Design of A Microstrip Linear Tapered Slot Antenna

마이크로스트립 선형 테이퍼형 슬롯 안테나 설계

  • Jang, Jae-Sam (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Kim, Cheol-Bok (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Lee, Ho-Sang (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Jung, Young-Ho (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Jo, Dong-Ki (Gyeongsang National University, Dept. Electronic Engineering) ;
  • Lee, Mun-Soo (Engineering Research Institute, Gyeongsang National University)
  • 장재삼 (경상대학교 전자공학과) ;
  • 김철복 (경상대학교 전자공학과) ;
  • 이호상 (경상대학교 전자공학과) ;
  • 정영호 (경상대학교 전자공학과) ;
  • 조동기 (경상대학교 전자공학과) ;
  • 이문수 (경상대학교 공학연구원)
  • Published : 2008.05.25

Abstract

In this paper, a microstrip linear tapered slot antenna is designed. A tapered slot antenna(TSA) has many advantages such as low profile, low weight, easy fabrication, and compatibility with monolithic microwave integrated circuits(MMIC). In addition, it has demonstrated multi octave bandwidth, moderately high gain, and symmetrical E- and H-plane beam patterns. A feed network is implemented with transition between a microstrip and a slot line for the microstrip linear tapered slot antenna. The transition is consist of two sides. One side has a microstrip line, the other side has a slot line. The dimensions of the microstrip and slot line are ${\lambda}_m/4$ and ${\lambda}_s/4$ at the center of the cross section of the microstrip and slot line. In order to get broad bandwidth antenna characteristics, the tapered length is chosen as $4{\lambda}_o$ and termination width is chosen as $1.75{\lambda}_o$. Experimental results show that the microstrip tapered slot antenna has symmetrical E- and H-plane beam patterns with around 5GHz of bandwidth at center frequency of 5.0GHz.

Keywords

References

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