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A Compact CPW-Fed MIMO Antenna with Band-Notched Characteristic for UWB System

机译:具有UWB系统带隙特性的紧凑CPW馈送MIMO天线

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摘要

A compact coplanar waveguide (CPW)-fed multiple-input-multiple-output (MIMO) band-notched antenna with a small size of 20x36x0.8 mm(3) for ultrawideband (UWB) system is proposed in this paper. The two rectangular monopole (RM) elements fed by CPW are printed on the FR4 substrate. To improve impedance bandwidth and the isolation, a T-shaped stub structure is positioned in the middle of two RM elements. The band-notched characteristic is achieved by etching a U-shaped loop resonator slot on each RM element. The S-11 reflection coefficients, S-12 coupling isolation, radiation pattern, peak gain and radiation efficiency of the MIMO antenna are measured. The MIMO performance of the proposed MIMO antenna is analyzed and evaluated by the envelope correlation coefficient (ECC) and total active reflection coefficient (TARC).
机译:本文提出了一种紧凑的共面波导(CPW)馈电的多输入多输出(MIMO)带槽天线,其尺寸为20x36x0.8 mm(3),适用于超宽带(UWB)系统。 CPW馈送的两个矩形单极(RM)元件被印刷在FR4基板上。为了提高阻抗带宽和隔离度,在两个RM元件的中间放置了一个T形短截线结构。通过在每个RM元件上蚀刻一个U形环形谐振器槽来获得带隙特性。测量MIMO天线的S-11反射系数,S-12耦合隔离度,辐射方向图,峰值增益和辐射效率。通过包络相关系数(ECC)和总有源反射系数(TARC)对所提出的MIMO天线的MIMO性能进行了分析和评估。

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