Miniaturized Half-Circular-Slot UWB Antenna Design

소형화된 반원형-슬롯 UWB 안테나의 설계

  • Jang, Joon-Won (College of Information Technology, Kangwon University) ;
  • Choi, Kyoung (College of Information Technology, Kangwon University) ;
  • Hwang, Hee-Yong (College of Information Technology, Kangwon University)
  • 장준원 (강원대학교 IT특성화 학부대학) ;
  • 최경 (강원대학교 IT특성화 학부대학) ;
  • 황희용 (강원대학교 IT특성화 학부대학)
  • Published : 2008.03.31


This paper proposes a miniaturized half-circular-slot UWB antenna. Using an analysis of the neld patterns, we show that the original circular-slot UWB antenna operates on a series of multi-pole radiation based on $TE_n$ modes, and a perfect magnetic wall exists along an axis of symmetry on the antenna. Using the perfect magnetic wall we designed and fabricated the miniaturized UWB antenna on RF-60A substrate with t=0.64mm, ${\varepsilon}_r=6.15\;and\;tan\;{\delta}=0.0025$, which not only has the half size of the original but also maintains UWB characteristics. The measured gain of the miniaturized antenna is $-2.1{\sim}4.3dBi$, which is comparable with the gain, $-2.7{\sim}3.1dBi$, of the original circular-slot UWB antenna. The radiation pattern is also similar to that of the original antenna.


UWB Antenna;Slot Antenna;Miniaturized Antenna


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