A Radio-Oriented Introduction to Radio Frequency Identification

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  • Author: Daniel M. Dobkin, Titus Wandinger
The once obscure acronym RFID (Radio Frequency IDentification, the use of electromagnetic waves to identify a physical object) has recently been in the news in many contexts. In this article, we’ll try to explain how that single acronym is used for a number of different, but related, technologies with distinct characteristics, and examine some of the unique analog and RF problems encountered in designing RFID systems.
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