A Compact Dual-Mode Pattern-Reconfigurable Wearable Antenna for the 2.4-GHz WBAN Application

Guo Ping Gao; Ben Kai Zhang; Jing Hang Dong; Zhi Heng Dou; Zhuo Qi Yu; Bin Hu

doi:10.1109/TAP.2022.3225529

A Compact Dual-Mode Pattern-Reconfigurable Wearable Antenna for the 2.4-GHz WBAN Application

Guo Ping Gao, Ben Kai Zhang, Jing Hang Dong, Zhi Heng Dou, Zhuo Qi Yu, Bin Hu^*

^*Corresponding author for this work

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

40 Citations (Scopus)

Abstract

In this communication, a novel reconfigurable antenna operating at both ON- and OFF-body mode is proposed. Initially, the study is dedicated to the construction of omnidirectional and unidirectional radiation using the fundamental TM00 and TM10 mode of the rectangular patch. Then, a rectangular slot is cut out of the patch to shift the resonance of the unidirectional mode to a lower frequency, which not only minimizes the antenna's overall size but also enables the omnidirectional and unidirectional modes to have overlapping impedance bandwidths. In order to switch arbitrarily, four p-i-n diodes are mounted to control the operating mode. The measured results show that the overlapped bandwidth achieves 3.8% and could cover the 2.4-GHz ISM band. Besides, stable performance of the antenna is obtained when setting on different parts of the human body. The calculated specific absorption rate (SAR) values of both ON- and OFF-body mode meet the standards of the United States and Europe. These properties make the proposed antenna suitable for wearable systems.

Original language	English
Pages (from-to)	1901-1906
Number of pages	6
Journal	IEEE Transactions on Antennas and Propagation
Volume	71
Issue number	2
DOIs	https://doi.org/10.1109/TAP.2022.3225529
Publication status	Published - 1 Feb 2023
Externally published	Yes

Keywords

ON-/OFF-body communication
p-i-n diode
polydimethylsiloxane (PDMS)
reconfigurable antenna
wearable antenna
wireless body area network (WBAN)

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10.1109/TAP.2022.3225529

Cite this

Gao, G. P., Zhang, B. K., Dong, J. H., Dou, Z. H., Yu, Z. Q., & Hu, B. (2023). A Compact Dual-Mode Pattern-Reconfigurable Wearable Antenna for the 2.4-GHz WBAN Application. IEEE Transactions on Antennas and Propagation, 71(2), 1901-1906. https://doi.org/10.1109/TAP.2022.3225529

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title = "A Compact Dual-Mode Pattern-Reconfigurable Wearable Antenna for the 2.4-GHz WBAN Application",

abstract = "In this communication, a novel reconfigurable antenna operating at both ON- and OFF-body mode is proposed. Initially, the study is dedicated to the construction of omnidirectional and unidirectional radiation using the fundamental TM00 and TM10 mode of the rectangular patch. Then, a rectangular slot is cut out of the patch to shift the resonance of the unidirectional mode to a lower frequency, which not only minimizes the antenna's overall size but also enables the omnidirectional and unidirectional modes to have overlapping impedance bandwidths. In order to switch arbitrarily, four p-i-n diodes are mounted to control the operating mode. The measured results show that the overlapped bandwidth achieves 3.8% and could cover the 2.4-GHz ISM band. Besides, stable performance of the antenna is obtained when setting on different parts of the human body. The calculated specific absorption rate (SAR) values of both ON- and OFF-body mode meet the standards of the United States and Europe. These properties make the proposed antenna suitable for wearable systems.",

keywords = "ON-/OFF-body communication, p-i-n diode, polydimethylsiloxane (PDMS), reconfigurable antenna, wearable antenna, wireless body area network (WBAN)",

author = "Gao, {Guo Ping} and Zhang, {Ben Kai} and Dong, {Jing Hang} and Dou, {Zhi Heng} and Yu, {Zhuo Qi} and Bin Hu",

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AU - Dou, Zhi Heng

AU - Yu, Zhuo Qi

AU - Hu, Bin

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N2 - In this communication, a novel reconfigurable antenna operating at both ON- and OFF-body mode is proposed. Initially, the study is dedicated to the construction of omnidirectional and unidirectional radiation using the fundamental TM00 and TM10 mode of the rectangular patch. Then, a rectangular slot is cut out of the patch to shift the resonance of the unidirectional mode to a lower frequency, which not only minimizes the antenna's overall size but also enables the omnidirectional and unidirectional modes to have overlapping impedance bandwidths. In order to switch arbitrarily, four p-i-n diodes are mounted to control the operating mode. The measured results show that the overlapped bandwidth achieves 3.8% and could cover the 2.4-GHz ISM band. Besides, stable performance of the antenna is obtained when setting on different parts of the human body. The calculated specific absorption rate (SAR) values of both ON- and OFF-body mode meet the standards of the United States and Europe. These properties make the proposed antenna suitable for wearable systems.

AB - In this communication, a novel reconfigurable antenna operating at both ON- and OFF-body mode is proposed. Initially, the study is dedicated to the construction of omnidirectional and unidirectional radiation using the fundamental TM00 and TM10 mode of the rectangular patch. Then, a rectangular slot is cut out of the patch to shift the resonance of the unidirectional mode to a lower frequency, which not only minimizes the antenna's overall size but also enables the omnidirectional and unidirectional modes to have overlapping impedance bandwidths. In order to switch arbitrarily, four p-i-n diodes are mounted to control the operating mode. The measured results show that the overlapped bandwidth achieves 3.8% and could cover the 2.4-GHz ISM band. Besides, stable performance of the antenna is obtained when setting on different parts of the human body. The calculated specific absorption rate (SAR) values of both ON- and OFF-body mode meet the standards of the United States and Europe. These properties make the proposed antenna suitable for wearable systems.

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A Compact Dual-Mode Pattern-Reconfigurable Wearable Antenna for the 2.4-GHz WBAN Application

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