摘要
介绍了Ka波段低温低噪声放大器的设计和试验结果。在物理温度20K的环境下,在4GHz频率范围内,噪声温度小于27K,增益大于18.5d B。
This paper presented a Ka-band cryogenic low noise amplifier verified by experiment. The measurement results show that the gain is higer than 18. 5d B and the noise temperture is lower than 27 K within frequency range of 4GHz in the environment of 20 K physical temperture.
出处
《低温与超导》
CAS
北大核心
2015年第12期85-87,共3页
Cryogenics and Superconductivity
关键词
噪声温度
低温放大器
微带-波导过渡
Noise temperature
Cryogenic low noise amplifiers
Microstrip to waveguide transition
