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本文描述一种新型的放电管,可以水平地插入圆波导作为标准噪声源。在3厘米波段工作时,当终端短路的情况下对波导系统的匹配是良好的(V.S.W.R=1.10±0.05),并且具有18±0.5db的稳定噪声输出。这结果可以应用在发展8毫米以下及10厘米以上的波导型噪声管的研究工作上。
This article describes a new type of discharge tube that can be inserted horizontally into a circular waveguide as a standard noise source. When operating in the 3 cm band, the matching of the waveguide system is good (V.S.W.R = 1.10 ± 0.05) with a shorted terminal and has a stable noise output of 18 ± 0.5 dB. This result can be applied to the research work on the development of waveguide-type noise tubes below 8 mm and above 10 cm.