Resonant frequencies and Q factors of dielectric parallelepipeds

Author

Trueman, C.W. ; Mishra, S.R. ; Larose, C.L. ; Mongia, R.K.

Author_Institution

Concordia Univ., Montreal, Que., Canada

Volume

44

Issue

2

fYear

1995

fDate

4/1/1995 12:00:00 AM

Firstpage

322

Lastpage

325

Abstract

This paper describes the measurement and computation of the resonant frequencies and the associated Q factors of low-loss ceramic parallelepipeds with relative permittivity 37.84 and 79.46. Each sharp resonance peak is measured separately with a fine frequency step. The calculation uses FDTD to compute the initial portion of the backscattered field as a function of time, due to a Gaussian pulse plane wave. The transient response is extended in time to zero value by Prony´s method, The measured and computed resonant frequencies and Q factors are presented for two parallelepiped orientations and are in good agreement

Keywords

Q-factor measurement; dielectric resonators; finite difference time-domain analysis; microwave measurement; radar cross-sections; Gaussian pulse plane wave; Prony´s method; Q factors; backscattered field; dielectric parallelepipeds; fine frequency step; low-loss ceramic parallelepipeds; parallelepiped orientations; relative permittivity; resonant frequencies; sharp resonance peak; transient response; Ceramics; Concurrent computing; Dielectric measurements; Finite difference methods; Frequency measurement; Permittivity measurement; Q factor; Q measurement; Resonance; Resonant frequency;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.377842

Filename

377842