Results 1 to 10 of about 19,546 (260)

Microwave Sensors Based on Resonant Elements [PDF]

Sensors, 2020
This paper highlights interest in the implementation of microwave sensors based on resonant elements, the subject of a special issue in the journal.
Ferran Martín, Paris Vélez, Marta Gil
doaj   +6 more sources

Microwave Sensors for In Situ Monitoring of Trace Metals in Polluted Water [PDF]

Sensors, 2021
Thousands of pollutants are threatening our water supply, putting at risk human and environmental health. Between them, trace metals are of significant concern, due to their high toxicity at low concentrations.
Ilaria Frau, Stephen Wylie, Patrick Byrne, Patrizia Onnis, Jeff Cullen, Alex Mason, Olga Korostynska   +6 more
doaj   +2 more sources

Microwave Sensors for Breast Cancer Detection [PDF]

Sensors, 2018
Breast cancer is the leading cause of death among females, early diagnostic methods with suitable treatments improve the 5-year survival rates significantly.
Lulu Wang
doaj   +2 more sources

A Review of Recent Results on Simultaneous Interrogation of Multiple Fiber Bragg Grating-Based Sensors Using Microwave Photonics

Applied Sciences, 2019
We review recent results on exploiting microwave photonics to enable simultaneous interrogation of multiple fiber Bragg grating (FBG)-based sensors. In particular, we describe the use of (1) microwave photonic filtering and (2) chirped microwave pulse ...
Lawrence R. Chen, Maria-Iulia Comanici, Parisa Moslemi, Jingjing Hu, Peter Kung   +4 more
doaj   +3 more sources

A Comparative Study of Narrow/Ultra-Wideband Microwave Sensors for the Continuous Monitoring of Vital Signs and Lung Water Level [PDF]

Sensors
This article presents an in-depth investigation of wearable microwave antenna sensors (MASs) used for vital sign detection (VSD) and lung water level (LWL) monitoring.
Anwer S. Abd El-Hameed, Dalia M. Elsheakh, Gomaa M. Elashry, Esmat A. Abdallah   +3 more
doaj   +2 more sources

Microwave Sensors and Their Applications in Permittivity Measurement. [PDF]

Sensors (Basel)
This paper reviews microwave sensors and their applications in permittivity measurement. The detection, diagnosis, classification, and monitoring without contact and invasion have been the subject of numerous studies based on permittivity characteristics tracking. This review illustrates many new types of research in recent years.
Liu C, Liao C, Peng Y, Zhang W, Wu B, Yang P.   +5 more
europepmc   +4 more sources

Planar Phase-Variation Microwave Sensors for Material Characterization: A Review and Comparison of Various Approaches [PDF]

Sensors, 2021
Paris Velez, Marta Gil Barba, FERRÁN Martin   +2 more
exaly   +2 more sources

Heterodyne sensing of microwaves with a quantum sensor [PDF]

Nature Communications, 2021
AbstractDiamond quantum sensors are sensitive to weak microwave magnetic fields resonant to the spin transitions. However, the spectral resolution in such protocols is ultimately limited by the sensor lifetime. Here, we demonstrate a heterodyne detection method for microwaves (MW) leading to a lifetime independent spectral resolution in the GHz range ...
Jonas Meinel, Vadim Vorobyov, Boris Yavkin, Durga Dasari, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Jörg Wrachtrup   +7 more
openaire   +6 more sources

Design and Analysis of a Novel Wide-Angle Scanning Stub-Loaded Cavity Array Element

IEEE Open Journal of Antennas and Propagation, 2022
A novel design methodology is presented to mitigate scan blindness in cavity antenna arrays without the need for any changes on the radiating structure itself.
Tobias Chaloun, Patrik Gruner, Wolfgang Menzel   +2 more
doaj   +1 more source

A low‐loss Ka‐band waveguide to substrate integrated waveguide transition based on ridged stepped‐impedance transformer

Electronics Letters, 2021
A low‐loss Ka‐band transition from waveguide to substrate integrated waveguide (SIW) is presented based on ridge waveguide stepped‐impedance transformer.
J. A. García Pérez, G. Goussetis, H. Fan, Y. Ding   +3 more
doaj   +1 more source