理论上分析了计算周期数对0.22 THz折叠波导慢波结构S参数的影响, 讨论了折叠波导慢波结构各个尺寸参数对损耗特性的影响, 研究了粗糙度与损耗特性之间的关系。通过实验验证了0.22 THz标准矩形直波导的损耗特性。对实际加工的0.22 THz折叠波导慢波结构进行了测试, 得到了实际的太赫兹波折叠波导慢波结构传输与损耗特性。

It is impossible to ignore the influence of S-parameter characteristics in THz folded waveguide slow wave structures. In this paper, the relation between calculated period numbers and S-parameters is considered, the effect of variations of folded waveguide slow wave structures on loss is discussed, and the influence of roughness on loss is present. The loss of 0.22 THz standard rectangular straight waveguides is measured to certify theoretical analysis. Finally, based on test of the machined 0.22 THz folded waveguide slow wave structures, we obtain the transmission and loss characteristics of these slow wave structures.