Prof. Shuai Zhang
Department of Electronic Systems, Aalborg University, 9220 Aalborg, Denmark
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Academic Career Length
19Years (2008-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications21 May 2015 in IEEE Antennas and Wireless Propagation Letters
Journal Article
Shuai ZhangGPGert F. Pedersen
Gert F. PedersenA wideband neutralization line is proposed to reduce the mutual coupling of a compact ultrawideband (UWB) multiple-input-multiple-output (MIMO) antenna. With the introduced decoupling method, the designed UWB MIMO antenna covers the band of 3.1-5 GHz with an isolation of higher than 22 dB. The proposed wideband neutralization line is not necessarily placed in the clearance area between two MIMO elements and can be put above the copper ground. A small clearance (antenna area) of 35 ×16 mm 2 is achieved. The designed UWB MIMO antenna is fabricated. Sparameters, radiation patterns, total efficiency, and realized gain of the prototype are measured and compared to the simulations.
26 April 2018 in IEEE Access
Journal Article
This paper provides a systematic review of the mutual coupling in multiple-input multipleoutput (MIMO) systems, including effects on performances of MIMO systems and various decoupling techniques. The mutual coupling changes the antenna characteristics in an array and, therefore, degrades the system performance of the MIMO system and causes spectral regrowth. Although the system performance can be partially improved by calibrating out the mutual coupling in the digital domain, it is more effective to use decoupling techniques (from the antenna point) to overcome the mutual coupling effects. Some popular decoupling techniques for MIMO systems (especially for massive MIMO base station antennas) are also presented.
24 November 2009 in IEEE Antennas and Wireless Propagation Letters
Journal Article
A compact printed ultrawideband (UWB) multiple-input multiple-output (MIMO)/diversity antenna system (of two elements) with a size of 35 × 40 mm2 operating at a frequency range of 3.110.6 GHz is proposed. The wideband isolation can be achieved through a tree-like structure on the ground plane. The effectiveness of the tree-like structure is analyzed. Measured S-parameters show that the isolation is better than -16 dB (-20 dB in most of the band) across the UWB of 3.110.6 GHz. The radiation patterns, gain, and envelope correlation coefficient are also measured. The proposed antenna is suitable for some portable MIMO/diversity applications.
19 February 2016 in IEEE Antennas and Wireless Propagation Letters
Journal Article
Naser Ojaroudi Parchin
Ming ShenShuai ZhangGPGert F. Pedersen
Gert F. PedersenThis letter proposes a new design of millimeter-wave (mm-Wave) array antenna package with beam steering characteristic for the fifth-generation (5G) mobile applications. In order to achieve a broad three-dimensional scanning coverage of the space with high-gain beams, three identical subarrays of patch antennas have been compactly arranged along the edge region of the mobile phone printed circuit board (PCB) to form the antenna package. By switching the feeding to one of the subarrays, the desired direction of coverage can be achieved. The proposed design has >10-dB gain in the upper spherical space, good directivity, and efficiency, which is suitable for 5G mobile communications. In addition, the impact of the user's hand on the antenna performance has been investigated.
7 December 2018 in Science
Journal Article
JCJiajun Chen
Jiajun ChenEZEnbo Zhu
Enbo ZhuJLJuan Liu
Juan Liu
Shuai ZhangZLZhaoyang Lin
Zhaoyang LinJYJames J. De Yoreo
James J. De Yoreo +3
No barriers to growing a row: Classical nucleation theory predicts that two-dimensional islands on a surface must reach a critical size before they continue to grow; below that size, they dissolve. Chen et al. used phage display to select for short peptides that would bind to molybdenum disulfide (MoS 2 ) (see the Perspective by Kahr and Ward). Hexagonal arrays of these peptides grew epitaxially as dimers but without a size barrier—the critical nuclei size was zero. Although two-dimensional arrays formed, growth occurred one row at time. Classical nucleation theory indeed predicts the absence of a barrier for such one-dimensional growth. Science , this issue p. 1135 ; see also p. 1111
19 December 2011 in IEEE Transactions on Antennas and Propagation
Journal Article
Shuai ZhangBLBuon Kiong Lau
Buon Kiong LauYTYi Tan
Yi Tan
ZYZhinong Ying
Zhinong Ying
Sailing HeAn efficient technique is introduced to reduce mutual coupling between two closely spaced PIFAs for MIMO mobile terminals. The proposed mutual coupling reduction method is based on a T-shape slot impedance transformer and can be applied to both single-band and dual-band PIFAs. For the proposed single-band dual PIFAs, the 10 dB impedance bandwidth covers the 2.4 GHz WLAN band (2.4-2.48 GHz), and within the WLAN band an isolation of over 20 dB is achieved. Moreover, the dual-band version covers both the WLAN band and the WiMAX band of 3.4-3.6 GHz, with isolations of over 19.2 dB and 22.8 dB, respectively. The efficiency, gain and radiation patterns of the two-PIFA prototypes are verified in measurements. Due to very low pattern correlation and very good matching and isolation characteristics, the capacity performances are mainly limited by radiation efficiency. The single-band and dual-band PIFAs are also studied with respect to their locations on the ground plane. An eight-fold increase in the bandwidth of one PIFA is achieved, when the single-band PIFAs are positioned at one corner of the ground plane, with the bandwidth of the other PIFA and the good isolation unchanged.
About Me
Prof. Shuai Zhang received the B.E. degree from the University of Electronic Science and Technology of China, Chengdu, China, in 2007 and the Ph.D. degree in electromagnetic engineering from the Royal Institute of Technology (KTH), Stockholm, Sweden, in 2013. In 2014, he joined Aalborg University, Denmark, where he is currently a Full Professor and the Head of Antenna Research Group. He has supervised/co-supervised 10 Postdocs and 18 PhD students. He has coauthored over 130 articles in well-reputed international journals and over 17 US or WO patents. His citations in Scopus are over 5400 with H index of 38. His current research interests include: millimeter-wave antennas for cellular communications, bio-electromagnetics, metasurfaces, CubeSat antennas, Massive MIMO antennas, wireless sensors, and RFID antennas.He is the Associate Editor for IEEE Antennas and Wireless Propagation Letters; Sensors; and IET Microwaves, Antennas and Propagation. He is the General Co-Chair for iWAT2023 at Aalborg, Denmark, the Super Reviewer (previously known as Super TPC or Vice Chair) for IEEE APS 2020 and 2021 and the TPC for several top IEEE conferences. He is the recipient of “IEEE Antennas and Propagation Society Young Professional Ambassador” in 2022. He has also been intensively invited to international conference and industry to give keynote/plenary speech and presentations. From 2024, he has been the European Association on Antennas and Propagation (EurAAP) Regional Delegate.