A customizable RFID tag, as shown in Figure 3.1b, can
handle variations in standards and requirements as they are developed with a signi?¬?cantly
shorter time to market than current ?¬‚ows. Such a tag could be mass produced and tailored
to a particular RFID use after fabrication. With the use of automation to program the
device, the design time could be reduced to hours or days.
This chapter presents an extensible RFID tag system, as shown in Figure 3.2. The tag can
be easily customized to work with different existing or newly developed standards and
even concurrently with proprietary commands tailored to the desired application. The tag
Design RFID
specification
Synthesis, place,
and route Fabrication Final tag
Testing
Design rule
checking
Correct
simulation?
Physical
layer
library
Air
interface
library
Design RFID
specification RFID compiler
Extensible
RFID tag
(a)
Implement in
VHDL
(b)
FIGURE 3.1
Comparison of RFID tag design philosophies. (a) Current RFID tag design ?¬‚ow. All tag components integrated
manually. Estimated time: months or years. (b) Automated RFID tag design ?¬‚ow. Prepackaged extensible silicon
device. Estimated time: hours or days. (From Jones, A.K., Hoare, R., Dontharaju, S., Tung, S., Sprang, R., Fazekas,
J., Cain, J.T., and Mickle, M.H., J. Microprocess. Microsys., 31, 116, 2007. With permission.
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