An Energy-Efficient Antenna Impedance Detection Using Electrical Balance for Single-Step On-Chip Tunable Matching in Wearable/Implantable Applications

Minyoung Song; Chuang Lu; Ao Ba; Xiaoyan Wang; Yao Hong Liu; Kenichi Shibata; Christian Bachmann; Kathleen Philips

doi:10.1109/TBCAS.2017.2771500

An Energy-Efficient Antenna Impedance Detection Using Electrical Balance for Single-Step On-Chip Tunable Matching in Wearable/Implantable Applications

Minyoung Song, Chuang Lu, Ao Ba, Xiaoyan Wang, Yao Hong Liu, Kenichi Shibata, Christian Bachmann, Kathleen Philips

Department of Electrical Engineering and Computer Science

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A low-power impedance detection method using a hybrid transformer and its analysis are presented. A balun is reused for the hybrid transformer to achieve area-efficiency. The complex impedance detection enables faster optimization on a tunable matching network and its calibration technique increases the detection accuracy. The proposed impedance detection method fabricated in a 40-nm CMOS process consumes only 0.83 mW and demonstrates the accuracy of less than 18° and 0.1 on the Γ detection up to Ant of 0.5 in ISM2.4 GHz band. After single-step matching network tuning, PA power and RX noise figure are improved by up to 1.2 dB and 1.3 dB, respectively.

Original language	English
Article number	8125188
Pages (from-to)	1236-1244
Number of pages	9
Journal	IEEE Transactions on Biomedical Circuits and Systems
Volume	11
Issue number	6
DOIs	https://doi.org/10.1109/TBCAS.2017.2771500
State	Published - Dec 2017

Bibliographical note

Publisher Copyright:
© 2007-2012 IEEE.

Keywords

Antenna impedance detection
CMOS process
electrical balancing
hybrid transformer
impedance matching
tunable circuits and devices

Access to Document

10.1109/TBCAS.2017.2771500

Cite this

Song, M., Lu, C., Ba, A., Wang, X., Liu, Y. H., Shibata, K., Bachmann, C., & Philips, K. (2017). An Energy-Efficient Antenna Impedance Detection Using Electrical Balance for Single-Step On-Chip Tunable Matching in Wearable/Implantable Applications. IEEE Transactions on Biomedical Circuits and Systems, 11(6), 1236-1244. Article 8125188. https://doi.org/10.1109/TBCAS.2017.2771500

@article{7170b220a2e446dd9b560db199fdc6c1,

title = "An Energy-Efficient Antenna Impedance Detection Using Electrical Balance for Single-Step On-Chip Tunable Matching in Wearable/Implantable Applications",

abstract = "A low-power impedance detection method using a hybrid transformer and its analysis are presented. A balun is reused for the hybrid transformer to achieve area-efficiency. The complex impedance detection enables faster optimization on a tunable matching network and its calibration technique increases the detection accuracy. The proposed impedance detection method fabricated in a 40-nm CMOS process consumes only 0.83 mW and demonstrates the accuracy of less than 18° and 0.1 on the Γ detection up to Ant of 0.5 in ISM2.4 GHz band. After single-step matching network tuning, PA power and RX noise figure are improved by up to 1.2 dB and 1.3 dB, respectively.",

keywords = "Antenna impedance detection, CMOS process, electrical balancing, hybrid transformer, impedance matching, tunable circuits and devices",

author = "Minyoung Song and Chuang Lu and Ao Ba and Xiaoyan Wang and Liu, {Yao Hong} and Kenichi Shibata and Christian Bachmann and Kathleen Philips",

note = "Publisher Copyright: {\textcopyright} 2007-2012 IEEE.",

year = "2017",

month = dec,

doi = "10.1109/TBCAS.2017.2771500",

language = "English",

volume = "11",

pages = "1236--1244",

journal = "IEEE Transactions on Biomedical Circuits and Systems",

issn = "1932-4545",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6",

}

Song, M, Lu, C, Ba, A, Wang, X, Liu, YH, Shibata, K, Bachmann, C & Philips, K 2017, 'An Energy-Efficient Antenna Impedance Detection Using Electrical Balance for Single-Step On-Chip Tunable Matching in Wearable/Implantable Applications', IEEE Transactions on Biomedical Circuits and Systems, vol. 11, no. 6, 8125188, pp. 1236-1244. https://doi.org/10.1109/TBCAS.2017.2771500

TY - JOUR

T1 - An Energy-Efficient Antenna Impedance Detection Using Electrical Balance for Single-Step On-Chip Tunable Matching in Wearable/Implantable Applications

AU - Song, Minyoung

AU - Lu, Chuang

AU - Ba, Ao

AU - Wang, Xiaoyan

AU - Liu, Yao Hong

AU - Shibata, Kenichi

AU - Bachmann, Christian

AU - Philips, Kathleen

PY - 2017/12

Y1 - 2017/12

N2 - A low-power impedance detection method using a hybrid transformer and its analysis are presented. A balun is reused for the hybrid transformer to achieve area-efficiency. The complex impedance detection enables faster optimization on a tunable matching network and its calibration technique increases the detection accuracy. The proposed impedance detection method fabricated in a 40-nm CMOS process consumes only 0.83 mW and demonstrates the accuracy of less than 18° and 0.1 on the Γ detection up to Ant of 0.5 in ISM2.4 GHz band. After single-step matching network tuning, PA power and RX noise figure are improved by up to 1.2 dB and 1.3 dB, respectively.

AB - A low-power impedance detection method using a hybrid transformer and its analysis are presented. A balun is reused for the hybrid transformer to achieve area-efficiency. The complex impedance detection enables faster optimization on a tunable matching network and its calibration technique increases the detection accuracy. The proposed impedance detection method fabricated in a 40-nm CMOS process consumes only 0.83 mW and demonstrates the accuracy of less than 18° and 0.1 on the Γ detection up to Ant of 0.5 in ISM2.4 GHz band. After single-step matching network tuning, PA power and RX noise figure are improved by up to 1.2 dB and 1.3 dB, respectively.

KW - Antenna impedance detection

KW - CMOS process

KW - electrical balancing

KW - hybrid transformer

KW - impedance matching

KW - tunable circuits and devices

UR - http://www.scopus.com/inward/record.url?scp=85036524645&partnerID=8YFLogxK

U2 - 10.1109/TBCAS.2017.2771500

DO - 10.1109/TBCAS.2017.2771500

M3 - Article

C2 - 29293421

AN - SCOPUS:85036524645

SN - 1932-4545

VL - 11

SP - 1236

EP - 1244

JO - IEEE Transactions on Biomedical Circuits and Systems

JF - IEEE Transactions on Biomedical Circuits and Systems

IS - 6

M1 - 8125188

ER -

An Energy-Efficient Antenna Impedance Detection Using Electrical Balance for Single-Step On-Chip Tunable Matching in Wearable/Implantable Applications

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this