Title :
S-parameter formulation of quality factor for a spiral inductor in generalized two-port configuration
Author :
Horng, T.S. ; Peng, K.C. ; Jau, J.-K. ; Tsai, Y.-S.
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
In this paper, we present the most rigorous S-parameter formulation of quality (Q) factor that has ever been seen for a spiral inductor in generalized two-port configuration. The derivation employs a complex power concept and can reduce to the conventional Q-factor expression based on one-port inductor model with the second port grounded. The Q factor of a tank circuit that connects the spiral inductor with an ideally lossless capacitor in series or in parallel can be also predicted successfully using this Q-parameter formulation.
Keywords :
Q-factor; S-parameters; inductors; two-port networks; S-parameter; complex power model; lossless capacitor; quality factor; spiral inductor; tank circuit; two-port configuration; Energy loss; Impedance; Inductors; Q factor; Radiofrequency integrated circuits; Reflection; Scattering parameters; Shunt (electrical); Spirals; Voltage;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2003 IEEE
Print_ISBN :
0-7803-7694-3
DOI :
10.1109/RFIC.2003.1213938
