Design of 10 × 10 Massive Mimo Array in Sub-6 GHZ Smart Phone for 5g Applications

Abstract

In this paper, a design of a dual-band 10 × 10 antenna array for 5G Massive Multi-Input Multi-Output (MIMO) applications in the mobile phone is presented. The designed array is proposed to cover the sub-6 GHz bands (LTE bands 42/43 and LTE band 46). To realize MIMO operation in these three LTE bands, ten ring loop antenna elements are integrated into a limited space cell phone circuit board. Due to the implementation of spatial diversity techniques on the antenna elements, better isolation can be achieved. The proposed array was simulated, fabricated, and measured. It achieved good MIMO performances, such as ergodic channel capacities higher than 27.1 bps/Hz and 57.6 bps/Hz for LTE bands 42/43 and LTE band 46, respectively. Also, the achieved Envelope Correlation Coefficient (ECC) is lower than 0.006. Moreover, it exhibited good isolation below −26 dB. The effects of the user's hand phantom on the proposed array performance are also studied in two scenarios: Single Hand Mode (SHM) and Dual Hands Mode (DHM). The simulated results indicate that the proposed MIMO array can still achieve good MIMO performances in the presence of DHM and SHM. The Specific Absorption Rate (SAR) is also presented.

16-Ports Indoor Base Station MIMO Array for Sub-6 GHz 5G Applications

“…By comparing the antenna efficiency, the proposed antenna element has an efficiency of 93.2 %, which is better than other antennas in [3], [8], and [15]. In terms of Isolation, the isolation between any two adjacent antennas is 12.7 dB which is lower than [3] and [8]. This is because the number of antenna elements used in the proposed design is much greater than the designs in [3], and [8].…”

“…Table 1 shows a detailed comparison of the proposed antenna array and some 5G MIMO indoor base station antennas. The proposed array design consists of 16 antenna elements, which is twice the number of elements in [3] of the same size, with an acceptable isolation value. By comparing the antenna efficiency, the proposed antenna element has an efficiency of 93.2 %, which is better than other antennas in [3], [8], and [15].…”

“…The proposed array design consists of 16 antenna elements, which is twice the number of elements in [3] of the same size, with an acceptable isolation value. By comparing the antenna efficiency, the proposed antenna element has an efficiency of 93.2 %, which is better than other antennas in [3], [8], and [15]. In terms of Isolation, the isolation between any two adjacent antennas is 12.7 dB which is lower than [3] and [8].…”

“…Furthermore, it has been proved that a multiple-input multiple-output (MIMO) system with a reasonably large number of antennas elements should be used to achieve high throughput for 5G operations below 6 GHz [2]. To accomplish high-order diversity and multiplexing, a large number of antenna components should be incorporated in the user equipment (UE) [3] and the base station (BS) [4], [5].…”

Development of Low Profile M-Shaped Monopole Antenna for Sub 6 GHz Bluetooth, LTE, ISM, Wi-Fi and WLAN Applications

“…Abhijuru [1] designed a coplanar wave guide fed tapered slot antenna for wireless communication applications with beam switching capability. Abouelnaga [2] produced a Multi Input Multi Output MIMO antenna with 10X10 elements for 5G communication applications which fall under sub 6 GHz range. Alieldin [3] designed dual polarized triple band antenna for various communication applications of 2G, 3G, 4G and 5G with sub 6 GHz band coverage.…”