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Compact Electronically Reconfigurable WiMAX Band- Notched Ultra-wideband MIMO Antenna

机译:紧凑的电子可重新配置WiMAX带槽超宽带MIMO天线

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A low-profile electronically reconfigurable WiMAX band-notched dual port multiple-input multipleoutput (MIMO) antenna design for ultra-wideband application has been presented. The two symmetrical MIMO antenna elements proposed in this work exhibit a good impedance match (VSWR ≤ 2) over frequency band of 3 to 12 GHz, while offering high isolation. The decoupling structure is used to enhance the isolation level above 25 dB over the entire UWB spectrum. The reconfigurable band notch characteristic in MIMO design is achieved by inserting PIN diodes along the filtering ?-shaped slotted structure in main radiators. Notch appears for WiMAX 3.5 GHz (3.2 - 3.8 GHz) frequency band by switching the PIN diode to ‘ON’ state. The proposed antenna is fabricated and measured, the results suggest its appropriateness for UWB applications where WiMAX band notch characteristics may be desired on-demand.
机译:提出了一种用于超宽带应用的薄型电子可重构WiMAX带隙双端口多输入多输出(MIMO)天线设计。这项工作中提出的两个对称MIMO天线元件在3至12 GHz的频带上具有良好的阻抗匹配(VSWR≤2),同时提供了高隔离度。去耦结构用于在整个UWB频谱上将隔离级别提高到25 dB以上。 MIMO设计中的可重构带陷波特性是通过将PIN二极管沿着主辐射器中的滤波β形缝隙结构插入而实现的。通过将PIN二极管切换到“ ON”状态,在WiMAX 3.5 GHz(3.2-3.8 GHz)频带上出现陷波。所提出的天线已经过制造和测量,结果表明该天线适用于可能需要按需提供WiMAX频段陷波特性的UWB应用。

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