Dual Band and Dual Mode Microstrip Antenna for Body Centric Wireless Communication
Keywords:
BCWC network, dual band, dual mode, microstrip patches antenna, miniaturization, on-body/offbody antennaAbstract
A compact dual band and dual mode microstrip patch antenna, suitable for body centric wireless communication (BCWC) network is presented. The BCWC network works in two on-body and off- body modes. The proposed antenna has an outward radiation pattern for the off-body mode, which is suitable to communicate from on-body devices to off- body unite. Moreover, the antenna has an end-fire radiation pattern for the on-body mode, to communicate with other co-located worn devices from which data can be easily gathered. The proposed antenna resonances at 2.44 GHz (IEEE 802.11b/g) with 7.1 dB gain and linear polarization for the off-body mode and also at 5.43 GHz (IEEE 802.11a) with 6.6 dB gain and circular polarization for the on-body mode. Free space and on-body simulated and measured performances of the proposed antenna are shown. Specific absorption rate (SAR) value is also studied. The results show that the maximum averaged 10gr SAR is 0.26W/Kg for on-body mode when the antenna is placed on the chest of the human body model.
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References
G. A. Conway and W. G. Scanlon, “Antennas for over-body-surface communication at 2.45 GHz,” in Antennas and Propagation, IEEE Transactions on, vol. 57, no. 4, pp. 844-855, Apr. 2009.
A. R. Chandran, G. A. Conway, and W. G. Scanlon, “Compact low-profile patch antenna for medical body area networks at 868 MHz,” in Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE, pp. 1-4, 5-11 July 2008.
G. A. Conway, W. G. Scanlon, and D. Linton, “Low-profile microstrip patch antenna for overbody surface communication at 2.45 GHz,” in Vehicular Technology Conference, 2007. VTC2007- Spring. IEEE 65th , pp. 392-396, 22-25 Apr. 2007.
C. Hertleer, H. Rogier, L. Vallozzi, and L. Van Langenhove, “A textile antenna for off-body communication integrated into protective clothing for firefighters,” in Antennas and Propagation, IEEE Transactions on, vol. 57, no. 4, pp. 919-925, Apr. 2009.
D. Ma and W. X. Zhang, “A dual-band dualpolarized antenna for body area network,” in Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on, pp. 1-5, 12-16 Apr. 2010.
M. M. Khan, Q. H. Abbasi, A. Alomainy, C. Parini, Y. Hao, “Dual band and dual mode antenna for power efficient body-centric wireless communications,” in Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on, pp. 396-399, 3-8 July 2011.
S. Rezvani, Z. Atlasbaf, and K. Forooraghi, “A new compact reconfigurable patch antenna for polarization and frequency diversity,” Electromagnetics, vol. 32, pp. 287-293, 2012.
S. Rezvani, Z. Atlasbaf, and K. Forooraghi, “A movel miniaturized reconfigurable slotted microstrip patch antenna with DGS,” Journal of Electromagnetics, vol. 31, pp. 349-354, 2011.
C. Delaveaud, P. Leveque, and B. Jecko, “New kind of microstrip antenna: the monopolar wirepatch antenna,” in Electronics Letters, vol. 30, no. 1, pp. 1-2, 6 Jan. 1994.
L. Chia-Hsien, K. Saito, M. Takahashi, and K. Ito, “A compact planar inverted-F antenna for 2.45 GHz on-body communications,” in Antennas and Propagation, IEEE Transactions on, vol. 60, no. 9, pp. 4422-4426, Sept. 2012.
J. Choi, D.-G. Kang, J. Tak, and K. Kwon, “Dualmode antennas for WBAN applications,” in Electromagnetics (iWEM), 2014 IEEE International Workshop on, pp. 264-264, 4-6 Aug. 2014.
C. A. Balanis, Advanced Engineering Electromagnetic, Canada: John Wiley & Sons, ch. 8, 1989.
“Specific Absorption Rate (SAR),” Internet: www.fcc.gov/encyclopedia/specific-absorptionrate-sar-cellular-telephones, Oct. 2013.
