A Novel Multi-Band Look-Up Table Based Digital Predistorter with a Single Common Feedback Loop

被引：0

作者：

Ota, Tomoya ^{[1
]}

Kawasaki, Toshio ^{[1
]}

Kimura, Shigekazu ^{[1
]}

Tamanoi, Ken ^{[1
]}

Ishikawa, Hiroyoshi ^{[2
]}

Shimizu, Masahiko ^{[1
]}

Maniwa, Toru ^{[1
]}

机构：

[1] Fujitsu Ltd, Kawasaki, Kanagawa, Japan

[2] Fujitsu Labs Ltd, Kawasaki, Kanagawa, Japan

来源：

2018 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS (APMC) | 2018年

关键词：

digital predistorter (DPD); look-up table (LUT); multi-band; power amplifier (PA); single common feedback loop;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a novel adaptive multi-band look-up table (LUT)-based digital predistorter (DPD) with a single common feedback loop for concurrent multi-band power amplifiers (PAs). The proposed DPD reduces the total complexity to one-hundredth by implementing a LUT-based DPD model and updating the DPD coefficients using the reciprocal operation of each PA model coefficient. Simulation results for LTE-based systems show that the proposed low complexity DPD can achieve 50 dB adjacent channel leakage ratio (ACLR) level, which completely satisfies the 3GPP standard.

引用

页码：551 / 553

页数：3

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