Showing 221 - 240 results of 3,757 for search 'effective array', query time: 0.12s Refine Results
  1. 221

    Miniaturised ultra‐wideband circular polarised koch fractal crossed dipole array by Won Min Choi, Taeyong Jeong, Dong Hwan Lee, Jun Hee Kim, Dong Geun Lee, Keum Cheol Hwang

    Published 2024-10-01
    “…The proposed antenna has demonstrated effective deployment in diverse communication systems and phased array applications within ultra‐wideband (UWB) CP environments.…”
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    Article
  2. 222

    Novel Two-Dimensional (2-D) Defected Ground Array for Planar Circuits by Haiwen Liu, Xiaowei Sun, Zhengfan Li

    Published 2004-01-01
    “…This paper presents a novel two-dimensional (2-D) defected ground array (DGA) for planar circuits, which has horizontal and vertical periodicities of defect structure. …”
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    Article
  3. 223

    An array receiver scheme for reducing refraction induced artifacts in ultrasonic tof tomography by K. SRINVASA RAO, T. M. SRINVASAN

    Published 2015-07-01
    “…The effectiveness of a three element experimental array receiver in reducing refraction induced artifacts in ultrasonic TOF tomography is evaluated. …”
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    Article
  4. 224

    Frosting Characteristics of Horizontal Array Square Micropillar Surface under Natural Convection by Zhang Tianlei, Zhao Yanjie

    Published 2021-01-01
    “…In this study, a micromachined array square micropillar metal surface was fabricated. …”
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    Article
  5. 225

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

    Published 2013-01-01
    “…We consider the selection of an antenna array configuration, composed of a small number of omnidirectional elements, to be exploited for passive radar sensors. …”
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    Article
  6. 226

    An Improved Chaos Genetic Algorithm for T-Shaped MIMO Radar Antenna Array Optimization by Xin Fu, Xianzhong Chen, Qingwen Hou, Zhengpeng Wang, Yixin Yin

    Published 2014-01-01
    “…Simulation results show that the algorithm is feasible and effective. Its performance is superior to the traditional genetic algorithm.…”
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  7. 227

    A Frequency and Pattern Reconfigurable Antenna Array Based on Liquid Crystal Technology by Yizhe Zhao, Cheng Huang, An-Yong Qing, Xiangang Luo

    Published 2017-01-01
    “…The LC substrate is used to support the patch array for controlling its resonance frequency, while the LC-based IMSL phase shifter is adopted to tune the transmission phase by changing the effective permittivity of the LC. …”
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  8. 228

    Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling by Song Liu, Lisheng Yang, Shizhong Yang, Qingping Jiang, Haowei Wu

    Published 2016-01-01
    “…A blind direction-of-arrival (DOA) estimation algorithm based on the estimation of signal parameters via rotational invariance techniques (ESPRIT) is proposed for a uniform circular array (UCA) when strong electromagnetic mutual coupling is present. …”
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  9. 229

    Synthesis of Thinned Concentric Circular Antenna Arrays Using Modified TLBO Algorithm by Zailei Luo, Xueming He, Xuedong Chen, Xin Luo, Xiaoqing Li

    Published 2015-01-01
    “…Teaching-learning-based optimization (TLBO) algorithm is a new kind of stochastic metaheuristic algorithm which has been proven effective and powerful in many engineering optimization problems. …”
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  10. 230

    High-Resolution Collaborative Forward-Looking Imaging Using Distributed MIMO Arrays by Shipei Shen, Xiaoli Niu, Jundong Guo, Zhaohui Zhang, Song Han

    Published 2024-10-01
    “…The forward-looking algorithm effectively transforms distributed arrays into a virtual long-aperture array, enabling high-resolution, high signal-to-noise ratio imaging with a single snapshot. …”
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  11. 231

    Multiband in-band full-duplexing using fractal concentric circular antenna arrays by Geili Elsanousi, Mohammed Abbas, Franz Hirtenfelder, Raed AbdAlhameed, Xin-She Yang, Tuan Le, Huan X. Nguyen

    Published 2024-12-01
    “…This capability is powered by fractal antenna arrays, specifically using hexagonal star array (HSA) geometry. …”
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  12. 232

    A Wideband and Low Sidelobe Magnetoelectric Dipole Antenna Array With Embedded Resistors by Jianhui Huang, Kwai-Man Luk

    Published 2025-01-01
    “…A simple and effective method, by using ‘0-1’ excitations, to reduce the sidelobe level (SLL) for a wideband magnetoelectric (ME) dipole antenna array is proposed. …”
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  13. 233

    Depth‐Customizable 3D Electrode Array for Recording Functional Connectivity in the Brain by Minseok Kim, Sehwan Park, Haeyun Lee, Jimin Lee, Namsun Chou, Hyogeun Shin

    Published 2025-08-01
    “…Due to its greater experimental flexibility, the depth‐customizable 3D electrode array developed in this study represents a versatile and cost‐effective tool for assessing functional connectivity across the entire brain.…”
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  14. 234

    On Embedded Element Radiation Function and Beam Direction of Wide-Scanning Array Antennas by Prabhat Khanal, Jian Yang

    Published 2024-01-01
    “…It validates the previously established formula of the embedded element radiation function, where the amplitude is proportional to <inline-formula> <tex-math notation="LaTeX">$\sqrt {\cos \theta }$ </tex-math></inline-formula>, based on the intuitive reasoning that the effective area of an element should be proportional to its projected area in the direction of interest angle <inline-formula> <tex-math notation="LaTeX">$\theta $ </tex-math></inline-formula>, provided that the array antenna has no grating lobes for the full scan, no surface waves, no losses, and active impedance matched. …”
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  15. 235

    High-Resolution Reflected Wave Extraction and Imaging Enhancement for Array Acoustic Logging by YUE Wenzheng, LIU Dongming, TIAN Bin, QIN Minjun

    Published 2024-12-01
    “…Array acoustic logging reflected wave imaging is an important technology to detect the geological structure and characteristics around the wellbore, especially in the evaluation of fracture-vuggy carbonate rocks and unconventional heterogeneous reservoir. …”
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    Sparsity‐optimised farrow structure variable fractional delay filter for wideband array by Wenjing Zhou, Mingwei Shen, Min Xu, Guodong Han, Yudong Zhang

    Published 2023-06-01
    “…Experimental results show that the SFS‐VFD filter reduces the complexity of the system by decreasing the use of multipliers and adders while ensuring high delay accuracy. In wideband array, the SFS‐VFD filter effectively corrects the aperture effect and achieves precise beam pointing.…”
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  19. 239

    An Improved Antenna Array Pattern Synthesis Method Using Fast Fourier Transforms by Xucun Wang, Yiguo Zhou, Yanfei Wang

    Published 2015-01-01
    “…An improved antenna array pattern synthesis method using fast Fourier transform is proposed, which can be effectively applied to the synthesis of large planar arrays with periodic structure. …”
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  20. 240

    Design of Excitation Circuit for Logging While Drilling Ultrasonic Array Logging Tool by WANG Yining, TAN Baohai, SU Yuanda, ZHANG Kai, WANG Zhichen, LING Zichen

    Published 2024-06-01
    “…The logging signal is clear and stable, which can effectively reflect the properties of the formation and provides a technical reference for array ultrasonic logging while drilling.…”
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    Article