미앤더 라인을 이용한 RFID 태그 안테나 최적 설계

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 (e r =4.4, tna δ=0.02).