Design of Slotted Hexagonal Wearable Textile Antenna Using Flexible Substrate

Design of Slotted Hexagonal Wearable Textile Antenna Using Flexible Substrate

Lalita Kumari (CBS College of Engineering and Management, India), Lalit Kaushal (CBS College of Engineering and Management, India) and Deepak Kumar (CBS College of Engineering and Management, India)
DOI: 10.4018/978-1-5225-9683-7.ch004

Abstract

In this chapter, a dual wideband textile antenna is proposed for WLAN and WiMax application. For antenna to be wearable, jeans material is used as a substrate to make ground plane, and copper tape is used to make patch of the anticipated antenna. The proposed antenna shows dual band performance with bandwidth of 82.48% covering 1.456 GHz to 3.5 GHz and 13.39% covering 4.32 GHz to 4.94 GHz. The simulated results like reflection coefficient, directivity, and radiation characteristics have been studied and analyzed.
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Antenna Design

The textile antenna substrate is made using a 1 mm thick jeans textile. Jeans is chosen in this work based on its cost effectiveness, ease of accessibility and ease of fabrication in comparison to other textile materials. The copper tape is used to form the ground plane and radiating elements of the anticipated antenna. The antenna results were obtained through CST software (Singh, Singh, Saxena [16-20]. Figure 1 illustrates the design of antenna consist of partial ground, made of copper adhesive tape of thickness 0.038mm and substrate is made of jeans with thickness 1mm.The proposed antenna provides triple band and hence suitable for wireless communication system.

The length and width of ground plane are 17 mm and 60 mm. The general permittivity of jeans substrate is 1.7 with tangent digression of 0.025.The radius of hexagonal patch is 25 mm with two square slots with measurement 10x10 mm and the dimension of microstrip feed line is 30.9 x2 mm. The radius of circle slot is 14 mm.

Figure 1.

Configuration of Antenna

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Results And Discussions

This work not just goes for growing such wearable textile systems mostly for expert firemen and crisis calamities work force yet in addition for regular citizen casualties of common and different catastrophes. Figure 2 shows return loss Vs frequency graph at resonant frequency 1.708 GHz. The 3D characteristics of proposed antenna are shown in Figure 3 which shows directivity 2.682 dBi at 1.708 GHz.

Figure 2.

Reflection coefficient Vs frequency

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