Date of Graduation
5-2023
Document Type
Thesis
Degree Name
Bachelor of Science in Electrical Engineering
Degree Level
Undergraduate
Department
Electrical Engineering
Advisor/Mentor
Saunders, Robert
Abstract
The portable “roll-up” Dual-Band J-pole antenna model (commonly referred to as DBJ-2) is found to be the most favorable J-pole antenna design for serving a drone-mountable ham radio repeater. In addition to being light in weight, inexpensive to construct, and weather-resilient, the DBJ-2 offers the greatest Standing Wave Ratio (SWR) in the Very High Frequency (VHF) and Ultra High Frequency (UHF) bands compared to the other J-pole antenna designs evaluated. Enclosed is a brief overview of antenna design theory, as well as an exploration of various other J-pole antenna designs, and a clear rationale for selecting the DBJ-2 antenna design for this specific use case. Following the detailed theoretical background, the results of constructing and testing the DBJ-2 are given, as well as the results of tuning the antenna to the desired frequency range.
Keywords
Antenna, ham radio, dual-band, 20-meter, 70-centimeter
Citation
Wimer, J. (2023). Evaluation of Dual Band J-Pole Antennas to Serve Drone-Mountable Ham Radio Repeater. Electrical Engineering Undergraduate Honors Theses Retrieved from https://scholarworks.uark.edu/eleguht/90