Author Topic: Planes virginity under a patch antenna  (Read 651 times)

0 Members and 1 Guest are viewing this topic.

Offline KoenTopic starter

  • Frequent Contributor
  • **
  • Posts: 502
Planes virginity under a patch antenna
« on: March 14, 2020, 10:58:15 pm »
Hello! In a 4-layer PCB with a ceramic patch antenna atop, is it useful to have the layer directly underneath the antenna as a virgin plane or can traces be routed ? To keep the usual signal/plane/plane/signal stack. Thank you!
 

Offline T3sl4co1l

  • Super Contributor
  • ***
  • Posts: 22436
  • Country: us
  • Expert, Analog Electronics, PCB Layout, EMC
    • Seven Transistor Labs
Re: Planes virginity under a patch antenna
« Reply #1 on: March 15, 2020, 09:32:24 am »
Well, I don't know, I guess you could in some circumstances.  If you don't mind having a huge amount of RF coupled into those traces, and if you have some way to stitch the plane around the traces if they cover much length.

In other words, no, not even no, hell no. :-DD

Tim
Seven Transistor Labs, LLC
Electronic design, from concept to prototype.
Bringing a project to life?  Send me a message!
 
The following users thanked this post: Yansi


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf