https://ask.antenova.com/?qa=blob&qa_blobid=3350675478360687777
We are designing a Telematics Gateway has heating components, hence we forced to use metal bottom plate for thermal management and top side plastic for RF components. Provided the detail design concept please let us know the Pros and cons for the same.
For 4G we are using chip antenna.
For GNSS 25 mm patch antenna.
For WIFI + BT PCB trace antenna.