| 一种具有双缝隙结构的双频宽带MIMO天线 |
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| 引用本文： | 刘志伟,结顺利,吴喜亮,叶 芃,胡 承,丁志清. 一种具有双缝隙结构的双频宽带MIMO天线[J]. 太赫兹科学与电子信息学报, 2018, 16(6): 1048-1053 |
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| 作者姓名： | 刘志伟 结顺利 吴喜亮 叶 芃 胡 承 丁志清 |
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| 作者单位： | Department of Information Engineering，East China Jiaotong University，Nanchang Jiangxi 330013，China,Department of Information Engineering，East China Jiaotong University，Nanchang Jiangxi 330013，China,Department of Information Engineering，East China Jiaotong University，Nanchang Jiangxi 330013，China,Department of Information Engineering，East China Jiaotong University，Nanchang Jiangxi 330013，China,Department of Information Engineering，East China Jiaotong University，Nanchang Jiangxi 330013，China and Department of Information Engineering，East China Jiaotong University，Nanchang Jiangxi 330013，China |
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| 基金项目： | 国家自然科学基金资助项目(61601185)；江西省自然科学基金资助项目(20171ACB21040；20161BAB202062)；江西省教育厅科技资助项目(GJJ160533) |
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| 摘 要： | 设计一种双频宽带多输入多输出(MIMO)天线。天线采用微带线耦合馈电，在天线的表面开有圆环形缝隙，把宽缝隙和窄缝隙结合到一起，因此在辐射体上同时存在2种缝隙结构；天线采用双面结构，带宽范围为1.7~2.33 GHz和3.2~3.9 GHz，2个频带的带宽分别为630 MHz和700 MHz，可用于移动通信的DCS(1 710~1 880 MHz)、PCS(1 850~1 990 MHz)、UMTS(1 920~2 170 MHz)以及WIMAX(3.3~3.6 GHz)。天线在低频段的最大增益为3.6 dB，在高频段的最大增益为5.1 dB，隔离度在-20 dB以下，符合MIMO天线的设计需求。
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| 关 键 词： | 双频宽带；多输入多输出；耦合；增益 |
| 收稿时间： | 2017-09-08 |
| 修稿时间： | 2017-10-29 |
A dual-band broadband MIMO antenna with double gap |
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| LIU Zhiwei,JIE Shunli,WU Xiliang,YE Peng,HU Cheng and DING Zhiqing. A dual-band broadband MIMO antenna with double gap[J]. Journal of Terahertz Science and Electronic Information Technology, 2018, 16(6): 1048-1053 |
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| Authors: | LIU Zhiwei JIE Shunli WU Xiliang YE Peng HU Cheng DING Zhiqing |
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| Abstract: | A dual-band broadband Multiple-Input Multiple-Output(MIMO) antenna is proposed. The antenna is coupled fed by microstrip line and has an annular aperture on the surface. The wide gap and narrow gap is combined together, so there are two kinds of gap structures on the radiator at the same time. The antenna has a double-sided structure. The bandwidth range of the antenna is 1.7-2.33 GHz and 3.2-3.9 GHz, the bandwidth of the two frequency bands is 630 MHz and 700 MHz respectively, which can be used for DCS(1 710-1 880 MHz), PCS(1 850-1 990 MHz), UMTS(1 920-2 170 MHz) and WIMAX (3.3-3.6 GHz) in the mobile communication. The maximum gain of the antenna is 3.6 dB in the low frequency band, 5.1 dB in the high frequency band, and the isolation is below -20 dB, which conforms to the design requirements of the MIMO antenna. |
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