隧道二极管是一种新型的半导体负阻元件,与一般晶体管相比,它具有许多优点,如:频率高、噪声低、特性随温度变化小、对核辐射不敏感、耗能少及制造工艺简单等,近年来已广泛地应用于放大、振荡、变频及脉冲开关等电路.隧道二极管放大器是利用它的负阻特性,因此是一种负阻放大器.该类放大器的优点是噪声低、灵敏度高、耗能少等,能作为高灵敏度接收 Tunnel diode is a new type of semiconductor negative resistance element, which has many advantages compared with general transistors, such as high frequency, low noise, small change of temperature with characteristics, insensitivity to nuclear radiation, less energy consumption and simple manufacturing process Etc. In recent years, it has been widely used in amplifying, oscillating, frequency conversion and pulse switching circuits etc. The tunnel diode amplifier utilizes its negative resistance characteristic and is therefore a negative resistance amplifier which has the advantages of low noise, high sensitivity , Less energy consumption, can be received as a high sensitivity