Title :
Investigation of crumpling effects on EM absorption and antenna performance at 2.4 GHz
Author :
Elias, N.A. ; Samsuri, N.A. ; Rahim, M.K.A. ; Othman, Norazila
Author_Institution :
Radio Commun. Eng. Dept. (RaCED), Univ. Teknol. Malaysia, Skudai, Malaysia
Abstract :
This paper discusses the performance and SAR of dipole textile antenna under different crumpling conditions in the presence of human body close to the radiation source. The numerical simulations of the realistic complex two dimensional crumpling is performed by using Finite Integration Technique (FIT) which is applied in Computer Simulation Technology (CST) Microwave Studio. A realistic heterogeneous Voxel body model is used in the simulation and has been exposed to a simple dipole textile antenna at 2.4 GHz. Results have been compared with equivalent homogeneous model to further validate the results. The results obtained show that the antenna crumpling has prominent effect on the antenna performance and could enhance the 10 g SAR up to 18.2 % from the reference SAR (flat condition). Hence, the antenna crumpling may contribute to higher penetration of the radiation through human body tissue.
Keywords :
UHF antennas; dipole antennas; electromagnetic wave absorption; numerical analysis; textiles; wearable antennas; CST Microwave Studio; Computer Simulation Technology Microwave Studio; EM absorption; FIT; SAR; antenna performance; complex two dimensional crumpling effect; dipole textile antenna; equivalent homogeneous model; finite integration technique; frequency 2.4 GHz; heterogeneous voxel body model; human body tissue; numerical simulation; radiation source; specific absorption rate; Antenna radiation patterns; Dipole antennas; Resonant frequency; Specific absorption rate; Textiles; Dipole antenna; SAR; electromagnetic radiation; electromagnetic wave absorption;
Conference_Titel :
RF and Microwave Conference (RFM), 2013 IEEE International
Conference_Location :
Penang
Print_ISBN :
978-1-4799-2213-0
DOI :
10.1109/RFM.2013.6757292