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IEICE TRANSACTIONS on Electronics

Architecture and Analysis of Sub-Nyquist Rate Sampling for Behavioral Modeling of Wideband Power Amplifiers

Youngcheol PARK, Hyunchul KU

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Summary :

For the modeling of power amplifiers (PAs) using sub-Nyquist-rate sampling (sub-sampling), a quadratic down-converting architecture with a parallel-cascade method is suggested. Its performance was analyzed regarding the sampling rate below the input Nyquist rate. As a result, the model from the sub-sampling below the input Nyquist rate characterized long-term memory effects whereas the memoryless model could not. The measurement results from RF PAs with the mWiMAX signal verified the modeling performance of this architecture. Also, for the modeling of memoryless PAs, it was shown that this sub-sampled model is still effective regardless of the sampling rate.

Publication
IEICE TRANSACTIONS on Electronics Vol.E93-C No.10 pp.1544-1547
Publication Date
2010/10/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E93.C.1544
Type of Manuscript
BRIEF PAPER
Category
Electronic Components

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