Optimization of a corrugated millimeter-wave waveguide and a miter bend by FDTD simulation
Optimization of a corrugated millimeter-wave waveguide and a miter bend by FDTD simulation
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DOI：
10.1088/1742-6596/410/1/012046
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发表时间：
2013-02
期刊：
影响因子：
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通讯作者：
H. Nakamura;N. Kashima;A. Takayama;K. Sawada;Y. Tamura;S. Fujiwara;S. Kubo
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文献类型：
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作者：
H. Nakamura;N. Kashima;A. Takayama;K. Sawada;Y. Tamura;S. Fujiwara;S. Kubo
通过时域有限差分（FDTD）模拟计算了电磁波在由波导和斜接弯曲组成的系统中的传输效率。作为这种估计的第一步，我们选择了输入波为TE_（11）模的情况。在这种情况下，对于没有凹槽的系统，效率估计为99.65%，而对于具有凹槽的系统（其被称为“凹槽”），效率估计为76.48%。通过比较输入电场和输出电场的分布，发现沟槽的作用是：由于TE 11模具有各向异性，斜接弯曲改变了TE 11模的形状。这种特性在波纹状系统中比非波纹状系统更强。
We estimate the transmission efficiency of the electromagnetic wave through the system composed of waveguide and miter bend by Finite-Difference Time-Domain (FDTD) simulation. As the fisrt approach of this estimation, we choose the case that the input wave is TE11 mode. In this case, the efficiency is estimated as 99.65 % for the system without grooves and 76.48 % for the system with grooves (which is called as "corrugate"). Comparing the distributions of the input electric field with that of the output electric field, the effect of the grooves is found as follows: Because the TE11 mode has an anisotropy, its shape is changed by the miter bend. This property appears in the corrugated system more strongly than the non-corrugated system.