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:
Oct. 21, 2025
Filed:
Jun. 08, 2022
Analog Devices International Unlimited Company, County Limerick, IE;
Patrick Pratt, Mallow, IE;
Dong Chen, Beijing, CN;
Mark Cope, Bath, GB;
Christopher Mayer, Dover, MA (US);
Praveen Chandrasekaran, Bangalore, IN;
Stephen Summerfield, Melrose, MA (US);
Naveen Naraharisetti, Westford, MA (US);
Analog Devices International Unlimited Company, Co. Limerick, IE;
Abstract
Systems and methods for compensating a transmit signal for charge trapping effects of a power amplifier are provided. In certain embodiments, a non-linear filter is trained based on time aligning a first set of observations taken from digital transmit data prior to conversion to a radio frequency transmit signal, and a second set of observations taken from an output of a power amplifier that amplifies the radio frequency transmit signal. In certain implementations, the first set of observations and the second set of observations are obtained without decimation. Rather, decimation is provided after timing alignment. By implementing the DPD system in this manner, signal data is not lost by decimation and more accurate timing alignment between the sets of observations is achieved.