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The Design and Implementation of a Phased Antenna Array System for LEO Satellite Communications
Cezar-Ion Adomnitei1,2, Cezar-Eduard Lesanu1, Adrian Done1
1Department of Computers, Electronics and Automation, Stefan cel Mare University of Suceava, 720229 Suceava, Romania.
Sensors (Basel, Switzerland)
|March 28, 2024
Summary
This study introduces a novel phased antenna array for Low Earth Orbit (LEO) satellite communications, enhancing connectivity for Internet of Things (IoT) devices in remote areas. The system demonstrates precise control over the radiation lobe, improving overall link performance.
Area of Science:
- Satellite Communications Engineering
- Antenna Array Design
- Wireless Networking
Background:
- Low Earth Orbit (LEO) satellite constellations offer potential for expanding global connectivity.
- Internet of Things (IoT) requires robust communication infrastructure, especially in remote regions.
- Existing terrestrial networks face limitations in covering isolated geographical areas.
Purpose of the Study:
- To enhance Low Earth Orbit (LEO) satellite communication performance for Internet of Things (IoT) applications.
- To introduce and validate a novel phased antenna array system for LEO satellite reception.
- To demonstrate accurate control over the main radiation lobe's directionality.
Main Methods:
- Implementation of a four-element, three-quarter wavelength phased antenna array.
- Utilizing progressive phase shifts to steer the antenna's main radiation lobe.
- Conducting numerical analysis and experimental measurements to evaluate performance.
Main Results:
- Achieved effective control of the main radiation lobe orientation.
- Numerical analysis indicated a maximum gain of approximately 12 dBi at 42° elevation.
- Experimental results showed a Half Power Beamwidth (HPBW) between 76° and 87° in the azimuth plane and a maximum Front-to-Back ratio of 14.5 dB.
Conclusions:
- The novel phased antenna array system is successfully realized and optimized for LEO IoT satellite reception.
- The system exhibits high performance with precise radiation lobe control, confirming its viability.
- This technology can significantly improve connectivity in remote areas via LEO satellite networks.
Keywords:
LEO satellite communicationsantenna radiation patternbeam steeringelectronic phase controlphased antenna arrayMore Related Videos
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