Method of measuring loaded Q-factor of single-ended cavity resonators using reflection bridge.
A bridge method of determining the loaded Q-factor and coupling coefficient of single-ended cavity resonators is described. The measuring system consists of a hybrid-T or ''magic T'' bridge with one of the collinear arms terminated by the cavity and the other by a precision attenuator followed by a variable precision short. The experimental procedure essentially measures the reflection coefficient of a cavity resonator as a function of frequency by balancing the bridge, using an oscillator with variable frequency amplitude modulation as the source.
Ghosh
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Institute of Radio Physics and Electronics, University College of Technology, 92 Acharya Prafulla Chandra Road, Calcutta, India.
Sen
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Dasgupta
D
D
Saha
P K
PK