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为了避免如WiMAX,C波段和WLAN窄带通信系统对超宽带通信系统的影响,设计了1款新颖的具有3带阻特性的超宽带单极子天线.天线采用矩形贴片作为辐射单元,通过在贴片上分别制作倒I形、倒U形和十字形开槽结构来实现3带阻特性.天线结构紧凑,尺寸仅为20×25×1.6 mm~3.建立天线模型,并对其进行仿真和优化.研究表明,天线带宽为3.1-10.81 GHz,且在WiMAX、C波段和WLAN等3个频段产生良好的带阻特性,且在工作频段内有良好的辐射方向特性.
In order to avoid the impact of WiMAX narrowband communication system such as WiMAX, C-band and WLAN on ultra-wideband communication system, a novel ultra-wideband monopole antenna with 3 band-stop characteristics is designed. The antenna uses a rectangular patch as a radiating element, An inverted I-shaped, an inverted U-shaped and a cross-shaped slotted structure are respectively fabricated on the chip to achieve the 3-band resistive characteristics. The antenna has a compact structure with a size of only 20 × 25 × 1.6 mm 3. An antenna model is established and simulated And optimization.The research shows that the antenna bandwidth is 3.1-10.81 GHz, and has good band-stop characteristics in three frequency bands of WiMAX, C-band and WLAN, and has good radiation direction characteristics in the working frequency band.