Title :
Optimization of meander line antenna considering coupling between non-linear circuit and electromagnetic waves for UHF-band RFID
Author :
Watanabe, Yuta ; Watanabe, Kota ; Igarashi, Hajime
Author_Institution :
Graduate School of Information Science and Technology, Hokkaido University, Kita 14, Nishi 9, Kita-ku, Sapporo, 060-0814, Japan
Abstract :
This paper presents optimization of meander line antennas for passive IC tags which contain non-linear circuits. In the present analysis, the tag antenna loaded by the Cockcroft-Walton circuit is analyzed by solving a coupling problem between electromagnetic waves and non-linear circuit with FDTD method. The antenna shape is optimized so that the output voltage of the Cockcroft-Walton circuit is maximized using the micro genetic algorithm. It is shown that the output voltage can effectively be increased by the present optimization.
Keywords :
Circuit analysis; Coupling circuits; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic scattering; Finite difference methods; Loaded antennas; Radiofrequency identification; Shape; Voltage;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL, USA
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5482984
