Title :
RFID tag antenna matching to frequency dependent microchip impedance
Author :
Loo, Chye-Hwa ; ElMahgoub, Khaled ; Yang, Fan ; Elsherbeni, Atef ; Kajfez, Darko ; Kishk, Ahmed ; Elsherbeni, Tamer ; Ukkonen, Leena ; Sydänheimo, Lauri ; Kivikoski, Markku ; Merilampi, Sari ; Ruuskanen, Pekka
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, Oxford, MS
Abstract :
The paper demonstrates that the reflection coefficient calculated using the frequency dependent microchip impedance shows better agreement between the simulation and measurement than power reflection coefficients calculated from fixed frequency microchip impedances. Thus it is recommended to consider this procedure while designing tag antennas for better performance across the desired frequency band of operation.
Keywords :
UHF antennas; impedance matching; radiofrequency identification; RFID tag antenna matching; UHF RFID tag system; fixed frequency microchip impedances; frequency dependent microchip impedance; impedance matching; reflection coefficient calculation; Antenna measurements; Dipole antennas; Frequency dependence; Impedance matching; Ink; RFID tags; Radiofrequency identification; Reflection; Reflector antennas; Silver;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619582
