DocumentCode
558044
Title
CMOS impedance transforming balun filter with improvement of magnetic coupling to nearby spiral inductors
Author
Huang, Peng-Da ; Chang, Wei-Shin ; Chang, Chi-Yang ; Wang, Shih-Ming ; Chen, Cheng-Chung
Author_Institution
Dept. of Commun. Eng., Nat. ChiaoTung Univ., Hsinchu, Taiwan
fYear
2011
fDate
10-13 Oct. 2011
Firstpage
107
Lastpage
110
Abstract
This paper presents a novel balun filter in TSMC 0.18μm CMOS technology which can suppress the magnetic coupling with nearby on-chip spiral inductors. The proposed balun filter keeps major requirements of a traditional coupled spiral inductor balun used in the output stage of a PA (power amplifier) such as center tap for DC bias, controllable impedance transformation ratio, good out-of-phase performance, etc. This new structure can achieve a maximum of 18 dB suppression of magnetic coupling to the nearby spiral inductor.
Keywords
CMOS integrated circuits; baluns; inductors; CMOS impedance transforming balun filter; CMOS technology; DC bias; controllable impedance transformation ratio; coupled spiral inductor balun; magnetic coupling; on-chip spiral inductors; power amplifier; CMOS integrated circuits; Couplings; Impedance matching; Inductors; Magnetic separation; Microwave filters; Spirals;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference (EuMC), 2011 41st European
Conference_Location
Manchester
Print_ISBN
978-1-61284-235-6
Type
conf
Filename
6101687
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