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.:
Date of Patent:
Apr. 19, 2011
Filed:
May. 06, 2009
Lawrence K. Lam, San Jose, CA (US);
Albert Ngo, San Jose, CA (US);
Lawrence K. Lam, San Jose, CA (US);
Albert Ngo, San Jose, CA (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
Systems and methods for achieving linear amplification with high efficiency are provided. An input signal is amplified using a plurality of amplifiers by dividing the input signal into a plurality of inputs signals, amplifying the plurality of input signals with the plurality of amplifiers and combining the amplified output signals of the plurality of amplifiers into a single amplified output signal. Coefficients are applied to the input signals and the amplified output signals of the amplifiers so that non-linear products due to the amplifiers are suppressed when the amplified output signals of the amplifiers are combined into the single amplified output signal. The suppression of the non-linear products allows an amplification system to achieve linear amplification using high efficiency non-linear amplifiers. The systems and methods can also be applied to other non-linear devices, for example, mixers and modulators, to suppress non-linear products in these devices.