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Design Strategy of Wearable Textile Antenna
Journal
Planar Antennas: Design and Applications
Date Issued
2021-01-01
Author(s)
Potey, P.
Tuckley, K.
Abstract
Communication proficiency demand is interminably increasing. With the arrival of innovative technologies like fifth-generation technology and IoT (Internet of things), numerous adaptable devices have come up in the market. This includes a body worn textile antenna. Predominantly in premeditated applications such flexible antennas are useful, such as diagnostics, for remote monitoring in health care, sports, and defense area. Wearable textile antennas utilizes daily use textile as substrate material and for radiating part thin bendable copper sheet; otherwise conductive fabric can be used. This chapter presents design of square patch antenna with four fabric materials like Lycra, cordura, cotton, and polyester. These four materials chosen have different value of dielectric constant and loss tangent. All antenna design is optimized with the help of IE3D simulator. Parametric analyses of all antenna parameters are inspected to understand the microwave characteristics of fabric. In regular use, these antennas are subject to many uncertainties, and also when it comes in the vicinity of human tissues, its radiation towards body should be within prescribed limits. These uncertainties alter dielectric properties of substrate material in the microwave band which results in fluctuation in antenna performance. Such issues are discussed in this chapter, and it also addresses human body sweating and bending effect on antenna working. To asses antenna performance it is fabricated with four different textile materials; some precise investigations, measurements, and software simulations were accomplished. It also proposed some guidelines for design with closing notes for the application of conformal antennas in ISM frequency range.