Analysis of Human Head Interaction in Handset Antennas Using Ground Plane Corrugation

被引:2
作者
Moghnieh, Hawraa [1 ,2 ]
Rammal, Mohammad [1 ]
Barakeh, Rabih [1 ]
Rachid, Elias [2 ]
机构
[1] Lebanese Univ, Ecole Doctoral Sci & Technol EDST, Beirut 1533, Lebanon
[2] St Joseph Univ, CST Elect Dept, ESIB, Beirut 1104, Lebanon
来源
IEEE ACCESS | 2024年 / 12卷
关键词
Antennas; Specific absorption rate; Magnetic heads; Mobile handsets; Magnetic fields; Mobile antennas; Electric fields; Electromagnetics; Antenna measurements; Mathematical models; Antenna radiation patterns; PIFA; M-PIFA; SAR; mobile phone antenna; antenna radiation efficiency; corrugation; SAR REDUCTION; DESIGN;
D O I
10.1109/ACCESS.2024.3476368
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper presents a novel approach for designing a mobile antenna with a Low Specific Absorption Rate (SAR). First, the relationship between the electric field and the SAR value is constructed based on the Poynting Theorem studied in the near-field interaction area. Then, the relationship between the surface current and the magnetic field was examined, establishing a connection between the SAR and the surface current on the ground of the antenna. Next, the interaction mechanism of the radiation fields of the antennas with nearby human tissues was studied using electromagnetic boundary conditions derived from Maxwell's equations. The approach of reducing the antenna radiated electric field was proposed by directly amending the antenna surface current, thereby reducing the SAR levels in human tissues. Finally, three low-SAR antennas are designed according to the proposed approach. This approach was tested using three different antennas. A 3.6 GHz Planar Inverted-F Antenna (PIFA), 1.8 GHz Meandered Planar Inverted-F Antenna (M-PIFA) and 2.4 GHz M-PIFA. The simulation and measurement results of these low-SAR antennas show good impedance matching in the operating frequency range. The peak values of the 10 g average SAR of these three antennas are reduced by more than 30% without compromising the efficiency, maintaining convenient impedance matching at the operating frequency, and without enlarging the antenna dimensions. The measurement was accomplished using thermal analysis and compared with simulation analysis, which proved the validity of this approach as a guide for low-SAR mobile phone antenna design.
引用
收藏
页码:151834 / 151845
页数:12
相关论文
共 38 条
[1]  
[Anonymous], 2010, IEC Standard 62209-2:2010
[2]  
Arkko A. T., 2003, Twelfth International Conference on Antennas and Propagation. ICAP 2003 (IEE Conf.Publ. No.491), P316, DOI 10.1049/cp:20030077
[3]   Fully Fabric High Impedance Surface-Enabled Antenna for Wearable Medical Applications [J].
Ashyap, Adel Y. I. ;
Dahlan, Samsul Haimi Bin ;
Abidin, Zuhairiah Zainal ;
Rahim, Sharul Kamal Abdul ;
Majid, Huda A. ;
Alqadami, Abdulrahman S. M. ;
Atrash, Mohamed El .
IEEE ACCESS, 2021, 9 :6948-6960
[4]   Highly Efficient Wearable CPW Antenna Enabled by EBG-FSS Structure for Medical Body Area Network Applications [J].
Ashyap, Adel Y. I. ;
Abidin, Zuhairiah Zainal ;
Dahlan, Samsul Haimi ;
Majid, Huda A. ;
Kamarudin, Muhammad Ramlee ;
Alomainy, Akram ;
Abd-Alhameed, Raed A. ;
Kosha, Jamal Sulieman ;
Noras, James M. .
IEEE ACCESS, 2018, 6 :77529-77541
[5]  
Atanasov NT, 2019, 2019 IEEE MTT-S INTERNATIONAL MICROWAVE WORKSHOP SERIES ON ADVANCED MATERIALS AND PROCESSES FOR RF AND THZ APPLICATIONS (IMWS-AMP 2019), P67, DOI [10.1109/IMWS-AMP.2019.8880142, 10.1109/imws-amp.2019.8880142]
[6]   Polymeric ferrite sheets for SAR reduction of wearable antennas [J].
Augustine, R. ;
Alves, T. ;
Sarrebourse, T. ;
Poussot, B. ;
Mathew, K. T. ;
Laheurte, J. -M. .
ELECTRONICS LETTERS, 2010, 46 (03) :197-198
[7]  
Balanis C. A., 2016, Antenna Design for Mobile Devices, V4th, P762
[8]  
Elliott R.S., 1954, IRE Trans. Antennas Propag., V2, P71, DOI DOI 10.1109/T-AP.1954.27975
[9]   A New Design of Metamaterials for SAR Reduction [J].
Faruque, M. R. I. ;
Islam, M. T. ;
Ali, M. A. M. .
MEASUREMENT SCIENCE REVIEW, 2013, 13 (02) :70-74
[10]  
Fujio S, 2006, 2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT), P269