Results 1 to 10 of about 4,057 (212)
Microwave Near-Field Dynamical Tomography of Thorax at Pulmonary and Cardiovascular Activity [PDF]
Diagnostics, 2023 The developed near-field microwave diagnostics of dynamical lung tomography provide information about variations of air and blood content depth structure in the processes of breathing and heart beating that are unattainable for other available methods ...
Konstantin P. Gaikovich +6 more
doaj +2 more sources
Decoupling of Multifrequency Dipole Antenna Arrays for Microwave Imaging Applications [PDF]
International Journal of Antennas and Propagation, 2010 The mutual coupling between elements of a multifrequency dipole antenna array is experimentally investigated by S-parameter measurements and planar near-field scanning of the radiated field. A multifrequency array with six dipoles is analyzed.
E. Saenz +4 more
doaj +8 more sources
Low-Profile Fully-Printed Multifrequency Monopoles Loaded with Complementary Metamaterial Transmission Line [PDF]
Radioengineering, 2015 The design of a new class of multifrequency monopoles by loading a set of resonant-type complementary metamaterial transmission lines (CMTL) is firstly presented. Two types of CMTL elements are comprehensively explored: the former is the epsilon negative
Xue Li, Jinwen Tian
doaj +4 more sources
Performance Assessment of Multistatic/Multi-Frequency 3D GPR Imaging by Linear Microwave Tomography [PDF]
SensorsThe advent of multichannel ground-penetrating radar systems capable of acquiring multiview, multistatic, and multifrequency data is offering new possibilities to improve subsurface imaging performance.
Mehdi Masoodi +4 more
doaj +2 more sources
Subcranial Encephalic Temnograph-Shaped Helmet for Brain Stroke Monitoring [PDF]
SensorsIn this contribution, a wearable microwave imaging system for real-time monitoring of brain stroke in the post-acute stage is described and validated.
Antonio Cuccaro +4 more
doaj +2 more sources
Cascades of quasi-bound states in the continuum [PDF]
NanophotonicsFuture technologies aim to radically increase photonic integration, which can be achieved either by structuring the materials or by cleverly manipulating photonic resonances.
Solodovchenko Nikolay +3 more
doaj +2 more sources
Multifrequency Printed Antennas Loaded with Metamaterial Particles
Radioengineering, 2009 This paper provides a review of printed antennas loaded with metamaterial particles. This novel technique allows developing printed antennas with interesting features such as multifrequency (simultaneous operation over two or more frequency bands) and ...
D. Segovia-Vargas +5 more
doaj +3 more sources
Applied Sciences, 2023 The present work describes a new approach for the design of a Frequency-Selective Surface (FSS) in the context of frequency filters to increase isolation between two vehicle-borne antennas. A compact FSS design based on nested square meandered resonators
Ailyn Estévez +3 more
doaj +1 more source
Synthetic Aperture Imaging With Intensity-Only Data. [PDF]
, 2020 We consider imaging the reflectivity of scatterers from intensity-only data recorded by a single moving transducer that both emits and receives signals, forming a synthetic aperture.
Moscoso, Miguel +3 more
core +5 more sources
New Analysis and Design Techniques for Arbitrary Reactance Trap Dipoles
IEEE Open Journal of Antennas and Propagation, 2023 The work presents a significantly revised analysis of a classic resonator loaded antenna– the trap dipole. The authors demonstrate in calculation, simulation, and measurement that trap dipoles antennas are not matched or resonant at the same ...
Paul R. Winniford +3 more
doaj +1 more source