Journal ArticleDOI
Printed Multi-Band MIMO Antenna Systems and Their Performance Metrics [Wireless Corner]
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TLDR
In this article, the authors define the new required metrics to characterize MIMO antenna systems and then present several recent printed multi-band antenna systems, along with some isolation-enhancement mechanisms that are used in these closely packed antennas.Abstract:
Multiple-input-multiple-output (MIMO) antenna systems are a key enabling technology for modern fourth-generation (4G) wireless systems. The need for higher data rates for multimedia applications within the limited bandwidth and power levels led the way to the use of multiple antennas at the receiver and transmitter ends. Printed MIMO antenna systems, supporting multiple bands, including the lower band of the 4G wireless standard (LTE), pose a challenge in terms of available size. In this work, we start by defining the new required metrics to characterize MIMO antenna systems. We then present several recent printed multi-band MIMO antenna systems, along with some isolation-enhancement mechanisms that are used in these closely packed antennas.read more
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Journal ArticleDOI
Eight-Port Orthogonally Dual-Polarized Antenna Array for 5G Smartphone Applications
TL;DR: A dual-polarized hybrid eight-antenna array operating in the 2.6 GHz band for 5G communication multi-input multi-output (MIMO) operation in the smartphone is presented in this paper.
Journal ArticleDOI
Current Misuses and Future Prospects for Printed Multiple-Input, Multiple-Output Antenna Systems [Wireless Corner]
TL;DR: In the past six years or so, the number of scientific articles and conference papers providing possible multiple-input, multiple-output (MIMO) antenna system solutions has noticeably increased but a wide range of publications still suffer from some major misconceptions and unclear understanding of the fundamental aspects while designing, characterizing, and evaluating such multiantenna systems.
Journal ArticleDOI
Two Asymmetrically Mirrored Gap-Coupled Loop Antennas as a Compact Building Block for Eight-Antenna MIMO Array in the Future Smartphone
TL;DR: In this article, a two-antenna building block for forming the multiple-input multiple-output (MIMO) array in the mobile device such as the smartphone is presented, which is formed by two gap-coupled loop antennas having asymmetric mirrored (AM) structures with respect to the system ground plane of the smartphone.
Journal ArticleDOI
12-Port 5G Massive MIMO Antenna Array in Sub-6GHz Mobile Handset for LTE Bands 42/43/46 Applications
TL;DR: The results show that the proposed antenna array can still exhibit good radiation and MIMO performances when operating under data mode and read mode conditions.
Journal ArticleDOI
Multiband 10-Antenna Array for Sub-6 GHz MIMO Applications in 5-G Smartphones
TL;DR: A multi-band 10-antenna array working at the sub-6-GHz spectrum (LTE bands 42/43 and LTE band 46) for massive multiple-input multiple-output (MIMO) applications in future 5G smartphones is proposed.