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Planar Dipole Antenna Design at 1800MHz Band Using Different Feeding Methods for GSM Application

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Document pages: 5 pages

Abstract: This research work focuses on the design and simulation of a planar dipole antenna for 1800MHZ Band for Global System Mobile GSM application using Computer Software Technology CST studio software. The antenna is structured on a fire resistance FR4 substrate with a relative constant of 4.3 S m. Two types of feeding configuration are designed to feed the antenna in order to match 50 Ω transmission lines which are via-hole integrated balun and quarter wavelength open stub. The via-hole is capable to provide maximum return loss of -25dB, bandwidth of 18.4 and the voltage standing wave ratio (VSWR) of 1.116 V at optimum dimension of length 59mm and width 4mm; the bandwidth is improved 25 to 30 by extending the width of the antenna 8 mm to 10 mm followed by deterioration of return loss value to - 15dB. While the open stub at length of 67 mm, the width of 6 mm and height 1.6mm will provide max return loss of -47.88dB and bandwidth of 17 with VSWR 1.008

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