Abstract
We present a novel miniaturized dual-band implantable antenna for microwave backscattering at 2.4/4.8 GHz. These bands are recently emerging as highly promising for batteryless implants, viz., implants that receive power from an exterior interrogator at 2.4 GHz and backscatter their sensed signals at 4.8 GHz. Compared to the smallest reported 2.4/4.8 GHz implantable antenna, the proposed design is miniaturized by 39%, and exhibits higher gain by 10.3 dB (at 2.4 GHz) and 2.6 dB (at 4.8 GHz). To validate the antenna performance under anatomically correct conditions, postmortem human subject (PMHS) testing is performed. To the best of our knowledge, this is the first time that implantable antennas are tested in PMHS and further compared versus simulations in tissue-emulating models. Notably, good agreement exists between the two, with the proposed antenna exhibiting a reflection coefficient of <−4.5 dB at both 2.4 and 4.8 GHz for all six subcutaneous locations measured: left/right sides of thigh, hip, and abdomen.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
