Title :
Novel High-Q Inductor using Active Inductor Structure and Feedback Parallel Resonance Circuit
Author :
Seo, Sujin ; Ryu, Namsik ; Choi, Heungjae ; Jeong, Yongchae
Author_Institution :
Chonbuk Nat. Univ., Jeonju
Abstract :
This paper presents a novel high-Q inductor using conventional grounded active inductor and feedback parallel resonance circuit. The proposed high-Q inductor (HI) consists of the conventional active grounded inductor and feedback parallel resonance circuit which is composed of low-Q spiral inductor and capacitor. The novelty of the proposed structure is based on the increase of g-factor by feeding parallel resonance circuit into gyrator structure. The high-Q inductor is fabricated by 0.18 mum Hynix CMOS technology. The fabricated inductor shows inductance of above 45 nH and Q-factor of over 250 around 5 GHz.
Keywords :
CMOS integrated circuits; Q-factor; capacitors; gyrators; inductors; Hynix CMOS technology; Q-factor; capacitor; conventional grounded active inductor; feedback parallel resonance circuit; gyrator structure; high-Q inductor fabrication; low-Q spiral inductor; size 0.18 mum; Active inductors; CMOS technology; Capacitors; Feedback circuits; Gyrators; Inductance; Q factor; RLC circuits; Resonance; Spirals; Active inductor; Q-factor; feedback parallel resonance circuit; spiral inductor;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0530-0
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2007.380925
