V波段介质加载梯形慢波结构研究

Study of V-band Dielectric Loaded Ladder Slow Wave Structure

研究了V波段介质加载梯形慢波结构。通过在耦合槽和间隙处进行适当介质加载,降低主模的相速,改善色散特性。使用CST对其慢波结构进行仿真,得到色散曲线和耦合阻抗,结果表明介质加载对耦合阻抗的影响很小,但却可以明显地降低相速,同时色散特性也更为平坦。

The V-band dielectric loaded ladder slow wave structure is studied.The dielectric has been loaded in coupling slots and gaps for the purpose of reducing the phase velocity and improving the dispersion characteristic.Based on our analysis,performing the dielectric load action in V-band has a small influence on the coupling impedance of ladder slow wave structure,however,this could help us to gain significant phase velocity reduction as well as dispersion characteristic improvement.And this conclusion has been well proved by related simulation results.