A design and manufacture of CPW-Fed UWB antenna with notched WLAN band by using a U shaped slot

U자형 슬롯을 사용하여 WLAN 대역이 제거된 CPW 급전 방식을 갖는 UWB 안테나 설계 및 제작

  • Ha, Yun-Sang (Department of Electronic Engineering, Silla University) ;
  • Kim, Gi-Rae (Department of Electronic Engineering, Silla University) ;
  • Yun, Joong-Han (Department of Electronic Engineering, Silla University)
  • Received : 2015.07.29
  • Accepted : 2015.09.10
  • Published : 2015.11.30


In this paper, we propose a UWB(Ultra Wide Band) antenna with CPW(Coplanar Waveguide) structure notched the 802.11a(5.15 ~ 5.825 GHz) band by using the U shaped slot. The proposed antenna not only shows Ultra-Wideband characteristic(3.1 ~ 10.6 GHz) suitable for UWB communications but has partially notched-band characteristic to reject 5 GHz WLAN band(5.15 ~ 5.825 GHz). The antenna is designed on an FR-4 substrate of which the dielectric constant is 4.4, and its overall size is $30mm(W){\times}20mm(L){\times}1mm(t)$. Fabricated antenna satisfied $VSWR{\leq}2$ in 3.1 ~ 10.6 GHz except for the band rejection of 5.15 ~ 5.825 GHz. And measured results of gain and radiation patterns characteristics displayed determined for operating bands.


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