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在36千兆赫上用点接触约氏结观察到了二度简并参量放大作用。最好的放大器净增益为11dB,噪声温度低于50K。
A second degree degenerated parametric amplification was observed with a point-contact Junction at 36 GHz. The best amplifier has a net gain of 11dB and a noise temperature below 50K.