標題: Microwave and Millimeter-Wave Cryogenic Wideband LNA Design and Characterization
作者: Chen, Ying
Li, Zheng-Kai
Wu, Kun-Long
Li, Bin
Hu, Robert
電機學院
College of Electrical and Computer Engineering
公開日期: 2015
摘要: -This manuscript reports our progress in designing wideband LNAs for use in radio-astronomical receivers. These include two WIN-150nm and five WIN-100nm GaAs pHEMT LNAs. Following a general description of design methodology, the LNAs\' simulated and measured results at room temperature will be presented. To make these LNAs eligible for low temperature applications, a cryogenic noise measurement system using multi-point variable-temperature-load (VTL) method is constructed where the system is computer controlled, and both the noise calibration and de-embedding concerns are properly addressed. At 14K ambient temperature, the 5-10GHz LNA has its averaged T. equal to 8K and the 8-20GHz LNA has its T. around 10K
URI: http://hdl.handle.net/11536/135911
ISBN: 978-1-4799-8767-2
期刊: 2015 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC), VOLS 1-3
Appears in Collections:Conferences Paper