一种简单的高温超导连续通带双工器设计  

A Simple Design of HTS Contiguous-Band Diplexer

作　　者：宁俊松[1] 罗正祥[1] 羊恺[1] 补世荣[1] 

机构地区：[1]电子科技大学光电学院,四川成都610054

出　　处：《真空电子技术》2009年第1期1-3,共3页Vacuum Electronics

摘　　要：在双抛LaAlO3衬底上外延生长的钇系高温超导薄膜YBCO的基片上,设计并制作一个四级高温超导连续通带双工器(工作频率3.0～3.5GHz和3.5～4.0GHz),与常规金属材料的双工器相比,体积减少3/4,插损减少2dB。在液氮温区77K时,测试结果为:通带内插损小于0.8dB,通带间带外抑制大于30dB通带中心频率。为近一步研制高温超导多工器提供了很好的借鉴,对将来高温超导信道化接收机系统的研究和设计具有重要的意义。A high temperature superconducting（HTS） contiguous-band diplexer was designed and fabricated.The HTS contiguous-band diplexer was made using 2-inch-diameter LaA1o3 wafers coated with epitaxial thin film YBCO on both sides,and was made up of two 4-pole Singly-Terminated low-pass prototype passband channel filters which were connected in parallel.Its operation frequency was centered at 3.25 GHz and 3.75 GHz with 500-MHz-wide channels.The HTS diplexer which operated at 77 K shows excellent performance.The insertion loss in the pass-band is less than 0.8 dB and the rejection between per channel is greater than 30 dB.In comparison with the conventional diplexer,the HTS diplexer has less than 2 dB insertion loss and less than 3/4 size.This design concept can be applied in the design of HTS multiplexer and the future HTS ESM channeliser system

关 键 词：高温超导 连续通带双工器 多工器 信道化接收机 

分 类 号：TM26[一般工业技术—材料科学与工程]