In the world of electromagnetics, we can’t do wireless without antennas, which work brilliantly when mounted away from objects and suspended in free space. Their efficiency is generally only limited to copper and substrate losses, with radiation efficiencies of 90%+ possible. It’s when they’re integrated into something and placed near other objects that performance becomes more uncertain.
To achieve efficient and optimal wireless performance on difficult platforms, the antenna should be one of the first things considered in a design, and not treated as an afterthought. With an understanding of the propagation channel requirements and an antenna that supports these requirements, superior performance reliability and quality can be achieved.