Readout scheme for resistive chipless wireless sensors

Author

Schusler, Martin ; Kubina, Bernd ; Mandel, Christian ; Jakoby, Rolf

Author_Institution

Inst. for Microwave Eng. & Photonics, Tech. Univ. Darmstadt, Darmstadt, Germany

fYear

2013

fDate

3-6 Nov. 2013

Firstpage

1

Lastpage

4

Abstract

A readout scheme for resistive chipless wireless sensors is derived from a systematic analysis of the signal flow in a generic reader-tag-system. The mathematical model is based on assumptions of tag, reader and channel properties. It is shown, that with a tailored tag antenna design the maximal operation range can be significantly extended since only two of three calibration measurements are necessary and the measurement with the weakest response in signal level can be omitted. With this approach at least a 30% increase in operation range can be expected. Experiment with sensor tags based on patch and PIFA antennas, loaded with temperature dependent resistive sensors, prove the concept.

Keywords

identification technology; microstrip antennas; readout electronics; wireless sensor networks; PIFA antennas; generic reader-tag-system; mathematical model; patch antennas; readout scheme; resistive chipless wireless sensors; signal flow; temperature dependent resistive sensors; Antenna measurements; Calibration; Impedance; Loaded antennas; Reflection; Sensors; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

SENSORS, 2013 IEEE

Conference_Location

Baltimore, MD

ISSN

1930-0395

Type

conf

DOI

10.1109/ICSENS.2013.6688147

Filename

6688147