Abstract:

Group delay with microwave single-port group network is deduced in this paper.The relevance between the S-parameter and Q-factor of resonator is obtained by deducing the group delay characteristic of shunt-resonant circuit and series-resonance circuit.The variation of group delay characteristics with two different loads are analyzed,indicating the fact that single-port network does not vary with the change in loads,a valuable conclusion for the study of external coupling characteristics of the resonator.

Key words: single-port network;group delay;resonator;external coupling