee:

INPHI CORPORATION, Santa Clara, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/30 (2006.01); H03F 3/19 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3036 (2013.01); H03F 3/19 (2013.01); H03F 3/4508 (2013.01); H03F 2200/451 (2013.01); H03F 2203/45156 (2013.01);
Abstract

A variable gain amplifier having stabilized frequency response for widened gain control range. A resistor-capacitor compensation network is provided between two differential current input ports and corresponding emitter nodes of cross-coupled four transistors in the variable gain amplifier to desensitize the gain control voltages to the system noise and provide compensation to the VGA frequency response when the differential gain control voltage varies the gain setting, yielding a substantially stabilized frequency response over a −3 dB bandwidth ranging from 1 GHz to 60 GHz with a widened gain control range up to 12 dB without increasing power consumption.


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Vera Villarroel, Ariel. (2018). Variable gain amplifier with stable frequency response (U.S. Patent No. 9966917). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9966917

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