基于单片机的RFID系统外文文献

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'基于单片机的RFID系统外文文献'
文献出处:Burke P, Rutherglen C. Towards a single-chip, implantable RFID system: is a single-cell radio possible?[J]. Biomedical microdevices, 2015, 12(4): 589-596?Towards a single-chip, implantable RFID system: is a single-cell radio possible?Peter Burke;Rutherglen CAbstractWe present an overview of progress towards single-chip RFID solutions. To date heterogeneous integration has been appropriate for non?biological systems. However, for in-vivo sensors and even drug delivery systems, a small form factor is required. We discuss fundamental limits on the size of the form factor, the effect of the antenna, and propose a unified single-chip RFID solution appropriate for a broad range of biomedical in-vivo device applications, both current and future. Fundamental issues regarding the possibility of single cell RF radios to interface with biological function are discussed.KeywordsSensor RFID1 IntroductionWhen James Clerk Maxwell discovered the displacement current, hence completing Maxwelfs equations, in 1865, the stage was set for the wireless transmission of information. It another 75 years for the semiconductor industry to be bom and mature into the field it is today. The modicum anytime anywhere access to information is now taken for granted. Today, every student in every science and engineering field is taught the fundamental basis of electromagnetics and wireless propagation of signals and information.The next 100 years will see a similar revolution in the integration of information technology and biotechnology, also called biomedical engineering. The field of telemedicine (e.g. scanned patient records, email or virtual office visits, etc.) has access to wireless technology and is beginning to deploy and utilize the vast, low cost information processing capacity. In this paper, we wish to address a more general issue, that of interfacing the physical world with the biological world?For interrogation of biological systems, one is generally interested in a chemical or physical quantity. For a chemical quantity, typical assays determine the presence or concentration of a protein, antibody, or small molecule anylate, the presence or concentration of a particular DNA or RNA,or even more subtle quantities such as the phosphorylation state of an enzyme.In general, these biomedically relevant physical quantities are sensed and turned into a measurable optical or electronic signal. Because of the broad availability of low cost high performance electronics, the development of electronic technologies will be more of concern to us here. The use of electronic interrogation of biological function can be integrated into a Si CMOS chip at potentially low cost. However, there is an important issue of how to interface the CMOS chip to the outside world, and this is where RFID comes in.The use of RFID for identification and sensing has been demonstrated in many applications. In general the acronym is used to refer only to identifying the pres
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