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Wireless Communications and Mobile Computing
Volume 2019, Article ID 6940708, 15 pages
https://doi.org/10.1155/2019/6940708
Review Article

Development of Frequency Modulated Array Antennas for Millimeter-Wave Communications

1University of Electronic Science and Technology of China (UESTC), China
2Koforidua Technical University (KTU), Ghana

Correspondence should be addressed to Shaddrack Yaw Nusenu; moc.oohay@hg2102unesun

Received 24 December 2018; Revised 15 March 2019; Accepted 7 April 2019; Published 16 April 2019

Academic Editor: Daniele Pinchera

Copyright © 2019 Shaddrack Yaw Nusenu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

With the massive growth of wireless data in mobile broadband communications, millimeter-wave (mm-wave) communication is an alternative enabling technique for fifth generation (5G) wireless communication systems. More importantly, mm-wave offers large frequency spectrum bands ranging from 30GHz to 300GHz that can be utilized to provide very high capacity (i.e., multigigabits per-second data rates). Moreover, because of the small wavelength at mm-wave frequencies, we can exploit large antenna elements in a small physical area, meaning beamforming schemes are feasible. Nevertheless, high directional antennas should be used due to overcoming the severe path loss and absorption in mm-wave frequencies. Further, the antennas should be steerable in angle and range directions to support point-to-point (multipoint) communications. So far, mm-wave communication has utilized phased-array antennas arrangement which is solely angle dependent. This review paper presents recent array technology, namely, frequency modulated frequency diverse array (FDA) for mm-wave communication applications with an emphasis on beamforming. In FDA, small frequency increment is added across the elements. In doing so, an array beam is generated which is angle-range-time dependent without the need of phase shifters. This feature has several promising potentials in mm-wave communications. In this review, the object is to bring to the fore this advance FDA technology to mm-wave communications community to call for more investigations. We review FDA research progress up to date and highlight the potential applications in mm-wave communications.