A Low-Profile Ultrawideband Antenna Based on Flexible Graphite Films for On-Body Wearable Applications

This paper presents a low-profile ultrawideband antenna for on-body wearable applications. The proposed antenna is based on highly conductive flexible graphite films (FGF) and polyimide (PI) substrate, which exhibits good benefits such as flexibility, light weight and corrosion resistance compared w...

Full description

Saved in:
Bibliographic Details
Published in:Materials 2021-08, Vol.14 (16), p.4526
Main Authors: Li, Wenhua, Zu, Haoran, Liu, Jinjin, Wu, Bian
Format: Article
Language:English
Subjects:
Antenna design
Antennas
Bandwidths
Corrosion resistance
Design
Flexibility
Graphite
Human body
Impedance matching
Musical performances
Reflectance
Substrates
Ultrawideband
Wearable computers
Wearable technology
Weight reduction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a low-profile ultrawideband antenna for on-body wearable applications. The proposed antenna is based on highly conductive flexible graphite films (FGF) and polyimide (PI) substrate, which exhibits good benefits such as flexibility, light weight and corrosion resistance compared with traditional materials. By introducing flaring ground and an arrow-shaped slot, better impedance matching is achieved. The wearable antenna achieves a bandwidth of 122% from 0.34 GHz to 1.4 GHz, with a reflection coefficient of less than −10 dB, while exhibiting an omnidirectional pattern in the horizontal plane. To validate the proposed design, the wearable antenna with a profile of ~0.1 mm was fabricated and measured. The measured results are in good agreement with simulated ones, which indicates a suitable candidate for on-body wearable devices.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14164526