By far as for the concern of building a prototype, the
antenna is essentially being positioned in very close vicinity
to the 28 GHz Radio Frequency Integrated Circuit and the
front end module because there will be high signal attenuation
at 28 GHz. Realizing the antenna array directly on the
printed circuit board of the 5G cellular device will minimize
the insertion loss between the antenna and Radio Frequency
Integrated Circuit. This infers that an employment of the
Radio Frequency blocks in the 5G architecture before the
intermediate frequency stage will be reliant on the placement
of the 28 GHz antenna array in the cellular phone. Taking
this concept into a thought, a minimum set of two 28 GHz
antenna arrays is proposed for millimeter wave 5G cellular
applications in [88], the two antenna arrays are employed
in the top and bottom part of the cellular device. The
28 GHz antenna array conguration for 5G cellular mobile
terminals and its comparison with the 4G standard is given
in table 6.