However, mostly UWB band notch antenna designs have been focused on FR4 substrate. Band rejection technique has been used in UWB antennas for X-band downlink satellite communication systems (7.25–7.75 GHz). In some articles, authors used band rejection for WiMAX and WLAN. Still now, there is no breakthrough in the design of UWB suitable band notch antennas. However, different authors have used various techniques to integrate band notch in UWB antennas. Ultra-wideband band north antenna has been pretend in open literature in. UWB antenna design and radio channel modeling for WBANs have been presented in. Recently, there has been tremendous growing research and interest realized for the design of UWB wearable antennas. For the design of an efficient UWB system for BSNs, an antenna needs to meet the special requirements in terms of impedance bandwidth, return loss, radiation efficiency, gain and radiation pattern. Due to all these attractive characteristics, it will be a good candidate for body sensor networks for a mobile healthcare system.Īntennae are one of the most important components for any wireless communication system. This antenna shows very good results it has compact size and is printed on textile material, and has band notch characteristics to avoid interference. The antenna is printed on 1 mm Jeans’ textile with the dielectric constant of 1.7.
The overall dimension of the antenna is 25 mm in length and 16 mm in width, which is very compact. The simulated results show that this antenna has very well band notch characteristics in the frequency range of 7.25–7.75 GHz. 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 performance parameters, such as return loss, bandwidth, gain, radiation efficiency and radiation patterns of this antenna are demonstrated and analyzed.
The antenna is a textile-based UWB notch antenna, as it was printed on jeans’ textile substrate. 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 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.
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