Antenna-body interaction effects in a 418 MHz radio telemeter for infant use

William G. Scanlon; Noel E. Evans; Mark Rollins

Antenna-body interaction effects in a 418 MHz radio telemeter for infant use

William G. Scanlon
, Noel E. Evans
, Mark Rollins

Ulster University

Research output: Contribution to journal › Article › peer-review

Abstract

The RF loading effects on a chest-worn heart-rate telemetry transmitter were measured; a 6 cm² printed loop in a 418 MHz tank circuit was used as the radiator. 1-16 year-old children were used as test subjects. An individual power absorption of 3.4 dB was found, based on the numerical integration of polar patterns. Body capacitance caused tank detuning of between 0.1 and 5.2 MHz, depending on the physical orientation of the loop.

Original language	English
Pages (from-to)	278-279
Number of pages	2
Journal	Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Issue number	1
Publication status	Published - 1996
Externally published	Yes
Event	Proceedings of the 1996 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 2 (of 5) - Amsterdam, Neth Duration: 31 Oct 1996 → 3 Nov 1996

Cite this

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abstract = "The RF loading effects on a chest-worn heart-rate telemetry transmitter were measured; a 6 cm2 printed loop in a 418 MHz tank circuit was used as the radiator. 1-16 year-old children were used as test subjects. An individual power absorption of 3.4 dB was found, based on the numerical integration of polar patterns. Body capacitance caused tank detuning of between 0.1 and 5.2 MHz, depending on the physical orientation of the loop.",

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N2 - The RF loading effects on a chest-worn heart-rate telemetry transmitter were measured; a 6 cm2 printed loop in a 418 MHz tank circuit was used as the radiator. 1-16 year-old children were used as test subjects. An individual power absorption of 3.4 dB was found, based on the numerical integration of polar patterns. Body capacitance caused tank detuning of between 0.1 and 5.2 MHz, depending on the physical orientation of the loop.

AB - The RF loading effects on a chest-worn heart-rate telemetry transmitter were measured; a 6 cm2 printed loop in a 418 MHz tank circuit was used as the radiator. 1-16 year-old children were used as test subjects. An individual power absorption of 3.4 dB was found, based on the numerical integration of polar patterns. Body capacitance caused tank detuning of between 0.1 and 5.2 MHz, depending on the physical orientation of the loop.

UR - https://www.scopus.com/pages/publications/0030312142

M3 - Article

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JO - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

JF - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

IS - 1

T2 - Proceedings of the 1996 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 2 (of 5)

Y2 - 31 October 1996 through 3 November 1996

ER -

Antenna-body interaction effects in a 418 MHz radio telemeter for infant use

Abstract

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