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>

scholarly journals Dual Band Wearable Antenna for IOT Applications

2019 ◽  
Vol 9 (1) ◽  
pp. 1515-1518
Keyword(s):  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Ground Plane ◽  
Ethylene Vinyl Acetate ◽  
Dual Band ◽  
Area Network ◽  
Body Area ◽  
Bandwidth Enhancement ◽  
Iot Applications ◽  
Wearable Antenna

A dual band wearable antenna operating on 2.6 GHz (2570-2620 MHz FDD/TDD) and 5.2 GHz (802.11a) bands for Body Area Network (BAN) application is presented. The stack substrates of Felt and ethylene-vinyl acetate (EVA) foam are used to make the structure flexible. Maximum gain of 2.75 and front to back ratio of 8.35 is achieved on industrial scientific and medical (ISM) band. Additional bandwidth enhancement has been achieved by creating slots on partial ground plane. The calculated specific absorption rate (SAR) value is 1.33 W/kg for 1 g of body tissue. Simulated and measured results are presented for the proposed structure.

scholarly journals BENDING AND CRUMPLING DEFORMATION STUDY OF THE RESONANT CHARACTERISTIC AND SAR FOR A 2.4 GHZ TEXTILE ANTENNA

2015 ◽  
Vol 77 (10) ◽  
Author(s):  
Norfatin Akma Elias ◽  
Noor Asmawati Samsuri ◽  
Mohamad Kamal A Rahim ◽  
Chinthana Panagamuwa ◽  
Will Whittow
Keyword(s):  
Resonant Frequency ◽  
Rapid Growth ◽  
Wireless Body Area Network ◽  
Body Area Network ◽  
Area Network ◽  
Geometrical Shape ◽  
Body Area ◽  
Wearable Antennas ◽  
Textile Antenna ◽  
Resonant Characteristic

Over recent years, there has been an explosive growth of interest in the development of flexible wearable antennas due to rapid growth in Wireless Body Area Network (WBAN) applications. However, the antenna is subjected to deformation when being worn by users. Therefore, it is compulsory to analyze the absorption of electromagnetic (EM) radiation and the antenna performances as a function of the deformation conditions since the antenna is not in its normal flat conditions anymore. In this paper, two types of deformations; bending and crumpling are analyzed by means of CST Microwave Studio. The peak SAR10g demonstrates increment up to 65.7 % and 48.7 % under bending and crumpling deformation respectively. Moreover, the crumpling is more sensitive to the geometrical shape and composition of the exposed body area if compared to bending. Moreover, the detuning effects of the resonant frequency are more significant for crumpling cases.

scholarly journals Design of a Dual-Band On-Body Antenna for a Wireless Body Area Network Repeater System

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Kyeol Kwon ◽  
Jaegeun Ha ◽  
Soonyong Lee ◽  
Jaehoon Choi
Keyword(s):  
Human Body ◽  
Return Loss ◽  
Wireless Body Area Network ◽  
Dual Band ◽  
Body Area Network ◽  
Area Network ◽  
Resonance Property ◽  
Body Area ◽  
Dual Band Antenna ◽  
Mics Band

A dual-band on-body antenna for a wireless body area network repeater system is proposed. The designed dual-band antenna has the maximum radiation directed toward the inside of the human body in the medical implantable communication service (MICS) band in order to collect vital information from the human body and directed toward the outside in the industrial, scientific, and medical (ISM) band to transmit that information to a monitoring system. In addition, the return loss property of the antenna is insensitive to human body effects by utilizing the epsilon negative zeroth-order resonance property.

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