| Autor: |
이재덕, 김세영, 이종환, 이동우, 류지호, 성진봉 |
| Předmět: |
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| Zdroj: |
Journal of Korean Institute of Electromagnetic Engineering & Science / Han-Guk Jeonjapa Hakoe Nonmunji; Mar2023, Vol. 34 Issue 3, p232-235, 4p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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