Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Susceptibility, Permittivity and Dielectric Constant01:26

Susceptibility, Permittivity and Dielectric Constant

2.4K
When placed in an external electric field, a dielectric material gets polarized. The charge density in the dielectric material is given by the sum of the bound and free charge densities, while the total charge density can also be written in terms of the total electric field. The bound charge density can be measured in terms of polarization, leading to the relationship between electric displacement and polarization.
2.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Determination of dielectric properties of plaster blocks for sealing masonry using non-destructive frequency scanning methods.

PloS one·2023
Same author

A new tunable bandstop filter square-ring resonator using varactor diodes.

PloS one·2023
Same author

Non-Ionizing Radiation Measurements for Trajectography Radars.

Sensors (Basel, Switzerland)·2022
Same author

CSRR-Based Microwave Sensor for Dielectric Materials Characterization Applied to Soil Water Content Determination.

Sensors (Basel, Switzerland)·2020

Related Experiment Video

Updated: Dec 1, 2025

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
10:35

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

12.6K

A New Planar Microwave Sensor for Building Materials Complex Permittivity Characterization.

João G D Oliveira1,2, José G Duarte Junior1, Erica N M G Pinto3

  • 1Department of Communication Engineering, Federal University of Rio Grande do Norte, Caixa Postal 1655, Natal CEP 59078-970, RN, Brazil.

Sensors (Basel, Switzerland)
|November 11, 2020
PubMed
Summary

A novel microwave sensor accurately measures the complex relative permittivity of building materials like concrete. This sensor uses a unique antenna design and scattering parameter analysis for reliable material characterization.

Keywords:
concrete characterizationdielectric measurementshigh directivitylog-periodicmicrostrip antennamicrowave sensor

More Related Videos

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
11:30

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

Published on: March 6, 2017

12.0K
Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.7K

Related Experiment Videos

Last Updated: Dec 1, 2025

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
10:35

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

12.6K
Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
11:30

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

Published on: March 6, 2017

12.0K
Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.7K

Area of Science:

  • Electrical Engineering
  • Materials Science
  • Electromagnetics

Background:

  • Accurate characterization of building material properties is crucial for structural integrity and performance.
  • Non-destructive testing methods are essential for evaluating existing structures without causing damage.

Purpose of the Study:

  • To propose and validate a new microwave sensor for characterizing the complex relative permittivity of non-magnetic building materials.
  • To demonstrate the sensor's effectiveness in analyzing concrete samples.

Main Methods:

  • Design of a log-periodic planar antenna sensor with tilted microstrip elements on a dielectric layer.
  • Measurement of scattering parameters (S11 and S21) in a free-space transmitter-receiver setup (LOS and NLOS).
  • Application of the Nicolson-Ross-Weir (NRW) method to determine complex relative permittivity from measured data.

Main Results:

  • Successful fabrication and measurement of a sensor prototype for concrete samples.
  • Complex relative permittivity values obtained for concrete are consistent with literature data.
  • A small difference (4.71%) between simulated and measured resonant frequencies validates the prototype.

Conclusions:

  • The developed microwave sensor provides an efficient and accurate method for determining the complex relative permittivity of building materials.
  • The sensor design and measurement setup are suitable for characterizing various solid and liquid dielectric materials.
  • This technique offers a valuable tool for material science and civil engineering applications.