Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 11, Issue -, Pages 1679-1682Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2013.2238502
Keywords
Capsule; conformal antenna; helical; link budget; medical; specific absorption rate (SAR); wireless communication; wireless telemetry
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This letter presents a comprehensive and systematic antenna performance evaluation and wireless medical telemetry characterization between two different ingestible antenna designs, an inverted conical helical antenna and a reference conformal meandered offset dipole antenna. The antenna performance comparison matrix includes matching, radiation patterns, and polarization. Both these antennas are independently characterized inside a human body environment (box-model human). Specific absorption rate (SAR) evaluations are described, and finally a link budget is developed for both the antenna systems based on certain parameters (frequency, power limitations) with the goal of establishing a reliable communication link for indoor communication for biotelemetry applications.
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