一种宽带一分四Wilkinson功分器的设计与实现  

Design and Implementation of a Broadband One-four Wilkinson Power Divider

作　　者：王晓鹏 刘畅 孙泽月 陈林 姚武生 WANG Xiaopeng;LIU Chang;SUN Zeyue;CHEN Lin;YAO Wusheng(TeraFuture LAB,Brainware Terahertz Information Technology Co.,Ltd.,Hefei 230088,China;The 38th Research Institute of CETC,Hefei 230088,China)

机构地区：[1]博微太赫兹信息科技有限公司太未来实验室,安徽合肥230088 [2]中国电子科技集团公司第三十八研究所,安徽合肥230088

出　　处：《无线电工程》2021年第1期63-68,共6页Radio Engineering

摘　　要：对传统微带功分器的设计方式进行改进,利用薄膜芯片电阻代替传统电阻,工作至Ka波段也可保证较好的隔离度性能。利用薄膜芯片电阻制作了一款宽带一分四Wilkinson功分器,采用两级一分二功分器来实现一分四,每一级一分二功分器采用2节的Wilkinson功分器来实现。同时为了降低功分器的各端口在高频段下的回波损耗,功分器的各端口采用了空气腔的补偿方式。测试结果显示,在工作频段19~31 GHz内,功分器的各端口输出驻波小于1.6,输入驻波小于1.6,插入损耗小于10 dB,相邻端口之间的隔离度大于19 dB。The design of traditional microstrip power divider is improved.The thin film chip resistor is used to replace the traditional resistor to make it work in Ka band,which can also ensure better isolation performance.A one-four Wilkinson power divider is fabricated by using thin film chip resistors.It uses two-stage one-two power divider to realize one-four,and two-section Wilkinson power divider to realize each stage one-two-power divider.At the same time,in order to reduce the return loss of each port of the power divider in the high frequency band,each port of the power divider adopts the compensation method of air cavity.The test results show that the output VSWR of each port is less than 1.6,the input VSWR is less than 1.6,the insertion loss is less than 10 dB and the isolation between adjacent ports is greater than 19 dB in the working frequency range of 19~31 GHz.

关 键 词：薄膜芯片电阻 KA波段 一分四 宽带 WILKINSON功分器 空气腔 

分 类 号：TN626[电子电信—电路与系统]