Regenerative backscatter transponder using the switched injection-locked oscillator concept

Author

Vossiek, Martin ; Schafer, Tobias ; Becker, Dirk

Author_Institution

Clausthal University of Technology, Institute of Electrical Information Technology, Leibnizstr. 28, D-38678 Clausthal-Zellerfeld, Germany

fYear

2008

fDate

15-20 June 2008

Firstpage

571

Lastpage

574

Abstract

In this paper, a new backscatter transponder type is introduced. The developed transponder regenerates a modulated, phase-coherent high-power response/ replica to an interrogating CW radar signal. To create the amplified phase-coherent transponder response, the switched injection locked oscillator (SILO) concept is applied. Compared with a usual passive backscatter transponder - known e.g. from UHF RFID systems - the reading range of a SILO transponder is substantially increased. It is demonstrated that a reading range above 20 m is easily obtained even with a 5.8 GHz, 15 MBit/s system.

Keywords

UHF oscillators; injection locked oscillators; radiofrequency identification; transponders; UHF RFID systems; bit rate 15 Mbit/s; frequency 5.8 GHz; interrogating CW radar signal; phase-coherent transponder response; regenerative backscatter transponder; switched injection-locked oscillator concept; Backscatter; Bandwidth; Information technology; Injection-locked oscillators; Phase modulation; Radar antennas; Radiofrequency identification; Reflection; Signal processing; Transponders; Identification; oscillators; phase synchronization; radar; radio communication; transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4633230

Filename

4633230