Green Communications: Digital Predistortion for Wideband RF Power Amplifiers
Files in This Item:
|IEEE_MicrowaveMagazine_Guan.pdf||792.5 kB||Adobe PDF||Download|
|Title:||Green Communications: Digital Predistortion for Wideband RF Power Amplifiers||Authors:||Guan, Lei
|Permanent link:||http://hdl.handle.net/10197/8638||Date:||12-Nov-2014||Abstract:||The RF PA, as one of the most essential components in any wireless system, suffers from inherent nonlinearities. The output of a PA must comply with the linearity requirement specified by the standards. Due to its satisfactory linearization capability, DPD has been widely accepted as one of the fundamental units in modern and future wideband wireless systems. With the help of this flexible digital technology, the inherent linearity problem of PAs operating in the saturation region can be significantly improved, which enables us, the wireless engineers, to create more suitable RF transceiver architectures to provide wireless access with better user experience (linearity perspective) and less power waste (power efficiency perspective). This moves us one more step towards the ultimate green communications. In this article, we discussed the DPD techniques in the context of linearizing nonlinear RF PAs. As the computing-horsepower and the transistor-density of digital IC increases while the cost per transistor decreases, the concept that uses digital enhancement techniques to eliminate active analog imperfects will gain more attention from both industry and academia.||Type of material:||Journal Article||Publisher:||IEEE||Journal:||IEEE Microwave Magazine||Volume:||15||Issue:||7||Start page:||84||End page:||99||Copyright (published version):||2014 IEEE||Keywords:||Wideband amplifiers; Harmonic distortion; Linearisation techniques; Rradio transceivers; Radiofrequency power amplifiers||DOI:||10.1109/MMM.2014.2356037||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Electrical and Electronic Engineering Research Collection|
Show full item record
This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.