Antennas for a body area network

Adel, Hans; Wansch, Rainer; Schmidt, Carsten H.

doi:10.1109/aps.2003.1217499

Cited by 8 publications

(8 citation statements)

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“…Wearable antennas for BAN radio links in the 868MHz ISM band and contiguous bands have been realized with either a single metallization layer [94]- [95], [104], or a multi-layer grounded structure [97]- [103] (Fig. 8).…”

Section: A Wearable Antennas For the 868mhz Ism Band And Contiguous mentioning

confidence: 99%

“…By using high permittivity ceramic substrates, two compact narrowband antennas have been designed to operate at 868MHz [97]: a coaxial-fed patch and a PIFA. The size of the circularly-polarized patch (single-feed square patch with truncated edges) is smaller than 3cm, and the substrate thickness is only 2mm (the relative permittivity of the ceramic substrate is 38).…”

Section: A Wearable Antennas For the 868mhz Ism Band And Contiguous mentioning

confidence: 99%

“…Nonetheless, compact antennas with a size of the order of a quarter-wavelength can also be used without sacrificing too much antenna efficiency. Most of the antennas described in the following subsections are for personal shortrange communications at around 800MHz [94]- [95], [97]- [103], and bodyworn transponders for identification, tracking and sensing at 860-960MHz [108]- [142].…”

Section: Uhf Upper Band Wearable Antennasmentioning

confidence: 99%

“…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]. Both printed and textile wearable antennas operating at the UHF RFID 840-960MHz band can be used for remote wireless identification and tracking of persons [108]- [141].…”

Section: Introductionmentioning

confidence: 99%

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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.

106

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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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Section: A Wearable Antennas For the 868mhz Ism Band And Contiguous mentioning

confidence: 99%

Section: A Wearable Antennas For the 868mhz Ism Band And Contiguous mentioning

confidence: 99%

Section: Uhf Upper Band Wearable Antennasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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.

106

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“…Given that prototype capsules have already been developed with telemetry systems operating at these less-than-optimal frequency ranges [9], [13], [14] and above [15], there is clearly a need for an improved solution. Any such solution must be constructed from readily available, inexpensive components in order to meet the low-cost requirement for these one-time-only/disposable devices.…”

Section: Introductionmentioning

confidence: 99%

In SituCharacterization of Two Wireless Transmission Schemes for Ingestible Capsules

Wang

Drysdale

Cumming

2007

IEEE Trans. Biomed. Eng.

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Abstract-We report the experimental in situ characterization of 30-40 MHz and 868 MHz wireless transmission schemes for ingestible capsules, in porcine carcasses. This includes a detailed study of the performance of a magnetically coupled near-field very high-frequency (VHF) transmission scheme that requires only one eighth of the volume and one quarter of the power consumption of existing 868-MHz solutions. Our in situ measurements tested the performance of four different capsules specially constructed for this study (two variants of each transmission scheme), in two scenarios. One mimicked the performance of a body-worn receiving coil, while the other allowed the characterization of the direction-dependent signal attenuation due to losses in the surrounding tissue. We found that the magnetically coupled near-field VHF telemetry scheme presents an attractive option for future, miniturized ingestible capsules for medical applications.

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Body Surface Backed Flexible Antennas for 17 GHz Wireless Body Area Networks Sensor Applications

Cheng

Öjefors

Hallbjörner³

et al. 2007

2007 European Conference on Wireless Technologies

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Antennas for a body area network

Abstract: The following article describes two different antennas, which were designed for operation at 868 MHz close to the human body. A patch antenna on ceramic substrate with a high dielectric constant and a planar inverted F-antenna

Cited by 8 publications

References 0 publications

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

In SituCharacterization of Two Wireless Transmission Schemes for Ingestible Capsules

Body Surface Backed Flexible Antennas for 17 GHz Wireless Body Area Networks Sensor Applications

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