Novel design of ultra wideband vertical slotted triangular (VST) sheet antenna

Abstract

In this paper, a new design of Ultra Wide Band (UWB) antenna is proposed. The antenna parameters in frequency domain analysis have been investigated to show its capability as an effective radiating element. The voltage standing wave ratio is less than 2 (VSWR< 2) and return loss ( ) is less than -10 dB along the operation bandwidth of 4 GHz to 17 GHz. The simulated return loss, VSWR,input impedance and radiation pattern are presented in this paper. The antenna is very useful for impulse and UWB communication systems (in radar communication, for military application (defense department), bio-medical technology, space communication through satellite) and as proposed antenna has end fire radiation pattern it is very useful in point to point communication with very high gain performance. Keywords-Ultra wideband (UWB), triangular sheet, Voltage standing wave ratio (VSWR), Return loss ( ).

A Parametric Study of Unexplored Design Parameters of Ultra WideBand VST Antenna

“…The Vertical Slotted Triangular (VST) sheet antenna consists of two triangular metal sheets connected to a SMA connector with their base. The width of triangular metal sheet is 85 mm along the X-direction as indicated in Fig.2 [4] and its length is fixed at 75.0 mm along the Z-direction. It has been studied that the performance of gain and return loss is affected by the feeding position, width of these slots and number of vertical slots, which are shown in Fig.…”

“…The structure of the VST antenna is shown in Fig.1 [4]. The Vertical Slotted Triangular (VST) sheet antenna consists of two triangular metal sheets connected to a SMA connector with their base.…”

“…2. The feeding position to the triangular sheets is a very critical parameter to acquire UWB characteristic and higher gain performance [4][5][6]. The gap between positive and negative plates has been taken as 3.0 mm.…”

“…Depth of the triangular metal plate has been taken as 1 mm. Finally, the overall physical dimensions of the proposed antenna for optimized performance were given in [4], are shown in Table 1. …”

“…In past several designs of planar UWB (ultra wide band) antennas have been proposed [1, 2, and 3]. However, many of these antennas involve complex design and sophisticated fabrication process [4,5]. In the present paper, a simple method to have an UWB VST antenna with proper notch is proposed by parametric study.…”