The research on body-centric wireless communications (BCWCs) is becoming very hot because of numerous applications, especially the application of E-health systems. Therefore, a small multi-band and low-profile planar inverted-F antenna (PIFA) with tuning function is presented for BCWCs in this paper. In order to achieve multi-band operation, there are two branches in the antenna: the longer branch low frequency band (950–956 MHz), and the shorter branch with a varactor diode embedded for high frequency bands. By supplying different DC voltages, the capacitance of the varactor diode varies, so the resonant frequency can be tuned without changing the dimension of the antenna. While the bias is set at 6 V and 14 V, WiMAX and ISM bands can be covered, respectively. From the radiation patterns, at 950 MHz, the proposed antenna is suitable for on-body communications, and in WiMAX and ISM bands, they are suitable for both on-body and off-body communications.
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Chia-Hsien LIN, Zhengyi LI, Kazuyuki SAITO, Masaharu TAKAHASHI, Koichi ITO, "Small Multi-Band Antenna with Tuning Function for Body-Centric Wireless Communications" in IEICE TRANSACTIONS on Communications,
vol. E95-B, no. 10, pp. 3074-3080, October 2012, doi: 10.1587/transcom.E95.B.3074.
Abstract: The research on body-centric wireless communications (BCWCs) is becoming very hot because of numerous applications, especially the application of E-health systems. Therefore, a small multi-band and low-profile planar inverted-F antenna (PIFA) with tuning function is presented for BCWCs in this paper. In order to achieve multi-band operation, there are two branches in the antenna: the longer branch low frequency band (950–956 MHz), and the shorter branch with a varactor diode embedded for high frequency bands. By supplying different DC voltages, the capacitance of the varactor diode varies, so the resonant frequency can be tuned without changing the dimension of the antenna. While the bias is set at 6 V and 14 V, WiMAX and ISM bands can be covered, respectively. From the radiation patterns, at 950 MHz, the proposed antenna is suitable for on-body communications, and in WiMAX and ISM bands, they are suitable for both on-body and off-body communications.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.3074/_p
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@ARTICLE{e95-b_10_3074,
author={Chia-Hsien LIN, Zhengyi LI, Kazuyuki SAITO, Masaharu TAKAHASHI, Koichi ITO, },
journal={IEICE TRANSACTIONS on Communications},
title={Small Multi-Band Antenna with Tuning Function for Body-Centric Wireless Communications},
year={2012},
volume={E95-B},
number={10},
pages={3074-3080},
abstract={The research on body-centric wireless communications (BCWCs) is becoming very hot because of numerous applications, especially the application of E-health systems. Therefore, a small multi-band and low-profile planar inverted-F antenna (PIFA) with tuning function is presented for BCWCs in this paper. In order to achieve multi-band operation, there are two branches in the antenna: the longer branch low frequency band (950–956 MHz), and the shorter branch with a varactor diode embedded for high frequency bands. By supplying different DC voltages, the capacitance of the varactor diode varies, so the resonant frequency can be tuned without changing the dimension of the antenna. While the bias is set at 6 V and 14 V, WiMAX and ISM bands can be covered, respectively. From the radiation patterns, at 950 MHz, the proposed antenna is suitable for on-body communications, and in WiMAX and ISM bands, they are suitable for both on-body and off-body communications.},
keywords={},
doi={10.1587/transcom.E95.B.3074},
ISSN={1745-1345},
month={October},}
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TY - JOUR
TI - Small Multi-Band Antenna with Tuning Function for Body-Centric Wireless Communications
T2 - IEICE TRANSACTIONS on Communications
SP - 3074
EP - 3080
AU - Chia-Hsien LIN
AU - Zhengyi LI
AU - Kazuyuki SAITO
AU - Masaharu TAKAHASHI
AU - Koichi ITO
PY - 2012
DO - 10.1587/transcom.E95.B.3074
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2012
AB - The research on body-centric wireless communications (BCWCs) is becoming very hot because of numerous applications, especially the application of E-health systems. Therefore, a small multi-band and low-profile planar inverted-F antenna (PIFA) with tuning function is presented for BCWCs in this paper. In order to achieve multi-band operation, there are two branches in the antenna: the longer branch low frequency band (950–956 MHz), and the shorter branch with a varactor diode embedded for high frequency bands. By supplying different DC voltages, the capacitance of the varactor diode varies, so the resonant frequency can be tuned without changing the dimension of the antenna. While the bias is set at 6 V and 14 V, WiMAX and ISM bands can be covered, respectively. From the radiation patterns, at 950 MHz, the proposed antenna is suitable for on-body communications, and in WiMAX and ISM bands, they are suitable for both on-body and off-body communications.
ER -