IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Relationship between Q factor and complex resonant frequency: investigations using RLC series circuit
Takuichi Hirano
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2017 Volume 14 Issue 21 Pages 20170941

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Abstract

It is well known that Q factor can be calculated from complex resonant frequency of a non-excitation problem. However, two definitions are used to obtain Q factor from complex resonant frequency. One definition uses the real part of the complex frequency while the other uses an absolute value from the numerator of the Q factor. The meaning and difference of the two definitions is investigated using an RLC series circuit, and the findings are presented in this article.

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© 2017 by The Institute of Electronics, Information and Communication Engineers
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