Antenna measurements of HF antennas using low cost UAVs

Abstract: High-frequency signal far-field measurement systems usually involve the use of complex and expensive equipment, since the measurements must be made at a distance of multiple wavelengths from the antenna. Helicopter surveyors are commonly utilized. However, in recent years, much research has focused on ways to lower measurement costs by lowering flying expenses or equipment costs, for as using helium aerostats. Despite this, costs are still high. The research question is whether the measurement of the far-field properties of HF-antennas can be accomplished using a simple low-cost GPS-configured unmanned aerial vehicle (UAV) and a simple single-frequency transmitter. The study includes the design and experimental verification of a radiation pattern measurement system for HF antennas, for which measurement accuracy is discussed. Finally, limitations and implementation-related issues are discussed.