Patent ID: 7663565

Claim:
A pedestal apparatus for stabilizing an attitude of a tracking antenna mounted at a moving object, the pedestal apparatus comprising: a fixing means rigidly fixed at the moving object; a first connecting means disposed inside the fixing means for forming a first rotating axis vertically to a surface of the fixing means that is fixed at the moving object; a first rotation supporting means having a bottom supporting member fixed at the fixing means and a Y-shaped top supporting member bifurcated to two tines for rotating the tracking antenna around the first rotating axis; two second connecting means, each being connected to an end of a respective one of the two tines of the Y-shaped top supporting member for forming a second rotating axis; a second rotation supporting means having both ends, each end being connected to a respective one of the two second connecting means for rotating the tracking antenna around the second rotating axis; a third connecting means for forming a third rotating axis at a center of the second rotation supporting means; and a supporting means connected to the third connecting means in a predetermined shape for supporting the tracking antenna, wherein the first, second and third rotating axes are not crossed one another, wherein the center of gravity of a first combination of the first rotation supporting means, the two second connecting means, the second rotation supporting means, the third connecting means, the supporting means and the tracking antenna is present on the first rotating axis, wherein the center of gravity of a second combination of the second rotation supporting means, the third connecting means, the supporting means and the tracking antenna is present on the second rotating axis, and wherein the center of gravity of a third combination of the supporting means and the tracking antenna is present on the third rotating axis.