NDLI: Calculation and measurement of the effective chirality parameter of a composite chiral material over a wide frequency band

Content Provider	IEEE Xplore Digital Library
Author	Luebbers, R. Langdon, H.S. Hunsberger, F. Bohren, C.F. Yoshikawa, S.
Copyright Year	1963
Abstract	Materials that are effectively chiral at microwave frequencies can be fabricated by embedding identical, randomly oriented chiral inclusions, often metal helices, in a continuous matrix. We show that the chirality parameter can be calculated in the dilute limit using single scattering theory. The required tumble-averaged forward scattering by an individual inclusion is determined by the method of moments. Values of the effective chirality parameter are determined directly from the constitutive parameters of the matrix and the geometry and concentration of the inclusions. Comparisons are made with measurements previously reported in the literature. In addition, a chiral composite material was fabricated specifically to validate the calculations over frequencies including resonance. The measurements agree well with the calculations, providing quantitative values of the chirality parameter over a wide frequency band. It appears that the chirality parameter is appreciable only near the resonant frequencies of the inclusion. Finally, it is clear that an oscillator model can be used to describe the frequency dependence of the complex chirality parameter, and that therefore our results are consistent with the Kramers-Kronig relation.<>
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	123
Ending Page	130
Page Count	8
File Size	790259
File Format	PDF
ISSN	0018926X
Volume Number	43
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resonant frequency Inorganic materials Microwave frequencies Scattering parameters Moment methods Geometry Composite materials Resonance Frequency measurement Oscillators
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

New-Generation Chiral Metamaterials Based on Rectangular Split Ring Resonators With Small and Constant Chirality Over a Certain Frequency Band

Measurement of Dielectric Parameters at Microwave Frequencies by Cavity-Perturbation Technique

Measurement of dielectric parameters of small samples at X-band frequencies by cavity perturbation technique

Novel oscillator incorporating a compact microstrip resonant cell

Source-pull/load-pull oscillator measurements at microwave/MM wave frequencies

Operation of a Six-Cavity $S$ -Band Relativistic Magnetron at Frequencies in the Range of Its Resonant Response

A New Technique for the Direct Measurement of Y-Parameters at Microwave Frequencies

Loop-Gap Resonator: A Lumped Mode Microwave Resonant Structure

A New Method for Measuring Anisotropy at Microwave Frequencies

Calculation and measurement of the effective chirality parameter of a composite chiral material over a wide frequency band

Similar Documents

New-Generation Chiral Metamaterials Based on Rectangular Split Ring Resonators With Small and Constant Chirality Over a Certain Frequency Band

Measurement of Dielectric Parameters at Microwave Frequencies by Cavity-Perturbation Technique

Measurement of dielectric parameters of small samples at X-band frequencies by cavity perturbation technique

Novel oscillator incorporating a compact microstrip resonant cell

Source-pull/load-pull oscillator measurements at microwave/MM wave frequencies

Operation of a Six-Cavity $S$ -Band Relativistic Magnetron at Frequencies in the Range of Its Resonant Response

A New Technique for the Direct Measurement of Y-Parameters at Microwave Frequencies

Loop-Gap Resonator: A Lumped Mode Microwave Resonant Structure

A New Method for Measuring Anisotropy at Microwave Frequencies

Calculation and measurement of the effective chirality parameter of a composite chiral material over a wide frequency band