Phase Shift Effects Analysis on Radiation Pattern of a Ground Plane Antenna Array

Adomnitei, Cezar-Ion; Lesanu, Cezar-Eduard; Done, Adrian; Dimian, Mihai; Chiuchisan, Iulian; Yu, Ang

doi:10.1109/das54948.2022.9786221

Cited by 1 publication

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“…The programming of each of the four-phase shifters was based on the same software diagram. The phase shifters were previously tested within linear antenna arrays in the 868 MHz and 915 MHz frequency bands [38,39]. The frequency range for the AD8340 vector modulator circuit is 700 MHz-1 GHz.…”

Section: Design and Implementation Of The Phased Antenna Array System...mentioning

confidence: 99%

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The Design and Implementation of a Phased Antenna Array System for LEO Satellite Communications

Adomnitei,

Lesanu,

Done

et al. 2024

Sensors

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LEO satellite constellations can provide a viable alternative to expand connectivity to remote, isolated geographical areas and complement existing IoT terrestrial communication infrastructures. This paper aims to improve LEO satellite communications by implementing a new phased antenna array system that can significantly improve the radio communication link’s performance. By adjusting the progressive phase shift to each element of the antenna array system, the direction of the main radiation lobe of the phased antenna array system can be controlled with accuracy. As far as we know, it is the first time that a four-element, three-quarter wavelength phased antenna array system has been successfully realized with the intention of being optimized for implementation in LEO IoT satellite reception systems. The proposed system’s high level of performance is confirmed by the measurements, which indicate effective control of the main radiation lobe orientation. The numerical analysis shows a maximum gain close to 12 dBi for about 42° elevation, a Half Power Beamwidth (HPBW) of 32° in the vertical plane, and 80° in the azimuth plane. The experimental measurement results at various main lobe orientation angles revealed an HPBW ranging from 76° to 87° in the azimuth plane and a maximum Front-to-Back ratio (F/B) of 14.5 dB.

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Section: Design and Implementation Of The Phased Antenna Array System...mentioning

confidence: 99%

“…Figure 12 shows the results obtained from these laboratory tests. The phase shifters were previously tested within linear antenna arrays in the 868 MHz and 915 MHz frequency bands [38,39]. The frequency range for the AD8340 vector modulator circuit is 700 MHz-1 GHz.…”

Section: Design and Implementation Of The Phased Antenna Array System...mentioning

confidence: 99%

The Design and Implementation of a Phased Antenna Array System for LEO Satellite Communications

Adomnitei,

Lesanu,

Done

et al. 2024

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

Phase Shift Effects Analysis on Radiation Pattern of a Ground Plane Antenna Array

Cited by 1 publication

References 7 publications

The Design and Implementation of a Phased Antenna Array System for LEO Satellite Communications

The Design and Implementation of a Phased Antenna Array System for LEO Satellite Communications

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