High isolation two-port compact MIMO fractal antenna with Wi-Max and X-band suppression characteristics
High isolation two-port compact MIMO fractal antenna with Wi-Max and X-band suppression characteristics
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DOI：
10.1002/mmce.22021
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发表时间：
2019-10-30
影响因子：
1.7
通讯作者：
Sahu, Sudhakar
中科院分区：
文献类型：
--
作者：
Mohanty, Asutosh;Sahu, Sudhakar
介绍了一种具有良好端口隔离和双频抑制能力的超宽带(UWB)多输入多输出(MIMO)天线。提出的天线模型包括一个独特的分形型辐射贴片，一个公共的地面界面，导致了一种直观的方法；位于中心坐标系的寄生倒置中和存根垂直突出，其延伸部分被扭曲，以增强端口隔离。除此之外，还实现了连续陷波，以实现WiMAX(3.35-4.45 GHz)和X频段(9-10 GHz)的频带陷波。在2.25GHz下，超宽带MIMO天线的总电气面积为0.179(lambda(0))(2)。为了使MIMO和带陷波的对应物合理化，通过电磁(EM)求解器研究了分集性能，并通过电子设计自动化(EDA)求解器进行了相应的电路分析。对样机进行了制作、测试，并与仿真结果进行了比较，吻合较好。从应用的角度充分考虑了天线模型的结果，认为所提出的天线模型的可行性是相当最佳的。
This article features about an ultra-wideband (UWB)-multiple-input multiple-output (MIMO) antenna that exhibits the potentials of good port isolation and dual-band suppression. The proposed antenna model consists of a unique fractal-shaped radiating patch, a common ground interface leading to the incorporation of an intuitive approach; parasitic inverted neutralization stubs, which is located at the central co-ordinate axis system, protruded vertically, where its extension is twisted with a motive of enhancing the port isolation. In addition to that, contiguous notches are implemented to achieve band-notching at WiMAX (3.35-4.45 GHz) and X-band (9-10 GHz). The total electrical area of UWB MIMO antenna is 0.179(lambda(0))(2) at 2.25 GHz. To rationalize the counterparts of MIMO and band-notching, diversity performance is studied through the electromagnetic (EM) solver and the corresponding circuit analysis is pursued through a electronic design automation (EDA) solver. The prototype has been fabricated, measured, and agreed well with the simulated results. The feasibility of proposed antenna model is considered to be quite optimum, with due consideration of its outcomes from applications point-of-view.