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2019-01-24
Investigations of Specific Absorption Rate and Temperature Variations for an UWB Antenna for Wireless Applications
By
Progress In Electromagnetics Research M, Vol. 78, 83-92, 2019
Abstract
This paper portrays a compact planar ultra-wideband (UWB) antenna design and development for wireless applications. The proposed antenna is influenced by fractal geometry design, where a pentagon slot is introduced inside a circular metallic patch, and iterations were carried out to achieve needed wide bandwidth. The antenna is deployed over an FR4 substrate with relative permittivity of 4.4 and thickness of 0.16 cm, to achieve wider impedance bandwidth. The proposed antenna is of low profile with dimensions of 32 mm x 32 mm, and it operates over bandwidth of 12.1 GHz (2.9-15 GHz). Specific Absorption Rate (SAR), the measure of exposure of electromagnetic (EM) energy on human tissues, is observed when proposed antenna is placed in close proximity to the dispersive phantom model. Also, the time domain analysis is done on human tissue model to observe the performance of the antenna and to validate its capability with wireless devices which are in near vicinity to the human all the time. Further, in this research, the temperature variation on human tissue is examined using Infrared (IR) thermal camera. Investigation on these parameters and validation with Radio Frequency (RF) equipment helps to prove that the proposed antenna is a suitable candidate for UWB wireless communication applications.
Citation
Mohandoss Susila, Thipparaju Rama Rao, Karthik Varshini, Palaniswamy Sandeep Kumar, and Marudappa Pushpalatha, "Investigations of Specific Absorption Rate and Temperature Variations for an UWB Antenna for Wireless Applications," Progress In Electromagnetics Research M, Vol. 78, 83-92, 2019.
doi:10.2528/PIERM18111603
References

1. Tuovinen, T., M. Berg, K. Y. Yazdandoost, and J. Iinatti, "Ultra wideband loop antenna on contact with human body tissues," IET Microwaves, Antennas & Propagation, Vol. 7, No. 7, 588-596, 2013.
doi:10.1049/iet-map.2012.0082

2. Doddipalli, S., A. Kothari, and P. Peshwe, "A low profile ultrawide band monopole antenna for wearable applications," International Journal of Antennas and Propagation, Vol. Article ID 7362431, 9 pages, 2017, 2017.

3. Sali, M. and A. Pourziad, "A novel reconfigurable spiral-shaped monopole antenna for biomedical applications," Progress In Electromagnetics Research Letters, Vol. 57, 79-84, 2015.
doi:10.2528/PIERL15083103

4. Yeboah-Akowuah, B., P. Kosmas, and Y. Chen, "A Q-slot monopole for UWB body centric wireless communications," IEEE Transactions on Antennas and Propagation, Vol. 65, No. 10, October 2017.

5. Bhattacharjee, S., M. Mitra, and S. R. Bhadra Chaudhuri, "An effective SAR reduction technique of a compact meander line antenna for wearable applications," Progress In Electromagnetics Research M, Vol. 55, 143-152, 2017.
doi:10.2528/PIERM16121501

6. Klemm, M. and G. Troester, "EM energy absorption in the human body Tissues due to UWB antennas," Progress In Electromagnetics Research, Vol. 62, 261-280, 2006.
doi:10.2528/PIER06040601

7. Ray, K. P., "Design aspects of printed monopole antennas for ultra-wide band applications," International Journal of Antennas and Propagation, Vol. 2008, Article ID 713858, 8 pages, 2008.

8. Karthik, V. and T. Rama Rao, "Estimation of specific absorption rate using infrared thermography for the biocompatibility of wearable wireless devices," Progress In Electromagnetics Research M, Vol. 56, 101-109, 2017.
doi:10.2528/PIERM17022603

9. Karthik, V. and T. Rama Rao, "Thermal distribution based investigations on electromagnetic interactions with the human body for wearable wireless devices," Progress In Electromagnetics Research M, Vol. 50, 141-150, 2016.
doi:10.2528/PIERM16071703

10. Karthik, V. and T. Rama Rao, "SAR investigations on the exposure compliance of wearable wireless devices using infrared thermography," Bioelectromagnetics, Vol. 39, No. 6, 451-459, 2018.
doi:10.1002/bem.22133

11. Mohandoss, S., T. Rama Rao, B. N. Balarami Reddy, P. Sandeep Kumar, and M. Pushpalatha, "Fractal based ultra-wideband antenna development for wireless personal area communication applications," International Journal of Electronics and Communications - (AEU), Vol. 93, 95-102, 2018.
doi:10.1016/j.aeue.2018.06.009

12. Sanyal, R., A. Patra, P. Sarkar, and S. Chowdhury, "Frequency and time domain analysis of a novel UWB antenna with dual band-notched characteristic," International Journal of Microwave and Wireless Technology, Vol. 9, No. 2, 427-436, 2017.
doi:10.1017/S1759078715001658

13. Zahrana, S. R., M. A. Abdallab, and A. Gaafar, "Time domain analysis for foldable thin UWB monopole antenna," AEU - International Journal of Electronics and Communications, 2018, https://doi.org/10.1016/j.aeue.2017.09.006.

14. "Revision of Part 15 of the commission’s rules regarding ultra-wideband transmission systems. First report and order," Technical Report ET Docket, 98-153, FCC 02-48, Federal Communications Commission, 2002.

15. "International Commission on Non-Ionizing Radiation Protection (ICNIRP). Guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields (up to 300 GHz)," Health Physics, Vol. 74, 494-522, 1998.

16. Gabriel, C., "Compilation of the dielectric properties of body tissues at RF and microwave frequencies,", Report N. AL/OE-TR-1996-0037, Occupational and environmental health directorate, Radiofrequency Radiation Division, Brooks Air Force Base, Texas, USA, June 1996.

17. Salim, M. and A. Pourziad, "A novel reconfigurable spiral-shaped monopole antenna for biomedical applications," Progress In Electromagnetics Research Letters, Vol. 57, 79-84, 2015.
doi:10.2528/PIERL15083103

18. Doddipalli, S., A. Kothari, and P. Peshwe, "A low profile ultrawide band monopole antenna for wearable applications," International Journal of Antennas and Propagation, Vol. 2017, Article ID 7362431, 9 pages, 2017.

19. Yeboah-Akowuah, B., P. Kosmas, and Y. Chen, "A Q-slot monopole for UWB body-centric wireless communication," IEEE Transactions on Antennas and Propagation, Vol. 65, No. 10, 5069-5075, 2017.
doi:10.1109/TAP.2017.2740977

20. Bhattacharjee, S., M. Mitra, and S. R. Bhadra Chaudhuri, "An effective SAR reduction technique of a compact meander line antenna for wearable applications," Progress In Electromagnetics Research M, Vol. 55, 143-152, 2017.
doi:10.2528/PIERM16121501