小型化抗脉冲介质滤波器设计  

Design of Miniaturized Anti-Pulse Dielectric Filter

作　　者：蒋廷利 韦俊杰 马睿 聂谢平 JIANG Tingli;WEI Junjie;MA Rui;NIE Xieping(The 26th Institute of China Electronics Technology Group Corporation,Chongqing 400060,China)

机构地区：[1]中国电子科技集团公司第二十六研究所,重庆400060

出　　处：《压电与声光》2024年第5期664-669,共6页Piezoelectrics & Acoustooptics

摘　　要：传统的大功率腔体、LC滤波器体积较大,不符合在通信设备环境中器件小型化、轻量化的应用需求,因此设计了一款小体积、大功率介质滤波器。该滤波器采用具有高品质因数(Q_(f))值、高介电常数的微波陶瓷材料,在保持滤波器低损耗的前提下缩小其体积。采用三维场路联合仿真并结合参数提取的方法,缩短了设计周期。对功率容量进行分析,通过结构的改进提升了最大场强处介质抗击穿强度,提高了承受高功率脉冲的能力。对所设计的样品进行测试,测试结果表明,在S波段相对带宽14.5%内,带内插损小于0.7 dB,在近端频率点2690 MHz处,抑制大于22 dB;在频率3600~4200 MHz内,抑制大于32 dB,可通过超10 W的功率信号。该介质滤波器尺寸为23 mm×10 mm×10 mm,能够应用于大功率通信系统环境中。The large volume of traditional high-power cavity and LC filters does not meet the miniaturization and lightweight requirements for communication equipment applications.In this paper,a high-power dielectric filter is designed using microwave ceramic material with a high Q_(f) value and a high dielectric constant,significantly reducing the filter size.A three-dimensional field co-simulation is employed,along with parameter extraction,to streamline the design process,and a power capacity analysis is performed.The filter demonstrates characteristics of small size,low loss,high suppression,and pulse resistance,successfully meeting the necessary requirements after production testing.

关 键 词：联合仿真 参数提取 大功率 脉冲 介质滤波器 

分 类 号：TN713[电子电信—电路与系统]