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Design of Quad-Port MIMO/Diversity Antenna with Triple-Band Elimination Characteristics for Super-Wideband Applications

机译:具有三频消除特性的超宽带应用四端口MIMO /分集天线设计

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摘要

A compact, low-profile, coplanar waveguide (CPW)-fed quad-port multiple-input–multiple-output (MIMO)/diversity antenna with triple band-notched (Wi-MAX, WLAN, and X-band) characteristics is proposed for super-wideband (SWB) applications. The proposed design contains four similar truncated–semi-elliptical–self-complementary (TSESC) radiating patches, which are excited through tapered CPW feed lines. A complementary slot matching the radiating patch is introduced in the ground plane of the truncated semi-elliptical antenna element to obtain SWB. The designed MIMO/diversity antenna displays a bandwidth ratio of 31:1 and impedance bandwidth (|S | ≤ − 10 dB) of 1.3–40 GHz. In addition, a complementary split-ring resonator (CSRR) is implanted in the resonating patch to eliminate WLAN (5.5 GHz) and X-band (8.5 GHz) signals from SWB. Further, an L-shaped slit is used to remove Wi-MAX (3.5 GHz) band interferences. The MIMO antenna prototype is fabricated, and a good agreement is achieved between the simulated and experimental outcomes.
机译:提出了一种紧凑,薄型,共面波导(CPW)馈电的四端口多输入多输出(MIMO)/分集天线,具有三频带陷波(Wi-MAX,WLAN和X频带)特性适用于超宽带(SWB)应用。拟议的设计包含四个类似的截短的半椭圆形自互补(TSESC)辐射贴片,它们通过锥形CPW馈线被激发。将与辐射贴片匹配的互补缝隙引入到截短的半椭圆形天线元件的接地平面中,以获得SWB。设计的MIMO /分集天线显示的带宽比为31:1,阻抗带宽(| S |≤− 10 dB)为1.3–40 GHz。此外,在谐振片中植入了一个互补的开环谐振器(CSRR),以消除来自SWB的WLAN(5.5 GHz)和X波段(8.5 GHz)信号。此外,L形缝隙用于消除Wi-MAX(3.5 GHz)频带干扰。制作了MIMO天线原型,并在仿真结果和实验结果之间达成了良好的协议。

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