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http://dx.doi.org/10.7471/ikeee.2022.26.2.211

A Study on S-Band Phased Array Antenna System for Receiving LEO Satellite Telemetry Signals  

Lee, Dong-Hyo (Korea Aerospace Research Institute (KARI))
Seo, Jung-Won (Korea Aerospace Research Institute (KARI))
Lee, Myoung-Sin (Korea Aerospace Research Institute (KARI))
Chung, Daewon (Korea Aerospace Research Institute (KARI))
Lee, Dongkook (DUTA Technology, Co. Ltd.)
Pyo, Seongmin (Dept. of Information and Communication Engineering, Hanbat National University)
Publication Information
Journal of IKEEE / v.26, no.2, 2022 , pp. 211-218 More about this Journal
Abstract
This paper presents a S-band phased array antenna system for receiving LEO satellite telemetry signals. The proposed antenna, which is performed to be beam-tiled along the elevation direction, consists of 16 sub-array assemblies, 16 active circuit modules, a perpendicular feed network and a control/power unit. In order to precisely track an LEO satellite, the developed antenna is placed with its elevation axis along the projected trajectory of the satellite on the earth. The center of antenna aperture is facing to the maximum elevation angle in the LEO trajectory. The beam-tilted angles for tracking LEO satellite are obtained by calculating accurately satellite points. Satellite tracking measurements are carried out in the range of ±30° with the respect to the maximum elevation angle. The S/N ratio of 16.5 dB and the Eb/No of 13.3 dB at the maximum elevation angle are obtained from the measurements. The measured result agrees well with the pre-analyzed system margin.
Keywords
Phased Array Antenna; LEO Satellite; Telemetry; Satellite point; Maximum Elevation Angle;
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Times Cited By KSCI : 2  (Citation Analysis)
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