Antenna Arrays for Full-Duplex Systems

The 5G technology necessitates the advancement in antenna technology to meet the demands of higher data rates, lower latency and lower power consumption. In wideband mmwave 5G, these can be partly achieved using wideband antenna arrays. The capacity of the 5 G communication can be further enhanced by the use of full-duplex radios. In this paper, a fullduplex transceiver antenna array with planar architecture for 28 GHz 5 G NR FR2 n258 (27.5-28.35 GHz) band is proposed. In this design, the array gain is about 17 dB at 27.5 GHz / 28 GHz and has a significant isolation (over 33 dB) across the band. This is a highly desirable isolation for the overall reduction of the self interference at the RF stage of wideband mm-wave 5 G fullduplex radios.