Experimental characterization of a 6.7 GHz coaxial Bragg reflector.
Experimental characterization of a 6.7 GHz coaxial Bragg reflector.
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DOI：
10.1063/1.2782761
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发表时间：
2007-09
期刊：
影响因子：
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通讯作者：
J. Barroso;P. J. Castro;Joaquim P. Leite;G. L. Pimentel
中科院分区：
文献类型：
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作者：
J. Barroso;P. J. Castro;Joaquim P. Leite;G. L. Pimentel
在4.0-9.5 GHz频率范围内，设计并构造了由内导体上的圆盘周期性加载的同轴线作为布拉格反射器。这是通过在内径为6.90和4.22厘米的同轴波导上放置10个圆盘（0.35厘米厚，直径为6.22厘米），间隔为1.8厘米的周期距离来实现的。在不锈钢周期性结构上的实验表明，在6.7 GHz设计频率处有5.6 GHz的带隙，与三维微波计算机模拟结果非常吻合。
A coaxial line periodically loaded by circular disks on the inner conductor is designed and constructed to act as Bragg reflector in the 4.0-9.5 GHz frequency range. This is achieved by placing 10 disks (0.35 cm thick and 6.22 cm in diameter) equally spaced by the periodic distance of 1.8 cm on a coaxial waveguide with inner and outer diameters of 6.90 and 4.22 cm. Experiments on a periodic structure made from stainless steel demonstrate a band gap of 5.6 GHz centered at the 6.7 GHz design frequency in close agreement with 3D microwave computer simulations.