By Topic

Spectral regrowth analysis in wideband polar architectures applied to software defined radio

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)

Polar architectures offering good efficiency tend to be generalized to broadband standards with high Peak to Average Power Ratio and rigorous emission mask. Some well-known sources of spectral distortions as delay between phase and envelope paths and PA nonlinearities reduce the relevance of such technique. This paper analyses another drawback which is the spectral regrowth produced by filtering the phase signal and not the envelope signal that is done in an architecture based on a digital PA. Three kind of spectral distortions are observable. The first one is Adjacent Channel Leakage Ratio degradation due to spectral regrowth in adjacent channels depending on the oversampling ratio. The two other effects attenuate and enlarge the out-of-band images what could be used to alleviate the filtering requirements for wideband systems.

Published in:

New Circuits and Systems Conference (NEWCAS), 2011 IEEE 9th International

Date of Conference:

26-29 June 2011