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Author: search.filters.author.Anantrasirichai, N.Subject: search.filters.subject.UWB antenna

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    Improvement microstrip patch antenna for ultra-wideband by C-shaped wide slot
    (2010-12-01)
    Satthamsakul, S.
    ;
    Puntheeranurak, S.
    ;
    Benjankaprasert, C.
    ;
    Anantrasirichai, N.
    ;
    Wakabayashi, T.
    The simple rectangular patch antenna is designed at frequency 7 GHz and matched impedance with 50 ohms of transmission line. The technique to achieved widest bandwidth from 3 GHz to 12 GHz coverage standard of UWB applications is proposed by etches out slot on the ground plane with inset technique. The configuration and the size of slot on the ground plane are important to enhanced bandwidth, and inset feed is used for good impedance matching in wide frequency range. The radiation patterns of each frequency show the bi-directional with null at angle ±90°. ©ICROS.
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    Compact CPW-Fed wide slot antenna for ultra-wideband applications
    (2009-01-01)
    Kueathaweekun, W.
    ;
    Purahong, B.
    ;
    Benjangkaprasert, C.
    ;
    Anantrasirichai, N.
    ;
    Wakabayashi, T.
    A compact ultra-wideband (UWB) CPW-fed slot antenna design is presented. The antenna consists of a wide rectangular slot on the ground plane with rectangular-ring shaped tuning stub. The simulation result of the impedance matching for the proposed antenna show the impedance bandwidth, determined by-10 dB return loss of 116 %, coverage 2.94 GHz to 11.06 GHz for UWB applications. The simulation radiation patterns and gain of the antenna at different operational frequencies are presented and discussed.
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    CPW-fed slot antenna with inset L-strip tuning stub for ultra-wideband
    (2008-12-01)
    Archevapanich, T.
    ;
    Jearapraditkul, P.
    ;
    Puntheeranurak, S.
    ;
    Anantrasirichai, N.
    ;
    Sangaroon, O.
    The coplanar waveguide fed slot antenna with inset L-stripe tuning stub is proposed for UWB applications. The antenna consists of two rectangular slots separated by center strip with CPW feed line. This antenna is design for match impedance with 50 ohm of characteristic impedance of transmission line by using inset L-stripe tuning stub for wideband matching. By adjusting dimension of inset L-strip tuning stub, the range of bandwidth can be achieved 144.6% (1.80 GHz -11.2 GHz) of the center band coverage standard of IEEE 802.15a for ultra wideband operation. The characteristics of antenna are proposed and analyzed for instance input impedance, return loss, bandwidth, VSWR, and far field radiation patterns. © 2008 SICE.