Classification of Authentic and Spoofed GNSS Signals Using a Calibrated Antenna Array by Michael C. Esswein, Mark L. Psiaki

Get full text

Research on Spaceborne Multi-Beam Phased Array Fed Refl ector Antenna by Tao YANG, Lei LI, Yongqing ZOU

“…Spaceborne multi-beam antenna is one of the main means to meet the needs of high-capacity and high-speed satellite communication services, and is widely used in various satellite communication systems.Various forms of antennas, such as spaceborne phased array multi-beam antenna, lens multi-beam antenna, conventional refl ector multi-beam antenna and phased array fed reflector multi-beam antenna were introduced.Here, a novel phased array fed reflector multi-beam antenna was demonstrated, the corresponding design method was given, and the prototype was developed and verifi ed.The proposed antenna has the characteristics of transmitting and receiving common aperture, small array size, low cost, scalable beam quantity, fast agility, high dynamic deployment effi ciency as well as good platform adaptability.Compared with the two-dimensional phased array antenna system, the antenna could achieved more beams.Compared with the multi-beam refl ector antenna, it could also realized the agility scanning of all beams and the centralized call ability of 93%~97%.…”
Get full text

Design a Multistub Array Antenna at 28 GHz with Beam Switching Ability by A. Lak

“…Substrate Integrated Waveguide used for feeding part of single element antenna and Wilkinson power divider used for antenna array feeding network. The proposed antenna has been simulated, fabricated, and measured (S11, E, and H pattern). …”
Get full text

Phased Antenna-Array Synthesis Using Taylor-Series Expansion and Neural Networks by Adel Kouki, Ramzi Kheder, Ridha Ghayoula, Issam El Gmati, Lassaad Latrach, Wided Amara, Leila Ben Ayed, Jaouhar Fattahi

“…This paper presents a novel approach to synthesizing phased antenna arrays (PAAs) by combining Taylor-series expansion with neural networks (NNs), enhancing the PAA synthesis process for modern communication and radar systems. …”
Get full text

Microlens Array-Based Beam Profile and Wavefront Sensor With Physical Constraint Learning by Feng-Chun Hsu, Chun-Yu Lin, Chia-Yuan Chang, Shean-Jen Chen

“…We first develop a pretrained network using microlens array (MLA) simulation datasets. To implement a practical MLA-based measurement system, this pretrained network is further fine-tuned with datasets modulated by a spatial light modulator in the system setup. …”
Get full text

A Compact and High-Power Rectenna Array for Wireless Power Transmission Applications by Dajiu Huang, Jincheng Li, Ziqiang Du, Changjun Liu, Zhongqi He, Ji Zhang

“…Rectennas are a crucial component of a MWPT system. The rectenna’s power capacity and output DC power have great significance with regard to the MWPT system’s performance. …”
Get full text

Comparison of Surface Current Measurement Between Compact and Square-Array Ocean Radar by Yu-Hsuan Huang, Chia-Yan Cheng

“…This study compares the compact CODAR system (MABT, 13 MHz) and the square-array phased-array radar (KNTN, 8 MHz) deployed at Cape Maobitou, Taiwan. …”
Get full text

Analysis of space solar array arc images based on deep learning techniques by Afaf M. Abd El-Hameed, Ahmed S. Farahat, Khaled Y. Youssef, M. Elfarran, I. M. Selim

“…The image analysis can advance the understanding of arc evolution, enabling improved mitigation strategies for solar array systems in space applications.…”
Get full text

Optical multi-beam steering and communication using integrated acousto-optics arrays by Qixuan Lin, Shucheng Fang, Yue Yu, Zichen Xi, Linbo Shao, Bingzhao Li, Mo Li

“…Here, we report a scalable multi-beam steering system comprising an array of integrated acousto-optic beam steering channels on a thin-film lithium niobate platform. …”
Get full text

Detection and Optimization of Photovoltaic Arrays’ Tilt Angles Using Remote Sensing Data by Niko Lukač, Sebastijan Seme, Klemen Sredenšek, Gorazd Štumberger, Domen Mongus, Borut Žalik, Marko Bizjak

“…This paper presents a novel method for optimizing the tilt angles of existing PV arrays by integrating Very High Resolution (VHR) satellite imagery and airborne Light Detection and Ranging (LiDAR) data. …”
Get full text

Enabling Sub-Terahertz Broadband MIMO Communications With Leaky-Wave Antenna Arrays by Albert Diez-Comas, Duschia M. Bodet, Josep M. Jornet

“…In addition, we present a capacity comparison of different antenna array technologies. These findings establish the potential of tilted LWA arrays for future (sub-)THz MIMO systems, offering a practical approach to overcome the limitations of conventional spatial multiplexing techniques.…”
Get full text

An Analysis of Arrays with Irregular Apertures in MEMS Smart Glasses for the Improvement of Clear View by Roland Donatiello, Mustaqim Siddi Que Iskhandar, Md Kamrul Hasan, Philipp Kästner, Muhammad Hasnain Qasim, Jiahao Chen, Shilby Baby, Basma Elsaka, Guilin Xu, Hartmut Hillmer

“…An innovative glass substrate surface technology including integrated micro-electro-mechanical systems (MEMS) is presented as an advanced light modulation, heat control, and energy management system. …”
Get full text

Underwater Wireless Laser-Based Communications Using Optical Phased Array Antennas by Ali Derakhshandeh, Stephan Pachnicke, Peter A. Hoeher

“…An underwater optical wireless communication system concept based on optical phased array antennas is presented. …”
Get full text

Wave Generation by a Finite Baffle Array in Application to Beam-Forming Analysis by Yuriy TASINKEVYCH

“…Directional excitation of sound in an aperiodic finite baffle system is analyzed using a method developed earlier in electrostatics. …”
Get full text

5G large-scale array antenna technology development and innovation direction by Shengjun LUO, Shenke ZHANG

“…In view of the current system architecture and technical solutions of 5G large-scale antennas,new technological developments and innovation directions were proposed,including low profile and light weight radiation element,high precision amplitude and phase calibration networks,all-in-one dense radiation arrays,and highly integrated antenna without reflection,antenna integrated filter,antenna and filter common module,mechanical phase shift and digital shaping combined,5G dual-band antenna,4G ＆amp; 5G intelligent antenna,etc.For each technological innovation direction,an overview and useful description were given.…”
Get full text

Array gain and phase calibration in the presence of multipath based on weighted spatial smoothing by WANG Bu-hong1, WANG Yong-liang2, CHEN Hui2

“…Despite the potential advantages offered by high-resolution direction-of-arrival(DOA)estimation methods, their application to real systems has been very limited. One of the main reasons for this situation is the lack of robustness of these methods to the perturbations in the array manifold. …”
Get full text

The use of active mixed-mode S-parameters to analyze differentially fed phased arrays by Yupeng Zheng, Shaoqiu Xiao

Get full text

Sparsity‐optimised farrow structure variable fractional delay filter for wideband array by Wenjing Zhou, Mingwei Shen, Min Xu, Guodong Han, Yudong Zhang

“…In wideband array, the SFS‐VFD filter effectively corrects the aperture effect and achieves precise beam pointing.…”
Get full text

Signal-domain speed-of-sound correction for ring-array-based photoacoustic tomography by Daohuai Jiang, Hengrong Lan, Shangqing Tong, Xianzeng Zhang, Fei Gao

Get full text

Antenna Array for Passive Radar: Configuration Design and Adaptive Approaches to Disturbance Cancellation by Michelangelo Villano, Fabiola Colone, Pierfrancesco Lombardo

“…We consider the selection of an antenna array configuration, composed of a small number of omnidirectional elements, to be exploited for passive radar sensors. …”
Get full text