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一、引言噪声通常是指电学系统中那些无规则的杂乱的电流起伏,是电子器件的固有属性之一.它决定了用在放大和接收设备中电子器件的极限灵敏度.晶体管主要用来接收和放大微弱的电信号,因此在晶体管问世后随即开始了它的噪声性能的研究.1952年比德里兹提出了与p-n结有关器件的噪声理论,其后蒙德高梅、冯德、采耳等人的工作使合金管的噪声理论逐步完善.目前合金管中除1/f噪声外其他噪声的机
I. INTRODUCTION Noise usually refers to the irregular messy current fluctuations in electrical systems and is one of the inherent properties of electronic devices that determine the ultimate sensitivity of electronic devices used in amplifying and receiving devices. Transistors are mainly used to receive and Amplification of weak electrical signals, so immediately after the advent of the transistor began its noise performance.In 1952 Beadleitz proposed pn junction device noise theory, followed by Monteggia, Feng De, mining ear, etc. The work of people to make the alloy tube noise theory gradually improved.At present the alloy tube in addition to 1 / f noise other noise machine