Measurements of Balun and Gap Effects in a Dipole Antenna

Constantinos Votis, Vasilis Christofilakis, Panos Kostarakis

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DOI: 10.4236/ijcns.2010.35057                

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.

Keywords

Printed Dipole, Integrated Balun, S-Parameters, Radiation Pattern

Conflicts of Interest

The authors declare no conflicts of interest.

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