An MA system with an isotropic radiation pattern receives incoming signals from all directions.
The more isotropic radiation patterns of both '8-PIFA' and '8-CF' structures outperforming the uniform pattern (0dBi gain) of the '2-ISO' by 1.
This idea can be further extended to cylindrical coordination or a 3D case, generating a perfect isotropic radiation
or a single plane wave beam spatially.
However, these antennas have many design parameters that could be optimized to reduce their size and cost, increase their bandwidth, make them sensitive to both vertically and horizontally polarized waves, improve their isotropic radiation
characteristics and reduce their interaction with the human body.