Abstract
The purpose of this research paper is to propose a planar compact Yagi-Uda antenna for WLAN 2.4GHz band applications. This paper also discusses techniques to enhance the gain and directivity of the antenna by introducing an inverted mirror J structure on the ground plane and directors on the top plane. The proposed antenna is designed and fabricated on an FR-4 substrate of dimensions 55mm×48mm×1.6mm. This antenna operates in the WLAN 2.4GHz band with a center frequency of 2.45GHz having a peak gain of 4.34dBi, radiation efficiency as 87.56%, and a reflection coefficient of -26.81dB. In this paper, a conventional Yagi-Uda antenna is presented at first and then through the methodical optimization process, a modified design with enhanced gain and directivity characteristics is proposed. Lastly, the antenna is fabricated and then measured. The simulation results are validated after measurement.
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