Flexible conductive fabric/E‐glass fibre composite ultra‐wideband antenna for future wireless networks

Abstract

This study highlights the integration potential of a highly conductive fabric into composite materials based on an efficient fabrication technology for coplanar waveguide flexible composite ultra‐wideband antenna radiating from 3.3 to 12 GHz. A thin sheet of a highly conductive fabric has been embedded by infusion process in a thin composite laminate made of E‐glass fibre mat and epoxy resin to fabricate a flexible conductive composite laminate. The antenna elements have been machined precisely by laser etching. The measured radiation efficiency reaches over 70% throughout the antenna operating frequency band with satisfactory radiation patterns and gain. The composite antenna exhibits reliable performance under different bending conditions as presented by the measurements. The high radiation performance, the seamless integration process and flexible mechanical properties of such composite antennas pave the way for their promising potential for integrating efficient antennas into various devices and objects made of composite laminate materials.

One‐dimensional electrospun ceramic nanomaterials and their sensing applications

“…For next-generation smart electronic devices, scalable and flexible electronic devices are ideal attributes that can be employed in transparent electrodes, 108 screen displays, 109 radio frequency identification, 110 high-sensitivity sensors, 111 and flexible batteries. 112,113 Particularly, wearable systems, such as personal health monitors and medical equipment, require a complete set of flexible devices, including stretchable sensors, flexible transmission devices, and foldable battery components.…”

Compact UWB flexible elliptical CPW‐fed antenna with triple notch bands for wireless communications

“…Additionally, the flexible UWB antenna has become a very popular choice as it can enable UWB and other wireless systems to be used on curved surfaces. The researchers have reported many flexible UWB antenna configurations . But these reported flexible UWB antennas also suffer from the interference with several coexisting narrow band wireless communication systems that works within the UWB spectrum.…”

“…The researchers have reported many flexible UWB antenna configurations. [17][18][19] But these reported flexible UWB antennas also suffer from the interference with several coexisting narrow band wireless communication systems that works within the UWB spectrum. So, the design of flexible UWB antenna with band-notched characteristics 20,21 has become a major point of consideration to avoid interference impacts and to provide conformability at the time of applications due to its flexible nature.…”

Flexible polymer/fabric fractal monopole antenna for wideband applications

“…Bendable materials such as conductive fabrics [6][7][8], liquid metal alloys [9], conductive fibres on textiles [10], polymer composites [1,4,6,8,[11][12][13][14][15][16][17] and paper [18] have been widely used in current designs of flexible antennas. Various types of flexible antennas have been reported in the literature during the last years including monopoles [4,6,14,[19][20][21], dipoles [20], slot antennas [22], electromagnetic band gap backed monopole [23] and yagi-uda antennas [24], dipoles with a rectangular reflector [11,13], artificial magnetic conductor surface backed Yagi antennas [25] and patch antennas [8,15]. The majority of these antenna designs have a narrow bandwidth to cover only ISM 2.45 GHz [8, 11-13, 15, 20, 21, 23-25] and or WLAN 5.15-5.725/ISM 5.75-5.82 GHz [13,21].…”