Antennas, Phantoms, and Body‐Centric Propagation At Millimeter‐Waves

Tang, Adrian; Guraliuc, Anda R.; Sauleau, Ronan; Valerio, Guido

doi:10.1002/9781119082910.ch7

Cited by 2 publications

(1 citation statement)

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“…A number of commercial wearable devices have been introduced and available in the market; however, they are restricted to certain applications and demand more versatility, compactness and diversity [7]. A wearable antenna is often regarded as an integral part of a wireless wearable device and its performance should guarantee a satisfactory wireless communication link between the communicating nodes positioned on different parts of the human body and also with off-body units to ensure the required power transfer.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental analyses of wearable antennas, including novel fabrication and metrology techniques

2021

Metrology for 5G and Emerging Wireless Technologies

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Most fifth-generation (5G) mobile network applications require wearable antennas to be unobtrusive, low-profile, low-power and electrically small. Such antennas are a crucial element in wearable body-centric wireless system designs for delivering 5G user's experience. Wearable antennas can be employed in a wide range of applications from communicating, harvesting energy to sensing capabilities. For this purpose, fabrics and novel materials such as graphene are been explored in order to cope with the wearable device demands in terms of flexibility, conform-ability and lightweight. Similarly, novel fabrication techniques for wearable antenna prototyping such as screen printing, inkjet printing, embroidery and cutters are been investigated to exploit the unique characteristics of various materials. These innovative fabrication methods allow a high degree of fabrication precision enabling their uptake for 5G applications. Due to power absorption by lossy human body tissues, a distorted radiation pattern and lower radiation efficiency are envi-saged when they are worn on and at proximity to the body. Furthermore, when designing the antenna, the body proximity effects must be considered to prevent significant antenna detuning and the consequent mismatch. Numerical and experimental human body phantoms are used with a view to simulate its impact. This chapter presents an analysis of novel fabrication methods for wearable antennas, methodologies and measurement techniques to characterise their perfor-mance in a dynamic body-worn communication environment. This chapter delivers a review of different novel fabrication techniques for wearable antennas such as various printing processes, machine embroidery and laser methods. Follow by a metrology section, where numerical and experimental human phantoms are explained and durability tests described. Three examples of 5G wearable antennas

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Section: Introductionmentioning

confidence: 99%

Numerical and experimental analyses of wearable antennas, including novel fabrication and metrology techniques

2021

Metrology for 5G and Emerging Wireless Technologies

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Near-Field User Exposure in Forthcoming 5G Scenarios in the 60 GHz Band

Guraliuc

Zhadobov

Sauleau

et al. 2017

IEEE Trans. Antennas Propagat.

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International audienceThe development of millimeter-wave (mmW) technologies comes with concerns related to the user exposure. A detailed numerical dosimetry study is performed for a terminal with a 60 GHz antenna module for several representative human body exposure scenarios within 5G small cells. First, numerical considerations are made regarding the user terminal and human body modeling. Then, the user exposure levels in the near field are analyzed for phone call and browsing scenarios. Results show that power absorption is locally distributed on the ear helix and fingertips. Moreover, we demonstrate that the presence of a hand in the phone call scenario increases absorption in the head. The impact of the human body on the antenna performance is also analyzed. © 1963-2012 IEEE

show abstract

Antennas, Phantoms, and Body‐Centric Propagation At Millimeter‐Waves

Cited by 2 publications

References 82 publications

Numerical and experimental analyses of wearable antennas, including novel fabrication and metrology techniques

Numerical and experimental analyses of wearable antennas, including novel fabrication and metrology techniques

Near-Field User Exposure in Forthcoming 5G Scenarios in the 60 GHz Band

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