The 5G cellular system is expected to crowd the millimetre wave spectrum due to the requirement of higher data rates. 5G is expected to cover the 28 GHz spectrum while in most countries the expected occupancy is between 20 GHz to 50 GHz. The expected deployment of 5G is in the year 2020. Therefore, researchers and academicians worldwide are working on various aspects of 5G technologies starting from the semiconductor devices to the terminal antennas.

Antennas are an integral part of any wireless communication systems. Millimetre-wave technology requires new design technologies for antennas to be used in mobile handsets and base stations. Some of the expected requirements for the antennas used in 5G communications include having beam steering capability, providing higher directionality, and being capable of accommodating multiple users leading to the proliferation of a multi-user multiple-input-multiple-output (MIMO) architecture.

Therefore, this Special Issue aims to provide novel antenna design solutions including antenna arrays for 5G communications that meet the architectural needs of multi-user MIMO. Original research and review articles are welcome.

Potential topics include but are not limited to the following:

• Antenna in Package (Module)
• Antenna array design for 5G
• mm-wave antenna design for 5G
• MIMO for 5G
• Array antenna structures
• Near field noises
• Mutual coupling effects
• Sub 6 GHz antennas
• Optimization techniques