Synthesis of shared aperture thinned interleaved arrays with elements in concentric rings by Zhigang GU, Longjun LI, Jikuan HU

“…Among planar array antennas, concentric ring array (CRA) antennas have received considerable interest since it is symmetric and provides invariant beam pattern for 360° azimuthal coverage.In case of limited antenna aperture, there is great value to thinned interleaved CRA with low peak side lobe levels and a narrow main beam.The application of the cubic interpolation and density-weighting method in shared aperture array design was demonstrated by the low peak side lobe level synthesis of CRA.By adopting the Fourier-Bessel transform the relationship between the element’s excitation and array pattern, thinned interleaved problems were formulated as time-frequency synthesis problems.On the basis of the density-weighting method, element excitations of interleaved sub-array were carefully selected in an odd-even manner, which ensured the pattern matching of the generated sub-array.The iterative FFT algo rithm was adopted to thin the concentric ring array.Simulation results show that the proposed algorithm can achieve a favorable thinned and interleaved concentric ring array design with matched power patterns and low peak sidelobe levels.The problem of thinned and interleaved concentric ring arrays is solved, and the design of multi-function shared aperture thinned interleaved arrays with elements in concentric rings is realized.…”
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Synthesis of shared aperture thinned interleaved arrays with elements in concentric rings by Zhigang GU, Longjun LI, Jikuan HU

“…Among planar array antennas, concentric ring array (CRA) antennas have received considerable interest since it is symmetric and provides invariant beam pattern for 360° azimuthal coverage.In case of limited antenna aperture, there is great value to thinned interleaved CRA with low peak side lobe levels and a narrow main beam.The application of the cubic interpolation and density-weighting method in shared aperture array design was demonstrated by the low peak side lobe level synthesis of CRA.By adopting the Fourier-Bessel transform the relationship between the element’s excitation and array pattern, thinned interleaved problems were formulated as time-frequency synthesis problems.On the basis of the density-weighting method, element excitations of interleaved sub-array were carefully selected in an odd-even manner, which ensured the pattern matching of the generated sub-array.The iterative FFT algo rithm was adopted to thin the concentric ring array.Simulation results show that the proposed algorithm can achieve a favorable thinned and interleaved concentric ring array design with matched power patterns and low peak sidelobe levels.The problem of thinned and interleaved concentric ring arrays is solved, and the design of multi-function shared aperture thinned interleaved arrays with elements in concentric rings is realized.…”
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Research on the Acoustic Scattering Characteristics of Underwater Corner Reflector Linear Arrays by Dawei Xiao, Jingzhuo Zhang, Zichao Chu, Yi Luo

“…Simulation and experimental results revealed that increasing the number of corner reflectors significantly enhances the overall target strength, with a dual corner reflector array achieving an approximately 5 decibels higher target strength than a single corner reflector. …”
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Beamforming interferometry bathymetry method based on multi-coprime sensor array by Tian Zhou, Jiajun Shen, Jianjun Zhu, Wanyuan Zhang, Dongdong Peng

“…Recently, coprime array has been a popular research field in the application of direction-of-arrival estimation. …”
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Methods for Anomalous Azimuth Estimate Censoring in Small Element Antenna Arrays by M. E. Shevchenko, V. N. Malyshev, D. O. Zadirako, D. N. Faizullina, N. S. Stenyukov, M. S. Shmyrin

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An Electronically Controlled Resonant Microwave Sensor Array for Skin Tumor Detection by Junkai Bai, Hongfu Guo, Xuerui Lai

“…The application of microwave sensors in skin tumor detection has attracted a great deal of interest from researchers due to its safety, sensitivity, non-invasiveness, and low cost. …”
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CT Scatter Correction Based on Beam-hole Array and ADMM Algorithm by Haoxiang ZHAO, Xiaojie ZHAO, Ping CHEN, Jiaotong WEI

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Development of a High-Frequency Ophthalmic Real-Time Ultrasound Imaging System Based on a 20 MHz Annular-Array Transducer by Xiaochun Wang, Zemeng Li, Sheng Zhou

“…The high-frequency ophthalmic real-time ultrasound imaging system based on an annular-array transducer meets the needs of clinical diagnosis and has a good clinical application prospect.…”
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Phase Calibration of On-Chip Optical Phased Arrays via Interference Technique by Haiyang Zhang, Zixuan Zhang, Chao Peng, Weiwei Hu

“…Optical phased arrays (OPAs) are promising in various applications owing to their excellent beam steering performance but suffer from the random initial phases ruining the beam patterns. …”
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Angle-controllable RNA tiles for programable array assembly and RNA sensing by Qi Yang, Xu Chang, Jung Yeon Lee, Henry Wisniewski, You Zhou, Ashley D. Bernstein, Edward M. Bonder, Jason T. Kaelber, Teresa Wu, Giulia Pedrielli, Fei Zhang

“…Furthermore, we demonstrate the integration of split broccoli RNA aptamers into the multi-stranded monomer tiles, enabling fluorescence activation along linear arrays for programmable RNA sensing. The facile incorporation with RNA functional nanostructures highlights the vast potential of these RNA tiles in constructing more sophisticated nanostructures for diverse biomaterial applications.…”
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Study on the Transmission and the Field Enhancement of Bi-Rhombic Aperture Arrays Structure by Xue Zhang, Shuzhan Yan, Jiahao Zeng, Yun Fang

“…This paper presents a new bi-rhombic aperture arrays structure (BAAs) that exhibits high transmission and extraordinary field enhancement. …”
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Gated SPAD Arrays for Single-Photon Time-Resolved Imaging and Spectroscopy by Enrico Conca, Iris Cusini, Fabio Severini, Rudi Lussana, Franco Zappa, Federica Villa

“…In this paper, we present the architecture and the experimental characterization of an improved version of a previously developed 32 × 32 Single Photon Avalanche Diodes (SPADs) and Time to Digital Converters (TDCs) array, and two new arrays (with 8 × 8 and 128 × 1 pixels) with the additional capability of actively gating the detectors with sub-nanosecond rise time. …”
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Concentric Circular Antenna Array Synthesis Using Biogeography Based Optimization by Urvinder Singh, Tara Kamal

“…In this paper, BBO algorithm is developed to optimize the current excitations of concentric circular antenna arrays (CCAA). Concentric Circular Antenna Array (CCAA) has numerous attractive features that make it essential in mobile and communication applications. …”
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Double array system identification research based on LSTM neural network by Chunhua Gao, Mingyang Wang, Yifei Sima, Zihan Yuan

“…The earthquake simulation shaking table array is an important experimental equipment with a wide range of applications in the field of earthquake engineering. …”
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Spatial Spectrum-Based Imaging for UWB Through-the-Wall MIMO Arrays by Biying Lu, Xin Sun, Yang Zhao, Zhimin Zhou

“…To keep the system complexity at a reasonable level and conform to the propagation demands, MIMO arrays are usually sparse in through-the-wall applications, which results in corrupted and gapped data. …”
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Investigation of Segmented Halbach Array Design for Passive Magnetorheological Brake System by Yaojung Shiao, Manichandra Bollepelly

“…The Halbach array is a significant advancement in designing permanent magnets with a specialized arrangement due to their unique capacity to generate strong unidirectional magnetic fields, which have attracted substantial attention in various applications. …”
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Strengthening of Inertial Dust Removal in Impingement Flow Dust Removal Array by HE Ge, HU Xianfeng, LIU Zekun, CHEN Kehong, WEI Wenyun, YU Hui

“…Based on the numerical simulation results, the research group designs and produces a physical model of a 6 mm equidistant dust removal array for experiments. …”
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Oxide Phototransistor Array With Multiply-and-Accumulation Functions for In-Sensor Image Processing by Saisai Wang, Xiaotao Jing, Wanlin Zhang, Rui Wang, Hong Wang, Qi Huang

“…However, most existing in-sensor computing devices are plagued by a complex structure, and the uniformity of the sensor array is difficult to ensure. …”
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Producing peptide arrays for epitope mapping by intein-mediated protein ligation by Luo Sun, John Rush, Inca Ghosh, Jeremy R. Maunus, Ming-Qun Xu

“…This novel approach allows for synthetic peptides to be uniformly arrayed onto membranes, compatible with a variety of applications.…”
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2D materials-based crossbar array for neuromorphic computing hardware by Hyeon Ji Lee, Sungwoo Park, Juhui Kim, Min Hyuk Park, Jihyun Kim, Jung Ah Lim, Ho Won Jang

“…Lastly, we address the challenges that hardware implementation of neuromorphic computing systems currently face and propose a path towards system-level applications of neuromorphic computing.…”
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