【作者】 李慧哲； 张洪欣；

【Author】 LI Hui-zhe;ZHANG Hong-xin;School of Electronic Engineering, Beijing University of Posts and Telecommunications;

【机构】 北京邮电大学电子工程学院；

【摘要】 本文提出了一款超宽带、小型化的平面螺旋天线。天线通过对螺旋臂进行内外螺旋的螺旋增长率不同但平滑过渡的设计,实现了在超宽带范围内的良好工作特性。天线的工作频段约为1.6GHz-18GHz(略宽于X波段—Ku波段),通过加载锥形臂、谐振环来实现天线口径的小型化,通过对巴伦的设计优化来实现天线剖面高度的小型化,最终天线的口径为68.4mm,剖面高度为27.6mm。与现有工作相比,在模型简化的基础上实现了超宽频带内天线的小型化设计。天线在工作频带内可实现5dBi的增益,轴比小于3dB。更多还原

【Abstract】 The article presents an ultra-wideband, miniaturized planar spiral antenna. By designing the spiral arms with different but smoothly transitioning growth rates for the inner and outer spirals, the antenna achieves excellent performance across an ultra-wideband range. The operating frequency range of the antenna is approximately 1.6GHz-18GHz(slightly wider than the X-band to Ku-band). Miniaturization of the antenna aperture is achieved by loading conical arms and resonant rings, and the miniaturization of the antenna profile height is achieved through optimized balun design. The final antenna has an aperture of 68.4mm and a profile height of 27.6mm. Compared to existing works, this design simplifies the model while achieving miniaturization within the ultra-wideband. The antenna provides a gain of 5dBi and an axial ratio of less than 3dB within the operating band.更多还原