TITLE:
Development of Electromechanical System for Antenna Positioning
AUTHORS:
Asif A. Mulla, Pramod N. Vasambekar
KEYWORDS:
Antenna Measurements, Antenna Control System, Positioning Sensor, Angular Displacement Measurement
JOURNAL NAME:
Open Access Library Journal,
Vol.12 No.8,
August
22,
2025
ABSTRACT: A complete open-loop, dual-axes Ku-band electromechanical system has been developed, implemented, and tested for the antenna positioning. The system is developed by using a magnetic positioning sensor AS5600, a PIC18F4553 controller, a microstepping driver STK672-080, and a hybrid stepper motor. A microstepping driver and magnetic positioning sensors are used to improve the system’s performance. The system software is developed using MPLAB X v3.2 IDE. In the antenna mechanical assembly, the elevation over azimuth system is developed using worm gears with deep groove ball bearings. The satellite look angles are calculated using a GUI developed in C# for different satellites. The developed GUI and system are tested for angular displacement measurement and antenna positioning for Ku-band DTH service providers on geostationary satellites. The statistical measures mean, Standard Deviation, Relative Accuracy, Mean Absolute Error, and Root Mean Square Error are determined for the recorded angles for system performance. The developed electromechanical system shows a lower error profile.