RF performance of a 418-MHz radio telemeter packaged for human vaginal placement

Scanlon, William; Evans, N.E.; McCreesh, Z.

doi:10.1109/10.568919

Cited by 55 publications

(16 citation statements)

References 6 publications

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“…Numerical and experimental investigations of radio Manuscript wave propagation from tissue-implanted ultrahigh-frequency devices are presented in [7], [8]. Scanlon et al [7] described the body-worn efficiencies of a vaginally implanted 418 and 916.5 MHz sources.…”

Section: Introductionmentioning

confidence: 98%

Modeling and Characterization of Biotelemetric Radio Channel From Ingested Implants Considering Organ Contents

Alomainy

Hao

2009

IEEE Trans. Antennas Propagat.

106

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The paper introduces numerical and experimental investigations of biotelemetry radio channels and wave attenuation in human subjects with ingested wireless implants. The study covers commonly used frequencies in telemedicine applications: ultrahigh frequencies at 402 MHz, 868 MHz and the industrial, scientific and medical (ISM) band frequency at 2.4 GHz. Numerical electromagnetic analysis is applied to model in/on-body radio propagation channels and the resulted parameters demonstrated the importance of digital phantom accuracy in ccharacterization of wave absorption and attenuation with regards to organ contents, specifically for the digestion system. Path gain variations of biotelemetry radio channels, in the close vicinity of the subject, with wireless implants were measured using a near field scanner. Simulation results were verified with measurement in good agreement.Index Terms-Biotelemetry radio channel, electromagnetic time-domain numerical technique, ingested medical implants, wave propagation.

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Section: Introductionmentioning

confidence: 98%

Modeling and Characterization of Biotelemetric Radio Channel From Ingested Implants Considering Organ Contents

Alomainy

Hao

2009

IEEE Trans. Antennas Propagat.

106

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“…Wireless communication with implanted medical devices has seen increasing use of ultra-high frequency (UHF) radio, which, while still an area of considerable research interest, has been investigated since the 1990s [4], [5] and has recently matured with considerable commercial exploitation. However, the majority of published research and commercial development has concentrated on point-to-point links from the implant to an external device close to, or a short distance from, the users body.…”

Section: Introductionmentioning

confidence: 99%

Modulated scatterer technique probe for intra-body RF channel measurements

Yordanov

Bentum

2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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For sensing human body parameters, several sensors (implantable or digestible) can be located inside the body. Since intra-body locations are not physically accessible (or at least difficult and with some risks), wireless communication with the sensing nodes is required. This intra-body wireless communication is a very challenging area, mainly because of the unknown and very attenuated channel and its variation with different human subjects. The topic of this paper is enabling intra-body channel measurements for accurate channel modeling in order to allow for precise intra-body localization and efficient data transmission. We propose to measure the channel by using the modulated scatterer technique (MST). MST has several advantages over conventional techniques, in which a probe in receiver mode is employed, like low field perturbation, minimization, simplified design, minimized size due to simpler circuitry operation and lower power consumption allowing for self-powering. The topic of this paper is the design and measurement of a MST probe for intra-body applications. Measurements are presented using the proposed device over several frequencies of operation in order to evaluate the probe's performance. After initial testing in air and further testing in several tissue environments the probe's performance has been evaluated. The measurement results are matching the theory. Functionality is as predicted and efficient measurements are possible in the MICS and ISM operation bands.

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“…Millions of people worldwide depend upon implantablemedical devices to support and improve the quality of theirlives. RF-linked implantable medical devices are already inuse for a wide variety of applications, including temperaturemonitors [4], pacemakers and cardioverter defi brillators [5],functional electrical stimulators (FES) [6], blood-glucose sensors [7], and cochlear [8] and retinal [9] implants. As technologycontinues to evolve, new implantable medical devices arebeing developed, and their use is expected to rapidly increasefrom an already large base.…”

Section: Introductionmentioning

confidence: 99%

Microstrip Antenna for Biomedical Application Based on Yagi Uda Technique

2017

IJAERD

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RF performance of a 418-MHz radio telemeter packaged for human vaginal placement

Cited by 55 publications

References 6 publications

Modeling and Characterization of Biotelemetric Radio Channel From Ingested Implants Considering Organ Contents

Modeling and Characterization of Biotelemetric Radio Channel From Ingested Implants Considering Organ Contents

Modulated scatterer technique probe for intra-body RF channel measurements

Microstrip Antenna for Biomedical Application Based on Yagi Uda Technique

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