Wearable wireless telemetry system for implantable bio-MEMS sensors.
In this paper, a telemetry and contact-less powering system consisting of an implantable bio-MEMS sensor with a miniature printed square spiral chip antenna and an external wearable garment with printed loop antenna is investigated. The implantable chip antenna and the wearable garment pick-up antenna are in close proximity to each other and hence couple inductively through their near-fields and behave as the primary and the secondary circuits of a transformer, respectively. The numerical and experimental results are graphically presented, and include the design parameter values as a function of the geometry and the relative magnetic near-field intensity as a function of the angle, for the implantable chip antenna.
Simons
Rainee N
RN
NASA Glenn Res. Center, Cleveland, OH 44135, USA. Rainee.N.Simons@nasa.gov
Miranda
Félix A
FA
Wilson
Jeffrey D
JD
Simons
Renita E
RE
D001698:Biomedical Engineering / Q000295:instrumentation / Q000379:methods*; D003195:Computer Communication Networks; D004566:Electrodes; D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D008838:Microcomputers; D008904:Miniaturization; D018670:Monitoring, Ambulatory / Q000295:instrumentation* / Q000379:methods; D011846:Radio Waves; D013686:Telemetry / Q000295:instrumentation* / Q000379:methods; D014159:Transducers