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A Low Cross-Polarization Microstrip Antenna Array for Millimeter Wave Applications
Published 2023-01-01“…The proposed compact size and low cross-polarization antenna array might be a good choice for phased array radar and 5th generation (5G) mobile communication applications.…”
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42
Multiobjective Synthesis of Linear Arrays by Using an Improved Genetic Algorithm
Published 2019-01-01“…The proposed method is compared with real number particle swarm optimization (RNPSO) and quantized particle swarm optimization (QPSO) as applied in the pattern synthesis of a linear thinned array and a digital phased array. The numerical examples show that IGA-DWV can achieve a high performance with a lower SLL and more accurate nulls.…”
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43
A Broadband and High Gain Tapered Slot Antenna for W-Band Imaging Array Applications
Published 2014-01-01“…This antenna can be applied to mm-wave phased array, imaging array for plasma diagnostics applications.…”
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44
Design of Multilevel Sequential Rotation Feeding Networks Used for Circularly Polarized Microstrip Antenna Arrays
Published 2012-01-01“…They can find wide applications in phased array radar and satellite communication systems.…”
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45
Investigation on Harmonic Tuning for Active Ku-Band Rectangular Dielectric Resonator Antennas
Published 2008-01-01“…A slot-coupled rectangular dielectric resonator antenna (DRA) operating in the 14–14.5 GHz frequency band is investigated as a possible radiating element for an active integrated antenna of a transmitting phased array. The effectiveness of the resonator shape factor on achieving harmonic tuning is addressed. …”
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46
Challenges and Innovations in CMOS-Based 300-GHz Transceivers for High-Speed Wireless Communication
Published 2025-01-01“…This article discusses the challenges of implementing CMOS transceivers at such high frequencies, focusing on power amplification, phased array architectures, and low-power, high-speed demodulation circuits. …”
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47
SAR Experiments Using a Conformal Antenna Array Radar Demonstrator
Published 2012-01-01“…For practical trials the antenna has been adapted for operation with the Phased Array Multifunctional Imaging Radar (PAMIR) system developed at the institute. …”
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48
Synthesis of frequency diverse array with large null depths via a hybrid optimisation approach of mayfly algorithm and convex programing
Published 2022-12-01“…Abstract By controlling the null distribution in the range‐angle dimension, the frequency diverse array (FDA) can handle range‐dependent interference, which is usually difficult to solve for the traditional phased array. However, the current investigations focus more on the design of weights for null control, ignoring the unique design dimension of FDA, that is, the frequency offsets. …”
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49
A Novel Coherence Reduction Method in Compressed Sensing for DOA Estimation
Published 2013-01-01“…This method is then extended to a more practical condition when highly coherent columns and incoherent columns are considered, for example, the direction of arrival (DOA) estimation problem in phased array radar system using compressed sensing. Numerical simulations show that the proposed method succeeds in identifying multiple targets in a sparse radar scene, where the compressed sensing method based on the original sensing matrix fails. …”
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50
An Improved Peak Sidelobe Reduction Method for Subarrayed Beam Scanning
Published 2015-01-01“…This paper focused on PSL (peak sidelobe level) reduction for subarrayed beam scanning in phased array radars. The desired GSP (Gaussian Subarray Patterns) are achieved by creating a subarray weighting network. …”
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51
Effects of Atmospheric Refraction on an Airborne Weather Radar Detection and Correction Method
Published 2015-01-01“…Using three types of typical atmospheric background sounding data, we established a simulation model for an actual transmission path and a fitted correction path of an airborne weather radar beam during airplane take-offs and landings based on initial flight parameters and X-band airborne phased-array weather radar parameters. Errors in an ideal electromagnetic beam propagation path are much greater than those of a fitted path when atmospheric refraction is not considered. …”
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52
Stepped Frequency Pulse Frequency Diverse Array Radar for Target Localization in Angle and Range Domains
Published 2018-01-01“…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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53
A Novel Linear Sparse Array with Reconfigurable Pixel Antenna Elements
Published 2020-01-01“…Simulation results show that the gain fluctuation and sidelobe level of the array during beam scanning have significant advantages over the previous phased array, and the generation of antenna grating lobes is avoided. …”
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54
The role of non-alcoholic fatty liver disease in the formation of atherosclerotic vascular lesions in patients with abdominal obesity
Published 2018-08-01“…Measurement of the intima-media complex thickness of the common carotid artery (IMT CCA) was performed by standard procedures at Voluson 730 Expert device, equipped with 7,5 MHz linear phased array transducer. The presence of early atherosclerotic markers was evaluated by local thickening of the IMT CCA over 0.86 mm in any point of the carotid artery (IMT CCA max). …”
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55
Advanced Metasurface-Based Antennas: A Review
Published 2025-01-01“…The last part is about the further applications of metasurface, including multi-folding reflectarray/transmitarray, wide-angle scanning phased array antenna, and filtering antenna. In conclusion, the researches of metasurface have overcome the shortcomings of conventional antennas and proposed some good solutions to realize innovative antennas.…”
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56
Characterizing Tidal Marsh Inundation with Synthetic Aperture Radar, Radiometric Modeling, and In Situ Water Level Observations
Published 2025-01-01“…L-band SAR backscatter threshold inundation products were also compared to polarimetric decompositions from quad-polarimetric Phased Array L-band Synthetic Aperture Radar 2 (PALSAR-2) and L-band Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) imagery. …”
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57
Development of a 50K SNP array for whole-genome analysis and its application in the genetic localization of eggplant (Solanum melongena L.) fruit shape
Published 2024-11-01“…The 50K SNP liquid-phase array can be widely used in future eggplant molecular breeding research.…”
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58
Metasurface spatial filters for multiple harmonic signals
Published 2023-03-01“…The metasurface designed to have a one-dimensional gradient phase array produces cross-polarized reflection waves with different beam steering angles at the third- and fifth-harmonic frequencies (15 and 25 GHz) and operates as a metallic mirror at the fundamental frequency of 5 GHz. …”
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59
A comprehensive review of metasurface-assisted direction-of-arrival estimation
Published 2024-10-01“…In terms of the development of algorithms, metasurfaces can help innovate traditional estimation algorithms as an excellent alternative to phased arrays. New types of artificial intelligence continue to impact traditional algorithms as well as the detection of the incoming wave direction. …”
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