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High efficient dual band stacked antennas integrated into rescue helmets for indoor communication

Published online by Cambridge University Press:  15 February 2021

Hashinur Islam
Affiliation:
Department of Electronics and Communication Engineering, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Majitar, Rangpo, Sikkim737136, India
Saumya Das*
Affiliation:
Department of Information Technology, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Majitar, Rangpo, Sikkim737136, India
Tanushree Bose
Affiliation:
Department of Electronics and Communication Engineering, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Majitar, Rangpo, Sikkim737136, India
Sourav Dhar
Affiliation:
Department of Electronics and Communication Engineering, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Majitar, Rangpo, Sikkim737136, India
*
Author for correspondence: Saumya Das, E-mail: saumya.das.1976@gmail.com

Abstract

A dual-band stacked antenna integrated with a rescue helmet is proposed for WLAN applications. The cross slot aperture feeding technique enables the antenna to support dual-band operation at 2.4 and 5 GHz. On the ground plane, two slots are formed, perpendicular to each other and of different lengths. Four dielectric layers of different permittivity are stacked over this cross slot to attain the desired frequency bands. Under free space condition, the radiator yields 7% (2.31–2.48 GHz), 15.87% (5.12–6 GHz) 10 dB return loss bandwidth (BW). The use of low loss dielectric layers on the slots also provides a high antenna efficiency and moderate gain at both frequency bands. The small dimension of antenna encourages its use as a wearable helmet antenna. Antenna performances are observed under wearable condition. For assessing human exposure to RF electromagnetic fields, SAR evaluations are conducted at both 2.4 and 5 GHz WLAN bands.

Type
Antenna Design, Modelling and Measurements
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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References

Winterhalter, CA, Teverovsky, J, Wilson, P, Slade, J, Horowitz, W, Tierney, E and Sharma, V (2005) Development of electronic textiles to support networks, communications, and medical applications in future US Military protective clothing systems. IEEE Transactions on Information Technology in Biomedicine 9, 402406.CrossRefGoogle Scholar
Yan, S, Soh, PJ and Vandenbosch, GA (2014) Low-profile dualband textile antenna with artificial magnetic conductor plane. IEEE Transactions on Antennas and Propagation 62, 64876490.CrossRefGoogle Scholar
Nguyen-Trong, N, Piotrowski, A, Kaufmann, T and Fumeaux, C (2016) Low-profile wideband monopolar UHF antennas for integration onto vehicles and helmets. IEEE Transactions on Antennas and Propagation 64, 25622568.CrossRefGoogle Scholar
Lee, H, Tak, J and Choi, J (2017) Wearable antenna integrated into military berets for indoor/outdoor positioning system. IEEE Antennas and Wireless Propagation Letters 16, 19191922.CrossRefGoogle Scholar
Gao, GP, Hu, B, Wang, SF and Yang, C (2018) Wearable circular ring slot antenna with EBG structure for wireless body area network. IEEE Antennas and Wireless Propagation Letters 17, 434437.CrossRefGoogle Scholar
Abdu, A, Zheng, HX, Jabire, HA and Wang, M (2018) CPW-fed flexible monopole antenna with H and two concentric C slots on textile substrate, backed by EBG for WBAN. International Journal of RF and Microwave Computer-Aided Engineering 28, e21505.CrossRefGoogle Scholar
Biswas, AK and Chakraborty, U (2019) Investigation on decoupling of wide band wearable multiple-input multiple-output antenna elements using microstrip neutralization line. International Journal of RF and Microwave Computer-Aided Engineering 29, e21723.CrossRefGoogle Scholar
Bai, Q and Langley, R (2011) Crumpling of PIFA textile antenna. IEEE Transactions on Antennas and Propagation 60, 6370.CrossRefGoogle Scholar
Wen, D, Hao, Y, Munoz, MO, Wang, H and Zhou, H (2017) A compact and low-profile MIMO antenna using a miniature circular high impedance surface for wearable applications. IEEE Transactions on Antennas and Propagation 66, 96104.CrossRefGoogle Scholar
Mujal-Rosas, R, Orrit-Prat, J, Ramis-Juan, X, Marin-Genesca, M and Rahhali, A (2013) Dielectric, thermal, and mechanical properties of acrylonitrile butadiene styrene reinforced with used tires. Advances in Polymer Technology 32, E399E415.CrossRefGoogle Scholar
Hsu, YL, Tai, CY and Chen, TC (2000) Improving thermal properties of industrial safety helmets. International Journal of Industrial Ergonomics 26, 109117.CrossRefGoogle Scholar
Simorangkir, RB, Kiourti, A and Esselle, KP (2018) UWB wearable antenna with a full ground plane based on PDMS-embedded conductive fabric. IEEE Antennas and Wireless Propagation Letters 17, 493496.CrossRefGoogle Scholar
Yan, S and Vandenbosch, GA (2016) Radiation pattern-reconfigurable wearable antenna based on metamaterial structure. IEEE Antennas and Wireless Propagation Letters 15, 17151718.CrossRefGoogle Scholar
Ahlbom, A, Bergqvist, U, Bernhardt, J, Cesarini, J, Grandolfo, M, Hietanen, M, Mckinlay, A, Repacholi, M, Sliney, DH and Stolwijk, JA (1998) Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz). Health Physics 74, 494521.Google Scholar
(2002) IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields with respect to Human Exposure to Such Fields, 100 kHz–300 GHz, IEEE Standard C95.3-2002 (Revision of IEEE Standard C95.3-1991). https://ieeexplore.ieee.org/document/1167131Google Scholar