Title :
The Multitag Microwave RFID System
Author :
Shirokov, Igor B.
Author_Institution :
Dept. of Radio Eng., Sevastopol Nat. Tech. Univ., Sevastopol
fDate :
5/1/2009 12:00:00 AM
Abstract :
The problems of RF identification are discussed. It is shown that the use of passive transponders is preferable, but weak energy of the system in this case reduces the operation distance and decreases the noise immunity of the system. In this paper, it is proposed to use the homodyne method of selecting the useful signal. This solution allows to increase the energy and the noise immunity of the system (the operation distance is increased). Furthermore, the interrogator can treat several transponders simultaneously.
Keywords :
homodyne detection; microwave phase shifters; radiofrequency identification; transponders; RF identification; homodyne method; multitag microwave RFID system; passive transponders; Homodyne detection; microwave phase shifter; modulator; transponder;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2009.2017315
