The Antenna Toolbox™ does not support the following features.
These antenna library objects do not support:
PIFA and inverted–F antennas with the infinite ground plane.
Antenna analysis at frequencies less than 1 kHz or greater than 200 GHz.
efficiency works only with one feed location or port.
And it does not support multiple non-air dielectric substrates.
These array library objects do not support:
Arrays using slot, and cavity antennas.
Reflector-based arrays using helix, slot, Vivaldi, cavity, PIFA antennas as exciters.
Building arrays using antennas with tilted ground planes.
Conformal arrays created using unbalanced antennas with infinite ground plane.
Infinite arrays using dielectric materials.