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A Compact Triple-Band Notched MIMO Antenna for UWB Systems

机译:适用于UWB系统的紧凑型三频带槽MIMO天线

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摘要

A miniaturization ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna with triple-notched band function is presented in the paper. There are two similar monopole radiators in the UWB-MIMO system. Based on half-cutting method, the system only occupies 21x27 mm(2). Three inverted L-shaped slots are inserted to get three rejected bands for suppressing interference from 3.5 GHz WiMAX, 5.5 GHz WLAN, and 8.1 GHz X-band. With a T-shaped stub extruding from the ground plane, both impedance bandwidth and port isolation are effectively improved. The proposed antenna covers operating frequency band of 3.1-11 GHz except three notched bands, and has a low port isolation of better than -20 dB. Moreover, good radiation patterns, stable gain and low envelope correlation coefficient (ECC) also ensure that the designed antenna is helpful in UWB systems.
机译:提出了一种具有三陷波带功能的小型化超宽带(UWB)多输入多输出(MIMO)天线。 UWB-MIMO系统中有两个类似的单极辐射器。基于半切割方法,系统仅占用21x27 mm(2)。插入三个倒置的L形槽以获得三个抑制频带,以抑制来自3.5 GHz WiMAX,5.5 GHz WLAN和8.1 GHz X频带的干扰。通过从接地平面伸出T形短截线,可以有效提高阻抗带宽和端口隔离度。拟议的天线覆盖3.1-11 GHz的工作频带(三个陷波频带除外),并且端口隔离度低于-20 dB。此外,良好的辐射方向图,稳定的增益和较低的包络相关系数(ECC)也确保了所设计的天线在UWB系统中很有用。

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