Completely integrated multilayered weave electro-textile antenna for wearable applications

Abstract

This paper proposes a unique, first of its kind fabrication technique for the making of textile antennas. A novel method that provides scope for automation in textile antenna production is presented here. A completely integrated textile antenna fabrication method that eliminates the tasks of positioning and fastening of the various components of a patch antenna is discussed. The technique employs multilayer weaving for the production of a wearable antenna on a cotton substrate. Silver yarn is used for the conductive regions of the textile antenna. Two layers of woven cotton serve to isolate the radiating patch from the ground plane of the antenna. The designed antenna was chosen to operate at the frequency of 2.45 GHz for Wireless Local Area Network. The built prototype resonated at 2.43 GHz with a |S11|of −18.62 dB. The integrated textile antenna exhibited a gain of 1.06 dBi at 2.43 GHz.

Design and performance analysis of dual-band wearable compact low-profile antenna for body-centric wireless communications

“…The table shows that the proposed antenna has smaller dimensions than [15, 20, 23] and lower profile than [8, 15, 20, 23]. In addition, the proposed antenna has better radiation efficiency in FS than [19], better radiation efficiency than [22, 23] and better gain [20, 23] when it is mounted directly on a phantom as a wearable antenna for body-centric communications. However, the proposed antenna has outstanding features as a flexible and waterproof structure to achieving a totally garment integrated antenna as well as simple and low-cost fabrication process.…”

“…However, the size of almost all of the wearable antennas with AMC, HIS or EBG is relatively large. In addition, it should be mentioned that many of designs for wearable antennas are proposed for operation at 2.45 GHz [8, 10, 19–22] and only a few studies are conducted and reported in the open literature on design and performance of broadband and dual-band wearable antennas [9, 15, 23].…”

Screen Printed High Gain EBG-based Wearable Textile Antenna for Wireless Medical Band Applications

“…Furthermore, the air gap between conductive thread stitches affects the surface conductivity and antenna performance. A wearable electro-textile multilayer woven patch antenna [7] was fabricated on a cotton substrate to operate at 2.45 GHz. In the weaving process [8], conductive yarns of the patch antenna should be arranged according to the major current flow direction to reduce back lobes and improve the gain.…”

Conformal Quad-Port UWB MIMO Antenna for Body-Worn Applications

“…In [6], a button-shaped wearable antenna was designed that can be attached to clothing. In [7], the multilayer weaving method was used to create a textile antenna made of conductive threads. UWB antennas integrated with the 2.45 GHz frequency band were reported in [8,9] to achieve a high data rate using small transmit power.…”