A Compact CPW-Fed Planar Pentagon Antenna for Uwb Applications

Abstract

Abstract-In this paper, the design and analysis of a compact coplanar waveguide-fed ultra wideband pentagon antenna are presented. To achieve ultra wideband performance, two modifications are introduced. The first one is to remove a small fan angle on each side of the ground plan, and the second one is to modify the sharp of the patch in the width. The optimal dimensions can be achieved by a parametric analysis. The antenna design exhibits a very wide operating bandwidth of 16.7 GHz with a return loss better than 10 dB in the frequency range from 4.46 GHz to 21.14 GHz. The gain of the proposed antenna is 6.3 dBi. This antenna configuration will be useful for UWB indoor application as it is easy to fabricate and integrate with RF circuitry. All simulations in this work were carried out by using the electromagnetic software CST.

Design of UWB antenna integrated with dual GSM functionalities and dual notches in the UWB region using single branched EBG inspired structure

“…The proposed UWB radiator is a quadrangular structure with one side curved whereas in general, UWB radiators either have straight line edges or fully curved structures like ellipse, semi-circle or other curved-edge structures [3][4][5][6][7][8][9][10][13][14][15][16][17][18][19][20][21]. The hybrid of straight line and curved edges are necessary for the proposed design in order to keep the impedance matching in the UWB region intact while protruding two metallic strips from the UWB radiator to obtain dual resonances at GSM frequencies.…”

“…This has led to the investigation of monopole patch antennas which can operate in the UWB region. The structures of such antennas include pentagonal [3], hexagonal [4], fractal [5] and other hybrid geometry [6].…”

Ultra-Wideband (Uwb) Differential-Fed Antenna With Improved Radiation Patterns

“…Although these types of antennas can be easily matched over the UWB band, there exists a common deficiency of deterioration of radiation pattern. The radiation patterns of these antennas deviate from the broadside direction in the high frequency band (above 9 GHz), which may cause the mistake for UWB applications that require stable radiation pattern [8,9]. To alleviate this problem, several techniques have been proposed to improve the radiation pattern of the UWB antenna.…”

A New CPW-fed Patch Antenna for UWB Applications

“…vehicular radar system (20-29 GHz), due to its advantages like low power consumption, low cost for short range communication and highly secure communication [2]. UWB antennas have wide application in wireless communication, medical equipment, remote sensing, etc.…”

“…UWB antennas have wide application in wireless communication, medical equipment, remote sensing, etc. A challenge while designing UWB antenna is to achieve compact size, good impedance over wide bandwidth and stable radiation pattern [2]. Multiband antenna is proposed for similar applications in [3].…”