Wang, Ziming and Guan, Lei and Farrell, Ronan
(2017)
Compact undersampled digital predistortion for flexible single-chain multi-band RF transmitter.
In:
2017 IEEE MTT-S International Microwave Symposium (IMS).
IEEE, pp. 1542-1545.
ISBN 978-1-5090-6360-4
Abstract
Compact multi-band RF transmitter solution will play a unique role in the forthcoming 4G-beyond and 5G wireless networks. The emerging RF class data convertor, i.e., RFDAC enables a promising single-chain multi-band RF transmitter solution. To combat the imperfections of practical nonlinear power amplifiers in the single-chain multi-band RF solution, we need multi-band RF signal conditioning unit. This paper presents a very compact single-chain multi-band digital predistortion (DPD) solution using only one under-sampling ADC and a low band-pass filter to replace the conventional DPD feedback paths. The experimental results verified the proposed compact multiband DPD architecture. Preliminarily, the proposed DPD scheme with a single real ADC at 76.8MSPS sampling rate can achieve satisfactory multi-band linearization performance, i.e., -55 dBc adjacent channel power ratio (ACPR) for 1GHz RF bandwidth.
| Item Type: |
Book Section
|
| Additional Information: |
This paper was presented at IEEE MTT-S International Microwave Symposium (IMS), 4-9 Jun 2017, Honololu, HI, USA. |
| Keywords: |
analogue-digital conversion;
band-pass filters;
linearisation techniques;
power amplifiers;
radio transmitters;
signal sampling;
wideband amplifiers;
compact multiband RF transmitter solution;
5G wireless networks;
emerging RF class data convertor;
single-chain multiband RF transmitter solution;
single-chain multiband RF solution;
multiband RF signal conditioning unit;
single-chain multiband digital predistortion solution;
low band-pass filter;
compact multiband DPD architecture;
single real ADC;
multiband linearization performance;
1GHz RF bandwidth;
nonlinear power amplifiers;
compact undersampled digital predistortion;
frequency 1.0 GHz;
digital predistortion;
multi-band transmitter;
PA linearization;
RFDAC;
undersampling ADC; |
| Academic Unit: |
Faculty of Science and Engineering > Electronic Engineering |
| Item ID: |
11911 |
| Identification Number: |
https://doi.org/10.1109/MWSYM.2017.8058923 |
| Depositing User: |
Ronan Farrell
|
| Date Deposited: |
28 Nov 2019 15:50 |
| Publisher: |
IEEE |
| Refereed: |
Yes |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
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