【作者】 黄玮；

【导师】 李征帆；

【作者基本信息】 上海交通大学 ， 电磁场与微波技术， 2006， 硕士

【摘要】 本文综述了迅速发展中的微带天线技术的新进展。侧重评述了单层单一馈电的微带天线小型化、多频段、圆极化等技术的进展。文中提出了一种在圆形贴片微带天线上实现双频圆极化的新方法。通过在圆形贴片边缘处加载弧形狭缝,并且在贴片中心和其中一条弧形狭缝处分别引入一短狭缝,实现单同轴馈电的双频圆极化。结构紧凑,便于加工。给出了天线的详细设计及实验结果,实测结果证明了该设计的有效性。更多还原

【Abstract】 Recent developments in microstrip antenna technology are surveyed. Emphasis is on those in techniques for compact, multi-band, circularly polarized operations with method of single layer and single feed. A novel technique for realizing dual-band circularly-polarization on circular microstrip patch antenna is proposed. By embedding arc-shaped slots closing to the boundary and introducing one short narrow slot respectively to both center of the circular path and one of the arc-shaped slots, the microstrip antenna can obtain dual-band circular polarized radiation with single co-axial feed. The size of this antenna is reduced and its fabrication is easy. Details of the proposed antenna design and experimental results are presented. The measured results show validity of the design.更多还原