资料分享 | 射频专家手把手带你设计低成本PCB天线
资料分享 | 射频专家手把手带你设计低成本PCB天线
- 必须确保在天线末梢或天线长度范围附近不能有任何组件、固定螺钉或接地层;
- 电池线或音频线不能穿过天线或PCB 上天线布线的同一侧面;
- 不能将金属外壳完全覆盖天线。如果产品外壳是金属的或是一个保护罩;
- 天线的方向应该符合最终产品的方向,这样使天线在所需的方向上具有最大的辐射;
- 应该具有足够的空间:接地层越大,MIFA、IFA、芯片天线和导线天线的S11 参数值(回波损耗)会越高;
- 天线正下方不应该存在任何接地层,这个设置适用于所有天线;
- 从天线到接地层要有足够的空间(间隙),该接地层的宽度应该最小。
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首次发布时间:2023-05-10
最近编辑:1年前