Design of Leakywave Coaxial Cable Compatible for Both 2g and 3g Wireless Communications
Design of Leakywave Coaxial Cable Compatible for Both 2g and 3g Wireless Communications
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DOI：
10.1163/156939308784159462
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发表时间：
2008-01
影响因子：
1.3
通讯作者：
H. S. Wang;C. Z. Gu;S. Qiao;M. Mu;W. Cui;W. Ma;J. Huangfu;L. Ran
中科院分区：
文献类型：
--
作者：
H. S. Wang;C. Z. Gu;S. Qiao;M. Mu;W. Cui;W. Ma;J. Huangfu;L. Ran
设计了一种具有良好耦合损耗性能和多工作频带的新型开槽漏波同轴电缆，利用FDTD模拟得到电缆一段外表面的电场和磁场分布，然后应用惠更斯原理计算其远场辐射。研究了缝隙间的耦合效应，发现缝隙间的耦合效应对高频辐射场有显著影响。采用遗传算法对基本单元内的缝隙间距和基本单元的周期进行优化，以获得更好的耦合损耗性能。测试结果与仿真结果吻合较好，表明该方法对设计具有多频段要求的此类电缆是有效的。
The design of a new type slotted leakywave coaxial cable with good coupling loss performance and multiple operating frequency bands is presented, in which FDTD simulation is utilized to obtain the electric and magnetic fields' distribution on a specified surface enclosing a segment of the cable, and then Huygens' Principle is applied to calculate the far field radiation. Coupling effect between slots has also been studied, which is verified to have significant effect on the radiation field at higher frequency band. Genetic algorithm is used to optimize the spacing between the slots inside a fundamental cell and the period of the fundamental cells to get better coupling loss performance. Measured results agree well with the simulation data, indicating that the methodology is effective for the design of such cables with multi-bands requirements.