5G MOBILE-HANDSET MIMO ANTENNA BASED ON SMALL PHASED ARRAYS

摘要

5G is the abbreviation for 5th generation mobile communications, although it is not quite an official term used in technical specifications yet. Most of the spectrum for cellular mobile systems is concentrated in the bands below 6G Hz, which is now beginning to cause a severe spectrum crisis. Yet, high cell capacity and data rates of several gigabits per second are required for the next generation of mobile communications to accommodate the rapidly increasing user demands. This has motivated the exploration of communications in the millimeter-wave frequency range, which offers a wider bandwidth and uses smaller antennas. Many companies and academics are actively engaged in this exploration, and South Korea's Samsung Electronics has already achieved a peak download speed of 1Gbps at 28GHZ, by employing adaptive beam-forming technology with 64 working antennas, making it a suitable technology candidate for urban environments.