International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 04 | Apr 2023
p-ISSN: 2395-0072
www.irjet.net
A Novel Three-Cut Circle Tri-Band Flexible Antenna for Wireless Application Aditya Tiwari1, Kanchan Cecil2, 1 ME (Master of Engineering) Department of Electronics and Telecommunication,
Jabalpur Engineering College, 482011, Jabalpur M.P, India.
2 Professor of Electronics and Telecommunication Department,
Jabalpur Engineering College, 482011, Jabalpur M.P, India. ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - Due to their smart features of low profile, small size, ease to use, flexible, affordable, and portable wearable antenna have gained a lot of interest in recent years .when applied to various body parts of a human such antennas must conform, hence they must be implemented with flexible materials, a low profile design. A Novel three-cut circle tri-band flexible antenna for wireless application is designed to be simulated in CST software to achieve a body area network for three bands of frequencies with better bandwidth operating at 3 resonant frequencies 3.892 GHz, 5.477 GHz, and 11.296 GHz. Material of substrate of the antenna is denim jeans with a dielectric constant of 1.7 and a conductive element such as copper tape. The board size is 43*43mm2. The bandwidths for the proposed design are 34.4% 12.05% 39.05% for a frequency spectrum of 3.2677 GHz to 12.12 GHz which is considered to be the optimal bandwidths for the antenna. The presented tri-band antenna can be used in wearable devices in wireless body area networks (WBANs). Key Words: CST software, rectangular ground, wearable antenna, wireless application, planar micro-strip antenna.
1. INTRODUCTION In recent years, wireless body area networks have been widely deployed in a variety of industries, including the military, business, entertainment, and health [1, 2]. The wearable antenna, a crucial component of WBANs, is typically worn on the body, applied to clothes, a helmet, or the wrist, for instance [3-5].The high dielectric constants and imperfections that are present in human tissues often have a negative influence on wearable antenna performance. Similar to how wearable antennas affect the human body, they must adhere to established safety regulations and are typically assessed in terms of SAR values. Recently, meta-material (MTM) structures have proven to be successful at lowering antenna radiation, SAR values to the human body. Examples include artificial magnetic conductor (AMC) structures [6, 7], EBG structures [8, 9], and meta-material surface (MS) surfaces [10]. Reference [10] provides an antenna with an MS structure, whereas sources [6, 7], [8, 9], and [10] address wearable antennas with single-band AMC structures and dual-band EBG structures, respectively. Yet, these metamaterial constructions don't employ several operating frequency ranges. As wireless body area networks advance, functional requirements for wearable electronics rise. Multi-band antennas have more compact construction than combinations of singleband antennas, and these requirements can be satisfied. Several wearable dual-band antennas have been developed as of late [8, 9, 11, and 12]. In reference [11], a dual-band wearable antenna without loading meta-materials was proposed. The references [8, 9, and 12] provide a range of dual-band wearable antennas with meta-material constructions. There have also been some suggestions for multi-band and triple-band wearable antennas [13–18], which would increase the number of bands even more. Yet, the safety for the human body has not been determined. A triple-band antenna with a Hilbert-shaped array for the radiating layer and a periodic square groove on the ground was depicted in reference [13]. For off-body communication, a tiny, low-profile button antenna with operating frequency bands of 0.867, 2.38, and 5.85 GHz was included [14]. For wearable WiMAX, military, and ISM applications, a triple-band open-ring antenna was proposed in [15]. A tri-band dual-polarized multiple-input multiple-output belt-strap antenna for the intelligent Internet of Medical Things was achieved in [16]. In [17], a wearable multi-band CPW-fed slot dipole antenna for WBAN applications was also incorporated. This antenna supports 2.4/5.2/5.8 GHz WLAN, 3.5 GHz WiMAX, and 4.4 GHz C-bands. Using a slotted radiator and a 7 by 7 array of periodic square patches, Reference [18] developed a hepta-band antenna. By employing an inductive ground plane, this antenna's SAR value is reduced. As can be seen, most recent research on wearable antennas using meta-material structures focuses on constructing single-band or dual-band antennas, with triple-band or multi-band antennas being utilised far less frequently. The use of multiband or triple-band meta-material structures hasn't improved the performance of wearable antennas either.
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