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Using numerical analysis methods, this paper analyzes the focusing characteristics of the circular aperture ellipsoidal antenna, introduces the basic tenets of initiative and passive millimeter-wave imaging and their respective characteristics. As to the ellipsoid right antenna system for millimeter-wave imaging, this paper analyzes the near-field field-strength and resolution so on. In the end, this paper indicates that ellipsoid antenna used for security checking has special advantages.

ellipsoid antenna; focusing plane array; millimeter-wave imaging