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Author: search.filters.author.Anantrasirichai, NoppinSubject: search.filters.subject.Slot antenna

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    Rectangular slot antenna with Asymmetrical conductor strip for bandwidth enhancement coverage UWB standard
    (2014-01-01)
    Archevapanich, Tuanjai
    ;
    Rakluea, Paitoon
    ;
    Anantrasirichai, Noppin
    ;
    Purahong, Boonchana
    ;
    Chutchavong, Vanvisa
    This paper presents the bandwidth enhancement of rectangular slot antenna fed by microstrip line on the flexible Mylar Polyester film substrate. Asymmetrical conductor strip is designed and inserted in the rectangular slot to extend the bandwidth from 3.06 GHz to 7.2 GHz frequency range. Besides, the rectangular conductor at the end of the feeding microstrip line is introduced for increasing the bandwidth at high frequency up to 12.32 GHz. This improved antenna to cover standard frequency range of UWB (3.1 GHz – 10.6 GHz). Finally, as to reject the frequency band of IEEE 802.11a (5.15 GHz – 5.35 GHz), the line strip at the side of tuning stub is added. In this case, the band-notched frequency from 5.15GHz to 5.38 GHz can be easily obtained.
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    Inversed e-shape slot antenna for WLAN applications
    (2007-12-01)
    Archevapanich, Tuanjai
    ;
    Anantrasirichai, Noppin
    This paper present an inversed e-shape slot antenna for wireless LAN applications. The antenna is designed for dual frequency band 2.38 -2.5 GHz and 4.8-6.16 GHz of resonance frequency 2.44 GHz and 5.68 GHz, respectively, which can support WLAN applications coverage IEEE 802.11b/g (2.4 -2.4835 GHz), IEEE 802.11j (4.90-5.091 GHz), IEEE 802.11a (5.15-5.35 GHz), and Wimax of IEEE 802.16d (5.7-5.9 GHz). The bandwidth at low resonance frequency and high resonance frequency are 0.12 GHz and 1.36 GHz, respectively. The simulation results of inversed e-shape slot antenna are analyzed by using Method of Moment (MoM) from IE3D Software. © ICROS.
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    Tri-band rectangular spiral slot antenna with L-shaped slot antenna for WLAN and radar applications
    (2006-12-01)
    Wiriyacosol, Pavita
    ;
    Anantrasirichai, Noppin
    ;
    Thumwarin, Pitak
    ;
    Wakabayashi, Toshio
    Tri-band rectangular spiral slot (RSS) antenna with an L-shaped slot antenna insertion is introduced in this paper. The antenna was designed on the substrate with 2.2 of dielectric constant and 1.575 mm of thickness. FDTD method was adopted to evaluate the proposed antenna characteristics A rectangular spiral slot antenna was designed to support dual-frequency at 2.44 GHz and 8 GHZ. An L-shaped slot antenna was inserted to obtain more resonant frequency at 5.2 GHz. The simulation results revealed that the proposed antenna could be used to support tri-band of frequency which is compatible to IEEE 802.11a or HIPERLAN (5.2 GHz) standard, IEEE 802.11b/g (Wi-Fi 2.44 GHz) standard and 8.0 GHz satellite or radar communications. © 2006 ICASE.