Abstract
The development and study of a novel and very miniaturized ultra-wideband (UWB) wearable band-notch antenna for body sensor networks (BSNs) and mobile healthcare system have been presented in this paper. A very user-friendly and reliable software Computer Simulation Technology (CST)TM Microwave Studio was used for the modeling and simulation purpose of this antenna. The antenna is a textile-based UWB notch antenna, as it was printed on jeans’ textile substrate. The simulated performance parameters, such as return loss, bandwidth, gain, radiation efficiency and radiation patterns of this antenna are demonstrated and analyzed. The main aim of this paper was to design a textile-based compact UWB antenna with the characteristics of band notch in X-band to reject the down link band (7.25 GHz–7.75 GHz) of satellite communication in the UWB frequency ranges of 3.1 to 10.6 GHz in order to avoid interference. The simulated results show that this antenna has very well band notch characteristics in the frequency range of 7.25–7.75 GHz. The overall dimension of the antenna is 25 mm in length and 16 mm in width, which is very compact. The antenna is printed on 1 mm Jeans’ textile with the dielectric constant of 1.7. This antenna shows very good results; it has compact size and is printed on textile material, and has band notch characteristics to avoid interference. Due to all these attractive characteristics, it will be a good candidate for body sensor networks for a mobile healthcare system.
Highlights
A day's wireless body area networks (WBANs) systems are becoming very popular research topic because of the applications of it in the field of medical, real time health monitoring, entertainments
This paper developed and analyzed a novel and very compact Jeans' textile based band notch UWB wearable antenna for the health monitoring applications in body sensors networks
The antenna is very compact in size as 25 mm in length and 16 mm in width of the full antenna with substrate and ground plane
Summary
A day's wireless body area networks (WBANs) systems are becoming very popular research topic because of the applications of it in the field of medical, real time health monitoring, entertainments. The low power limit (−44.3 dBm) of UWB systems, high data rate, compact size, large bandwidth attracts a wide range of applications in short range communications, wearable applications in sensor networks, body area networks, wireless positioning system, IoT applications, biomedical imaging, and high data rate small range communications. Ultra wideband antenna is the most important elements for establishing UWB communications. Important issue remains in terms of interference with narrowband frequency in the UWB frequency regions 3.1–10.6 GHz. UWB experiences from narrow band interference from WiMAX, WLAN and X band satellite communication channels. It is very crucial to filter out these unwanted narrowband signals in order to develop power efficient UWB communication system for
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