A novel planar type broadband CMOS on-chip balun with relative bandwidth of 158%

Tadashi Takagi; Eita Nakayama; Tuan Thanh Ta; Suguru Kameda; Noriharu Suematsu; Kazuo Tsubouchi

doi:10.1109/APMC.2012.6421538

A novel planar type broadband CMOS on-chip balun with relative bandwidth of 158%

Tadashi Takagi, Eita Nakayama, Tuan Thanh Ta, Suguru Kameda, Noriharu Suematsu, Kazuo Tsubouchi

RIEC - Information Communication Platforms Division

Tohoku University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

A novel planar type broadband balun having a symmetrical structure has been proposed. Considering a lossless and uniform material, balun operation is analyzed and impedance matching condition is formulated. Applying the proposed balun configuration, and using CMOS multi-layer structure, a CMOS on-chip balun has been fabricated. The fabricated balun has achieved ultra-broadband performance. Measured characteristics of the balun are return loss of more than 8dB, insertion loss of 1.5 ∼ 6.3dB from the unbalanced to the balanced ports, and the amplitude difference and phase difference between the balanced ports of -0.2 ∼ +1.5dB and 173.5 ∼ 179deg, respectively, over the frequency range of 13 ∼ 110GHz.

Original language	English
Title of host publication	2012 Asia-Pacific Microwave Conference, APMC 2012 - Proceedings
Pages	178-180
Number of pages	3
DOIs	https://doi.org/10.1109/APMC.2012.6421538
Publication status	Published - 2012
Event	2012 Asia-Pacific Microwave Conference, APMC 2012 - Kaohsiung, Taiwan, Province of China Duration: 2012 Dec 4 → 2012 Dec 7

Publication series

Name	Asia-Pacific Microwave Conference Proceedings, APMC

Conference

Conference	2012 Asia-Pacific Microwave Conference, APMC 2012
Country/Territory	Taiwan, Province of China
City	Kaohsiung
Period	12/12/4 → 12/12/7

Keywords

Balun
CMOS
microwave
millimeter-wave
multi-layer structure
planar type
ultra-broadband

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10.1109/APMC.2012.6421538

Cite this

@inproceedings{87c4dd6ce1324a5fa4928e7dbfc621c7,

title = "A novel planar type broadband CMOS on-chip balun with relative bandwidth of 158%",

abstract = "A novel planar type broadband balun having a symmetrical structure has been proposed. Considering a lossless and uniform material, balun operation is analyzed and impedance matching condition is formulated. Applying the proposed balun configuration, and using CMOS multi-layer structure, a CMOS on-chip balun has been fabricated. The fabricated balun has achieved ultra-broadband performance. Measured characteristics of the balun are return loss of more than 8dB, insertion loss of 1.5 ∼ 6.3dB from the unbalanced to the balanced ports, and the amplitude difference and phase difference between the balanced ports of -0.2 ∼ +1.5dB and 173.5 ∼ 179deg, respectively, over the frequency range of 13 ∼ 110GHz.",

keywords = "Balun, CMOS, microwave, millimeter-wave, multi-layer structure, planar type, ultra-broadband",

author = "Tadashi Takagi and Eita Nakayama and Ta, {Tuan Thanh} and Suguru Kameda and Noriharu Suematsu and Kazuo Tsubouchi",

year = "2012",

doi = "10.1109/APMC.2012.6421538",

language = "English",

isbn = "9781457713309",

series = "Asia-Pacific Microwave Conference Proceedings, APMC",

pages = "178--180",

booktitle = "2012 Asia-Pacific Microwave Conference, APMC 2012 - Proceedings",

note = "2012 Asia-Pacific Microwave Conference, APMC 2012 ; Conference date: 04-12-2012 Through 07-12-2012",

}

Takagi, T, Nakayama, E, Ta, TT, Kameda, S, Suematsu, N & Tsubouchi, K 2012, A novel planar type broadband CMOS on-chip balun with relative bandwidth of 158%. in 2012 Asia-Pacific Microwave Conference, APMC 2012 - Proceedings., 6421538, Asia-Pacific Microwave Conference Proceedings, APMC, pp. 178-180, 2012 Asia-Pacific Microwave Conference, APMC 2012, Kaohsiung, Taiwan, Province of China, 12/12/4. https://doi.org/10.1109/APMC.2012.6421538

A novel planar type broadband CMOS on-chip balun with relative bandwidth of 158%. / Takagi, Tadashi; Nakayama, Eita; Ta, Tuan Thanh et al.
2012 Asia-Pacific Microwave Conference, APMC 2012 - Proceedings. 2012. p. 178-180 6421538 (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A novel planar type broadband CMOS on-chip balun with relative bandwidth of 158%

AU - Takagi, Tadashi

AU - Nakayama, Eita

AU - Ta, Tuan Thanh

AU - Kameda, Suguru

AU - Suematsu, Noriharu

AU - Tsubouchi, Kazuo

PY - 2012

Y1 - 2012

N2 - A novel planar type broadband balun having a symmetrical structure has been proposed. Considering a lossless and uniform material, balun operation is analyzed and impedance matching condition is formulated. Applying the proposed balun configuration, and using CMOS multi-layer structure, a CMOS on-chip balun has been fabricated. The fabricated balun has achieved ultra-broadband performance. Measured characteristics of the balun are return loss of more than 8dB, insertion loss of 1.5 ∼ 6.3dB from the unbalanced to the balanced ports, and the amplitude difference and phase difference between the balanced ports of -0.2 ∼ +1.5dB and 173.5 ∼ 179deg, respectively, over the frequency range of 13 ∼ 110GHz.

AB - A novel planar type broadband balun having a symmetrical structure has been proposed. Considering a lossless and uniform material, balun operation is analyzed and impedance matching condition is formulated. Applying the proposed balun configuration, and using CMOS multi-layer structure, a CMOS on-chip balun has been fabricated. The fabricated balun has achieved ultra-broadband performance. Measured characteristics of the balun are return loss of more than 8dB, insertion loss of 1.5 ∼ 6.3dB from the unbalanced to the balanced ports, and the amplitude difference and phase difference between the balanced ports of -0.2 ∼ +1.5dB and 173.5 ∼ 179deg, respectively, over the frequency range of 13 ∼ 110GHz.

KW - Balun

KW - CMOS

KW - microwave

KW - millimeter-wave

KW - multi-layer structure

KW - planar type

KW - ultra-broadband

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T3 - Asia-Pacific Microwave Conference Proceedings, APMC

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BT - 2012 Asia-Pacific Microwave Conference, APMC 2012 - Proceedings

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ER -

A novel planar type broadband CMOS on-chip balun with relative bandwidth of 158%

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Keywords

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