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:
Nov. 08, 2022

Filed:

Sep. 01, 2021
Applicant:

Rohde & Schwarz Gmbh & Co. KG, Munich, DE;

Inventors:

Andreas Lagler, Rosenheim, DE;

Florian Ramian, Karlsfeld, DE;

Karolin Werthmueller, Munich, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0475 (2013.01);
Abstract

The present disclosure relates to a predistortion method and a predistortion system for a non-linear device-under-test, DUT. The predistortion method comprises the steps of: providing a reference input waveform to the DUT; deriving a predistorted waveform for the DUT based on the reference input waveform using an iterative direct digital predistortion technique; analyzing a relationship between the reference input waveform and the calculated predistorted waveform using a mathematical model; deriving a predistortion algorithm for the DUT based on said analysis; and applying said predistortion algorithm to an input signal and feeding the, thus, predistorted input signal to the DUT.


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