scholarly journals Design and Analysis of Textile Antenna using EBG Structure

2019 ◽  
Vol 8 (9) ◽  
pp. 2137-2142
Keyword(s):  
Reflection Coefficient ◽  
Band Gap ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Substrate Material ◽  
Impedance Bandwidth ◽  
Electromagnetic Band Gap ◽  
Specific Absorption ◽  
Phantom Model ◽  
Textile Antenna

In this article, the rectangular textile antenna is embedded with E-shape Electromagnetic Band Gap (EBG) Structure for reduction of SAR. It is positioned on human phantom model. The E-shape EBG array is positioned between ground and patch of rectangular textile antenna. It is resonant at 2. 4GHz.The substrate material for the rectangular Textile antenna is jeans cloth. The Specific Absorption Rate (SAR), Reflection coefficient and Impedance Bandwidth are obtained with and without EBG structure using HFSS software and also measured.

scholarly journals SAR Evaluation of Metallic Loop-like Accessory Effect of Broadband Wearable Planar Monopole Textile Antenna

2018 ◽  
Vol 7 (3) ◽  
pp. 17-22
Author(s):  
H. H. Zainal ◽  
H. A. Rahim ◽  
P. J. Soh ◽  
H. Lago ◽  
K. N. A. Rani ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Monopole Antenna ◽  
Specific Absorption ◽  
Textile Antenna ◽  
The Common ◽  
Cst Microwave Studio

This paper presents the investigation influence of the common metallic loop like accessory on Specific Absorption Rate (SAR) averaged over 10g and 1 g tissue.The simulations were made by means CST Microwave Studio software at frequencies 2.45GHz and 2.6GHz. Numerical analysis conducted using broadband textile monopole antenna (TM) with variations of orientation and distance showed that the SAR value increased when the antenna horizontally polarized.This is up to 80% more than vertically polarized TM placed closest item to 2mm.

scholarly journals Design and Specific Absorption Rate of 2.6 GHz Rectangular-Shaped Planar Inverted-F Antenna

2018 ◽  
Vol 10 (2) ◽  
pp. 741
Author(s):  
Nurul Inshirah Mohd Razali ◽  
Norhudah Seman ◽  
Nur Ilham Aliyaa Ishak
Keyword(s):  
Reflection Coefficient ◽  
Parametric Study ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Ground Plane ◽  
Excitation Power ◽  
Antenna Gain ◽  
Specific Absorption ◽  
Patch Length ◽  
Cst Microwave Studio

<span lang="EN-US">This article presents the investigation of specific absorption rate (SAR) of a rectangular-shaped planar inverted-F antenna (PIFA) at frequency of 2.6 GHz. Initially, the design antenna is presented with parametric study concerning the dimensions of antenna patch length, shorting plate, ground plane and substrate. The proposed PIFA antenna has -20.46 dB reflection coefficient and 2.383 dB gain. The PIFA’s SAR is correlated with the antenna gain and excitation power. The analysis shows that higher gain contributes to a lower SAR value. While, the higher excitation power causes a higher SAR value. All the design and analysis are performed using the CST Microwave Studio</span>

scholarly journals Miniaturized implantable power transmission system for biomedical wireless applications

2020 ◽  
Vol 7 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Shuoliang Ding ◽  
Stavros Koulouridis ◽  
Lionel Pichon
Keyword(s):  
Reflection Coefficient ◽  
Radiation Pattern ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Power Transmission ◽  
Antenna Design ◽  
Wireless Power ◽  
Specific Absorption ◽  
Wireless Applications ◽  
Power Needs

AbstractIn this paper, a complete wireless power transmission scenario is presented, including an external transmission antenna, an in-body embedded antenna, a rectifying circuit, and a powered sensor. This system operates at the Industrial, Scientific, and Medical bands (902.8–928 MHz). For the antenna design, important parameters including reflection coefficient, radiation pattern, and specific absorption rate are presented. As for the rectifying circuit, a precise model is created utilizing off-the-shelf components. Several circuit models and components are examined in order to obtain optimum results. Finally, this work is evaluated against various sensors' power needs found in literature.

scholarly journals A Study of specific absorption rate in human head due to electromagnetic exposure to 4G signals

2019 ◽  
Vol 13 (3) ◽  
pp. 1161
Author(s):  
Siti Rokiah Abdul Mutalik ◽  
Mohd Hafizuddin Mat ◽  
Muzammil Jusoh ◽  
A. W. N. Husna
Keyword(s):  
Electromagnetic Field ◽  
Numerical Analysis ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Human Head ◽  
Dipole Antenna ◽  
Specific Absorption ◽  
Phantom Model

<span>This paper presents a numerical analysis of the specific absorption rate in SAM phantom exposed to electromagnetic field. A two set dipole antenna operating with 1800MHz and 2600MHz were placed parallel to the z-axis and rotated in clockwise from 0<sup>o</sup> (vertical) to 180<sup>o</sup> in steps of 30<sup>o</sup> to investigate the effect of frequency and polarization. The maximum average of 1gram and 10gram of tissue have been presented to show the effect of SAR in SAM phantom model. A comparison of the mass average SAR in head shows the 1g of SAR at 2600MHz is double to 1800MHz frequency. While for 10g of SAR, slightly different for both 1800MHz and 2600MHz.</span>

scholarly journals J-slot EBG structure for SAR Reduction of Dual Band J-slot Textile Antenna

2018 ◽  
Vol 12 (2) ◽  
pp. 794
Author(s):  
Ramesh Manikonda ◽  
Rajyalakshmi Valluri ◽  
Mallikarjuna Rao Prudhivi
Keyword(s):  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Wireless Body Area Network ◽  
Dual Band ◽  
Area Network ◽  
The Novel ◽  
Body Area ◽  
Electromagnetic Band Gap ◽  
Gain Enhancement ◽  
Textile Antenna

<p><span>In this article, the dual band is achieved with J-slot on rectangular Textile antenna on Jeans fabric as substrate. It resonates at the 2.4 GHz and 5.4 GHz of Wireless Body Area Network (WBAN) bands. The novel J-slot Electromagnetic Band Gap (EBG) array consists of 2x2 elements. It is used as superstrate of J-slot textile antenna for Specific Absorption Rate (SAR) reduction and gain enhancement. The Reflection coefficient and VSWR of dual band textile antenna are simulated and measured with and without human body<strong>.</strong></span></p>

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