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434 MHz ISM band antenna for in-body biotelemetry capsules

Abstract : We propose a versatile 434 MHz in-body capsule antenna suitable for ingestible and variety of implantable applications. The low profile conformal antenna is synthesized using a hybrid analytical–numerical approach and optimized for robust operation at 434 MHz inside a 17 mm long biocompatible encapsulation (7 mm diameter). The antenna remains matched below –10 dB in wide range of body tissues (from 42% of muscle electromagnetic properties up to the maximum tissue electromagnetic properties). A realized gain is –22.4 dBi and radiation efficiency reaches 0.4%. The radiation performance of the proposed antenna exceeds most of counterparts whereas its impedance characteristics are more robust.
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Contributor : Denys Nikolayev <>
Submitted on : Wednesday, July 12, 2017 - 12:46:45 PM
Last modification on : Friday, January 8, 2021 - 3:41:38 AM



Denys Nikolayev, Maxim Zhadobov, Karban Pavel, Ronan Sauleau. 434 MHz ISM band antenna for in-body biotelemetry capsules. 11th European Conference on Antennas and Propagation (EuCAP 2017), Mar 2017, Paris, France. ⟨10.23919/EuCAP.2017.7928838⟩. ⟨hal-01561091⟩



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