Details

Autor(en) / Beteiligte

• Kaleja, M.M.
• Herb, A.J.
• Rasshofer, R.H.
• Friedsam, G.
• Biebl, E.M.

Titel

Imaging RFID system at 24 GHz for object localization

Ist Teil von

• 1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282), 1999, Vol.4, p.1497-1500 vol.4

Ort / Verlag

IEEE

Erscheinungsjahr

1999

Quelle

IEEE Xplore

Beschreibungen/Notizen

• A new RFID system for the ISM band at 24 GHz employing quasi-optical beam forming is presented. Active integrated antennas are used as transmitters resulting in exceptionally small size of the ID-tags. Identification codes are transmitted via a spread-spectrum modulated subcarrier that allows for very simple free running microwave oscillators as well as simple but highly selective receiver concepts. A dielectric lens and a 5/spl times/5 rectenna array comprise an imaging receiver that not only identifies but also localizes the tags with an angular resolution better than 3/spl deg/ at a distance up to 14 meters.