一种自带端口焊盘的半开放式表贴微带隔离器  

A Semi-open Surface Mounted Microstrip Isolator with Self-contained Welding Pads at Each Port

作　　者：薛晓波 XUE Xiao-bo(Nanjing Glarun Microwave Device Co.,Ltd,Nanjing 211100,China)

机构地区：[1]南京国睿微波器件有限公司,南京211100

出　　处：《微波学报》2022年第6期58-60,共3页Journal of Microwaves

摘　　要：不断发展的雷达技术对元器件的要求越来越高。就微波铁氧体器件而言,要求做到小型化、平面化、薄膜化、宽频带、小插损、高隔离、低成本、批产能力强等。微带形式的微波铁氧体器件是满足此类要求的首选,尤其表贴类微波器件,在集成度和可靠性上相比传统键合类器件优势显著。文中采用HFSS软件仿真结合VNA测试技术,成功研制出了一种半开放式的表贴微带隔离器,其创新点在于器件背面两个端口处自带金属焊盘。相比表贴器件的传统端口植球技术,该设计减少了装配时的特殊工艺过程,保证了端口与接地面的共面度,降低了端口变形和氧化风险,简化了客户使用时的安装过程。该器件端口驻波VSWR≤1.20,插入损耗S21≤0.4 dB,隔离度S12≥25 dB,工作在X波段。The development of radar technology makes higher requests for components.Microwave ferrite device is required to be miniaturized,planarized,thin filmed;wide frequency band,little insertion loss,high isolation;low cost and strong lot production capability.The microstrip microwave ferrite device is the first choice to meet these requirements,especially,the surface mounted microstrip device has significant advantages in integration and reliability compared with the traditional bonded devices.This paper describes a surface mounted microstrip isolator,using HFSS simulation software and VNA measurement techniques,a kind of surface mounted microstrip isolators in semi-open structure is successfully realized,the innovation of this paper is the isolator with two metallic welding pads on the back.Compared with the traditional ball planting technology for surface mounted isolators,the design reduces the special processes of assembling segment,ensures the coplanarity of the ports and the ground,declines the risk of deformation and oxidation for wave ports,simplifies the installation process for the customers.The isolator features two ports VSWR of≤1.20,insertion loss of≤0.4 dB for S21,isolation of≥25 dB for S12,and it works at X-band.

关 键 词：表贴微带 半开放式结构 自带端口焊盘 

分 类 号：TN015[电子电信—物理电子学] TN957