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J Electromagn Eng Sci > Volume 17(1); 2017 > Article
Journal of Electromagnetic Engineering and Science 2017;17(1):14-19.
DOI: https://doi.org/10.5515/JKIEES.2017.17.1.14   
Planar Directional Beam Antenna Design for Beam Switching System Applications
Seok-Jae Lee1, Won-Sang Yoon2, Sang-Min Han1
1Department of Information and Communication Engineering, Soonchunhyang University
2Department of Electronic Engineering, Hoseo University
Correspondence:  Sang-Min Han,Email: auspice@ieee.org
In this paper, a planar directional beam-switchable antenna with four orthogonal beam directions is proposed. The proposed antenna is designed with two crossed active elements and two parasitic elements for each direction. The design methodology is described on the basis of the Yagi-Uda method for the active and parasitic elements, respectively. By adjusting the effective electric lengths of the parasitic elements, the roles of a director and a reflector are exchanged with each other. The planar four-way beam-switchable Yagi-Uda antenna is implemented. From the experimental results. The proposed design method is verified for orthogonal radiation beam switching.
Key words: Beam-Steering Antennas, ESPAR, Planar Dipoles, Reconfigurable Antennas, Yagi-Uda Antennas


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