Abstract

AbstractThis paper presents a method for analyzing bending loss formula for the hybrid mode propagating in a uniform bend. As a hybrid mode, we chose the LP mode and found dependency of the bending loss formula on the directional angle, propagation constant and the amplitude ratio and phase difference of the constituent mode. The results contain those previously obtained and are applicable to more cases. We found that the bending loss of a general LP mode depends on the amplitude ratio and phase difference of the constituent mode, the directional angle, and the propagation constant. A linearly polarized LP mode has its bending loss dependent on the directional angle but not on the polarization angle. The bending loss of the HE and EH modes does not depend on the directional angle. Based on the condition for which the deviation of the field distribution due to the bend is negligible, we found the applicable range of the bending loss formula.

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