Results 41 to 50 of about 523,138 (303)
A Sub-Aperture-Based Calibration Algorithm for MIMO Antenna Arrays
IEEE Open Journal of Antennas and PropagationIn order to ensure high-resolution angle estimation results, antenna apertures of radar sensors become large relative to the wavelength. To prevent high sidelobe levels, the number of antennas is constantly increased, generally through the employment of ...
Matthias Linder +4 more
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Development of a novel instrument for microwave dielectric thermal analysis [PDF]
, 2006 The advantages of microwave heating in industrial processing are becoming more widely appreciated and the technique is of increasing commercial significance.
Parkes, GMB +19 more
core +1 more source
Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source
Double resolution microwave holography [PDF]
, 1976 Includes bibliographical references.This thesis endeavours to record the development and subsequent evaluation of a simple technique for the recording of microwave holograms using common hardware components, which offers the possibility of significant ...
Nilsen, Christopher Shakespeare
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Spacial Energy Distribution Manipulation with Multi-focus Huygens Metamirror
Scientific Reports, 2017 Huygens metasurface is a planar array of crossed electric and magnetic dipoles, which provide specific surface current to tailor the electromagnetic field distribution.
Zhuochao Wang +3 more
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Wideband planar dipole based on dual-layer artificial magnetic conductor
The Journal of Engineering, 2019 A wideband planar dipole based on dual-layer artificial magnetic conductor (AMC) is designed. First, the size of dual-layer AMC is reduced by more than half, and the in-phase band is wider than the single-layer AMC.
Suyang Shi +3 more
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Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals
Advanced Functional Materials, EarlyView.Pd‐decorated ZnO colloidal crystal monolayers demonstrate excellent performance across a wide hydrogen concentration range at 33°C, with high selectivity and reproducible device fabrication. The sensors show strong responses even at low‐ppm H2 concentrations and an ultra‐low detection limit of 82 ppb, indicating their suitability for diverse hydrogen ...
Hamidah Alluhaybi +13 more
wiley +1 more source
Uncoupled Digital Radars Creating a Coherent Sensor Network
IEEE Journal of MicrowavesRadar networks offer the possibility to overcome the limitations of single sensors. However, without coherent signal processing, the full potential of radar networks cannot be exploited.
Julian Aguilar +4 more
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A Ku Wideband Circularly Polarized Microstrip Antenna Array with Low Profile Crossed-Dipole Element
International Journal of Antennas and Propagation, 2023 This paper presents a novel Ku wideband circularly polarized (CP) antenna array composed of crossed-dipole element (CDE) and fed through sequential rotation (SR) feeding technique.
Haipeng Liu, Yunhua Zhang, Xiaowen Zhao
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Design of Compact Quasi-Elliptic Bandpass Filters Based on Coaxial Inset Resonators
IEEE Access, 2023 This article reports a novel inset resonator configuration for coaxial filter applications with quasi-elliptic responses. The design and analysis of the inset resonator are discussed in detail and accurately modeled as a capacitively-loaded stepped ...
Abdulrahman Widaa +2 more
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