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设计了一款新型的具有陷波特性的超宽带单极子天线。该天线的带宽为3.1~12.0 GHz,通过在矩形辐射贴片上制作出对称的梯形结构、中心加载倒C形缝隙、矩形开槽,并将窄矩形接地板切除两个边角,制作矩形开槽结构,使得天线在3.3~5.35 GHz频段产生陷波特性。该天线结构紧凑,尺寸仅为20 mm×25 mm×1.0 mm。建立天线模型,并对其进行仿真和优化。研究表明,天线在Wi MAX频段、C波段、数字微波通信、大容量微波通信和部分WLAN等多个频段产生良好的陷波特性,且在工作频段内有良好的性能和辐射方向特性。
A new type of UWB monopole antenna with notch characteristics has been designed. The bandwidth of the antenna is 3.1 ~ 12.0 GHz. Rectangular opening is made by making a symmetrical trapezoid structure on the rectangular radiation patch, loading the inverted C-shaped slit in the center and the rectangular slotting, and cutting the narrow rectangular ground plane by two corners Groove structure, making the antenna in the band 3.3 ~ 5.35 GHz notch characteristics. The antenna is compact and measures only 20 mm × 25 mm × 1.0 mm. Build an antenna model and simulate and optimize it. The research shows that the antenna has good notch characteristics in multiple frequency bands such as Wi MAX band, C band, digital microwave communication, high-capacity microwave communication and some WLANs, and has good performance and radiation direction characteristics in the working frequency band.