Overview of antenna designs and considerations in 5G cellular phones

The paper for the invited talk presents a quick understanding and an overall picture on the major antenna designs and considerations in the fifth generation mobile communications (5G) cellular phones. Due to the significant differences in the electromagnetic (EM) behaviors and communication requirements for different 5G frequency bands, the frequency boundary is set at 6 GHz to clearly classify the antenna designs and considerations in 5G cellular phones into the ones for sub-6 GHz and above 6 GHz, i.e. the mm-Wave, respectively. From 1G to 5G sub-6 GHz, the main evolutions and challenges in antenna designs for cellular phones are principally driven by the “quantity increase”, such as the band quantity increase and the antenna quantity increase. However, for cellular phone antenna designers, 5G mm-Wave antenna designs, instead, are radical changes or a revolution.