摘要
为了提高共面波导与槽线连接的灵活性，并展宽其带宽，该文提出一种超宽带非对称共面波导-槽线转接器结构。利用时域有限差分法，基于PML吸收边界条件，计算了非对称共面波导-槽线转接器在1～12GHz的S参数，分析了非对称共面波导槽宽比对转接器性能的影响。从计算结果可以看出，非对称共面波导槽宽比对转接器性能的影响呈现出一定的规律性，从而得出非对称共面波导结构与槽线的连接，在设计灵活性、阻抗匹配及带宽展宽方面均优于对称共面波导-槽线转接器。
A novel UWB asymmetric CPW-slotline （ACPW-s proposed to transform electromagnetic energy between ACPW lotline） transition is and slotline. The Sparameters of ACPW-slotline transition is calculated over the frequency range of 1-12 GHz using finite-difference time-domain （FDTD） method based on PML absorbing boundary condition. The results show that the ratio of slot width of ACPW has great effect on the performance of ACPW-slotline transition. Compared with symmetric CPW-slotline transition, impendence matching of the proposed transition is improved, the bandwidth is broadened, and the design is more flexible.
出处
《电波科学学报》
EI
CSCD
北大核心
2010年第3期559-563,共5页
Chinese Journal of Radio Science
基金
中国博士后科学基金项目(20080431134)
国家自然科学基金资助项目(60771032)
