Dual-resonant Π-shape with double L-strips PIFA for implantable biotelemetry

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Dual-resonant Π-shape with double L-strips PIFA for implantable biotelemetry

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© The Institution of Engineering and Technology
Published

A compact Π-shape with a double L-strips planar inverted-F antenna (PIFA) is proposed for implantable biotelemetry in the Medical Implant Communication Services band (MICS band). The antenna occupies a volume of only 643 mm3 (22.5×22.5×1.27 mm), operating frequency at 402 MHz. Utilising the Π-shape with the double L-strips PIFA structure can excite dual-resonate frequencies that control the dual-resonant frequency at 375 and 427 MHz to obtain the broad bandwidth of 80 MHz (362–442 MHz) at return loss of 10 dB. To demonstrate the performance of the implantable antenna more efficiently, the simulating skin fluids are also developed by varying alcohol concentration with salts. Thus, provided is a miniature, broadband implantable PIFA for biotelemetry with medical devices.

Inspec keywords: planar inverted-F antennas; biomedical telemetry; prosthetics; resonance

Other keywords: planar inverted-F antenna; double L-strips PIFA; Medical Implant Communication Services band; implantable biotelemetry; broad bandwidth; broadband implantable PIFA; dual-resonant frequency; medical devices

Subjects: Prosthetics and other practical applications; Prosthetics and orthotics; Biomedical communication; Single antennas; Telemetry

References

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      • Ansoft High Frequency Structure Simulator (HFSS), Ver. 10.1, Ansoft Corporation, 2006.
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      • K. Jaehoon , Y. Rahmat-Samii . Implanted antennas inside a human body: simulations, designs, and characterizations. IEEE Trans. Microw. Theory Tech. , 8 , 1934 - 1943
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