螺旋SWS非均匀色散成形对后向波振荡判据的影响

2009 International Conference on Emerging Trends in Electronic and Photonic Devices & Systems Pub Date : 2009-12-01 DOI:10.1109/ELECTRO.2009.5441076

R. Seshadri, P. Rao, K. V. Rao, S. K. Datta, S. Kamath, P. K. Jain

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引用次数: 2

摘要

研究了非均匀色散形成对螺旋声阱后向波的影响。理论模拟了非均匀结构中正色散、平色散和负色散的三种类型及其相互作用阻抗特性。对后向波振荡判据进行了分析，评价了色散整形和波束填充系数对后向波振荡判据的影响。负色散结构有利于提高后向波振荡的阈值。

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Effect of inhomogeneous dispersion shaping of a helical SWS on the backward-wave oscillation criterion

The effect of inhomogeneous dispersion shaping of a helical SWS on the backward-wave has been studied. Theoretical simulations of three types of dispersion, namely, positive, flat and negative, achieved in an inhomogeneous structure and the interaction impedance characteristics thereof were carried out. The analysis of backward-wave oscillation criterion has been carried out to assess the effects of dispersion shaping and the beam-filling factor. A negative dispersion structure has been found to be advantageous in improving the threshold for backward wave oscillation.

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2009 International Conference on Emerging Trends in Electronic and Photonic Devices & Systems

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