1.25 GHz的平行耦合微带滤波器设计  

Parallel Coupled Microstrip Filter Design at 1.25 GHz

作　　者：李嘉辉 王凯[1,2] 闫浩 马军[1,2] 于涵 LI Jiahui;WANG Kai;YAN Hao;MA Jun;YU Han(Xinjiang Astronomical Observatory,Chinese Academy of Sciences,Urumqi 830011,China;Xinjiang Key Laboratory of Microwave Technology,Urumqi 830011,China)

机构地区：[1]中国科学院新疆天文台,乌鲁木齐830011 [2]新疆微波技术重点实验室,乌鲁木齐830011

出　　处：《微波学报》2024年第S1期132-135,共4页Journal of Microwaves

基　　金：新疆维吾尔自治区自然科学基金(2022D01A358);国家自然科学基金(11973078);中国科学院天文台站设备更新及重大仪器设备运行专项经费资助

摘　　要：本文旨在设计一个1.25GHz平行耦合微带滤波器。该滤波器采用微带线技术,通过精确控制线宽和间隙,实现信号的有效过滤。在设计过程中,将注重提高选择性和抑制谐波,以优化观测信号的质量。滤波器的设计考虑了实际应用场景,具有良好的稳定性和可靠性。经验证,该滤波器在1.25GHz处具有符合要求的传输特性和较低的插入损耗。这款平行耦合微带滤波器为射电望远镜中的接收天线提供了一种高性能、高可靠性的信号处理解决方案,有助于提升观测数据的质量和准确性。This paper aims to design a 1.25GHz parallel coupled microstrip filter.The filter uses microstrip line technology,and realizes effective signal filtering by accurately controlling the line width and gap.During the design process,attention will be paid to improving selectivity and suppressing harmonics to optimize the quality of the observed signal.The filter is designed considering practical application scenarios and has good stability and reliability.It has been verified that the filter has the required transmission characteristics and low insertion loss at 1.25GHz.The parallel coupled microstrip filter provides a high performance and high reliability signal processing solution for the PAF antenna in radio telescopes,helping to improve the quality and accuracy of the observed data.

关 键 词：耦合 微带滤波器 带通 射频技术 

分 类 号：TN713[电子电信—电路与系统] P111.44[天文地球—天文学]