【作者】 胡雅婷； 雷霖； 宗显政； 孙胜； 胡俊；

【Author】 Hu Yating;Lei Lin;Zong Xianzheng;Sun Sheng;Hu Jun;University of Electronic Science and Technology of China;

【机构】 电子科技大学；

【摘要】 本文设计了一种带新型巴伦结构的宽带准八木天线。该天线采用微带线进行馈电,通过新型巴伦结构实现微带线到共面带状线的转换,简化了典型八木天线复杂的巴伦结构;在共面带状线和辐射振子相连处以及辐射振子的两端加载了三角型切角,同时引入了三个箭头型引向振子;在反射地板非延长部分的中心两侧加载了两个矩形槽,以进一步增大天线的带宽。由仿真结果可知,天线的-10dB阻抗带宽为5.5～9.0GHz,工作频段上其增益为5.2～8.0dBi,具有宽频带、结构紧凑等良好特性。更多还原

【Abstract】 In this paper, a broadband quasi-Yagi antenna with a new Barron structure is designed.The antenna is fed by microstrip line, and the conversion from microstrip line to coplanar strip line is realized through a new balun structure, which simplifies the complex balun structure of the typical Yagi antenna; At the joint of the coplanar stripline and the radiation vibrator, and at both ends of the radiation vibrator, a triangular chamfer is loaded, and three arrow-shaped lead oscillators are also introduced; Two rectangular slots are loaded on both sides of the center of the non-extended part of the reflective floor, further increasing the bandwidth. The simulation shows that the improved antenna has an impedance bandwidth of-10dB of 5.5～9.0GHz and a gain of 5.2～8.0dBi. It has good characteristics such as broadband and high gain.更多还原