Abstract
In the present paper, design and analysis of a 2.4 GHz printed dipole antenna for wireless communication applications are presented. Measurements on return loss and radiation pattern of this antenna configuration are included in this investigation. The printed dipole is combined with the feeding structure of a microstrip via-hole balun and is fabricated on an FR-4 printed-circuit-board substrate. Two inevitable discontinuities are introduced by this antenna architecture in the form of right-angle bends in the microstrip feed line and in the dipole’s gap, respectively. The impact of mitering these bends in the reflection coefficient, resonance bandwidth and radiation pattern of antenna has been investigated by means of simulation and experiment.
Highlights
The microstrip antenna architecture, in general, offers inherent narrow bandwidth and quite low gain
The return loss measurements are presented in four groups of printed dipole antennas
Each of them corresponds to four dipoles that have the same value of w parameter, and have different value of l parameter, ranging from 0 mm to 3 mm
Summary
The microstrip antenna architecture, in general, offers inherent narrow bandwidth and quite low gain These limitations do not provide wide usage of these antennas in wireless applications systems. The scientific community has started to investigate methods to improve this antenna architecture and provide better quality of services on wireless communication systems In this way, many research activities were based on the printed dipole antenna because it has low profile, simple structure and omnidirectional radiation pattern. We design and fabricate a 2.4-GHz printed dipole antenna with integrated microstrip balun This antenna design offers all the advantages of printed circuits and the corresponding geometry characteristics have been in detail studied and investigated [4,5].
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