Mobile phone model with metamaterials to reduce the exposure
Source abstract
Abstract
This work presents a terminal mobile model where an Inverted-F Antenna (IFA) is associated with three different kinds of metamaterials: artificial magnetic conductor (AMC), electromagnetic band gap (EBG) and resistive high-impedance surface (RHIS). The objective was to evaluate whether some metamaterials may be used to reduce exposure while preserving the antenna performances. The exposure has been evaluated using a simplified phantom model. Two configurations, antenna in front of the phantom and antenna hidden by the ground plane, have been evaluated. Results show that using an optimized RHIS, the SAR 10 g is reduced and the antenna performances are preserved. With RHIS solution, the SAR 10 g peak is reduced by 8 % when the antenna is located in front of the phantom and by 6 % when the antenna is hidden by ground plane.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Antenna Design and Analysis · Energy Harvesting in Wireless Networks · Advanced Antenna and Metasurface Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
Show source-provided references
1. O. Kivekas, J. Ollikainen, T. Lehtiniemi, P. Vainikainen, Bandwidth, SAR, and efficiency of internal mobile phone antennas. Electromagn. Compat. IEEE Trans 46(1), 71–86 (2004)10.1109/TEMC.2004.823613 ↗
2. A.H. Kusuma, A.-F. Sheta, I.M. Elshafiey, Z. Siddiqui, M.A.S. Alkanhal, S. Aldosari, S.A. Alshebeili, S.F. Mahmoud, A new low SAR antenna structure for wireless handset applications. Prog. Electromagn. Res. 112, 23–40 (2011)10.2528/PIER10101802 ↗
3. M.I. Kitra, C.J. Panagamuwa, P. McEvoy, J.C. Vardaxoglou, J.R. James, Low SAR ferrite handset antenna design. IEEE Trans. Antennas Propag. 55(4), 1155–1164 (2007)10.1109/TAP.2007.893370 ↗
4. J.N. Hwang, F.C. Chen, Reduction of the peak SAR in the human head with metamaterials. Antennas Propag. IEEE Trans. 54(12), 3763–3770 (2006)10.1109/TAP.2006.886501 ↗
5. R. Ikeuchi, A. Hirata, Dipole antenna above EBG substrate for local SAR reduction. IEEE Antennas Wirel. Propag. Lett. 10, 904–906 (2011)10.1109/LAWP.2011.2167119 ↗
6. R. Ikeuchi, K.H. Chan, A. Hirata, SAR and radiation characteristics of a dipole antenna above different finite EBG substrates in the presence of a realistic head model in the 3.5 GHz band. Prog. Electromagn. Res. B 44, 53–70 (2012)10.2528/PIERB12072005 ↗
7. S. Lee, N. Kim, S.Y. Rhee, Design of novel artificial magnetic conductor reflector and its SAR analysis. in Progress in Electromagnetics Research Symposium Proceedings, Moscow, Russia, pp. 325–328, August 2012
8. S.I. Kwak, D.U. Sim, J.H. Kwon, Design of optimized multilayer PIFA with the EBG structure for SAR reduction in mobile applications. Electromagn. Compat. IEEE Trans. 53(2), 325–331 (2011)10.1109/TEMC.2011.2134101 ↗
9. H.-N. Lin, K.-W. Lin, S.-C. Chen, Use of frequency selective surface to prevent SAR and improve antenna performance of cellular phones. in Progress in Electromagnetics Research Symposium Proceedings, Suzhou, China, pp. 214–218, September 2011
10. Y. Pinto, X. Begaud, Monopole antenna with metamaterials to reduce the exposure. Appl. Phys. A 120(3), 917–925 (2015)10.1007/s00339-015-9230-0 ↗
11. W. Lee, M. Ko, J. Kim, Y.J. Yoon, Analysis of the shorting pin effects on an inverted-F antenna using a equivalent model for impedance matching, in Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on, pp. 1–5, April 2010
12. F. Linot, X. Begaud, M. Soiron, C. Renard, M. Labeyrie, Characterisation of a loaded high impedance surface. Int. J. Microw. Wirel. Technol. 1(9), 483–487 (2009)10.1017/S1759078709990596 ↗
13. A.C. Lepage, X. Begaud, J. Sarrazin, Wideband directive antennas with high impedance surfaces, in Microwave and Millimeter Wave Circuits and Systems: Emerging Design, Technologies and Applications, ed. by A. Georgiadis, H. Rogier, L. Roselli, P. Arcioni (Wiley, 2012)10.1002/9781118405864.ch3 ↗
14. M. Grelier, F. Linot, A.C. Lepage, X. Begaud, J.M. Le Mener, M. Soiron, Analytical methods for AMC and EBG characterisations. Appl. Phys. A 103(3), 805–808 (2011)10.1007/s00339-011-6255-x ↗
15. Y. Pinto, J. Sarrazin, A.-C. Lepage, X. Begaud, N. Capet, Resistive high-impedance surfaces (RHIS) as absorbers for oblique incidence electromagnetic waves. Appl. Phys. A 117(2), 693–697 (2014)10.1007/s00339-014-8724-5 ↗