Ultrawideband MIMO/Diversity Antennas With a Tree-Like Structure to Enhance Wideband Isolation
Ultrawideband MIMO/Diversity Antennas With a Tree-Like Structure to Enhance Wideband Isolation
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DOI：
10.1109/lawp.2009.2037027
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发表时间：
2009-01-01
影响因子：
4.2
通讯作者：
He, Sailing
中科院分区：
文献类型：
--
作者：
Zhang, Shuai;Ying, Zhinong;He, Sailing
一种紧凑的印刷超宽带（UWB）多输入多输出（MIMO）/分集天线系统（两个元素）的尺寸为35 - 40毫米，工作频率范围为3.1-10.6 GHz的建议。宽带隔离可以通过接地层上的树状结构来实现。分析了树型结构的有效性。测量的S-参数表明，隔离优于16 dB（20 dB的大部分频带）在UWB的3.1-10.6 GHz。测量了天线的辐射方向图、增益和包络相关系数。该天线适用于一些便携式MIMO/分集应用。
A compact printed ultrawideband (UWB) multiple-input-multiple- output (MIMO)/diversity antenna system (of two elements) with a size of 35 40 mm operating at a frequency range of 3.1-10.6 GHz is proposed. The wideband isolation can be achieved through a tree-like structure on the ground plane. The effectiveness of the tree-like structure is analyzed. Measured S-parameters show that the isolation is better than 16 dB (20 dB in most of the band) across the UWB of 3.1-10.6 GHz. The radiation patterns, gain, and envelope correlation coefficient are also measured. The proposed antenna is suitable for some portable MIMO/diversity applications.