Design and Analysis of a Compact Band Notch UWB Antenna for Body Area Network

Rahman, H. M. Arifur; Khan, Mohammad Monirujjaman

doi:10.4236/jemaa.2018.109012

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…UWB also provides high data security and avoidance of multi-path fading. These features make UWB very attractive and, for decades, has been the primary choice for communication devices [1,2]. The design of a UWB antenna, particularly for a Wireless Body Area Network(WBAN), is difficult.…”

Section: Introductionmentioning

confidence: 99%

“…WBAN comprises the Body-centric Wireless Network (BCWN), which is a network of sensors positioned around the human body. These sensors can collect critical physiological information [1][2][3]. These measured physiological data from various sensors will be sent to a body-worn base unit and from there the data can be sent wirelessly to the hospital or emergency care givers for real time patient monitoring scenarios in healthcare.…”

Section: Introductionmentioning

confidence: 99%

“…For electromagnetic waves, the human body behaves as a lossy medium, and antenna performance is considerably affected by close proximity. It is therefore of great research interest to evaluate the performance of UWB antennas for on-body setups [2,3,9,10].…”

Section: Introductionmentioning

confidence: 99%

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Novel Design of UWB Jeans Based Textile Antenna for Body-Centric Communications

Khan¹,

Yeboah-Akowuah²,

Islam³

et al. 2022

Computer Systems Science and Engineering

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This research presents an ultra-wideband (UWB) textile antenna design for body-centric applications. The antenna is printed on a 1 mm thick denim substrate with a 1.7 relative permittivity. The jeans substrate is sandwiched between a partial ground plane and a radiating patch with a Q-shaped slot. The slotted radiating patch is placed above the substrate and measures 27.8 mm × 23.8 mm. In free space, the antenna covers the ultra-wideband spectrum designated by the Federal Communication Commission (FCC). Various parameters of the antenna design were changed for further performance evaluation. Depending on the operating frequency, the antenna's realized gain varied from 2.7 to 5 dB. The antenna achieved high radiation efficiency with an omnidirectional radiation pattern. A parametric study was performed in research on varying antenna substrates and other components of the antenna. The three outermost layers of the human body are used to model a human phantom for on-body simulation. After that, the antenna was placed at five different distances from the phantom. The findings demonstrate that at close distances to the phantom, the antenna's gain and efficiency at lower frequencies are reduced. The antenna's radiation efficiency and gain were much higher at higher frequencies for distances greater than 6 mm. Compared to free space, the antenna's radiation pattern was more omnidirectional, especially at higher frequencies. This antenna is novel, compact and has an ultra wide bandwidth, a maximum of 94.60% radiation efficiency and a 5 dBi gain that will make it a good candidate for body-centric communications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel Design of UWB Jeans Based Textile Antenna for Body-Centric Communications

Khan¹,

Yeboah-Akowuah²,

Islam³

et al. 2022

Computer Systems Science and Engineering

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“…Few antennas for body-centric networks operating at frequencies lower than mmWave [19][20][21][22][23][24][25], i.e., ultra wideband, demonstrated promising results, but had larger physical dimensions. Among the recent research made on millimeter wave designs, few of them performed notably well.…”

Section: Introductionmentioning

confidence: 99%

A Novel Design and Study of a Self-Complimentary Miniaturized Millimeter Wave Antenna for Body-Centric Networks

Alanazi

Khan

Rahman

et al. 2022

Wireless Communications and Mobile Computing

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A new self-complimentary compact antenna operating at 60 GHz within the millimeter wave frequency range has been presented in this paper. The design is intended for the wireless body-centric network (WBCN). The proposed compact design has a dimension of 4.5 × 6.03 × 1.59 mm3. The antenna was designed with multiple geometrical structures held upon a narrow feed line with a rectangular slot and parasitic elements to increase bandwidth. Free space simulations of the antenna produced optimistic results in terms of gain, radiation efficiency, and bandwidth; a maximum gain of 6.7 dB was achieved with an efficiency of 84.5%. Parametric studies were carried out to better understand its nature by modifying the key design aspects and comparing the outcomes. A 3D human torso phantom was virtually created with natural human body properties, and the on-body performance of the design was tested by placing the antenna in its near field. With some slight deviation from their peak performance, on-body simulations displayed better results in most of the cases. The antenna was positioned five different gaps from the torso for future investigations. The result of the distance-based study was amazingly good as the antenna performance was consistent throughout all distances. 10.77 GHz of bandwidth is found for the closest distance to the human torso, while the on-body radiation efficiency is also outstanding; the minimum radiation efficiency recorded is 73.78 when the antenna is just a couple of millimeters away. Overall, the comparison shows that the antenna worked best when it was placed only 2 mm apart from the body. Investigation indicates the antenna is a promising candidate for BCN applications because of its wider bandwidth and better on-body efficiency.

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