CMOS impedance transforming balun filter with improvement of magnetic coupling to nearby spiral inductors

Peng Da Huang*, Wei Shin Chang, Chi-Yang Chang, Shih Ming Wang, Cheng Chung Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a novel balun filter in TSMC 0.18m 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.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2011
Subtitle of host publication"Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011
Pages107-110
Number of pages4
StatePublished - 1 Dec 2011
Event14th European Microwave Week 2011: "Wave to the Future", EuMW 2011 - 41st EuropeanMicrowave Conference, EuMC 2011 - Manchester, United Kingdom
Duration: 10 Oct 201113 Oct 2011

Publication series

NameEuropean Microwave Week 2011: "Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011

Conference

Conference14th European Microwave Week 2011: "Wave to the Future", EuMW 2011 - 41st EuropeanMicrowave Conference, EuMC 2011
CountryUnited Kingdom
CityManchester
Period10/10/1113/10/11

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    Huang, P. D., Chang, W. S., Chang, C-Y., Wang, S. M., & Chen, C. C. (2011). CMOS impedance transforming balun filter with improvement of magnetic coupling to nearby spiral inductors. In European Microwave Week 2011: "Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011 (pp. 107-110). [6101687] (European Microwave Week 2011: "Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011).