Title :
An un-intrusive optically modulated scatterer technique for unwired small antenna measurement
Author :
Lao, R.R. ; Huang, M.J. ; Shay, W.T. ; Tarng, J.H.
Author_Institution :
Center for Meas. Stand., Ind. Technol. Res. Inst., Hsinchu
Abstract :
In this paper we present an un-intrusive OMS (optically modulated scatterer) technique to measure the radiation pattern of an un-wired small antenna such as an RFID tag. The radiation performance of an RFID antenna is measured without any metallic feeding wire that could disturb the field pattern. The degradation of the field pattern caused by a slab attached to the RFID antenna is also evaluated with this technique.
Keywords :
antenna radiation patterns; radiofrequency identification; RFID antenna; RFID tag; metallic feeding wire; radiation pattern; unintrusive optical modulated scatterer technique; unwired small antenna measurement; Antenna feeds; Antenna measurements; Antenna radiation patterns; Degradation; Optical modulation; Optical scattering; RFID tags; Radiofrequency identification; Slabs; Wire;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
DOI :
10.1109/CPEM.2008.4574834
