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

Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

1.4K
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's...
1.4K
Thin-Walled Hollow Shafts01:15

Thin-Walled Hollow Shafts

277
In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution...
277
Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

5.2K
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
5.2K
Spherical and Cylindrical Capacitor01:26

Spherical and Cylindrical Capacitor

6.1K
A spherical capacitor consists of two concentric conducting spherical shells of radii R1 (inner shell) and R2 (outer shell). The shells have  equal and opposite charges of +Q and −Q, respectively. For an isolated conducting spherical capacitor, the radius of the outer shell can be considered to be infinite.
Conventionally, considering the  symmetry, the electric field between the concentric shells of a spherical capacitor is directed radially outward. The magnitude of the field,...
6.1K
Gauss's Law in Dielectrics01:17

Gauss's Law in Dielectrics

4.7K
Consider a polar dielectric placed in an external field. In such a dielectric, opposite charges on adjacent dipoles neutralize each other, such that the net charge within the dielectric is zero. When a polar dielectric is inserted in between the capacitor plates, an electric field is generated due to the presence of net charges near the edge of the dielectric and the metal plates interface. Since the external electrical field merely aligns the dipoles, the dielectric as a whole is neutral. An...
4.7K
Plastic Deformation in Circular Shafts01:20

Plastic Deformation in Circular Shafts

268
When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
268

You might also read

Related Articles

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

Sort by
Same author

Fabrication and Characterization of Three-Dimensional Microelectromechanical System Coaxial Socket Device for Semiconductor Package Testing.

Sensors (Basel, Switzerland)·2023
Same author

Ultrafast van der Waals diode using graphene quantum capacitance and Fermi-level depinning.

Science advances·2023
Same author

Passive Type Reconfigurable Intelligent Surface: Measurement of Radiation Patterns.

Micromachines·2023
Same author

Parameters and Measurement Techniques of Reconfigurable Intelligent Surfaces.

Micromachines·2022
Same author

A Study on Millimeter Wave SAR Imaging for Non-Destructive Testing of Rebar in Reinforced Concrete.

Sensors (Basel, Switzerland)·2022
Same author

Review of Intentional Electromagnetic Interference on UAV Sensor Modules and Experimental Study.

Sensors (Basel, Switzerland)·2022

Related Experiment Video

Updated: Oct 3, 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

12.4K

RCS Estimation of Singly Curved Dielectric Shell Structure with PMCHWT Method and Experimental Verification.

Hyeong-Rae Im1, Woobin Kim1, Yeong-Hoon Noh1

  • 1Department of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Korea.

Sensors (Basel, Switzerland)
|February 15, 2022
PubMed
Summary

This study presents a numerical algorithm for analyzing electromagnetic scattering from curved dielectric structures, verified experimentally. The Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) method accurately predicts radar cross-section (RCS) for aircraft canopies.

Keywords:
Poggio–Miller–Chang–Harrington–Wu–Tsai (PMCHWT)method of moment (MoM)monostatic RCS measurementradar cross section (RCS)singly curved dielectric

More Related Videos

Assembly and Characterization of Polyelectrolyte Complex Micelles
08:44

Assembly and Characterization of Polyelectrolyte Complex Micelles

Published on: March 2, 2020

11.0K
Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

12.4K

Related Experiment Videos

Last Updated: Oct 3, 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

12.4K
Assembly and Characterization of Polyelectrolyte Complex Micelles
08:44

Assembly and Characterization of Polyelectrolyte Complex Micelles

Published on: March 2, 2020

11.0K
Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

12.4K

Area of Science:

  • Electromagnetic theory
  • Computational electromagnetics
  • Materials science

Background:

  • Accurate electromagnetic scattering analysis is crucial for stealth technology and radar cross-section (RCS) prediction.
  • Dielectric structures, particularly singly curved ones, present unique challenges in electromagnetic analysis.
  • Existing methods may lack efficiency or accuracy for complex geometries like aircraft canopies.

Purpose of the Study:

  • To develop and validate a numerical algorithm for the electromagnetic scattering analysis of singly curved dielectric structures.
  • To apply the developed algorithm to realistic scenarios, such as fighter aircraft canopies.
  • To provide experimental verification for the numerical method's accuracy.

Main Methods:

  • Utilized the Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) method, a Method of Moments (MoM)-based solution.
  • Employed the Electric Field Integral Equation (EFIE) formulation for multi-region dielectric scattering.
  • Implemented the PMCHWT algorithm in C++ and conducted bistatic RCS calculations for canonical structures.

Main Results:

  • The PMCHWT algorithm demonstrated accuracy in calculating bistatic RCS for both conductive and dielectric canonical structures.
  • Experimental RCS measurements were performed under quasi-anechoic conditions, including calibration methods.
  • Excellent agreement was observed between analytical PMCHWT results and experimental monostatic RCS data for singly curved dielectric structures.

Conclusions:

  • The developed PMCHWT-based numerical algorithm is a reliable tool for electromagnetic scattering analysis of singly curved dielectric structures.
  • The method shows significant potential for application in analyzing complex geometries, such as fighter aircraft components.
  • Experimental validation confirms the accuracy and effectiveness of the proposed numerical approach.