文中设计了一种用于室内蜂窝通信的正弦波曲折臂阿基米德缝隙螺旋天线。在阿基米德螺旋线中加入正弦波可以 在螺旋线半径一定的情况下更好的延长天线臂的电长度,提高天线的小型化程度,并有助于保持传统阿基米德缝隙螺旋 天线优良的辐射特性。仿真和测量结果表明:在0.4 GHz ~ 2.5 GHz 的频率范围内,与传统的阿基米德缝隙螺旋天线相 比,文中设计天线口径面积减少了62.3%。

A sinuous meander Archimedean spiral slot antenna that can be used in indoor cellular telephone system is presented in this paper. It extends the electrical length of the antenna arms more with a constant radius to insert sine wave into the spiral line, which could enhance the miniaturization while the radiation characteristics can be kept changeless to the typical Archimedean spiral antenna. Good agreement is shown between the simulated results and the measured results. The result shows that the sinuous meander archimedean slot antenna has almost the same radiation characteristics in the frequency range of 0.4 GHz to 2.5 GHz. The area of the new antenna is about 62.3% smaller than the traditional antenna.

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