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本文描述了一个100kHz～50MHz 宽带放大器的设计与实验。本放大器增益54dB,带内波动为0.6dB,在200Ω负载上输出可达3伏。已在雷达接收机中做视频放大器运用。一、前言目前宽带集成电路纷纷出现,并为很多无线电设备所应用。但大多数集成电路在较宽的频带运用时,要获得带内平坦,需加较多的外围补偿元件也难满足要求。另一方面,很多集成电路线性范围小,输出幅度很有限。为此根据某一任务的要求制作了100kHz～50MHz
This article describes the design and experiment of a 100kHz ~ 50MHz wideband amplifier. The amplifier gain of 54dB, in-band fluctuations of 0.6dB, 200Ω load on the output up to 3 volts. Video amps have been used in radar receivers. I. Preface At present, broadband integrated circuits have appeared one after another, and are applied to many radio equipment. However, when most ICs are used in a wider frequency band, it is difficult to meet the requirements of obtaining a flat ribbon in the periphery and more peripheral compensation components to be added. On the other hand, many integrated circuits have a small linear range and limited output. According to the requirements of a task made for this 100kHz ~ 50MHz