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长期以来,人们对雷达发射机用的兆瓦级末级发射管的效率-带宽特性和增益-带宽特性一直很感兴趣。而且雷达对发射管相位-频率线性,增益平坦性和功率幅值平坦性的要求也越来越高。但是目前微波管产品中,尚没有在这样的功率电平下带宽宽于10％的管子。由于速调管在大功率、高增益、高效率等方面与其他微波管相比,仍占有较大的优势,因此,近十几年来,国际上许多微波管公司,厂家在展宽速调管带宽方面仍进行着不少具有实际意义的研究工作。
For a long time, people have been interested in the efficiency-bandwidth characteristics and gain-bandwidth characteristics of a megawatt-class final launch tube for radar transmitters. And radar on the launch tube phase - frequency linearity, gain flatness and power amplitude flatness requirements are getting higher and higher. However, at present, there is no tube with a bandwidth of more than 10% at such a power level in microwave tube products. As the klystrons still occupy great advantages compared with other microwave tubes in the aspects of high power, high gain, high efficiency, etc., in the recent decade, many international microwave tube companies and manufacturers have been focusing on widening the bandwidth of klystrons There are still a lot of practical research work carried out.