| Title | 
	Optimized Design of a Tag Antenna for RFID using a Meander Line  | 
					
	| DOI | 
	https://doi.org/10.5370/KIEE.2011.60.12.2293 | 
					
	| Keywords | 
	 RFID ; Tag antenna ; Meander line ; UHF | 
					
	| Abstract | 
	In this paper, A tag antenna structure for RFID application with resonant frequency of 920MHz is proposed using the meander line technique and Evolution Strategy. Miniaturization structure design for a tag antenna is performed by structure combining the half-wave dipole with a meander line. To achieve this, an interface program between a commercial EM analysis tool and the optimal design program is made for implementing the evolution strategy technique that seeks a global optimum of the objective function through the iterative design process consisting of variation and reproduction. The optimized tag antenna size is 63mm × 15mm × 1mm. And the proposed antenna is realized on FR-4 substrate ({ epsilon}_r=4.4, tnaδ=0.02).  |