Results 11 to 20 of about 27,516 (298)
Review of Recent Microwave Planar Resonator-Based Sensors: Techniques of Complex Permittivity Extraction, Applications, Open Challenges and Future Research Directions [PDF]
Sensors, 2021 Recent developments in the field of microwave planar sensors have led to a renewed interest in industrial, chemical, biological and medical applications that are capable of performing real-time and non-invasive measurement of material properties.
Rammah Ali Alahnomi +6 more
doaj +2 more sources
Microwave Devices for Wearable Sensors and IoT
Sensors, 2023 The Internet of Things (IoT) paradigm is currently highly demanded in multiple scenarios and in particular plays an important role in solving medical-related challenges. RF and microwave technologies, coupled with wireless energy transfer, are interesting candidates because of their inherent contactless spectrometric capabilities and for the wireless ...
Costanzo A. +5 more
openaire +5 more sources
Sensors, 2019 This paper compares two types of microfluidic sensors that are designed for operation in ISM (Industrial, Scientific, Medical) bands at microwave frequencies of 2.45 GHz and 5.8 GHz. In the case of the first sensor, the principle of operation is based on
Karol Malecha +5 more
doaj +2 more sources
Matrix Pencil Method for Vital Sign Detection from Signals Acquired by Microwave Sensors. [PDF]
Sensors (Basel), 2021 Microwave sensors have recently been introduced as high-temporal resolution sensors, which could be used in the contactless monitoring of artery pulsation and breathing. However, accurate and efficient signal processing methods are still required.
Chamaani S +3 more
europepmc +2 more sources
Microwave resonant sensors [PDF]
Microwave resonant sensors use the spectral characterisation of a resonator to make high sensitivity measurements of material electromagnetic properties at GHz frequencies. They have been applied to a wide range of industrial and scientific measurements, and used to study a diversity of physical phenomena.
Naylon, Alexander
openaire +1 more source
Highly Sensitive Microwave Sensors Based on Open Complementary Square Split-Ring Resonator for Sensing Liquid Materials. [PDF]
Sensors (Basel)This paper presents high-sensitivity sensors based on an open complementary square split-ring resonator and a modified open complementary split-ring resonator operating at 4.5 GHz and 3.4 GHz, respectively.
Ds C, Nagini KBSS, Barik RK, Koziel S.
europepmc +2 more sources
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 +3 more
doaj +1 more source
Sensors International, 2023 Microwave sensors offer appealing features such as susceptibility, quick response, and non-invasiveness, making them valuable tools for highly accurate measurements of material characterisation.
Nazmus Sakib Khair +5 more
doaj +1 more source
IEEE Access, 2021 In this paper, a comprehensive review of portable microwave sensors for monitoring moisture content (MC) is presented. MC monitoring is crucial in different industries, particularly food and farming. Microwave-based approaches for measuring the MC of the
Nima Javanbakht +2 more
doaj +1 more source
A Microwave System for Relative Humidity Measurement [PDF]
, 1999 This paper deals with a microwave hygrometer that is based on the sensitivity of air permettivity to humidity. The hygrometer embeds a microwave generator which feeds two different channels.
A. Ferrero +5 more
core +1 more source