利用非对称共面波导提高共面波导弯曲结构传输性能  

Improving transmission performance of coplanar waveguide bend with asymmetric coplanar waveguide

作　　者：陈宏巍[1] 房少军[1] 

机构地区：[1]大连海事大学信息科学与技术学院,辽宁大连116026

出　　处：《电子元件与材料》2014年第2期30-34,共5页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(No.61071044);交通运输部交通应用基础研究资助项目(No.2010-329-225-030)

摘　　要：针对共面波导弯曲结构传输损耗较大的问题,提出了一种改进弯曲结构。该结构引入非对称共面波导弯曲结构以及相应的转换单元,解决了传统共面波导弯曲结构中容易激发奇模信号的问题。结合使用频域和时域的有限差分方法,对弯曲结构的传输系数进行了计算。理论分析和测试结果表明改进后的弯曲结构有效地抑制了奇模信号的传输,降低了共面波导弯曲结构的传输损耗。改进后的弯曲结构具有结构设计简单、易于加工的特点。In order to improve the transmission performance of coplanar waveguide bend, a novel coplanar waveguide bend was proposed, in which an asymmetric eoplanar waveguide bend and corresponding transitions were introduced to reduce the odd mode. The transmission coefficients were calculated using the finite difference methods in frequency domain and time domain. The theory analysis and experimental results show the odd mode can be suppressed efficiently by the improved coplanar waveguide bend, and transmission loss is reduced significantly. The improved bend has simple structure and can be easily fabricated.

关 键 词：非对称共面波导弯曲结构 频域有限差分方法 时域有限差分方法 C模 Ⅱ模 传输损耗 

分 类 号：TN60[电子电信—电路与系统]