基于特征模的可穿戴MIMO天线
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- 英文论文题名：Wearable MIMO Antennas Using Characteristic Mode
- 论文作者：张林光 ; 王会霞 ; 刘豪
- 英文论文作者：ZHANG Lin-guang ; WANG Hui-xia ; LIU Hao ; School of Electrical Engineering ; Xidian University
- 年：2016
- 作者机构：西安电子科技大学电子工程学院;
- 论文关键词：特征模 ; Kapton polyimide ; 可穿戴单极子天线 ; 多输入多输出 ; BSRR
- 英文论文关键词：characteristic mode ; Kapton polyimide ; wearable monopole antenna ; MIMO ; BSRR
- 会议召开时间：2016-08-17
- 会议录名称：2016年全国军事微波、太赫兹、电磁兼容技术学术会议论文集
- 语种：中文
- 分类号：TN828
- 学会代码：WBXB
- 会议名称：2016年全国军事微波、太赫兹、电磁兼容技术学术会议
- 会议地点：中国陕西西安
- 主办单位：中国电子学会微波分会、天线与微波技术重点实验室
- 学会名称：《微波学报》编辑部
- 页数：4
- 文件大小：563k
- 原文格式：D
- 会议级别：全国
摘要
传统的矩形单极子天线带宽无法满足越来越多的无线通信设备的需求。基于特征模理论,通过分析天线的特征值,把表面电流分解成相应的特征电流。它可以从物理本质上研究天线的辐射机理,从而有效的指导天线设计。改进了天线结构和馈电方法,采用柔性Kapton Polyimide基板材料,设计了可穿戴的单极子天线,并用于多输入多输出天线系统,以保证信息传输的可靠性。为了降低耦合,提出了桥连开口谐振环(Bridged Split Ring Resonator,BSRR)结构,优化了它与天线的间距。仿真结果表明,S11<-10d B时的带宽为2.45GHz-13.19GHz,带宽覆盖FCC规定的UWB频段。与不加BSRR结构相比,MIMO天线之间的耦合降低了15.4785d B。
Conventional rectangular monopole antennas cannot meet the need of a growing number of wireless communication devices. Surface currents can be decomposed to certain characteristic currents by analyzing its eigenvalues based on characteristic mode theory. This theory provides a very clear insight into the physically operating mechanism of this type of antennas and it helps to antenna design. Wearable monopole antennas based on flexible substrate material Kapton polyimide are presented and can be used for MIMO antenna system to obtain accuracy transmitted information. To induce mutual couple between antennas, BSRR(Bridged Split Ring Resonator) structure is given and its distance from antennas is optimized. Simulating result shows that impedance bandwidth is 2.45 GHz – 13.19 GHz when S11<-10 d B, which covers UWB band licensed by FCC. BSRR structure efficiently induces the 15.4785 d B coupling between MIMO antennas compared with BSRR-free.
Conventional rectangular monopole antennas cannot meet the need of a growing number of wireless communication devices. Surface currents can be decomposed to certain characteristic currents by analyzing its eigenvalues based on characteristic mode theory. This theory provides a very clear insight into the physically operating mechanism of this type of antennas and it helps to antenna design. Wearable monopole antennas based on flexible substrate material Kapton polyimide are presented and can be used for MIMO antenna system to obtain accuracy transmitted information. To induce mutual couple between antennas, BSRR(Bridged Split Ring Resonator) structure is given and its distance from antennas is optimized. Simulating result shows that impedance bandwidth is 2.45 GHz – 13.19 GHz when S11<-10 d B, which covers UWB band licensed by FCC. BSRR structure efficiently induces the 15.4785 d B coupling between MIMO antennas compared with BSRR-free.
引文
[1]N.Rais,P.J.Soh.Hall.A review of wearable antenna[J].IEEE Transactions on Antennas Propagation,2009,pp.225-228.
[2]P.S.Hall,Y.Hao,Y.I.Nechayev.Antennas and propagation for on-body communication systems[J].IEEE Transactions on Antennas Propagation,2007,49(3):41-58.
[3]P.Salonen,J.Kim,and Y.Rahmat Samii.Dual-band E-shaped patch wearable textile antenna.IEEE Antennas and Propagation Society International Symposium,2005,1A:466-469.
[4]H.A.Rahim,et al.Effect of different substrate materials on a wearable textile monopole antenna.Wireless Technology and Applications(ISWTA),2012,pp.245-247.
[5]A.Priya.A review of textile and cloth fabric wearable antennas.International Journal of Computer Application,2015,116(17):1-5.
[6]R.Harrington and J.Mautz.Theory of characteristic modes for conducting bodies[J].IEEE Transactions on Antennas Propagation,1971,19(5):622-628.
[7]邓超,谢拥军.共面波导边缘结构的平面单极子天线[J].重庆大学学报,2010,33(12):114-118.
[8]Haider Raad.A novel u-negative meta-material with enhanced rejection bandwidth[J].Proceedings of the 38th European Microwave Conference,2008,6(2):137-144.
[2]P.S.Hall,Y.Hao,Y.I.Nechayev.Antennas and propagation for on-body communication systems[J].IEEE Transactions on Antennas Propagation,2007,49(3):41-58.
[3]P.Salonen,J.Kim,and Y.Rahmat Samii.Dual-band E-shaped patch wearable textile antenna.IEEE Antennas and Propagation Society International Symposium,2005,1A:466-469.
[4]H.A.Rahim,et al.Effect of different substrate materials on a wearable textile monopole antenna.Wireless Technology and Applications(ISWTA),2012,pp.245-247.
[5]A.Priya.A review of textile and cloth fabric wearable antennas.International Journal of Computer Application,2015,116(17):1-5.
[6]R.Harrington and J.Mautz.Theory of characteristic modes for conducting bodies[J].IEEE Transactions on Antennas Propagation,1971,19(5):622-628.
[7]邓超,谢拥军.共面波导边缘结构的平面单极子天线[J].重庆大学学报,2010,33(12):114-118.
[8]Haider Raad.A novel u-negative meta-material with enhanced rejection bandwidth[J].Proceedings of the 38th European Microwave Conference,2008,6(2):137-144.