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

Scanlon, W G; Evans, N E; McCreesh, Z M · IEEE Trans Biomed Eng · 1997

basic_science · Level V

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Abstract

The electrical and communication performance of a 0.8-microW UHF temperature telemeter designed for human vaginal placement is discussed; a solenoidal loop antenna was used, occupying a volume of 0.1 cm3. In situ, measured power absorption was between 19-25 dB, resulting in an effective operating range of 10 m. Capacitive loading lowered the antenna's resonant frequency by 1.4% and there was a significant polarization change in the radiated output.

Medical subject headings