2-D localization and identification based on SAW ID-tags at 2.5 GHz

Author

Bechteler, Thomas F. ; Yenigün, Hüsnü

Author_Institution

Fac. of Eng. & Natural Sci., Sabanci Univ., Orhanli-Tuzla, Turkey

Volume

51

Issue

5

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

1584

Lastpage

1590

Abstract

An identification and localization system based on surface acoustic wave (SAW) radio sensors is presented in this paper. This system is able to identify and localize objects within a two-dimensional area. Identification is achieved with a fixed coded passive SAW identification-tag. Localization is carried out with three receiving antennas and with a following analysis of time delay between the sent interrogation signal and the received signals. For practical tests, a special interrogator has been established, as well as the receiving and demodulation unit. The whole system is controlled by a computer.

Keywords

computerised control; computerised instrumentation; identification technology; radio applications; receiving antennas; surface acoustic wave sensors; 2.5 GHz; 2D identification system; 2D localization system; SAW ID tags; SAW identification-tag; SAW radio sensors; computer controlled system; demodulation unit; fixed coded passive identification-tag; interrogation signal; received signals; receiving antennas; surface acoustic wave radio sensors; time delay analysis; Acoustic sensors; Acoustic waves; Control systems; Delay effects; Demodulation; Receiving antennas; Sensor systems; Signal analysis; Surface acoustic waves; Testing;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2003.810142

Filename

1196191