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Title: The effect of D/A accuracy on the performance of digital predistortion for RF power amplifiers
Authors: Wu, SY
Hau, SF 
Wong, YM
Keywords: UHF power amplifiers
Circuit testing
Nonlinear distortion
Issue Date: 2006
Publisher: IEEE
Source: 2006 IEEE International Symposium on Circuits and Systems, 2006 : ISCAS 2006 : proceedings : 21-24 May 2006, Island of Kos, p. 21-24 How to cite?
Abstract: Nonlinearity has long been recognized as a problem endemic in power amplifiers (PA) with a high power. Digital predistortion (DPD) is one of most effective method to solve this problem. The D/A conversion accuracy on the performance of DPD for RF PA is tested in a hardware platform. The device under test is an actual working 30W PA operating at 881.5 MHz. An in-house DPD algorithm is implemented on an Altera Stratix II EP2S60 DSP development board. As the number of bits is decreased from 14 to 10, it is found that the adjacent channel leakage ratio (ACLR) at the PA output has no noticeable degradation. Below 10 bits, the ACLR started to deteriorate significantly
ISBN: 0-7803-9389-9
DOI: 10.1109/ISCAS.2006.1692851
Appears in Collections:Conference Paper

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