| 摘要: |
| 设计了一种应用于2.4/5.8 GHz双频段四通道多输入多输出（Multiple-Input Multiple-Output，MIMO）无线局域网（Wireless Local Area Network，WLAN）的波束切换阵列天线。该天线具有16个定向波束，每4个部分重叠的定向波束形成一个通道，因此具有四通道MIMO通信能力。在每一个通道中，用于辐射定向波束的4个天线单元是旋转对称的，通过动态地切换定向波束，所有通道都可以实现良好的全向覆盖。加工了一个天线样件进行测试，结果表明定向波束的峰值增益达到了9.9 dBi，所有通道的水平面波动都不超过3.3 dB。 |
| 关键词: 无线局域网（WLAN） 四通道MIMO 阵列天线 全向覆盖 |
| DOI：10.20079/j.issn.1001-893x.260117002 |
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| 基金项目: |
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| A 2.4/5.8 GHz Dual-band Four-channel MIMO Switched-beam Array Antenna |
| TAO Sihong |
| (Southwest China Institute of Electronic Technology，Chengdu 610036，China) |
| Abstract: |
| A beam-switching array antenna applied to a 2.4/5.8 GHz dual-band four-channel multiple-input multiple-output(MIMO) wireless local area network(WLAN) is designed.The antenna has 16 directional beams，with every four partially overlapping directional beams forming a channel.Therefore，the antenna has four-channel MIMO communication capability.In each channel，the four antenna elements used to radiate the directional beams are rotationally symmetrical.By dynamically switching the directional beams，all channels can achieve good omnidirectional coverage.Finally，an antenna prototype is fabricated and tested.The test results show that the peak gain of the directional beams reaches 9.9 dBi，and the horizontal plane fluctuation of all channels does not exceed 3.3 dB. |
| Key words: wireless local area network(WLAN) four-channel MIMO array antenna omnidirectional coverage |
《电讯技术》编辑部 