Design of a Size Reduced Dual-Resonant Triple-Mode Quad-Element Dipole
Faculty Mentor
Dr. Sungkyun Lim
Location
Russell Union 2047
Type of Research
On-going
Session Format
Oral Presentation
College
Allen E. Paulson College of Engineering & Computing
Department
Electrical and Computer Engineering
Abstract
Multi-mode antennas are necessary for many applications where both short-range, omnidirectional communication as well as long-range, directional communication is needed simultaneously. Similarly, such antennas often encounter size constraints that necessitate compact designs being available. A full sized dual-band, quad-element dipole antenna has three modes of operation in each band: a dipole mode, a Yagi mode, and another dipole mode. In the dipole modes, a near 2 dBi omnidirectional gain is observed. In the Yagi modes, a high realized gain (RG) and a high front-back ratio (FBR) is observed. For reference, the standard dipole antenna has a kr of 1.6. The proposed antenna has a kr of 0.79—which is a size reduction of nearly half—while maintaining similar functionality to the full-sized version. The proposed antenna’s lower band has a -10-dB impedance bandwidth (IBW) of 8.5% centered at 2.290 GHz, and its upper band has a -10-dB IBW of 19.9% centered at 3.313 GHz. In the Yagi mode of each band, a peak RG of 5.8 dBi directive in the +z direction is found in the lower band, and a peak RG of 5.2 dBi directive in the +x direction is demonstrated in the upper band. In all dipole modes of operation of the proposed antenna, a near symmetric gain of around 1.6 dBi is realized.
Program Description
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Start Date
4-23-2026 11:30 AM
End Date
4-23-2026 11:45 AM
Recommended Citation
Huff, Cade, "Design of a Size Reduced Dual-Resonant Triple-Mode Quad-Element Dipole" (2026). GS4 Student Scholars Symposium. 125.
https://digitalcommons.georgiasouthern.edu/research_symposium/2026/2026/125
Design of a Size Reduced Dual-Resonant Triple-Mode Quad-Element Dipole
Russell Union 2047
Multi-mode antennas are necessary for many applications where both short-range, omnidirectional communication as well as long-range, directional communication is needed simultaneously. Similarly, such antennas often encounter size constraints that necessitate compact designs being available. A full sized dual-band, quad-element dipole antenna has three modes of operation in each band: a dipole mode, a Yagi mode, and another dipole mode. In the dipole modes, a near 2 dBi omnidirectional gain is observed. In the Yagi modes, a high realized gain (RG) and a high front-back ratio (FBR) is observed. For reference, the standard dipole antenna has a kr of 1.6. The proposed antenna has a kr of 0.79—which is a size reduction of nearly half—while maintaining similar functionality to the full-sized version. The proposed antenna’s lower band has a -10-dB impedance bandwidth (IBW) of 8.5% centered at 2.290 GHz, and its upper band has a -10-dB IBW of 19.9% centered at 3.313 GHz. In the Yagi mode of each band, a peak RG of 5.8 dBi directive in the +z direction is found in the lower band, and a peak RG of 5.2 dBi directive in the +x direction is demonstrated in the upper band. In all dipole modes of operation of the proposed antenna, a near symmetric gain of around 1.6 dBi is realized.
