生长方形缝隙分形阵列超宽频带天线设计

Design of the Growing Square Slot Fractal Array Ultra Wideband Antenna

本文针对微波多频段兼容系统对天线的性能要求,将生长方形缝隙结构、“嵌入式”缝隙分形迭代结构、矩形阵列天线、相对介电常数渐变薄膜、钽铌酸钾薄片、铁基纳米晶合金镀层、石墨烯导电墨水等一系列先进的技术和材料有机结合,设计了一款生长方形缝隙分形阵列超宽频带天线。实测结果表明,该款天线具有稳定可靠的超宽频带辐射能力,能够抵抗外界电磁信号干扰,性能冗余充足,尺寸小,辐射强度高,能够完全覆盖第二代至第五代移动通信频段、射频识别频段、超宽带通信频段和移动数字电视频段,在即将到来的微波频段多网合一时代有巨大的应用前景。

According to the performance requirements of the antennas for the microwave multi band com-patible system,the present paper originally combines growing square slot structure,embedded slot fractal iterative structure,rectangular array antenna,relative dielectric constant gradual thin film,potassium tantalum niobate thin film,Fe-based nanocrystalline alloy coating and graphene conductive ink,to design a growing square slot fractal array ultra wideband antenna.The result of test indicates that this antenna has stable and reliable ultra-wideband radiation capability,can resist external electromagnetic signal interference,and has sufficient redundancy,small size and high radiation intensity.This antenna completely covered all working frequency bands of the se-cond generation to the fifth generation mobile communication,the frequency bands of the radio frequency identification system,the frequency band of the ultra wideband system,and the fre-quency band of the mobile digital TV system.This antenna will have great application prospects in the coming era of microwave band multi-network integration.