The invention discloses a
servo mechanism for a low-profile mobile
satellite communication antenna. The
servo mechanism for the low-profile mobile
satellite communication antenna comprises a double-correction ring-focus antenna, a
slip ring, tracking gears for three axes, a pitching supporting mechanism, a polarizing supporting mechanism, an installation platform, a base plate and the like, wherein the tracking gears for the three axes comprise the
azimuth tracking gear, the pitching tracking gear and the polarizing tracking gear, the inner circle and the outer circle of the
slip ring are connected with the installation platform and the base plate respectively, the
azimuth tracking gear is installed on the base plate and the installation platform, the pitching tracking gear is installed on the pitching supporting mechanism and the polarizing supporting mechanism, and the polarizing tracking gear is installed on the double-correction ring-focus antenna and the polarizing supporting mechanism. The
servo mechanism for the low-profile mobile
satellite communication antenna is characterized in that the
slip ring has the
signal breakover function and can serve as an
azimuth rotary shaft, the eccentricity design that the pitching supporting mechanism and the polarizing supporting mechanism are in orthogonal connection with the slip ring and are not in intersection with the slip ring, and thus the overall height of the mechanism is greatly reduced. The servo mechanism for the low-profile mobile satellite communication antenna has the advantages that the overall height is small, the size is small, the weight is low, the structure is simple, and
assembly and disassembly are convenient. The servo mechanism for the low-profile mobile satellite communication antenna can be applied to the roofs of small cross-country vehicles or other mobile carriers with installation spaces strictly limited.