Not long ago someone thought of combining circuits and plastic components. The result, 3 dimensional molded interconnects (3D MID), changed the way cell phone antennas are made today.
Today, cell phone antennas are no longer planer; reception isn’t dependent on your orientation to the tower.
You can get multiple antenna into smaller spaces because you have integrated antenna pattern and circuitry into an existing and previously unused space, the carrier.
Laser Direct Structuring enables you eliminate parts making the entire system less complex and more reliable.