Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):
L.W. Mayer, A.L. Scholtz:
"Efficiency Measurement Method for UHF Transponder Antennas";
Vortrag: First International EURASIP Workshop on RFID Technology,
Wien;
24.09.2007
- 25.09.2007; in: "The first international EURASIP Workshop on RFID Technology RFID2007",
(2007),
ISBN: 3-902477-10-5;
S. 17
- 20.
Kurzfassung englisch:
In this paper we address methods for characterizing small, low-gain antennas that are intended to be operated autonomously by a passive transponder chip. We present a way to perform accurate 3D gain measurements by means of a small, battery-powered, calibrated signal source and a two axis rotation apparatus. From the measurement results the directional pattern and the antenna efficiency are derived. We perform a test measurement of a half-wavelength dipole and find good
accordance of measured and theoretical data.
Schlagworte:
RFID antenna characterization measurement gain autonomous tag efficiency transponder directional pattern oscillator battery powered pointing rotation
Elektronische Version der Publikation:
http://publik.tuwien.ac.at/files/pub-et_12659.pdf