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221
Miniaturised ultra‐wideband circular polarised koch fractal crossed dipole array
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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222
Novel Two-Dimensional (2-D) Defected Ground Array for Planar Circuits
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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223
An array receiver scheme for reducing refraction induced artifacts in ultrasonic tof tomography
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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224
Frosting Characteristics of Horizontal Array Square Micropillar Surface under Natural Convection
Published 2021-01-01“…In this study, a micromachined array square micropillar metal surface was fabricated. …”
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225
Antenna Array for Passive Radar: Configuration Design and Adaptive Approaches to Disturbance Cancellation
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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226
An Improved Chaos Genetic Algorithm for T-Shaped MIMO Radar Antenna Array Optimization
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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227
A Frequency and Pattern Reconfigurable Antenna Array Based on Liquid Crystal Technology
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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228
Blind Direction-of-Arrival Estimation with Uniform Circular Array in Presence of Mutual Coupling
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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229
Synthesis of Thinned Concentric Circular Antenna Arrays Using Modified TLBO Algorithm
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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230
High-Resolution Collaborative Forward-Looking Imaging Using Distributed MIMO Arrays
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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231
Multiband in-band full-duplexing using fractal concentric circular antenna arrays
Published 2024-12-01“…This capability is powered by fractal antenna arrays, specifically using hexagonal star array (HSA) geometry. …”
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232
A Wideband and Low Sidelobe Magnetoelectric Dipole Antenna Array With Embedded Resistors
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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233
Depth‐Customizable 3D Electrode Array for Recording Functional Connectivity in the Brain
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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234
On Embedded Element Radiation Function and Beam Direction of Wide-Scanning Array Antennas
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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235
High-Resolution Reflected Wave Extraction and Imaging Enhancement for Array Acoustic Logging
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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236
Retrospective Spectrum-Conversion Method Based on Time-Modulated Van Atta Array
Published 2025-04-01Get full text
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237
A Joint Optimization Method for Power and Array of Multi-Point Sources System
Published 2025-07-01Get full text
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238
Sparsity‐optimised farrow structure variable fractional delay filter for wideband array
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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239
An Improved Antenna Array Pattern Synthesis Method Using Fast Fourier Transforms
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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240
Design of Excitation Circuit for Logging While Drilling Ultrasonic Array Logging Tool
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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