Title :
On-chip spiral inductors synthesis by moving leastsquares approximation
Author :
Li, Yu ; Yang, Tang ; Yan, Wang
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
In this paper, moving least-squares approximation is firstly applied to synthesize on-chip spiral inductors. 41 circular inductors with different number of turns and different radii were fabricated. Their equivalent circuit parameters in double-¿ topology were extracted through linear regression. Moving least-squares approximation is employed to construct parameters values in any geometric dimensions of inductors according to parameters extracted from 36 inductors. To validate the effectiveness of proposed analysis, another 5 inductors is employed to demonstrate the synthesis results of inductor turns and radii. The synthesis is accurate with a frequency range from 100 MHz to 15 GHz in both quality factor and inductance. The results show that this method is useful in establishing scalable model according to geometric dimensions of inductors.
Keywords :
CMOS integrated circuits; Q-factor; UHF integrated circuits; equivalent circuits; field effect MMIC; inductors; least squares approximations; network topology; 1P6M RF CMOS process; circular inductors; double-¿ topology; equivalent circuit parameters; frequency 100 MHz to 15 GHz; inductance; linear regression; moving least-squares approximation; on-chip spiral inductors; quality factor; Circuit synthesis; Circuit topology; Equivalent circuits; Frequency synthesizers; Inductance; Inductors; Linear regression; Q factor; Solid modeling; Spirals; Spiral inductors synthesis; moving least -squares; parameter extraction; scalable;
Conference_Titel :
ASIC, 2009. ASICON '09. IEEE 8th International Conference on
Conference_Location :
Changsha, Hunan
Print_ISBN :
978-1-4244-3868-6
Electronic_ISBN :
978-1-4244-3870-9
DOI :
10.1109/ASICON.2009.5351337
