摘要
利用电容加载传输线缩短理论,重新设计腔体滤波器的内部结构,利用T型梳状结构实现加载电容,减小腔体尺寸。仿真设计并实际加工出一个中心频率为2.4GHz的带通滤波器。在保持普通腔体滤波器高功率容量、小差损、高带外抑制等优点的基础上有效减小滤波器体积,从而有利于其小型化应用。
Length of transmission line can be shorten by capacity-loading .Using this theory, this paper readjust the internal structure of normal cavity filter. T combline structure is used as the loading capacity to reduce the cavity size in this design .We simulated and make a band pass filter which center frequency is 2.4 GHz. Keeping high power capacity, small loss high outband rejection of normal cavity filter, the capacity-loaded structure can effectively reduce the size of filter.
出处
《电子设计工程》
2012年第24期71-73,78,共4页
Electronic Design Engineering
关键词
小型化
电容加载
梳状结构
腔体
compact
capacity-loaded
combline structure
cavity
