Analysis and Synthesis of RFID Equivalent Circuits through Backscatter and ARS

RFID tags are assumed to function when being read and not to function when the reader does not see the tag. In actuality, the antenna/front end combination is an analog circuit that represents the result of both design and manufacturing. This circuit is a determinant in the minimum power to operate the manufactured tag. Other wireless devices such as passive sensor platforms require similar designs. This paper presents a method of analysis and considerations for design of passive devices that share similar front end structures with a focus on passive RFID tags.