设计四层堆叠PCB

对于这样的事情，我可能会把你推荐给制造商。
我知道Johanson在他们的产品上有一些设计协助和审查服务。
这是该页面的链接。   
johansontechnology.com   
Johanson Technology的高质量多层高Q电容器
Johanson Technology是高频陶瓷解决方案的供应商。



以下为原文

        For something like this I would probably refer you to the manufacturer. I know Johanson so some design assistance and review services on their products. Here is a link to that page.
              johansontechnology.com        Quality Multi-Layer High-Q Capacitors from Johanson Technology

Johanson Technology is your source for High Frequency Ceramic Solutions.

好，谢谢。
我会读一下〜



以下为原文

        OK, thanks. I’ll have a read~

我推荐Eric Bogatin简化信号完整性（ISBN 0130669466）作为一种资源，值得为那些对电子产品开发感兴趣的人们进行收购和研究。
这不是世界上最便宜的文字，但如果从节省董事会旋转的角度看待它，并且在那令人不快的“它不起作用，我不知道为什么”的发展阶段花费的时间，这是一个讨价还价。
没有阅读更新版本（ISBN 013451341X），据说包含更多主题并且花费更多钱，但我怀疑它也值得一试。
至于最初的问题，要检查的两个基本项目是确保天线的馈线具有适当的特征阻抗，并清除天线下方的地平面，原因与进行移动无线电装置的人员使用相同的基本原因
同轴电缆代替旧的圣诞灯串，并将天线安装在车辆外部而不是在行李箱内。
阻抗问题是迹线宽度，层布局，电路板材料和叠层的函数。
如果您还想了解其背后的“原因”，请参考许多可用于快速检查的在线计算器中的一种，或Bogatin或类似参考。
另请注意，任何超出地平面的走线长度都会成为天线的一部分而不是馈线，并会影响结果。
请注意，在上面的样本布局中，与天线串联的小SMT元件是如何精确放置在地平面的边缘上的？
这就是馈线结束和天线开始的点，SMT放置允许通过元件选择实现微调功能。
如果所显示的布局不提供一些关键信息，那么提供任何信心的竖起或下降都很困难。
虽然在无地区似乎确实存在某种形式的发球网络，这对我来说这个区域可能不像它应该的那样没有地面。



以下为原文

        I’d recommend Signal Integrity Simplified by Eric Bogatin (ISBN  0130669466) as a resource worthy of acquisition and study for folks that are interested in electronics development beyond the trivial.  It’s not the cheapest text in the world, but a bargain if one looks at it from the perspective of saving board spins and time spent in that unpleasant “it doesn’t work and I have no idea why” stage of development.  Haven’t read the updated version (ISBN  013451341X) that supposedly includes more topics and costs more money, but I suspect it’d be worth the scratch also.
As to the original question, two foundational items to check on would be ensuring that the feedline to the antenna has the proper characteristic impedance, and to clear away ground planes from beneath the antenna, for the same basic reasons that folks doing mobile radio installations use coax cable instead of an old string of Christmas lights and mount the antenna on the outside of the vehicle instead of inside the trunk. The impedance question is a function of trace width, layer placement, board material, and stackup.  Consult one of many online calculators available for a quick check, or Bogatin or similar references if you’d like to also understand a bit more of the ‘why’ behind it.
Notice also that any trace length extending beyond the ground plane effectively becomes part of the antenna rather than the feedline, and will affect results.  Notice how in the sample layouts above, the little SMT component in series with the antenna is placed precisely on the edge of the ground plane?  That’s the point where feedline ends and antenna begins, and the SMT placement allows a smidge of fine-tuning capability through component selection.
Insofar as the layouts shown don’t provide some key info, offering a thumbs-up or -down with any confidence is difficult.  There does appear to be a tee network of some form in the ground-free area though, which suggests to me that that region might not be as ground-free as perhaps it ought.