A 44-GHz high-linearity MMIC medium power amplifier with a low-loss built-in linearizer

Jeng Han Tsai, Hong Yeh Chang, Pei Si Wu, Tian Wei Huang, Huei Wang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

7 引文 斯高帕斯(Scopus)

摘要

This paper presents a 44-GHz MMIC medium power amplifier with a low-loss built-in linearizer using a 0.15-μm GaAs HEMT process. The proposed cold-mode HEMT linearizer can enhance the linearity of the power amplifier with a low insertion loss, a compact die-size, and zero dc consumption. These advantages make the linearizer more suitable for millimeter-wave applications. The experimental results show that the medium power amplifier output spectrum re-growth can be suppressed by 7-9 dB at 44 GHz. In addition, the EVM of the QPSK and 16-QAM modulated signal can be reduced from 4.5% to 3.7% and 10.8% to 7.4% respectively. To the best of our knowledge, this is the first attempt of using pre-distortion linearization techniques in millimeter-wave bands.

原文???core.languages.en_GB???
主出版物標題2005 IEEE MTT-S International Microwave Symposium Digest
頁面1575-1578
頁數4
DOIs
出版狀態已出版 - 2005
事件2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States
持續時間: 12 6月 200517 6月 2005

出版系列

名字IEEE MTT-S International Microwave Symposium Digest
2005
ISSN(列印)0149-645X

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???event.eventtypes.event.conference???2005 IEEE MTT-S International Microwave Symposium
國家/地區United States
城市Long Beach, CA
期間12/06/0517/06/05

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