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:
Jan. 05, 2016
Filed:
Jan. 08, 2015
Arvind Kaushik, Ghaziabad, IN;
Peter Z. Rashev, Calgary, CA;
Amrit P. Singh, Ludhiana, IN;
Akshat Mittal, Greater Noida, IN;
Arvind Kaushik, Ghaziabad, IN;
Peter Z. Rashev, Calgary, CA;
Amrit P. Singh, Ludhiana, IN;
Akshat Mittal, Greater Noida, IN;
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
A system for calibrating a power amplifier (PA) includes a memory, a processor, a digital pre-distorter (DPD), and a data converter. The DPD includes a programming interface module, a pattern generator, a multiplier, and a pre-distorter module. The multiplier multiplies reference baseband stream data from the memory with pattern coefficient data generated by the pattern generator to generate shaped reference baseband stream data. The pre-distorter module generates pre-distorted shaped reference baseband stream data. The PA receives a low-power reference radio frequency (RF) signal corresponding to the pre-distorted shaped reference baseband stream data and generates a high-power reference RF signal. The processor receives and compares the pre-distorted shaped reference baseband stream data with amplified shaped reference baseband stream data corresponding to the high-power reference RF signal, and adjusts pre-distortion parameters in the pre-distorter module based on the comparison such that the PA generates a linear high-power RF signal.