A compact antenna module with a single band notch at wireless local area network (WLAN) (5.725–5.825 GHz) for ultra-wideband (UWB) multiple input multiple output (MIMO) applications is proposed. Proposed antenna which acquires size of 0.299 λ × 0.413 λ × 0.005 λ mm3 at 3.1 GHz consists of two symmetrical radiators placed side by side on global merchandise link (GML) 1000 substrate (εr = 3.2, tan δ = 0.004). Isolation between the antenna elements is >18 dB in the whole UWB band, which is achieved by introducing the vertical stub and H-slot between the monopole radiators in the ground plane. The simulated and measured results of the antenna system are in good agreement. The proposed antenna covers entire UWB with impedance bandwidth (|S11| < −15 dB) from 3.1 to 11 GHz except at WLAN notched band. The designed antenna module bears low envelope correlation coefficient and minimal multiplexing efficiency hence fulfilling criteria suitable for various wireless MIMO applications.

中文翻译：

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用于 UWB MIMO 应用的具有高隔离度的紧凑型带陷天线

提出了一种用于超宽带 (UWB) 多输入多输出 (MIMO) 应用的无线局域网 (WLAN) (5.725–5.825 GHz) 上具有单频段陷波的紧凑型天线模块。建议的天线尺寸为 0.299λ× 0.413λ× 0.005λ毫米3在 3.1 GHz 由两个对称的辐射器并排放置在全球商品链接 (GML) 1000 基板上 (εr= 3.2，棕褐色δ= 0.004)。在整个 UWB 频带中，天线元件之间的隔离度 > 18 dB，这是通过在接地平面中的单极辐射器之间引入垂直短截线和 H 槽来实现的。天线系统的仿真结果与实测结果吻合良好。所提出的天线覆盖整个 UWB，具有阻抗带宽（|小号11| < -15 dB) 从 3.1 到 11 GHz，WLAN 陷波频段除外。所设计的天线模块具有低包络相关系数和最小的复用效率，因此满足适用于各种无线 MIMO 应用的标准。