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.

Patent No.:

US 6930547 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 16, 2005

Filed:

Aug. 05, 2003
Applicants:

Rajiv Chandrasekaran, Basking Ridge, NJ (US);

Andrew Dodd, Martinsville, NJ (US);

Inventors:

Rajiv Chandrasekaran, Basking Ridge, NJ (US);

Andrew Dodd, Martinsville, NJ (US);

Assignee:

Andrew Corporation, Orland Park, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F001/26 ;
U.S. Cl.
CPC ...
Abstract

An input signal having amplitude information is pre-distorted and converted into two pre-distorted signals without amplitude information. The two pre-distorted signals are separately amplified and then recombined to generate a linearized amplified output signal having amplitude information. The pre-distortion and conversion may be implemented using a pre-distorter and a LINC modulator. Alternatively, the pre-distortion and conversion may be implemented in circuitry that combines the functions of a pre-distorter and a LINC modulator. The amplified, pre-distorted signals are preferably combined using circuitry that provides at least some impedance matching, such as a transformer or a transmission line tee with transmission line stubs.


Find Patent Forward Citations

Chandrasekaran, Rajiv. (2005). Linearizing linc amplifiers using pre-distortion (U.S. Patent No. 6930547). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6930547

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