• Title/Summary/Keyword: Notched WLAN band

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A Design of a Planar UWB Antenna with Notched WLAN band by Using Slot and Slit (슬롯과 슬릿을 사용하여 무선랜 대역이 제거된 평면형 UWB안테나 설계)

  • Lee, Chang-Joo;Kim, Su-Hoon;Park, Young-Bon;Lee, Mun-Soo
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.49 no.6
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    • pp.105-110
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    • 2012
  • In this paper, A planar UWB antenna with notched WLAN band, 802.11a band (5.15 ~ 5.825GHz), by using slot and slit is designed by using CST Microwave Studio. The notched bandwidth can be controlled by the length and width of the slot and slit in the patch and ground plane and it's radiation characteristics are examined through the experiments. The bandwidth based on the -10dB return loss level can be covered the full UWB band (3.1 ~ 10.6GHz) with a notched WLAN band (5.147 ~ 5.83GHz). Also, the experimental radiation pattern is almost omnidirectional in the H-plane.

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;Kim, Gi-Rae;Yun, Joong-Han
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.19 no.11
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    • pp.2518-2525
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    • 2015
  • 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.

Design of Antenna for UWB Application notched WLAN-Band (무선랜 대역 저지특성을 갖는 UWB 안테나 설계)

  • Kim, Kab-Ki
    • Journal of Advanced Navigation Technology
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    • v.13 no.5
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    • pp.714-719
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    • 2009
  • In this paper, a compact antenna with band-rejected characteristic for Ultra-Wideband(UWB) applications is proposed. The designed antenna not only shows sufficient impedance bandwidth but has band-rejected characteristic for the frequency band of 5.15~5.825GHz limited by IEEE 802.11a and HIPERLAN/2. To obtain both properties of wideband band rejection, the techniques of a partial ground plane and embedded thin U-slot into planar radiator are used respectively. A designed antenna satisfied a VSWR less than 2:1 for the frequency band of 3.1~10.3GHz with band rejection of 4.90~5.92GHz.

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