A wideband 4-port MIMO antenna using leaf-shaped notch antennas
A wideband 4-port MIMO antenna using leaf-shaped notch antennas
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DOI：
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发表时间：
2016-10
期刊：
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通讯作者：
J. Motohashi;M. Yamamoto
中科院分区：
文献类型：
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作者：
J. Motohashi;M. Yamamoto
本研究提出一种适用于多输入多输出应用的宽频四端口天线阵列设计。在所设计的工作频率范围为7.25 ~ 10.25GHz的天线阵中，采用了叶形陷波天线作为辐射单元。为了增强天线元件之间的隔离，辐射元件被布置在基板上，使得相邻元件的极化彼此正交。利用时域有限差分法（FDTD）分析了所设计天线阵列的特性。在上述频率范围内，所设计的天线反射系数小于-10dB，端口间互耦小于-19dB。
This study presents a design of a wideband 4-port antenna array which is useful for MIMO applications. In the designed antenna array that operates over the frequency range from 7.25 to 10.25GHz, leaf-shaped notch antennas are employed as the radiating elements. In order to enhance the isolation between antenna elements, the radiating elements are arranged on the substrate such that polarizations of adjacent elements are orthogonal to each other. Characteristics of the designed antenna array are evaluated by the finite-difference time domain (FDTD) analysis. Over the above-mentioned frequency range, the designed antenna has the reflection coefficient of less than −10dB and the mutual coupling between ports below −19dB.