Body-Worn Antennas Making a Splash: Lifejacket-Integrated Antennas for Global Search and Rescue Satellite System

Lilja, Juha; Pynttari, V.; Kaija, T.; Makinen, R.; Halonen, Eerik; Sillanpää, Hannu; Heikkinen, J.; Mäntysalo, Matti; Salonen, P.; Maagt, P. de

doi:10.1109/map.2013.6529385

Cited by 47 publications

(34 citation statements)

References 13 publications

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“…These systems have received a lot of attention and many studies, in a broad application range, are found in literature, such as (but not limited to): integrated radar for firefighters [3], search and rescue systems in lifejackets [4], and wearable biosensor systems [5].…”

Section: Introductionmentioning

confidence: 99%

Compact Half Diamond Dual-Band Textile HMSIW On-Body Antenna

Agneessens

Rogier

2014

IEEE Trans. Antennas Propagat.

195

127

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Section: Introductionmentioning

confidence: 99%

Compact Half Diamond Dual-Band Textile HMSIW On-Body Antenna

Agneessens

Rogier

2014

IEEE Trans. Antennas Propagat.

195

127

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“…Since above textile materials have similar electromagnetic parameters, comparable numerical results have been noted. Finally, two compact antennas integrated on an inflatable life jacket have been designed and tested in [93], for operation with a commercial COSPAS-SARSAT user terminal. A shorted-patch antenna (28.3cmx6.5cmx1.75cm) radiates at 406MHz, while a meandered dipole (29.7cmx3.3cm wide) with a ground strap is designed to operate at 121.5MHz.…”

Section: Wearable Antennas For Search and Rescue Systemsmentioning

confidence: 99%

“…Helmet antennas for narrowband tactical satellite communications at around 300MHz [79] as well as antennas to be integrated into soldier/police armor vests [69]- [70] have also been designed. Wearable antennas for the user terminal of satellite-based search-and-rescue systems (Cospas-Sarsat system at 406MHz) have been proposed in [89]- [93]. At the UHF upper band, wearable antennas operating around 868MHz [94]- [95], [97]- [104], have been suggested for remote health monitoring systems, remote environmental parameters monitoring for rescue operators, security systems, portable short range radars for insitu hazard monitoring, as well as in RF energy harvesting systems [105]- [107].…”

Section: Introductionmentioning

confidence: 99%

Wearable Antennas for Off-Body Radio Links at VHF and UHF Bands: Challenges, the state of the art, and future trends below 1 GHz

Nepa

Rogier

2015

IEEE Antennas Propag. Mag.

108

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Abstract-An in-depth survey of wearable antennas for offbody radio links in the VHF and UHF frequency bands (below 1 GHz) is presented. The review encompasses distinctive specifications, design criteria and challenges, material characterization procedures, antenna topologies and technologies, multi-antenna systems, dedicated testing procedures, applications and future trends.Index Terms-Wearable antennas, body-worn antennas, textile antennas, embroidered antennas, VHF antennas, UHF antennas, antennas for body-centric communications, antennas for body area networks, antennas for personal area networks, antennas for off-body wireless communications. I. INTRODUCTIONhere are several existing and forthcoming wireless applications that either require or can benefit from one or more antennas that are directly stitched on a piece of clothing or a garment, or integrated into a personal accessory (such as shoes, glasses, buttons, helmets). These antennas are usually referred to as body-worn antennas, textile antennas, BAN (Body Area Network) antennas, antennas for body-centric communications, wearable antennas. The last term is the one that is going to be used in this paper, as it denotes any antenna that is small and light enough to be worn or carried on one's body.In the last decades, hundreds of scientific papers on wearable antennas have been published in the open literature [1]- [8]. Therefore, for the sake of completeness and clarity, a valuable analysis of the state-of-the-art on wearable antennas should be limited to antennas for a specific application, a given frequency range, or a chosen antenna technology. In this context, the present review focuses on wearable antennas operating in the VHF band and part of the UHF frequency band (below 1 GHz). Choosing 1 GHz as an upper boundary for this review is highly relevant, as the operating frequency is usually the main parameter to discriminate among available antenna topologies, technologies and characterization techniques. Moreover, we limit our discussion on antennas for off-body radio links, also excluding antennas integrated into mobile terminals/cases and operating close to the body. Specifically, only wearable antennas that can be used separately from the radio unit are of interest here.VHF/UHF wearable antennas are mostly used in professional mobile radio communications for soldiers, emergency operators and law-enforcement personnel. VHF As far as VHF/UHF wearable antennas are concerned, many of their distinctive features are related to the fact that the corresponding free-space wavelength (with 30cm<<10m when 30MHz

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“…On the one hand, different kinds of wearable antennas integrated on commercial life-jackets have been presented over the past years for the Cospas-Sarsat system at the ultra-high frequency of 406 MHz [6,8]. However, these designs do not fully consider the effect of variations in the antenna's operating conditions due to the wearer re-orientation and movement.…”

Section: Introductionmentioning

confidence: 99%

Wearable self‐tuning antenna for emergency rescue operations

Baroni

Nepa

Rogier

2016

IET Microwaves, Antennas & Propagation

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In this study, the design, hardware implementation and characterisation of a self-tuning 406 MHz antenna of a Cospas-Sarsat personal locator beacon are presented. The realised prototype is able to perform automatic tuning of the antenna under time-varying environmental conditions due to human body movements and sea water proximity. The impedance tuning is performed by tracking the instantaneous value of the reflection coefficient and by modifying an appropriate impedance matching network according to a real-time adaptive algorithm. A resilient default/backup software architecture has been designed to ensure that tuning guarantees a return loss higher than 10 dB for the personal locator beacon in most of impedance mismatching conditions.

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Body-Worn Antennas Making a Splash: Lifejacket-Integrated Antennas for Global Search and Rescue Satellite System

Cited by 47 publications

References 13 publications

Compact Half Diamond Dual-Band Textile HMSIW On-Body Antenna

Compact Half Diamond Dual-Band Textile HMSIW On-Body Antenna

Wearable Antennas for Off-Body Radio Links at VHF and UHF Bands: Challenges, the state of the art, and future trends below 1 GHz

Wearable self‐tuning antenna for emergency rescue operations

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