Design of a Compact UWB MIMO Antenna without Decoupling Structure
A compact high isolation ultrawideband (UWB) multiple-input-multiple-output (MIMO) antenna is designed. The proposed MIMO antenna consists of a rectangular monopole antenna and a slot antenna fed by two microstrip lines, respectively. To improve the impedance matching, a circular coupling structure...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2018/9685029 |
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| author | Yanjie Wu Kang Ding Bing Zhang Jianfeng Li Duolong Wu Kun Wang |
| author_facet | Yanjie Wu Kang Ding Bing Zhang Jianfeng Li Duolong Wu Kun Wang |
| author_sort | Yanjie Wu |
| collection | DOAJ |
| description | A compact high isolation ultrawideband (UWB) multiple-input-multiple-output (MIMO) antenna is designed. The proposed MIMO antenna consists of a rectangular monopole antenna and a slot antenna fed by two microstrip lines, respectively. To improve the impedance matching, a circular coupling structure is designed to feed the tapered slot antenna. The parasitic resonance introduced by the ground stub helps to extend the impedance bandwidth of monopole antenna at the upper UWB band. Commonly used complex decoupling or coupling structures are eliminated that endow the proposed antenna minimized foot print, which is preferred in mobile handset. Although without decoupling structure, high isolation is obtained between two antenna elements. Simulation and measurement verify the antenna’s desirable performance, showing a broad impedance bandwidth of 3.1–10.6 GHz with |S11| < −10 dB and |S21| < −20 dB over 3.4–10.6 GHz, and |S21| < −18 dB from 3.1–3.4 GHz. |
| format | Article |
| id | doaj-art-74b4d426bc6a45399b8d57de29e08410 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-74b4d426bc6a45399b8d57de29e084102025-02-03T01:01:11ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772018-01-01201810.1155/2018/96850299685029Design of a Compact UWB MIMO Antenna without Decoupling StructureYanjie Wu0Kang Ding1Bing Zhang2Jianfeng Li3Duolong Wu4Kun Wang5School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaNational Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering, PLA University of Science and Technology, Nanjing 210007, ChinaCollege of Electronics and Information Engineering, Sichuan University, Chengdu 610064, ChinaSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Information Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaA compact high isolation ultrawideband (UWB) multiple-input-multiple-output (MIMO) antenna is designed. The proposed MIMO antenna consists of a rectangular monopole antenna and a slot antenna fed by two microstrip lines, respectively. To improve the impedance matching, a circular coupling structure is designed to feed the tapered slot antenna. The parasitic resonance introduced by the ground stub helps to extend the impedance bandwidth of monopole antenna at the upper UWB band. Commonly used complex decoupling or coupling structures are eliminated that endow the proposed antenna minimized foot print, which is preferred in mobile handset. Although without decoupling structure, high isolation is obtained between two antenna elements. Simulation and measurement verify the antenna’s desirable performance, showing a broad impedance bandwidth of 3.1–10.6 GHz with |S11| < −10 dB and |S21| < −20 dB over 3.4–10.6 GHz, and |S21| < −18 dB from 3.1–3.4 GHz.http://dx.doi.org/10.1155/2018/9685029 |
| spellingShingle | Yanjie Wu Kang Ding Bing Zhang Jianfeng Li Duolong Wu Kun Wang Design of a Compact UWB MIMO Antenna without Decoupling Structure International Journal of Antennas and Propagation |
| title | Design of a Compact UWB MIMO Antenna without Decoupling Structure |
| title_full | Design of a Compact UWB MIMO Antenna without Decoupling Structure |
| title_fullStr | Design of a Compact UWB MIMO Antenna without Decoupling Structure |
| title_full_unstemmed | Design of a Compact UWB MIMO Antenna without Decoupling Structure |
| title_short | Design of a Compact UWB MIMO Antenna without Decoupling Structure |
| title_sort | design of a compact uwb mimo antenna without decoupling structure |
| url | http://dx.doi.org/10.1155/2018/9685029 |
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