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:
Feb. 16, 2016
Filed:
Jul. 19, 2012
Andrew F. Folkmann, Cedar Rapids, IA (US);
James M. Retz, Cedar Rapids, IA (US);
Nadim Khlat, Cugnaux, FR;
Jean-frederic Chiron, Tournefeuille, FR;
Andrew F. Folkmann, Cedar Rapids, IA (US);
James M. Retz, Cedar Rapids, IA (US);
Nadim Khlat, Cugnaux, FR;
Jean-Frederic Chiron, Tournefeuille, FR;
RF Micro Devices, Inc., Greensboro, NC (US);
Abstract
A method of defining a quasi iso-gain supply voltage function for an envelope tracking system is disclosed. The method includes a step of capturing iso-gain supply voltage values versus power values for a device under test (DUT). Other steps involve locating a minimum iso-gain supply voltage value, and then replacing the iso-gain supply voltage values with the minimum iso-gain supply voltage value for corresponding output power values that are less than an output power value corresponding to the minimum iso-gain supply voltage value. The method further includes a step of generating a look-up table (LUT) of iso-gain supply voltage values as a function of input power for the DUT after the step of replacing the iso-gain supply voltage values with the minimum iso-gain supply voltage value for corresponding output power values that are less than an output power value corresponding to the minimum iso-gain supply voltage value.