Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Analysis of IR-UWB Tapered Slot Antenna Radiation Pattern using the Group delay and Fidelity

군 지연 및 충실도를 이용한 IR-UWB용 테이퍼 슬롯 안테나 방사패턴 분석

  • Kim, Keun-Yong (Department of Electronic Engineering, Kwangwoon University) ;
  • Ko, Yong-Mok (Department of Electronic Engineering, Kwangwoon University) ;
  • Park, Kyoung-Jin (Department of Electronic Engineering, Kwangwoon University) ;
  • Kang, Een-Kyun (Department of Electronic Engineering, Yuhan collage) ;
  • Lee, Dae-Woo (Department of Electronic Engineering, Kwangwoon University) ;
  • Park, Jong-Hyun (Department of Electronic Engineering, Kwangwoon University) ;
  • Ra, Keuk-Whan (Department of Electronic Engineering, Kwangwoon University)
  • Received : 2013.06.15
  • Published : 2013.08.15
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Abstract

In this paper, Tapered slot antenna of IR-UWB was Designed and fabricated using HFSS and we suggest the beam width of the broadband antenna using group-delay and fidelity. For this purpose, acquired data from the Network Analyzer was analyzed in the time domain by using the chirp-Z transform and Simulation was conducted and confirmed with the CST microwave studio. Analysis of the antenna radiation pattern is the antenna separation at intervals of 0.5 metres and then transmit antenna is fixed and the receiving antenna 360 degree intervals of 10 degree each, The results of the analysis are as follows, and analyzer of the fidelity of the antenna's performance. An analysis of more than 90 percent of the cases is less than ${\pm}40$ degrees in good fidelity, more than 90% less than ${\pm}40$ degrees and lowe fidelity. In conclusion, Analysis of Beam width of wideband antenna with more precise is possible through using these radiation pattern using fidelity.

본 논문에서는 IR-UWB를 위한 테이퍼 슬롯 안테나를 Ansoft인 HFFS을 사용하여 설계 및 제작 하였고 안테나의 군 지연 및 충실도를 사용하여 광대역 안테나의 빔 폭에 대해 연구를 제안하였다. 이를 위해 Network Analyzer에서 획득한 데이터를 Chirp Z-transform을 사용하여 시간영역에서의 분석을 하였고 시뮬레이션은 CST microwave studio를 이용하여 이를 확인 하였다. 안테나의 방사패턴의 분석은 두 안테나를 0.5 미터 간격으로 이격시킨 후 송신 안테나를 고정 후 수신 안테나를 $10^{\circ}$ 간격으로 $360^{\circ}$ 회전하여 각각의 충실도를 획득하여 안테나의 성능 분석하였다. 분석한 결과 ${\pm}40^{\circ}$ 미만일 경우 90%이상의 양호한 충실도를 얻었고 ${\pm}40^{\circ}$ 이상은 90%이하의 낮은 결과를 얻었다. 이러한 충실도를 이용한 방사패턴을 사용함으로 광대역 안테나의 빔 폭을 보다 정확한 분석을 할 수 있다.

Keywords

References

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