Abstract
In this paper, a novel and compact ultra-wideband (UWB) antenna with band-notched characteristics for body-centric communication is examined and implemented. The shape of the designed antenna looks like a ‘swan’ with a slotted patch. The performance parameters of this antenna for both the free space and on-body scenario for body-centric communication are analyzed and investigated through the simulation process using Computer Simulation Technology (CST). This antenna can avoid the interference caused by Wireless Local Area Network (WLAN) (5.15–5.825 GHz) and Worldwide Interoperability for Microwave Access (WiMAX) (5.25–5.85 GHz) systems with a band notch because of newly designed UWB antenna is revised small form factor sized. At first, the performance parameters like return loss response, gain, radiation patterns, and radiation efficiency on the free space of this UWB antenna are evaluated. After that, the on-body performance parameters of the antenna are also examined to place the antenna at various distances like 2 mm, 4 mm, 6 mm, 8 mm, and 10 mm away from 3-layers of phantom body model at frequencies of 3.5 GHz, 5.2 GHz, 5.8 GHz, 8 GHz, and 10 GHz. All the on-body performance parameter results are compared and analyzed with free space performance parameter results. Lastly, by changing patch slot length and ground plane length, parametric studies were done for performance comparison. Due to its compact size, novel shape and significant on-body performance, the proposed antenna is very suitable for multi-purpose healthcare applications and sports performance monitoring.
Highlights
Because of its unique properties, UWB technology has attracted both academics and industry in recent years
CSSE, 2022, vol.40, no.2 piqued the interest of many academics in this field; as a result, designing UWB antennas is growing increasingly famous by the day [1]
This paper proposes a very compact and novel band notch (5.2 GHz–5.8 GHz) antenna and designed using Computer Simulation Technology (CST) tool in the free space environment
Summary
Because of its unique properties, UWB technology has attracted both academics and industry in recent years. That interference makes a device inefficient because of many narrow frequency bands such as (5.2 GHz and 5.7 GHz) of different wireless communication systems [8]. Ultra-wideband and wearable technology needs compact size due to longer battery life and power-efficient communication without interference. A band-notch technique is required to design interference-free, power-efficient communication. There is a minimal study of UWB band-notch antenna for wearable application in body-centric communications. In UWB on-body communications, wearable antennas need to be smaller in size and less interference to provide power-efficient communication. For UWB band notch wearable body centric communications, this novel shape antenna has not been proposed by any authors in the literature. The antenna is very less sensitive to the human body The advantage of this antenna is that it has compact size, novel structure, band notch characteristics in the UWB frequency range.
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