Paper Abstract and Keywords |
Presentation |
2022-08-10 09:15
[Invited Talk]
A 39-GHz CMOS Bi-Directional Doherty Phased-Array Beamformer Using Shared-LUT DPD with Inter-Element Mismatch Compensation Technique for 5G Base-Station Zheng Li, Jian Pang, Yi Zhang, Yudai Yamazaki, Qiaoyu Wang, Peng Luo, Weichu Chen, Yijing Liao, Minzhe Tang, Zhengyan Guo, Yun Wang, Xi Fu, Dongwon You (Tokyo Tech), Naoki Oshima, Shinichi Hori, Kazuaki Kunihiro (NEC), Atsushi Shirane, Kenichi Okada (Tokyo Tech) SDM2022-48 ICD2022-16 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This work demonstrates a 39-GHz CMOS phased-array beamformer with the bi-directional Doherty PA-LNA. An inter-element mismatch compensation technique is introduced for improving the shared-LUT DPD performance over the PVT variations. By utilizing the proposed mismatch compensation, the measured 64-QAM OFDMA-mode EVM and ACLR with the shared-LUT DPD are improved from −22.4dB to −25.0dB and from −28.7dBc to −32.1dBc, respectively. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
CMOS / 39GHz / 5G New Radio (NR) / phased array / Doherty / DPD / / |
Reference Info. |
IEICE Tech. Rep., vol. 122, no. 149, ICD2022-16, pp. 64-67, Aug. 2022. |
Paper # |
ICD2022-16 |
Date of Issue |
2022-08-01 (SDM, ICD) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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SDM2022-48 ICD2022-16 |
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