摘要
基于同轴腔滤波器的基本理论,运用综合设计方法计算出一种中心频率为2.160GHz、带宽为20MHz的用于3G移动通信的七同轴腔滤波器腔体的结构尺寸,并计算出腔间的耦合系数;再应用微波三维电磁仿真软件HFSS仿真得出的腔间耦合系数和耦合孔大小的关系曲线,得到了耦合孔半径尺寸;调试实测结果符合设计预期,并说明了实际调试时的注意因素。
The structure sizes of coaxial RF filters′ cavities are calculated by conventional method based on coaxial filters′ basic theory.The filter with 2.160 GHz center frequency and 20 MHz bandwidth is used in base stations of 3G mobile communication.The diameters of coupling apertures between the cavities are acquired by simulating the relationship between coupling diameter aperture and coupling coefficient with 3D electromagnetism simulation software HFSS.Actual test result of frequency response achieves the desired prospects,and some attentive factors in testing are illuminated.
出处
《电讯技术》
北大核心
2012年第10期1648-1651,共4页
Telecommunication Engineering
基金
苏州市职业大学校级科研课题资助项目(SZDG4-11008)~~
关键词
3G移动通信
基站
同轴腔
射频带通滤波器
综合设计
3G mobile communication
base station
coaxial cavity
RF band pass filter
synthetical design
