Validation of radio frequency telemetry concept in the presence of biological tissue-like stratified media

We discuss a novel radio frequency (RF) telemetry concept for biomedical applications. The concept consists of a miniaturized spiral inductor/antenna for bio-MEMS sensors and an external pick-up antenna integrated into a hand-held device. The measured relative signal strength in the presence of biological phantoms ranged from -5.9 to -7.5 dB for antenna separations of 5 and 10 cm. These relative signal strengths are easily measurable, therefore validating the RF telemetry concept for biomedical applications.