摘要
设计了一种小型化的低温共烧陶瓷(LTCC)滤波器,该滤波器电路由电容耦合的二阶谐振腔组成。设计了该滤波器的三维多层结构,利用组件间的耦合效应,产生一个传输零点,提高了滤波器性能。仿真结果表明,该滤波器中心频率为3.41GHz,相对带宽为5.9%(200MHz),体积为3.8mm×2.8mm×0.8mm,在S波段的通讯,雷达等射频系统有广泛的应用。
The new minitype band-pass filter （BPF） fabricated by low-temperature cofired ceramics （LTCC） was designed. The circuit of this filter was composed of 2-orders resonant cavity by capacitive coupling. The three-dimensional multi-layer structure of this filter was designed, and the adding of a transmission zero improved the performance of this filter. The simulating results show that the center frequency of this filter is 3.41 GHz, and its relative bandwidth is 5.9%（200 MHz）. It has a wide range of application in S-band of communication system and other RF systems with its size of only 3.8 mm × 2.8 mm × 0.8 mm.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2009年第12期33-35,38,共4页
Electronic Components And Materials
基金
国家重大项目基金资助项目(No.5132030301)
