请教PIFA 发射效率的问题,困惑阿 小弟仿了一个双频的PIFA,S11和smith chart都不错,但是发射效率低频是x%, 高频是3x%,怎么调都不行为什么效率这么低 我自己考虑的可能: 1。我用了一种loss tangent =0.07左右的介质材料(上面的头头们让试的一种样品) 2。用到了capacitive feed和capacitive load等结构 3。因为...
网友回复: 匹配的时候不都是要看下阻抗在smith chart上的分布才能决定到底是串并电感电容么 网友回复: 新人学习中 申明:网友回复良莠不齐,仅供参考。如需专业帮助,请学习业界专家讲授的天线设计视频培训教程。
超薄手机中PIFA天线的设计
Figure 8. Measurement result (Smith Chart). Figure 9. Measurement result (Radiation Pattern). Table 3. Measurement Result (Peak Gain). 6. Conclusions A compact multi-band internal antenna for mobile handsets which can cover WCDMA800, WCDMA850, GSM900, DCS, PCS, WCDMA2100, LTE2100 commun...
Figure 8. Measurement result (Smith Chart). Figure 9. Measurement result (Radiation Pattern). Table 3. Measurement Result (Peak Gain). 6. Conclusions A compact multi-band internal antenna for mobile handsets which can cover WCDMA800, WCDMA850, GSM900, DCS, PCS, WCDMA2100, LTE2100 commun...