Results 51 to 60 of about 442,005 (317)
Merging of optoelectronic techniques for microwave signal generation [PDF]
, 2007 This paper describes some recent evolutions about optical generation of microwave signals. Among these, multiloop ring oscillator and harmonic generation allow both rise in frequency and wide tunability. Besides, using microresonators and optical sources
Le Kernec, Arnaud +5 more
core +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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Design study of a thermocouple power sensor as a monolithic fin-line [PDF]
, 2011 Making traceable power measurements above 110 GHz using current measurement technologies is challenging. We investigate a design of power sensor consisting of a thermocouple-based integrated circuit (IC) mounted as a finline component in WR-6 waveguide ...
Jonathan Scott +3 more
core +1 more source
Leida xuebaoThree-Dimensional (3D) Synthetic Aperture Radar (SAR) holds great potential for applications in fields such as mapping and disaster management, making it an important research focus in SAR technology. To advance the application and development of 3D SAR,
Xiaolan QIU +9 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal +3 more
wiley +1 more source
An investigation of minerals using microwave measurement of complex permittivity [PDF]
, 1990 Includes bibliography.Microwave measurement techniques have found many industrial and commercial applications. This measurement potential of microwaves, together with observations that different minerals show different microwave heating characteristics ...
Pendock, Graeme
core
Advanced Engineering Materials, EarlyView.This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source