Abstract
In this paper, a dual-band four-element multi-input and multi-output (MIMO) antenna system based on compact self-decoupled antenna pairs is proposed for the fifth-generation (5G) operation in mobile terminals. By sharing one common grounding branch for the two adjacent antenna units, dual-band antenna pairs with high isolation can be obtained. In particular, the two compact antenna pairs are placed perpendicularly on both sides of the system ground plane. The MIMO antenna system is optimized to operate in both 3.5 GHz (3.4–3.6 GHz) and 4.9 GHz (4.8–5.0 GHz) bands with isolation better than −17.5 dB for the low band and −20 dB for the high band. The proposed dual-band four-antenna MIMO system is fabricated and measured, and a good agreement between the simulation and measurement is obtained. Moreover, the influences of the phantom hand and display panel on the performance of the MIMO antenna system are also studied and discussed.
Highlights
The fifth generation (5G) mobile communication system will be deployed on a large-scale in 2020, and it will bring us many advantages such as higher transmission rate and shorter latency over the current 4G system [1], [2]
Similar phenomenon can be observed for Ant2. This indicates that with the proposed dual-band self-decoupled antenna pair, the currents almost do not penetrate from one antenna element to another for both the low and high bands
ANTENNA PERFORMANCE An antenna prototype of the proposed dual-band 4-antenna multiple-input and multiple-output (MIMO) system with the optimized dimensions listed in Table 1 was fabricated and measured
Summary
The fifth generation (5G) mobile communication system will be deployed on a large-scale in 2020, and it will bring us many advantages such as higher transmission rate and shorter latency over the current 4G system [1], [2]. Zhao: Dual-Band MIMO Antenna With Compact Self-Decoupled Antenna Pairs for 5G Mobile Applications
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