A cryogenic 30-50 GHz balanced low noise amplifier using 0.15-μm MHEMT process for radio astronomy applications

Shou Hsien Weng, Wei Chu Wang, Hong Yeh Chang, Chau Ching Chiong, Ming Tang Chen

研究成果: 書貢獻/報告類型會議論文篇章同行評審

4 引文 斯高帕斯(Scopus)

摘要

In this paper, a Q-band balanced low noise amplifier (LNA) for radio astronomy applications is presented using 0.15-μm InGaAs metamorphic high electron mobility transistor (MHEMT) process. By using the balanced configuration, the input/output return losses and output 1-dB compression point of the LNA are improved. For the on-wafer measurement, the balanced LNA exhibits a broad bandwidth of from 27.3 to 50.7 GHz with a small-signal gain of 23.1 dB. The balanced LNA is further assembled in a packaged module for the cryogenic measurement. At a cryogenic temperature of 28 K, the average small-signal gain is higher than 19.5 dB from 30 to 50 GHz with the minimum equivalent noise temperature of 44.8 K. The proposed balanced LNA exhibits potential for radio astronomy applications due to its high small-signal gain, low noise, and low dc power consumption.

原文???core.languages.en_GB???
主出版物標題Proceedings of the 2012 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2012
頁面177-179
頁數3
DOIs
出版狀態已出版 - 2012
事件2012 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2012 - Singapore, Singapore
持續時間: 21 11月 201223 11月 2012

出版系列

名字Proceedings of the 2012 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2012

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???event.eventtypes.event.conference???2012 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2012
國家/地區Singapore
城市Singapore
期間21/11/1223/11/12

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