Muhannad Y. Muhsin, Firas M. Ali, Ali J. Salim, Zainab F. Mohammad, Jawad K. Ali
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引用次数: 0
摘要
摘要近年来，由于无线通信系统多媒体应用的快速发展，以及为满足 5G 移动通信系统对容量和数据速率的要求，需要采用新的传输技术。多输入多输出（MIMO）天线系统是 5G 通信系统的有力工具之一，它采用多天线并利用多径衰落移动环境，在不增加任何带宽和/或传输功率的情况下提高信道容量。然而，由于移动设备空间有限，天线之间的距离越来越小。天线之间的相互耦合会严重影响多输入多输出系统的整体性能。因此，需要采用隔离改进方法来减少这些影响。本综述介绍了不同的隔离技术及其特点和缺点，并说明了在现代多输入多输出天线系统中应用这些技术的技巧。此外，还比较了这些多输入多输出系统的性能特点。综述还包含 MIMO 天线系统的基本概念及其性能指标。最后，简要讨论了 MIMO 天线系统设计的未来方向和趋势。
Isolation Techniques in MIMO Antennas for 5G Mobile Devices (Comprehensive Review)
Abstract
Recently, due to the fast development in multimedia applications of wireless communication systems and demands of increasing the capacity and data rates to meet the requirements of 5G mobile communication systems, new transmission techniques are needed. One of the powerful enabling tools of the 5G communication systems is the multi-input multi-output (MIMO) antenna system employing multiple antennas and utilizing the multipath fading mobile environment to increase the channel capacity without any additional bandwidth and/or transmitted power. However, because of the limited space of mobile devices, the distances between antennas are decreasing. The mutual coupling between antennas severely affects the overall performance of the MIMO system. So, isolation improvement methods are applied to reduce these influences. In this review, different isolation techniques and their features and drawbacks are presented, and the techniques for applying them in modern MIMO antenna systems are illustrated. Besides, the performance characteristics of these MIMO systems are compared. The review also contains basic concepts of the MIMO antenna system and its performance metrics. Finally, the future directions and trends for the MIMO antenna system design are discussed briefly.
期刊介绍：
Radioelectronics and Communications Systems covers urgent theoretical problems of radio-engineering; results of research efforts, leading experience, which determines directions and development of scientific research in radio engineering and radio electronics; publishes materials of scientific conferences and meetings; information on scientific work in higher educational institutions; newsreel and bibliographic materials. Journal publishes articles in the following sections:Antenna-feeding and microwave devices;Vacuum and gas-discharge devices;Solid-state electronics and integral circuit engineering;Optical radar, communication and information processing systems;Use of computers for research and design of radio-electronic devices and systems;Quantum electronic devices;Design of radio-electronic devices;Radar and radio navigation;Radio engineering devices and systems;Radio engineering theory;Medical radioelectronics.
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