相位常数是描述传输线上传播的电磁波在传播中相位变化的物理量
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从而推得多叶应力区扭转光纤中的超本地模，由超本地模的相位常数来确定该光纤的双折射。
Then, super-local modes in multi-lobe stress region spun fibers can be obtained by using mode transform. Finally, the fiber birefringence is decided from the phase constants of super-local modes.
通过在微带漏波天线的辐射边缘周期性地加载微带电感，可减小微带漏波天线的相位常数，进而减小微带漏波天线的主波束方向角。
The phase constant of MLWA decreases with microstrip inductors loading along the leaky line, which results in the decrease of the main beam direction angle of MLWA.
在资料的上限频率不高时，介质的黏滞性将导致地震波发生一个常数的相位延迟。
The viscoelasticity of a medium makes seismic wave have a constant phase delay when u…
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