典型文献
Antenna Decoupling Based on Characteristic Modes Cancellation
文献摘要：
The demand for a high transmission data rate in 5G leads to the wide application of the multi-in-put,multi-output(MIMO)technique.However,the nar-row design space in mobile phone causes severe unexpec-ted coupling between antenna units and deteriorate the system performance dramatically.In this paper,we focus on the antenna coupling within the MIMO system.Some decoupling techniques are summarized,such as neutraliz-ation line,decoupling network,common/differential mode cancellation,etc.Finally,new decoupling research devel-opments of modal currents cancellation based on the the-ory of characteristic mode are elaborated.Two design ex-amples are shown to validate the benefit of the proposed decoupling method.The-6 dB impedance bandwidth of the head-to-head antenna pair can cover 3.4-3.6 GHz.The isolation level is improved from more than 3.7 dB to more than 13 dB.The tail-to-tail antenna pair can cover 3.3-5 GHz and the isolation level is improved from more than 5 dB to more than 10 dB in the whole operating bandwidth.Both antenna pairs can achieve an envelop correlation coefficient of less than 0.2 and the antenna ef-ficiencies are more than 40％.
文献关键词：
中图分类号：
作者姓名：
CHU Qingxin;ZENG Wenfeng
作者机构：
School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,China
文献出处：
引用格式：
[1]CHU Qingxin;ZENG Wenfeng-.Antenna Decoupling Based on Characteristic Modes Cancellation)[J].电子学报（英文）,2022(06):1138-1145
A类：
unexpec,neutraliz,ficiencies
B类：
Antenna,Decoupling,Based,Characteristic,Modes,Cancellation,demand,high,transmission,data,leads,wide,application,multi,output,MIMO,However,nar,row,design,space,mobile,phone,causes,severe,between,antenna,units,deteriorate,system,performance,dramatically,In,this,paper,focus,within,Some,decoupling,techniques,are,summarized,such,line,network,common,differential,mode,cancellation,etc,Finally,new,research,devel,opments,modal,currents,ory,characteristic,elaborated,Two,amples,shown,validate,benefit,proposed,method,dB,impedance,bandwidth,head,cover,GHz,isolation,level,improved,from,more,than,tail,whole,operating,Both,pairs,achieve,envelop,correlation,coefficient,less
AB值：
0.526056
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