GDL

Journal from gdlhub / 2019-11-18 11:26:39
Oleh : Agus Dwi Prasetyo, Edwar Edwar, JNTETI
Dibuat : 2019-11-18, dengan 1 file

Keyword : antena, planar, UWB, coplanar waveguide, tapered-CPW, spline-curved ground plane
Url : http://ejnteti.jteti.ugm.ac.id/index.php/JNTETI/article/view/521
Sumber pengambilan dokumen : WEB

The use of radio spectrum in L-to-X bands is currently very diverse, with various types of devices. Therefore, an antenna with good response on very wide spectrum is expected to be a solution for diverse devices. By widening the antenna bandwidth that is applied to the ultra-wideband (UWB) communication, it is expected to be able to meet wireless communication needs on other bands or frequencies. The UWB antenna has the fractional bandwidth of at least 20% of its center frequency. This paper proposes an attempt to widen the bandwidth of planar UWB antenna with a circular patch (resonator) using coplanar waveguide (CPW). The study was conducted by the phased modification scenario using tapered line and spline-curved ground plane method. This method achieved a UWB antenna with fractional bandwidth of 145.57% (with a testing limit up to 12 GHz frequency) in the size of 40×50 mm2. At the testing bandwidth (L-X band), the basic form antenna (Model A) has a total bandwidth achievement of 39.36% (tripleband); the first antenna modification using tapered line at the feed line (Model B) has total bandwidth achievement of 83.09% (dual-band); and the last antenna modification using the tapered line (from the first modification) with the spline-curved ground plane addition (Model C) has total bandwidth achievement of 91.91% (single-band).

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