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Simultaneous rotation and distance measurement using multiband circularly polarized radio link

: Narbudowicz, A.; Ammann, M.J.; Heberling, D.

Institute of Electrical and Electronics Engineers -IEEE-:
International Symposium on Antennas and Propagation, ISAP 2016 : Oktober 24 - 28, 2016, Okinawa, Japan
Piscataway, NJ: IEEE, 2016
ISBN: 978-1-4673-7960-1 (Print)
ISBN: 978-4-88552-313-7 (Online)
International Symposium on Antennas and Propagation (ISAP) <2016, Okinawa/Japan>
Fraunhofer FHR ()

The paper proposes a method for simultaneous measurement of rotation and distance by using a multi-band circularly polarized radio links. The method is realized using a standard dual-band patch antenna, operating at 1.58 GHz and 2.27 GHz, with respective axial ratios of 1.7 dB and 1.0 dB. Both link distance and antenna rotation were varied from a reference position/orientation from -40 mm to +40 mm and from 0° to 360°, producing a total set of 125 samples. For a noiseless link the distance change and rotation were predicted with respective mean errors of 1.9 mm and 7.3°.