基于LCP基板的宽带柔性滤波器研究

发布时间：2018-03-30 17:55

本文选题：液晶聚合物基板　切入点：柔性滤波器　出处：《微波学报》2017年02期

【摘要】：研制了一种基于50μm厚度的LCP基板的低损耗、高带外抑制的宽带柔性滤波器。此柔性滤波器采用一段均匀微带线连接4对开路、短路枝节结构,通带频率为5~11 GHz,带内插入损耗优于1.9 dB,当频率高于15GHz时,滤波器在很宽的频率范围内均具有高于40 dB的带外抑制。同时对比了滤波器在不同弯曲状态下的仿真及实测S参数,结果显示此柔性滤波器的性能对结构弯曲并不敏感,这表明它将在柔性电路应用中有很大的发展前景。
[Abstract]:A kind of wideband flexible filter based on 50 渭 m thickness LCP substrate with low loss and high out-of-band suppression is developed. The flexible filter uses a section of uniform microstrip line to connect 4 pairs of open circuit and short circuit branch structure. The passband frequency is 5 ~ 11 GHz, the in-band insertion loss is better than 1.9 dB. When the frequency is higher than 15GHz, the filter has out-of-band suppression of more than 40 dB in a wide frequency range. The simulation and measured S parameters of the filter in different bending states are also compared. The results show that the performance of the flexible filter is not sensitive to structural bending, which indicates that it will have a great prospect in the application of flexible circuits.
【作者单位】：电子科技大学极高频复杂系统国防重点学科实验室;
【基金】：国家自然科学基金(G0501020161371054)
【分类号】：TN713

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