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:
Sep. 26, 2017

Filed:

Aug. 25, 2016
Applicant:

Marvell International Ltd., Hamilton HM, BM;

Inventors:

Emre Ayranci, Costa Mesa, CA (US);

Marco Garampazzi, Casorate Primo, IT;

Shahrzad Tadjpour, Laguna Niguel, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/56 (2006.01); H03F 3/193 (2006.01); H04B 1/10 (2006.01);
U.S. Cl.
CPC ...
H03F 1/56 (2013.01); H03F 3/193 (2013.01); H03F 2200/222 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01); H04B 1/10 (2013.01);
Abstract

A low noise amplifier (LNA) system for amplifying a plurality of carriers includes a first amplifier circuit that generates a first radio-frequency (RF) output signal by amplifying a first input RF signal corresponding to a first frequency band, the first amplifier circuit having a first input impedance, and a second amplifier circuit that generates a second RF output signal by amplifying the first input RF signal when the system is in a first multi-output mode, a second input impedance of the second amplifier having a first impedance value when the system is in the first multi-output mode. The LNA system further includes a first impedance controller that maintains the second input impedance of the second amplifier circuit at a second impedance value when the apparatus is in a mode other than the first multi-output mode. The second impedance value is substantially the same as the first impedance value.


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