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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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)

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.