Abstract
In this paper, A tag antenna structure for RFID application with resonant frequency of 920㎒ 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 63㎜ x 15㎜ x 1㎜. And the proposed antenna is realized on FR-4 substrate (ε<SUB>r</SUB>=4.4, tna δ=0.02).
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