Abstract
This paper presents the design and analysis of a miniaturized and novel wearable ultra-wideband (UWB) band-notch textile antenna for Body Area Networks (BANs). The major goal of building the antenna for wearable applications with band notch in X-band is to reject the downlink band (7.25 to 7.75 GHz) of satellite communication in the UWB frequency ranges of 3.1–10.6 GHz to keep away from interference. Computer Simulation Technology (CST) TM Microwave Studio, which is user-friendly and reliable, was used to model and simulate the antenna. The radiating element of the antenna is designed on Jeans’ textile substrate, which has a relative permittivity of 1.7. The thickness of the jeans’ fabric substrate has been considered to be 1 mm. Return loss, gain, bandwidth, impedance, radiation, and total efficiency, and radiation patterns are presented and investigated. The antenna is simulated placed on the three layers of the human body model, and the on-body results are summarized in comparison with free space. Results and analysis indicate that this antenna has good band-notch characteristics in the frequency range of 7.25 GHz to 7.75 GHz. The parametric study varying the relative permittivity of Jeans’ fabric substrate of this antenna is also evaluated. In addition, effects on the antenna parameters of variation of ground plane size have been reported. The antenna is 25 mm × 16 mm × 1.07 mm in total volume. Results reveal that this antenna achieves the design goal and performs well both in free space and on the body.
Highlights
Wireless Body Area Networks (WBANs) systems are growing to be a prevalent study area due to their medical, real-time health monitoring, and entertainment applications
This paper presents the design and analysis of a miniaturized and novel wearable ultra-wideband (UWB) band-notch textile antenna for Body Area Networks (BANs)
The antenna operates in the ultrawideband frequency bands of 3.1 to 10.6 GHz with band-notch capabilities in X-band to exclude the downlink band (7.25–7.75 GHz) of satellite communication
Summary
Wireless Body Area Networks (WBANs) systems are growing to be a prevalent study area due to their medical, real-time health monitoring, and entertainment applications. Researchers recently focused on designing a suitable wearable ultra-wideband antenna for efficient communication in BANs [4,5,6,7]. In WBANs scenarios, an antenna will be attached with the sensor system on the clothes of the human body In this case, a textile-based wearable band-notch antenna could be a good option. Jeans’ textile-based compact wearable UWB antenna with the band rejection of X-band downlink satellite communication systems (7.25–7.75 GHz) has not been reported in any literature of the author in this paper. The construction and analysis of a new and very tiny Jeans’ textile-based band notch, UWB wearable antenna for Body Area Networks (BANs) for real-time health monitoring applications are discussed in this research.
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