A Review of Antenna Array Technologies for Point-to-Point and Point-to-Multipoint Wireless Communications at Millimeter-Wave Frequencies by G. Federico, D. Caratelli, G. Theis, A. B. Smolders

“…The achievements of high-gain characteristics and agile beamforming with wide-scan capabilities are the main targets of the ongoing research on mm-wave antenna arrays. …”
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System Coverage and Capacity Analysis on Millimeter-Wave Band for 5G Mobile Communication Systems with Massive Antenna Structure by Jun Suk Kim, Jae Sheung Shin, Sung-Min Oh, Ae-Soon Park, Min Young Chung

“…For realization of the 5G mobile communications, electronics and telecommunications research institute (ETRI) is developing central network applying various massive antenna structures with beamforming. In this paper, we have introduced the central network and evaluated the system coverage and capacity through C++ language-based simulations with real geospatial information.…”
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Energy-Efficiency Maximization in Backscatter Communication-Based Non-Orthogonal Multiple Access System: Dinkelbach and Successive Convex Approximation Approaches by Dingjia Lin, Tianqi Wang, Kaidi Wang, Zhiguo Ding

“…The goal is to maximize energy efficiency (EE) through the optimization of the beamforming matrix and the reflection coefficient of the BackCom devices. …”
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Robust secure design for relay wireless sensor networks with simultaneous wireless information and power transfer by Hehao Niu, Bangning Zhang, Daoxing Guo, Mingyue Lu

“…Specifically, by considering the energy receiver which may act as potential eavesdropper and assuming that only imperfect channel state information can be attained, we propose a joint robust beamforming and artificial noise scheme. We formulate the relay power minimization problem under both the secrecy rate constraint and the energy harvesting constraints, which is non-convex and hard to tackle. …”
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A CNN-Based Microwave Imaging System for Detecting Watermelon Ripeness by Zachary M. Choffin, Lingyan Kong, Yu Gan, Nathan Jeong

“…In this paper, a S- and C-band microwave imaging system that utilizes DAS (Delay and Sum) beamforming with an automated high-frequency switching network is built to scan watermelons and determine their ripeness. …”
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Maximizing the Rate of IRS-Assisted Downlink NOMA Systems by Xinying Li, Haixia Wei, Haiyan Huang, Cuiran Li, Lijun Zhang

“…As for a multiuser scenario, the alternating optimization (AO) algorithm is raised based on transmit beamforming and reflection phase shift matrix to settle relevant issues and mitigate computational complexity. …”
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Low-Complexity Spatial-Temporal Filtering Method via Compressive Sensing for Interference Mitigation in a GNSS Receiver by Chung-Liang Chang, Guo-Shing Huang

“…Secondly, the 2-dimensional (2D) minimum variance distortionless response (MVDR) beamformer is employed in proposed system to mitigate the narrowband and wideband interference simultaneously. …”
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Linear Array Design with Switched Beams for Wireless Communications Systems by Vinícius Ludwig-Barbosa, Edson Schlosser, Renato Machado, Filipe Guterres Ferreira, Sabrina Müller Tolfo, Marcos Vinício Thomas Heckler

“…This paper presents an analysis for optimal design of switched beamforming applied to a linear array for wireless communication systems. …”
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Power Management in Multiuser Adaptive Modulation Transmission under QoS Requirements by Saud Althunibat, Nizar Zorba, Charalabos Skianis, Christos Verikoukis

“…A transmitter power management mechanism is presented in this paper where Multiple-Input Multiple-Output (MIMO) Multiuser Random Beamforming with Adaptive Modulation strategy is performed by the system. …”
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Stepped Frequency Pulse Frequency Diverse Array Radar for Target Localization in Angle and Range Domains by Ming Tan, Chun-yang Wang, Zhi-hui Li, Xin Li, Lei Bao

“…Unlike phased array bringing angle-dependent and range-independent beamforming, a new kind of radar system called frequency diverse array (FDA) has been widely used for its ability to generate angle-range-dependent beampattern, which provides a broad prospect of radar application. …”
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Weighted Sum Secrecy Rate Optimization for Cooperative Double-IRS-Assisted Multiuser Network by Shaochuan Yang, Kaizhi Huang, Hehao Niu, Yi Wang, Zheng Chu, Gaojie Chen, Zhen Li

“…In particular, we maximize the weighted sum secrecy rate of the system by jointly optimizing the beamforming vector for transmitted signal and artificial noise at the base station (BS) and the cooperative phase shifts of two IRSs, under the constraints of transmission power at the BS and the unit-modulus phase shift of IRSs. …”
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Covert Communication for Wireless Networks with Full-Duplex Multiantenna Relay by Ling Yang, Weiwei Yang, Liang Tang, Liwei Tao, Xingbo Lu, Zhengyun He

“…In the second stage, the relay decodes and forwards the covert information received in the first stage; at the same time, the relay uses zero-forcing beamforming to send interference signals to the warden to ensure covert transmission. …”
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Joint transmit filter and sparse array design with transmit subaperturing FDA‐MIMO radar by Zihang Ding, Junwei Xie

“…In this study, joint transmit filters and sparse array design enabling the maximum signal to interference plus the noise ratio (SINR) beamforming at the transmit subaperturing frequency diverse array multiple‐input multiple‐output (TS‐FDA‐MIMO) radar is examined. …”
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Multiobjective Synthesis of Steerable UWB Circular Antenna Array considering Energy Patterns by Leopoldo A. Garza, Marco A. Panduro, David H. Covarrubias, Alberto Reyna

“…By this way we avoid individual beamforming for each frequency in UWB spectrum if the problem was addressed from the frequency domain. …”
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On Calibration and Direction Finding with Uniform Circular Arrays by Stephan Häfner, Martin Käske, Reiner Thomä

“…Also, two novel DF techniques will be proposed, based on the Capon beamformer, but with reduced computational effort and higher resolution for bearing estimation. …”
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Multi-Functional Reconfigurable Intelligent Surface Assisted Security Communication Systems Under Imperfect CSI of Eavesdroppers by Rui-Bao Zhang, Dian-Wu Yue, Yu Sun

“…Based on the bounded CSI error model, this paper strictly limits the upper bound of information leakage to potential eavesdroppers and seeks to maximize the system sum rate by jointly optimizing the beamforming at the transmitter side and the coupled phase shifts of the MF-RIS. …”
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Smart Cylindrical Dome Antenna Based on Active Frequency Selective Surface by Tongyu Ding, Shaoqing Zhang, Liang Zhang, Yanhui Liu

“…In this paper, we proposed a beamforming antenna, which is realized using an omnidirectional antenna in the center surrounded by a cylindrical smart dome. …”
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Convolutional Neural Networks for Direction of Arrival Estimation Compared to Classical Estimators and Bounds by Christopher J. Bell, Kaushallya Adhikari, Andrew Brown

“…The results are also compared to the Cramer-Rao lower bound (CRLB) and conventional beamforming. For each source case, CNNs were trained for a perfect uniform line array (ULA) and tested against data from a perfect ULA, perturbed ULAs, ULAs with missing sensors, and ULAs with muffled sensors. …”
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COSMIC’s Large-scale Search for Technosignatures during the VLA Sky Survey: Survey Description and First Results by C. D. Tremblay, J. Sofair, L. Steffes, T. Myburgh, D. Czech, P. B. Demorest, R. A. Donnachie, A. W. Pollak, M. Ruzindana, Siemion A. P. V., S. S. Varghese, S. Z. Sheikh

“…This represents about 30 minutes of observation during the VLA Sky Survey, where we typically observe about 2000 sources hr ^–1 in the coherent beamforming mode. We did not detect any unidentifiable signals, setting isotropic power limits ranging from 10 ^11 to 10 ^16 W.…”
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Multibeam Antennas Based on 3-D Discrete Lenses With Magnified Field-of-View by Lisa Berretti, Renaud Loison, Esteban Menargues, Lucas Polo-Lopez, Giovanni Toso, Maria Garcia-Vigueras

“…A new type of beamforming network (BFN) based on three-dimensional (3D) discrete lenses is introduced and numerically analyzed in this paper as an antenna system capable of generating multiple beams within a large Field-of-View (FoV). …”
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