It was found that the transmission spectrum of the filter is the cosine function modulated reflection spectrum of the fiber grating.

结果表明该滤波器的透射光谱是余弦函数调制后的光纤光栅反射光谱。

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This antenna was divided into two parts: polarization-rotation grating and reflection- transmission grating etching on the paraboloid dielectric plate, which are designed respectively.

本文将天线分成扭转极化板栅条、抛物面反射透射栅条天线二部分，分别独立设计完成。

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