Review of methods for determining the loaded Q-factor of microwave resonators

Leong, Kenneth, Grabovickic, Robert, and Ceremuga, Janina (1996) Review of methods for determining the loaded Q-factor of microwave resonators. In: Proceedings of the Australian and New Zealand Institutes of Physics 20th Annual Condensed Matter Physics Meeting. TP30-TP30. From: ANZIP 1996: Australian and New Zealand Institutes of Physics 20th Annual Condensed Matter Physics Meeting, 30 January - 2 February 1996, Wagga Wagga, NSW.

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Abstract

Measurements of material properties such as loss tangent and surface resistance at microwave frequencies require the accurate determination of the quality factor Q of the resonating structure in which the sample is incorporated. We review various techniques used so far to determine the loaded quality factor Q(L) of microwave resonators. We also present a method developed to accurately obtain Q(L) from measurements of complex transmission coefficients S(21) close to the resonant frequency using fractional linear curve-fitting. Verification of the technique was done using a sapphire rod resonator with YBa2Cu3O7 end-plates.

Item ID: 28952
Item Type: Conference Item (Poster)
ISSN: 1037-1214
Date Deposited: 03 Oct 2013 02:06
FoR Codes: 10 TECHNOLOGY > 1005 Communications Technologies > 100505 Microwave and Millimetrewave Theory and Technology @ 100%
SEO Codes: 86 MANUFACTURING > 8615 Instrumentation > 861503 Scientific Instruments @ 80%
97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 20%
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