Results 11 to 20 of about 8,968,637 (317)

Errors in Broadband Permittivity Determination Due to Liquid Surface Distortions in Semi-Open Test Cell

open access: yesRemote Sensing, 2021
We study how surface distortions of liquid samples due to a meniscus and a tilt of a semi-open coaxial test cell affect errors in a broadband permittivity determination.
Michał Kalisiak, Wojciech Wiatr
doaj   +1 more source

Correlation of Transmission Properties with Glucose Concentration in a Graphene-Based Microwave Resonator

open access: yesMicromachines, 2023
Carbon-based materials, such as graphene, exhibit interesting physical properties and have been recently investigated in sensing applications. In this paper, a novel technique for glucose concentration correlation with the resonant frequency of a ...
Muhammad Yasir   +2 more
doaj   +1 more source

RF Sensor with Graphene Film for HRP Concentration Detection

open access: yesC, 2023
This paper presents a radio-frequency (RF) antenna as a sensor to detect Horseradish peroxidase (HRP). At the core of the proposed approach is a graphene film deposited on a stub connected to an RF antenna. The graphene film is doctor bladed on the stub.
Fabio Peinetti   +2 more
doaj   +1 more source

Uncertainty Analysis of Scattering Parameters Calibrated by an Electronic Calibration Unit Based on a Residual Model

open access: yesIEEE Access, 2022
We propose a new residual model to analyze the uncertainty of scattering parameters (S-parameters) calibrated by an electronic calibration unit (ECU). Residual errors are usually estimated from the observed ripple after connecting a load or a short at ...
Chihyun Cho   +3 more
doaj   +1 more source

Washable Stitched Transmission Line for Wearable Applications [PDF]

open access: yesPhysics Access, 2021
In this paper the washability of a stitched transmission line is been studied. The aim is to determine the deterioration of the frequency dependence of the scattering parameters of the stitched transmission line after subjecting it to washing cycles ...
Isaac H Daniel   +3 more
doaj   +1 more source

Multiphase Dielectric Mixing Model for Concrete Mixtures

open access: yesIEEE Access, 2023
The advancement of high-power microwave technology has indeed brought about the possibility of E-bombs, also known as electromagnetic pulse (EMP) bombs.
Shereen Farhana   +2 more
doaj   +1 more source

Investigation of Material Loading on an Evolved Antecedent Hexagonal CSRR-Loaded Electrically Small Antenna

open access: yesSensors, 2023
Recent advances in embedded antenna and sensor technologies for 5G communications have galvanized a response toward the investigation of their electromagnetic performance for urban contexts and civil engineering applications.
Jake Peng Sean Ng   +3 more
doaj   +1 more source

Localization of Small Anomalies via the Orthogonality Sampling Method from Scattering Parameters

open access: yesElectronics, 2020
We investigate the application of the orthogonality sampling method (OSM) in microwave imaging for a fast localization of small anomalies from measured scattering parameters.
Seongje Chae, C. Ahn, W. Park
semanticscholar   +1 more source

Applicability of the Meniscus-Removal Method for Q-Band Liquid Characterization in Semi-Open Waveguide Cell

open access: yesSensors, 2023
We present the broadband transmission-reflection meniscus-removal method for liquid characterization in a semi-open rectangular waveguide. The algorithm utilizes 2-port scattering parameters measured with a calibrated vector network analyzer for three ...
Michał Kalisiak   +2 more
doaj   +1 more source

DNG Metamaterial Reflector Using SOCT Shaped Resonator for Microwave Applications

open access: yesIEEE Access, 2021
In this paper, the triple reflection band split O circled T (SOCT) shape metamaterial resonator is presented based on the transmission line principle.
Ahasanul Hoque   +3 more
doaj   +1 more source

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