Cryogenic 8–18 GHz MMIC LNA using GaAs PHEMT
Cryogenic 8–18 GHz MMIC LNA using GaAs PHEMT
复制标题
使用 GaAs PHEMT 的低温 8–18 GHz MMIC LNA
DOI:
10.1109/apmc.2013.6695113
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Huei Wang
中科院分区:
文献类型:
--
作者:
Chau;Ding;Ching;Yuh;Ming;Huei Wang
An 8-18 GHz MMIC LNA is designed and fabricated using 0.15-μm GaAs pHEMT process. The peak LNA is more than 23 dB gain at room temperature and more than 27 dB gain at 17.5 K. At 18 GHz, the room temperature noise figure is 1.5 dB, and the best effective noise temperature at 17.5 K is 20 K. The measured noise data of the LNA are then fitted for the temperature dependent model. The derived equivalent drain temperature is proportional to the drain current, independent of the ambient temperature.