Leong, K., Mazierska, J., Jacob, M.V., Ledenyov, D., and Batt, S. (2002) Comparing unloaded Q-factor of a high-Q dielectric resonator measured using the transmission mode and reflection mode methods involving S-parameters circle fitting. In: Microwave Symposium Digest 2002 (3) pp. 1665-1668. From: IEEE MTT-S International Microwave Symposium, 2-7 June 2002, Seattle, WA, USA.

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Abstract

A comparative study of unloaded Q-factor measurements of a TE011 mode sapphire dielectric resonator with unloaded Q-factor value of 731,000 at a frequency of 10 GHz and temperature of 65 K using two best Q-factor measurement methods are presented. The transmission (TMQF) and reflection methods are based on relevant multifrequency S-parameter measurements and circle-fitting procedures to compute the unloaded Q-factor of the resonator. For accurate comparison of the methods, a delay compensation procedure (introduced in the TMQF technique to remove delay due to noncalibrated cables) has been applied also to the reflection data.

Item ID:	14651
Item Type:	Conference Item (Research - E1)
ISBN:	978-0-7803-7240-5
ISSN:	0149-645X
Keywords:	Dielectric Resonators; Q-Factor; transmission and reflection mode methods
Date Deposited:	22 Aug 2012 02:58
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