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本文简要地描述螺旋线电路中,由于非对称的夹持方式在βρ=π相位点上产生的阻带。该电路ω～β图区域内产生的阻带,导致振荡的起始电流减低。还有力地证明,宽带高功率行波管大讯号频率响应中的“glitches”是由于阻带范围内,在高电路阻抗上,谐波的相互作用所引起。这种电路的简单模型分析表明,阻带的宽度如何随着某一夹持杆的角向位移及某根夹持杆的有效介电负荷——非对称性的两种最普通形式的改变而改变。并说明这种电路的分布损耗如何影响阻带的特性。
This article briefly describes the stop band generated in the βρ = π phase due to asymmetric clamping in a spiral circuit. The resistance band generated in the region of ω ~ β map of this circuit, causes the starting current of oscillation to reduce. It has also been forcefully proved that the “glitches” in the frequency response of broadband high-power TWT large-signal are due to the interaction of harmonics in the high-impedance circuit and in the range of the stopband. A simple model analysis of this circuit shows how the width of the stop band changes with the two most common forms of angular displacement of one clamp rod and the effective dielectric load of one clamp rod - asymmetry change. And shows how the distributional loss of this circuit affects stopband characteristics.