Electromagnetic Energy and Data Transfer in Biological Tissues Using Loop Antennas

Rezaei, Navid; Majumdar, Deyasini; Cockburn, B.F.; Schlegel, Christian

doi:10.1016/j.procs.2013.06.124

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…• APT can be used to deliver power to the implanted devices, but the transducer needs to be placed in direct contact with the skin of the subject; due to the air-skin impedance mismatch, the efficiency of power delivery can be very small [57,58]; • OPT communication is limited to very short distances and is dependent on precise alignment of the transmitter and receiver. Therefore, an optical connection can only be used for applications where the transmitter and receiver can be kept close and stationary [59].…”

Section: Implantable Sensor Technology: Categoriesmentioning

confidence: 99%

Wireless implantable and biodegradable sensors for postsurgery monitoring: current status and future perspectives

Santis

Cacciotti

2020

Nanotechnology

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In in vivo postsurgery monitoring, the use of wireless biodegradable implantable sensors has gained and is gaining a lot of interest, particularly in cases of monitoring for a short period of time. The employment of biodegradable materials allows the circumvention of secondary surgery for device removal. Additionally, the use of wireless communication for data elaboration avoids the need for transcutaneous wires. As such, it is possible to prevent possible inflammation and infections associated with long-term implants which are not wireless. It is expected that microfabricated biodegradable sensors will have a strong impact in acute or transient biomedical applications. However, the design of such high-performing electronic systems, both fully biodegradable and wireless, is very complex, particularly at small scales. The associated technologies are still in their infancy and should be more deeply and extensively investigated in animal models and, successively, in humans, before being clinically implemented. In this context, the present review aims to provide a complete overview of wireless biodegradable implantable sensors, covering the vital signs to be monitored, the wireless technologies involved, and the biodegradable materials used for the production of the devices, as well as designed devices and their applications. In particular, both their advantages and drawbacks are highlighted, and the key challenges faced, mainly associated with fabrication techniques, and control over degradation kinetics and biocompatibility of the device, are reported and discussed.

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Section: Implantable Sensor Technology: Categoriesmentioning

confidence: 99%

Wireless implantable and biodegradable sensors for postsurgery monitoring: current status and future perspectives

Santis

Cacciotti

2020

Nanotechnology

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“…3.2, to achieve minimum reception quality, the required E c / N o has to be no less than 0 dB. With L b = 16 , we have:E b / N o = L b ⋅ E c / N o = 12 dB.The received SNR is given by[14] …”

mentioning

confidence: 99%

Electromagnetic Energy and Data Transfer for a Neural Implant

2013

(JUSPN)

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The wireless transfer of energy through living tissues for the purpose of data communications is investigated. After considering the best frequency band for communications in biological tissues, both the uplink and downlink near-field coupled energy transfer options are analyzed. The possibility of wireless powering using the same frequency band is also studied. The nominal power consumption of the implantable baseband communications circuitry was estimated for smaller technology nodes using the Synopsys CAD tools. The effect of using the ultra-low power subthreshold operation in different technology nodes was also analyzed using predictive technology models. By introducing an analysis flow and the corresponding implementation code, we were also able to predict the subthreshold power consumption of the circuitry in different technology nodes and importantly at the gate level.

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Electromagnetic Energy and Data Transfer in Biological Tissues Using Loop Antennas

Cited by 2 publications

References 11 publications

Wireless implantable and biodegradable sensors for postsurgery monitoring: current status and future perspectives

Wireless implantable and biodegradable sensors for postsurgery monitoring: current status and future perspectives

Electromagnetic Energy and Data Transfer for a Neural Implant

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