摘要
基于非谐振节点理论,提出了一种结构紧凑的波导滤波器。通过非谐振节点级联TM双模方腔,利用谐振和非谐振模式使每个腔可产生两个反射和两个传输零点,进而滤波器整体实现N阶N个有限传输零点,而不需要源和负载的直接耦合。据此设计了一个Ku波段波导滤波器,HFSS仿真结果表明,在保证良好性能的情况下,结构设计更为紧凑,体积减小到传统矩形TE双模波导滤波器的1/4。
A compact waveguide filter is introduced in this paper,that is based on the theory of nonresonating nodes.TM dualmode quadrate cavities are cascaded by nonresonating nodes.Such a cavity employs both resonant and nonresonating modes so as to provide two reflection and two transmission zeros.Then the Nth-order filter provides N transmission zeros without the direct coupling between the source and load.A Ku band waveguide filter is designed.The HFSS simulation results indicate that the structure is more compact and the size is the quarter of the rectangle TE dual-mode waveguide filters with excellent performance.
出处
《电子设计工程》
2016年第21期135-137,共3页
Electronic Design Engineering
