scholarly journals Integrated Miniature Multiband Antenna Designed for WWD and SAR Assessment for Human Exposure

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Brahim Fady ◽  
Jaouad Terhzaz ◽  
Abdelwahed Tribak ◽  
Fatima Riouch
Keyword(s):  
Human Body ◽  
Human Exposure ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Low Cost ◽  
Antenna Design ◽  
Head Model ◽  
Use Case ◽  
Wireless Devices ◽  
Multiband Antenna

The article introduces a new, low-cost, integrated, multiband antenna design intended for wristbands and wearable wireless devices (WWD). With a miniaturized planar square-shape sizing 29 × 29 mm2, the antenna can fit easily inside WWDs. The proposed design covers the most used frequency bands such as LTE2300, ISM2400, LTE2600, WiMAX3500, WiMAX5200, and ISM5800 in which the antenna reaches up to −25 dB and 6.9 dBi in terms of S11 and gain, respectively. To evaluate the exposure amenability of design on human body, we studied the specific absorption rate (SAR) of the design in two main use cases: multilayered human wrist model and a SAM (Specific Anthropomorphic Mannequin) head model. In each use case, the SAR results in different positions for all frequencies are compared to FCC standards.

scholarly journals Novel Low-Cost Integrated Multiband Antenna Design Customized for Smartwatch Applications with SAR Evaluation

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Brahim Fady ◽  
Abdelwahed Tribak ◽  
Jaouad Terhzaz ◽  
Fatima Riouch
Keyword(s):  
Specific Absorption Rate ◽  
Low Cost ◽  
Federal Communication Commission ◽  
Cost Effective ◽  
Antenna Design ◽  
Human Hand ◽  
Excellent Performance ◽  
Multiband Antenna ◽  
Antenna Performance ◽  
Wearable Systems

This paper presents a novel low-cost integrated multiband antenna design customized for smartwatch applications and wearable devices. The design consists in using a broadband planar patch antenna with circular microstrip lines and a miniaturized feeding-point with a structure of 30 × 30 × 1.6 mm3, and it is easy to deploy inside the smartwatch and cost-effective for the wearable device industry. The parametric study and final dimensions of the design and the measured results of the reflection and radiation pattern are discussed. The antenna with maximum gain up to 6.6 dBi and S11 up to −22 dB exhibits excellent performance for all the frequencies required in wearable systems such as 1.9 GHz, 2.3 GHz, 2.4 GHz, 2.6 GHz, 5.2 GHz, and 5.8 GHz. We drew a comparison between similar research and this work in terms of antenna performance. Furthermore, we investigate the specific absorption rate (SAR) performance of the antenna for the smartwatch application, using both human hand wrist multilayer and SAM head mouth models. The SAR results in different positions for all the frequencies are compared to the Federal Communication Commission (FCC) standards.

Variability of Specific Absorption Rate of Human Body for Various Configurations of Tablet Computer in Vicinity of Abdomen

2015 ◽  
Vol E98.B (7) ◽  
pp. 1173-1181 ◽  
Author(s):  
Akihiro TATENO ◽  
Tomoaki NAGAOKA ◽  
Kazuyuki SAITO ◽  
Soichi WATANABE ◽  
Masaharu TAKAHASHI ◽  
...  
Keyword(s):  
Human Body ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Tablet Computer ◽  
Specific Absorption
Sign in / Sign up

Export Citation Format

Share Document