Title :
Evolutional design of small antennas for passive UHF-band RFID
Author :
Makimura, Hidetoshi ; Watanabe, Yuta ; Watanabe, Kota ; Igarashi, Hajime
Author_Institution :
Grad. Sch. of Inf. Sci. & Technol., Hokkaido Univ., Sapporo, Japan
Abstract :
This paper presents optimal design of antennas for passive IC tags used in UHF-band radio frequency identification. To improve the performance of IC tags, the shape of the meander line antennas and planar lattice antennas are optimized using the genetic algorithm. In the optimization process, the objective function includes the terms relevant to the antenna size, gain and input impedance. The characteristics of the antennas printed on a dielectric substrate are evaluated using the moment method. The optimization results in desirable input impedance for impedance matching and miniaturizing.
Keywords :
UHF antennas; genetic algorithms; impedance matching; method of moments; planar antennas; radiofrequency identification; UHF-band radio frequency identification; antenna gain; antenna shape; antenna size; dielectric substrate; evolutional design; genetic algorithm; impedance matching; impedance miniaturizing; input impedance; meander line antenna; moment method; objective function; optimal design; optimization; passive IC tag; passive UHF-band RFID; planar lattice antenna; small antenna; Dielectric substrates; Dipole antennas; Genetic algorithms; Impedance matching; Lattices; Optimization methods; Passive RFID tags; Programmable logic arrays; Radiofrequency identification; Shape;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5481405
