A Full Calibration Approach on a Drone-Borne Platform for HF Antenna Measurements in Smart Grid Energy Facilities

Marius Pastorcici; Andreea Constantin; Adelaida Heiman; Razvan D. Tamas

doi:10.20944/preprints202406.1501.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 20 June 2024 / Approved: 21 June 2024 / Online: 24 June 2024 (05:16:38 CEST)

Emerging data processing techniques brought back into attention the HF range communication as an interesting alternative to third-party solutions for IoT applications, such as data transmission in distributed energy production facilities. The physical size of HF antennas, often comparable to the surrounding objects, require in-situ radiation measurements. Drone-borne measuring systems are already known as a flexible solution, but mostly restricted to higher frequency ranges. In this work, we propose to use an electrically small, folded dipole as a probe for drone-borne measurements on HF antennas. We also propose a calibration approach for the effects related to the near-field zone, and to the drone body proximity. The impact of ground reflection is also investigated. We show that despite its low, realized gain figure such a probe can provide stable results for near-field measurements, even at low input power levels.

drone-borne; HF antennas; Internet of Things (IoT); folded dipole; Open Area Test Site (OATS); antenna measurements; near-field antenna measurements

Engineering, Electrical and Electronic Engineering

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A Full Calibration Approach on a Drone-Borne Platform for HF Antenna Measurements in Smart Grid Energy Facilities

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