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:
Dec. 01, 2015
Filed:
Mar. 14, 2014
Applicant:
Rf Micro Devices, Inc., Greensboro, NC (US);
Inventor:
Jean-Frederic Chiron, Tournefeuille, FR;
Assignee:
RF Micro Devices, Inc., Greensboro, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 11/12 (2006.01); H04B 1/04 (2006.01); H03G 3/20 (2006.01); H03F 1/26 (2006.01); H03F 3/189 (2006.01); H03F 3/20 (2006.01); H03F 1/02 (2006.01);
U.S. Cl.
CPC ...
H03F 1/26 (2013.01); H03F 1/0222 (2013.01); H03F 1/0266 (2013.01); H03F 3/189 (2013.01); H03F 3/20 (2013.01);
Abstract
A radio frequency (RF) power amplifier (PA) and an envelope tracking power supply are disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply voltage. The envelope tracking power supply provides the envelope power supply voltage based on a setpoint, which has been constrained so as to limit a noise conversion gain (NCG) of the RF PA to not exceed a target NCG.