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这篇报告叙述了X波段低噪声行波管的结构和工作特性。关于行波管的低噪声性能设计在本刊1963年第五期的译文中已经讨论过。这里只介绍一些实际的问题。研制中做成了五只管子,在8到11.6千兆赫频段中最终设计的噪声系数在10.5分贝以下。在同样的频段内,增益大于30分贝。在8.3千兆赫测得的最低噪声系数为8分贝。
This report describes the structure and operating characteristics of an X-band low-noise TWT. The design of the low-noise performance of TWT has already been discussed in the translation of the fifth issue of 1963. Here only introduce some practical problems. Five tubes were made and a noise figure of less than 10.5 dB was finally designed in the 8 to 11.6 GHz band. In the same frequency band, the gain is greater than 30 dB. The lowest noise figure measured at 8.3 GHz is 8 dB.