波峰线：垂直波浪传播方向上各波峰顶的连线。 波向线：与波峰线正交的线，即波浪传播方向。
考虑角向空间谐波，建立了有限厚度翼片加载螺旋线慢波结构的模型，推导出色散方程。
Considering azimuthal space harmonics, the finite size vane model is suggested for vane-loaded helical slow-wave structures in this paper.
本发明涉及一种基于异向介质微带线的防辐射手机机壳，可有效减小手机的电磁波辐射。
The invention relates to an anti-radiation shell of a cell phone based on microstrip lines of left-handed medium, which can effectively reduce electromagnetic wave radiation of the cell phone.
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