集成电路与嵌入式系统2024，Vol.24Issue(2)：50-56,7.
基于横向耦合和正交耦合的基片集成波导超宽阻带滤波功分器
Ultra wide stopband substrate integrated waveguide filter power divider based on the lateral coupling and orthogonal coupling
摘要
Abstract
Substrate integrated waveguide(SIW)filter power dividers(FPDs)are widely used in communication systems.Similar to tra-ditional waveguide resonators,SIW resonators contain numerous transmission modes,which makes the wide stopband characteristics of SIW FPDs difficult to achieve.In this paper,a substrate integrated waveguide filter power divider with ultra-wide resistance implemented by electric excitation is designed.Specifically,a forth-order substrate integrated waveguide filter power divider based on electromagnetic alternating coupling topology with electrical input and electrical output ports is proposed.The lateral coupling is achieved by opening a window on the side of the resonator to achieve magnetic coupling,and the longitudinal coupling is achieved by etching an S-slot line in the coupling window between two adjacent cavities.Multiple higher-order modes can be suppressed through the orthogonal transmission path,so that the simulation and measurement results show that the out-of-band suppression effect of the filter power divider with a center frequency of 35.5 GHz is better than-20 dB respectively in the stopband bandwidths greater than 9f0 and 3.1f0.The experimen-tal results are in good agreement with the simulation results.关键词
基片集成波导滤波功分器/宽阻带/横向耦合/正交耦合/电磁混合耦合Key words
substrate integrated waveguide(SIW)filter power divider(FPD)/wide stopband/lateral coupling/orthogonal coupling/elec-tromagnetic hybrid coupling分类
信息技术与安全科学引用本文复制引用
范晨晖,刘晓贤,刘诺,朱樟明..基于横向耦合和正交耦合的基片集成波导超宽阻带滤波功分器[J].集成电路与嵌入式系统,2024,24(2):50-56,7.基金项目
国家重点研究与发展计划资助项目(2022YFB4401302). （2022YFB4401302）
