小尺寸铁氧体宽带螺旋天线的设计

摘要

根据螺旋天线的近场耦合理论,采用铁氧体技术,设计了一个频带范围在10MHz到400MHz的小型宽带螺旋天线.为了得到宽带螺旋天线的最佳性能,对宽带螺旋天线不同的圈数进行数值仿真.研究结果表明,螺旋天线的圈数对于频带宽度影响很大,而且对于其谐振点的影响也很大.%Based on the theory of spiral antenna near-field coupling, a small size ferrite wide-band spiral antenna from 10MHz to 400MHz is presented in this paper. In order to obtain the optimized performance of the antenna, the antenna on different cycles are numerically simulated. The results show that different cycles have great effect on the bandwidth and resonant frequency.