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:
Aug. 16, 2016
Filed:
Oct. 30, 2014
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/191 (2006.01); H03F 1/26 (2006.01); H03F 1/22 (2006.01); H03F 3/50 (2006.01); H03F 3/193 (2006.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H03F 1/26 (2013.01); H03F 1/22 (2013.01); H03F 1/226 (2013.01); H03F 3/191 (2013.01); H03F 3/193 (2013.01); H03F 3/50 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01); H04W 88/08 (2013.01);
Abstract
A two-stage RF amplifier is provided. The first stage is a common-emitter transistor arrangement with a purely reactive degeneration impedance and an output impedance with a reactive component matched in frequency response to the degeneration impedance. The second stage is a buffer amplifier. The first amplifier can be designed for high gain which is flat over frequency by virtue of the reactive degeneration impedance. The first amplifier provides input matching, and the buffer provides output matching, with decoupling between the input and output.