Antenna apparatus and waveguide for use therewith

An antenna apparatus comprising:

• a fixed base having a datum plane and fixed in an installation place;
• a rotating base placed on the fixed base and configured to be rotatable about a Z axis perpendicular to the datum plane;
• a support rail having a shape of substantially a semicircular arc, the support rail being placed over the rotating base and configured to be rotatable about a Y axis perpendicular to the Z axis and having a central point on the Z axis, the Y axis passing through the central point of the support rail;
• a first and a second rotating shaft, the first rotating shaft being positioned between a first end of the support rail and the central point, the second rotating shaft being positioned between a second end of the support rail and the central point, the first rotating shaft and the second rotating shaft forming an X axis perpendicular to the Y axis, and the first rotating shaft and the second rotating shaft being configured to be rotatable about the X axis independently of each other;
• a first and a second antenna, the first antenna being fixed to the first rotating shaft and the second antenna being fixed to the second rotating shaft;
• a Z-axis rotating mechanism configured to allow the fixed base to rotate about the Z axis;
• Y-axis rotating mechanism configured to allow the support rail to rotate about the Y axis;
• and
• a first and second X-axis driving mechanism, the first X-axis driving mechanism configured to rotate the first rotating shaft and the second rotating shaft about the X axis independently of each other.