Design of a 60/77 GHz dual-band bandpass filter with MMIC technology

H. L. Kao*, S. P. Shih, C. S. Yeh, S. S. Lee, Y. C. Lee, J. Y. Ke, Jeffrey S. Fu, L. C. Chang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This paper has presented a novel dual-band bandpass filter with two sets of resonators based on stepped-impedance, which can achieve size reduction. Two sets of resonators are employed in the filter, one resonate at the 60 GHz and the other at the 77 GHz. The dual-band filter can be realized flexible passband and bandwidth selections by utilizing impedance varying and source-load coupling. The fractional 3-dB bandwidths of 60 and 77 GHz are 7.1% and 7%, respectively. The |S21| of 60 and 77 GHz are -1.66 dB and -1.89dB and |S11| of 60 and 77 GHz are -22 dB and -16 dB, respectively. Between two passbands, the transmission zero at 68 GHz is nearly 40 dB isolation. Good performance and small size make it attractive for wireless communications.

Original languageEnglish
Title of host publication54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011
DOIs
StatePublished - 2011
Event54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011 - Seoul, Korea, Republic of
Duration: 07 08 201110 08 2011

Publication series

NameMidwest Symposium on Circuits and Systems
ISSN (Print)1548-3746

Conference

Conference54th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2011
Country/TerritoryKorea, Republic of
CitySeoul
Period07/08/1110/08/11

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