5[1]Dallas Semiconductor. DS18S20 High Precision 1-Wire Digital Thermometer. 2002
6[2]Nordic VLSI ASA Inc.433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4Input, 10 bit ADC.2004
7Pobanz C.A Microwave Non - contact Identification Transponder Using Sub -harmonic Interrogation [J] .IEEE Transactions on Microwave Theory and Techniques, 1995, 43 (2): 1 673-1 679.
8Kaiser U.A Low Power Transponder IC for High Performance Identification Systems [J]. IFEE Journal of Solid State Circuits, 1995, 30 (3): 306-310.