发明授权
US3913027A High gain, large bandwidth amplifier based on the josephson effect
失效
基于JOSEPHSON效应的高增益，大带宽放大器
- 专利标题： High gain, large bandwidth amplifier based on the josephson effect
- 专利标题（中）： 基于JOSEPHSON效应的高增益，大带宽放大器
-
申请号： US44108974申请日： 1974-02-11
-
公开(公告)号： US3913027A公开(公告)日： 1975-10-14
- 发明人: ZAPPE HANS HELMUT
- 申请人： IBM
- 专利权人： Ibm
- 当前专利权人： Ibm
- 优先权： US44108974 1974-02-11; US31958872 1972-12-29
- 主分类号： H01L39/22
- IPC分类号： H01L39/22 ; H03F19/00 ; H03F15/00
摘要：
A wide band linear amplifier comprising first and second heavily damped Josephson devices and associated superconducting circuitry. Each Josephson device has a parallel path with a load resistor connected thereto. The parallel path connected to the first Josephson device is positioned to operate as a control current path for the second Josephson device. Both Josephson devices are operated on linear portions of their respective gain curves. The output current through the second load resistance is a linear amplification of the input current; the latter being applied as control current to the first Josephson device.