Title :
Operability of Folded Microstrip Patch-Type Tag Antenna in the UHF RFID Bands Within 865-928 MHz
Author :
Ukkonen, Leena ; Schaffrath, Marijke ; Engels, Daniel W. ; Sydanheimo, Lauri ; Kivikoski, Markku
Author_Institution :
Inst. of Electron., Tampere Univ. of Technol., Rauma
Abstract :
The emerging use of passive radio frequency identification (RFID) systems at ultra-high-frequency (UHF) spectrum requires application specific tag antenna designs for challenging applications. Many objects containing conductive material need novel tag antenna designs for reliable identification. The operability of folded microstrip patch-type tag antenna for objects containing conductive material is analyzed and tested within the UHF RFID bands used at the moment mainly in Europe and in North and South America. First the operability of the tag antenna design and the effects of conductive material are modeled with simulations based on finite element method (FEM). The performance of the tag antenna design affixed to a package containing metallic foil is verified with read range measurements. The results show that the antenna design is operable in both of the UHF RFID bands within 865-928 MHz
Keywords :
UHF antennas; finite element analysis; microstrip antennas; radiofrequency identification; 865 to 928 MHz; UHF RFID band; application specific tag antenna designs; conductive material; finite element method; folded microstrip patch-type tag antenna; metallic foil; passive radio frequency identification systems; ultra-high-frequency spectrum; Conducting materials; Europe; Finite element methods; Materials reliability; Materials testing; Microstrip antennas; Packaging; Radiofrequency identification; South America; UHF antennas; Conductive materials; radio frequency identification (RFID); tag antenna design;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.883085
