Antenna array for use in mobile devices

A mobile communication device with an antenna array having a plurality of antenna elements capable of forming one or more signal beams to transmit radio frequency (RF) signals wherein each of the antenna elements comprises:

• a top layer having a solder pad connected to a top metal ground plate of a ground assembly;
• the ground assembly comprising a plurality of channels on a back side and a plurality of lines connecting the top metal ground plate and a bottom metal ground plate allowing the ground assembly to be accessible from a top side, a bottom side and a back side of the antenna element, wherein the ground assembly has a middle ground plate connected to the top and bottom metal ground plates through the plurality of channels and the plurality of lines;
• and
• a dielectric material located between a resonator, the top metal ground plate, and the bottom metal ground plate.

A mobile communication device with an antenna array capable of transmitting and receiving radio frequency (RF) signals having a plurality of antenna elements comprising:

• first and second isolated directors capable of directing wireless radio frequency (RF) signals for first and second resonators;
• wherein the first and second resonators are formed in substantially looped configurations with a feed line and a terminal end and which are capable of transmitting and receiving RF signals at a first and second frequency bands;
• a ground assembly having a middle ground plate located between the first and second resonators, wherein the ground assembly has a plurality of channels on a back side and a plurality of lines connecting a top, the middle and a bottom metal ground plate;
• and
• a dielectric material located between the directors, the resonators, the top metal ground plate, middle ground plate and the bottom metal ground plate.