论文部分内容阅读
随着迴旋管研制工作的进展,目前在毫米波和亚毫米波段迴旋管输出功率要比普通微波管高1—2个数量级。因此迴旋管对其输出窗提出了更高的要求,即:(1)具有较宽的带宽,以减小对不同模式波的反射,(2)具有高的功率容量,使高频损耗、电子轰击、二次电子倍增效应等都不致导致损坏。蓝宝石作输出窗,其性能远好于氧化铝和氧化铍。按文献[4]的公式我们作过粗略计算,在窗结构、工作频率、匹配状态等都相同的情况下,
With the development of the gyrotron, at present, the output power of the gyrotron in the millimeter wave and sub-millimeter wave bands is 1-2 orders of magnitude higher than that of the ordinary microwave tube. Therefore, the gyrotron puts forward higher requirements on its output window, namely: (1) has a wider bandwidth to reduce the reflection of waves of different modes, (2) has a high power capacity, enables high frequency loss, Bombardment, secondary electron multiplication effect will not result in damage. Sapphire output window, its performance is far better than alumina and beryllium oxide. According to the formula of literature [4], we made a rough calculation. Under the same situation of window structure, working frequency and matching state,