A wearable antenna based on fabric materials with circular polarization for body-centric wireless communications
A compact and simple structure antenna for wearable application at 2.4 GHz is presented and studied. The felt fabric material is used in this paper due to its suitable thickness and dielectric constant. This material provides high flexibility which can be easily worn on a body and incorporated in...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Institute of Advanced Engineering and Science
2020
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/78682/ http://irep.iium.edu.my/78682/ http://irep.iium.edu.my/78682/ http://irep.iium.edu.my/78682/1/78682_A%20wearable%20antenna%20based%20on%20fabric.pdf http://irep.iium.edu.my/78682/2/78682_A%20wearable%20antenna%20based%20on%20fabric_SCOPUS.pdf |
| Summary: | A compact and simple structure antenna for wearable application at 2.4 GHz
is presented and studied. The felt fabric material is used in this paper due to
its suitable thickness and dielectric constant. This material provides high
flexibility which can be easily worn on a body and incorporated into our
daily clothes. In view of the fact that the design will work on a moving
person, therefore a circularly polarized antenna is desired to optimize the offbody communication link. The Cicular Polarization (CP) is achieved by
introducing truncated corners on the patch. The antenna size is 60 × 60 × 2
mm3. The Axial Ratio (AR), the Front to Back Ratio (FRB) and the realized
gain are 0.96 dB, 10.5 dB, and 4.62 dB, respectively indicating a good
performance of the antenna at the desired frequency. Furthermore, the
antenna was investigated when operating near the body. The obtained result
shows that the design has performance similar to the case of free space. This
is due to the present of the full ground plane that acts as a shielding between
the antenna and body. Finally, the Specific Absorption Rate (SAR) is carried
out and showed that the antenna has a level less than the limits fixed by the
FCC standard. Therefore, the antenna could be useful for wearable
applications. |
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