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A 12-Port MIMO Antenna System for 5G/WLAN Applications
Wenshi You1, Zhonggen Wang1, Wenyan Nie2
1School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China.
Micromachines
|June 28, 2023
Summary
A novel 12-port multiple-input multiple-output (MIMO) antenna system is presented for 5G and wireless local area network (WLAN) applications. This system achieves high performance and isolation without extra decoupling structures, even when held by hand.
Area of Science:
- Wireless communication engineering
- Antenna theory and design
- Electromagnetics
Background:
- The increasing demand for high-speed wireless data necessitates advanced antenna systems for 5G and WLAN.
- Existing antenna solutions often struggle with isolation and performance in mobile device form factors.
Purpose of the Study:
- To propose and validate a compact 12-port MIMO antenna system for 5G/WLAN applications.
- To achieve high isolation between antenna elements without additional decoupling structures.
- To evaluate the antenna's performance under different mobile device handling scenarios.
Main Methods:
- Design of a 12-port MIMO antenna array using L-shaped and folded monopole modules.
- Integration of six antenna pairs to form a 12x12 array.
- Measurement of isolation, efficiency, and envelope correlation coefficient.
- Analysis of performance in one-hand and two-hand holding modes.
Main Results:
- The antenna system covers the 3.3-3.6 GHz (C-band for 5G) and 4.5-5.9 GHz (5G/WLAN) bands.
- Isolation between antenna pairs exceeds 11 dB without extra decoupling.
- Overall efficiency is greater than 75%, with an envelope correlation coefficient below 0.04.
- Stable radiation and MIMO performance demonstrated in both one-hand and two-hand holding modes.
Conclusions:
- The proposed 12-port MIMO antenna system offers a robust solution for 5G and WLAN mobile applications.
- The design achieves excellent isolation and performance, suitable for practical mobile device integration.
- The antenna's stability under handling conditions validates its real-world applicability.
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