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Optimized Design of a Tag Antenna for RFID using a Meander Line

미앤더 라인을 이용한 RFID 태그 안테나 최적 설계

  • Received : 2011.10.16
  • Accepted : 2011.11.22
  • Published : 2011.12.01

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 ${\times}$ 15mm ${\times}$ 1mm. And the proposed antenna is realized on FR-4 substrate (${\epsilon}_r=4.4$, $tna{\delta}=0.02$).

Keywords

RFID;Tag antenna;Meander line;UHF

References

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Acknowledgement

Supported by : 한국연구재단