基于Polys try介质基板微带天线的应用研究

针对传统贴片天线检测频率有限(2~35 GHz)且由于增益低导致检测结果不明显的问题,文中提出了以聚苯乙烯作为介质基板构建微带天线的解决方案。在以介电材料玻璃超细纤维为介质基板的理论基础上,采用高分子材料Polysty作为介质基板构建微带天线模型。结合经典天线理论计算辐射贴片以及介质基板尺寸;基于HFSS搭建Polysty作为介质基板的模型并根据微带天线特性将理论设计的微带天线参数进行优化,最终得到在1 GHz时微带天线的最佳尺寸。仿真及实验结果表明,Polysty作为介质基板的微带天线中心频率可以达到1 GHz,增益高并且检测角度范围大。

Application Research of Microstrip Antenna Based on Polystry Dielectric Substrate

For the problem that the traditional patch antenna detection frequency is limited (2~35 GHz) and the detection result is not obvious due to the low gain, a solution for constructing a microstrip antenna using polystyrene as a dielectric substrate was proposed. On the basis of the theory that the dielectric material glass microfiber is used as the dielectric substrate, a microstrip antenna model was constructed by using polysty as dielectric substrate. Based on the classical antenna theory, the size of radiation patch and dielectric substrate was calculated. Polysty was built as the model of dielectric substrate based on HFSS. According to the characteristics of microstrip antenna, the parameters of microstrip antenna designed in theory were optimized, and the optimal size of microstrip antenna at 1 GHz was obtained. The results showed that the center frequency of Polysty microstrip antenna as dielectric substrate colud reach 1 GHz, with high gain and wide detection angle range.