Frequency Selective Surface Coded Retroreflectors for Chipless Indoor Localization Tag Landmarks

This letter presents the integration of frequency selective surfaces (FSSs) with retroreflectors for the realization of chipless wireless indoor localization tag landmarks. As an example, the high radar cross section (RCS) of a trihedral corner reflector is signed with an FSS-based stopband filter,...

Full description

Saved in:
Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2020-05, Vol.19 (5), p.726-730
Main Authors: Jimenez-Saez, Alejandro, Schusler, Martin, El-Absi, Mohammed, Abbas, Ali Alhaj, Solbach, Klaus, Kaiser, Thomas, Jakoby, Rolf
Format: Article
Language:English
Subjects:
Antenna measurements
Backscattering
chipless radio-frequency identification (RFID)
Frequency measurement
Frequency response
Frequency selective surfaces
Horn antennas
indoor localization
Landmarks
Localization
Network analysers
radar cross section (RCS)
Radar cross sections
Reflectors
Resonant frequency
Retroreflectors
Signal to noise ratio
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This letter presents the integration of frequency selective surfaces (FSSs) with retroreflectors for the realization of chipless wireless indoor localization tag landmarks. As an example, the high radar cross section (RCS) of a trihedral corner reflector is signed with an FSS-based stopband filter, so that the backscattered power from several corner reflectors can be distinguished by a mobile reader according to the frequency response of the FSS. Measurement results with a 3 × 3 × 3 cm 3 trihedral corner reflector and a stopband FSS in a Rogers RT/Duroid 5880 high-frequency laminate at 90 GHz shows an RCS above -25 dBsqm for 90° coverage in the TM plane. Due to the high RCS, measurements at distances up to 4 m with a standard 25 dBi gain horn antenna and a vector network analyzer as a reader are shown. These preliminary results show the potential of the concept for applications such as indoor localization with sub-mm accuracy, where high bandwidths, but only a low number of bits, are needed for the identification of the tag landmarks.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2020.2975143