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- Title
위성 탑재 영상레이다의 보정 경로 패턴 합성 기법.
- Authors
이재덕; 김세영; 이종환; 이동우; 류지호; 성진봉
- Abstract
The verification and characterization of the temperature stability of the antenna pattern is an important parameter during on-ground characterization because the operating temperature of the satellite SAR payload varies significantly depending on the orbit. Here, we propose a pattern synthesis technique that effectively verifies and characterizes the antenna beam pattern over temperature using the internal calibration path of a satellite SAR payload. The calibration path pattern is obtained by applying a phase ramp over the antenna elements, and this phase ramp is varied for every pulse repetition interval during the measurement via the calibration path. The feasibility of the proposed technique is verified using the measured antenna pattern in the near-field test over the temperature range, and the verification results are presented.
- Subjects
ANTENNA radiation patterns; DIRECTIONAL antennas; INTERVAL measurement; ANTENNAS (Electronics); SYNTHETIC aperture radar
- Publication
Journal of Korean Institute of Electromagnetic Engineering & Science / Han-Guk Jeonjapa Hakoe Nonmunji, 2023, Vol 34, Issue 3, p232
- ISSN
1226-3133
- Publication type
Article
- DOI
10.5515/KJKIEES.2023.34.3.232