小型化电容加载腔体滤波器设计

小型化电容加载腔体滤波器设计

内容简介：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。

Abstract：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.

作者：梁骏,

关键词：小型化, 电容加载, 梳状结构, 腔体