Antennas deal with the world outside the device. This would tend to indicate that they should be located on an outside layer.
While it’s easy to say that circuit board substrate material (woven Fiberglas with epoxy binder) is “transparent” to radio signals, a closer look reveals a dielectric constant of 4 as versus a dielectric constant of 1 for free space. This difference will have an effect on the behavior of the antenna (probably not much at 433 MHz), but it’s still not a good idea to bury the antenna under a layer of laminate.
Don’t locate any other conductors on layers below the antenna – just keep them clear.
続きを読む: 多層PCBとは
#PCB設計
BGA reballing emerges as a critical repair technique for modern electronic devices. 最近は, 電子デバイス…
Do you know what PCB stiffeners are? They are widely used in flex and rigid-flex…
プリント基板の製造工程において, PCB warpage is a common problem that manufacturers would encounter.…
In the world of printed circuit board design and manufacturing, precision and accuracy are paramount.…
Soldering is a cornerstone technique in electronics assembly, it's used to connect electrical pieces and…
最近は, electronic products are both compact and lightweight while performing a variety of functions. この…