Citation
Salas Natera, Miguel Alejandro and Martínez Rodríguez-Osorio, Ramón and Haro Ariet, Leandro de and Sierra Pérez, Manuel
(2012).
Calibration proposal for new antenna array architectures and technologies for space communications.
"IEEE Antennas and Wireless Propagation Letters", v. 11
;
pp. 1129-1132.
ISSN 1536-1225.
https://doi.org/10.1109/LAWP.2012.2215952.
Abstract
In large antenna arrays with a large number of antenna elements, the required number of measurements for the characterization of the antenna array is very demanding in cost and time. This letter presents a new offline calibration process for active antenna arrays that reduces the number of measurements by subarray-level characterization. This letter embraces measurements, characterization, and calibration as a global procedure assessing about the most adequate calibration technique and computing of compensation matrices. The procedure has been fully validated with measurements of a 45-element triangular panel array designed for Low Earth Orbit (LEO) satellite tracking that compensates the degradation due to gain and phase imbalances and mutual coupling.
