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Title: Design and modeling of wireless link for biomedical implantable applications
Authors: DUAN ZHU
Keywords: wireless power transfer, implantable antenna, differential-feeding, dual-band, SAR, communication link
Issue Date: 2-Aug-2013
Source: DUAN ZHU (2013-08-02). Design and modeling of wireless link for biomedical implantable applications. ScholarBank@NUS Repository.
Abstract: Implantable microsystems have attracted attention from researchers all around the world, due to the fact that the miniaturization of electronics systems and reduction of power consumption of chips make the actual implantation of extremely complex microsystems possible. For these microsystems, the wireless communication link is essential to ensure robust communications between an implanted device and an external monitoring apparatus. For most cases, the communication link is composed of power link and data link. The power link consists of two closely spaced coils intended for wireless power transfer based on inductive coupling. The data link is realized by either coupling coils for near-field communications or a pair of antennas for far-field purposes. This work presents the optimization method of rectangular coils for maximum power transfer efficiency; proposes the first differentially fed dual-band implantable antenna for data transfer in neural recording system and evaluates the performance of a novel differential antenna in MICS and ISM bands for dual-mode operation. Also, the interference issues between the power link and data link are examined as well.
Appears in Collections:Ph.D Theses (Open)

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