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:
Nov. 10, 2015
Filed:
Feb. 07, 2012
Applicant:
Richard Neil Braithwaite, Orange, CA (US);
Inventor:
Richard Neil Braithwaite, Orange, CA (US);
Assignee:
Intel Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/00 (2006.01); H04L 25/03 (2006.01); H04L 25/49 (2006.01); H03F 3/24 (2006.01); H03F 1/32 (2006.01); H03F 3/189 (2006.01); H04L 27/36 (2006.01); H04B 1/00 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H03F 3/24 (2013.01); H03F 1/3247 (2013.01); H03F 1/3258 (2013.01); H03F 3/189 (2013.01); H04L 27/368 (2013.01); H03F 2201/3209 (2013.01); H03F 2201/3224 (2013.01); H04B 1/0028 (2013.01); H04B 2001/0425 (2013.01);
Abstract
Digital predistortion ('DPD') of an RF power amplifier for signals comprising two widely spaced carrier clusters is proposed. The basis waveforms within the DPD are selected to allow for the use of a lower sampling rate. As one example, multi-carrier signals spanning 60 MHz of bandwidth may be linearized using a sample rate of 100 MHz for the DPD module and the observation path, as opposed to a sample rate exceeding 300 MHz (5 times Nyquist) used conventionally. A transmit (Tx) filter is located after the power amplifier to attenuate distortion modes exceeding the sampling rate used.