Harmonic mixing at sub-mm wave band has been studied on two different HTS mixing systems:one is mounted on pulse tube cryocooler, the other is G-M cryocooler.

• 我们分别选用了小型脉冲管制冷机以及小型G-M制冷机设计了高温超导混频测量系统,对亚毫米波段谐波混频进行了实验研究。