I am trying to design a 2 layer PCB including two transceivers (GSM module + Zigbee IC) with internal PCB monopole antennas. I managed to have a solid ground plane on non-component side as recommended in general. Now I would like to insert a touch screen display which covers the most of that solid ground plane. Here's a screenshot (GSM only)
I read a ground plane completing a monopole antenna would behave as dipole antenna. Since this ground is covered with a lcd display, the performance would be affected, right?
How do cell phones manage this issue?
Also if a monopole antenna radiates in one direction opposed to ground plane, why no ground plane under antenna is a must?
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