A Simple On-Board Calibration Method and Its Accuracy for Mechanical Distortions of Satellite Phased Array Antennas
Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany
Tagungsband: EuCAP 2009
Seiten: 5Sprache: EnglischTyp: PDF
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Autoren:
Takahshi, T.; Nakamoto, N.; Ohtsuka, M.; Aoki, T.; Konishi, Y. (Mitsubishi Electric Corporation, 5-1-1 Ofuna, Kamakura, 247-8501 Japan)
Yajima, M. (Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, 305-8505 Japan)
Inhalt:
In satellite phased array antennas, some mechanical distortions, which may be due to launching vibrations or thermal variations in orbit, will cause significant degradations of the electrical performances. In this paper, a simple calibration method is proposed for such mechanical distortions, which can be attained by an on-board measurement system. The method is validated by experiments and its accuracies are also evaluated. The proposed method can attain the theoretically-predicted calibration accuracy.