Title :
RFID tag antenna design and its EM simulation based measurement method
Author :
Zhang, Ning ; Li, Xiuping
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
A UHF band inductively coupled loop feeding RFID tag antenna and its EM simulation based measurement method are proposed in this paper. A de-embedding method based on EM simulation is proposed for accurate RFID tag antenna measurement using coaxial line and SMA connector. The key dimensions of antenna and their effects on antenna´s performance are studied. The measured result shows the antenna presents 100 MHz (880~ 980 MHz) bandwidth under the condition of voltage standing wave ratio less than 2(VSWR<;2) , and it agrees well with the simulated result. The proposed antenna presents 2dBi gain at the working frequency with dimension of 90mm × 16mm.
Keywords :
UHF antennas; antenna feeds; coaxial cables; electrical engineering computing; radiofrequency identification; telecommunication computing; EM simulation-based measurement method; RFID tag antenna design; SMA connector; UHF band inductively-coupled loop; antenna feeds; bandwidth 100 MHz; coaxial line; deembedding method; frequency 880 MHz to 980 MHz; Antenna measurements; Calibration; Connectors; Dipole antennas; Frequency measurement;
Conference_Titel :
Communication Technology (ICCT), 2010 12th IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6868-3
DOI :
10.1109/ICCT.2010.5688952
