Symmetrical 4-degree of freedom series-parallel hybrid antenna structure system

Abstract

The invention discloses a symmetrical 4-degree of freedom series-parallel hybrid antenna structure system, which comprises an antenna reflector. The antenna reflector is connected on an antenna pedestal; a polarization rotation device comprises a polarization plate and a fixing plate; the fixing plate is fixed at the top of the antenna pedestal; the polarization plate is located above the fixing plate; a rotating bearing is concentrically arranged between the fixing plate and the polarization plate; the polarization plate is fixedly connected with the inner ring of the rotating bearing; the fixing plate is fixedly connected with the outer ring of the rotating bearing; the center of the polarization plate extends outwards to form a toothed ring edge; a polarization motor fixed on the fixingplate is matched with the toothed ring edge to drive the polarization plate to rotate in an auto mode; a driving arm and a driven arm are provided with rotating rod shafts; the rotating rod shafts are hinged; the hinged rotating rod shafts generate the ability to rotate in the own circumference during a movement process, and thus, the rotating rod shafts can have rotating energy during use, and the radius of rotation can be improved when rotating directions coincide.

Description

technical field [0001] The invention belongs to the field of antenna devices, and in particular relates to a symmetrical four-degree-of-freedom hybrid antenna structure system. Background technique [0002] The antenna pedestal is the support and orientation device of the antenna system. Its function is to enable the antenna reflector to follow the predetermined trajectory or follow the target movement, accurately point to the target, and accurately measure the direction of the target. Its structure is largely It affects the performance index of the whole antenna. [0003] With the rapid development of antenna technology, the size and weight of antenna mounts continue to increase, and the performance requirements for rotational angular velocity, angular acceleration, accuracy, stiffness, reliability, and dynamic characteristics are increasing. It is difficult to meet these requirements. With the development of technology, parallel mechanisms have gradually begun to be appl...

AI Technical Summary

Problems solved by technology

[0005] In view of the many shortcomings of the traditional antenna and the six-degree-of-freedom parallel mechanism mentioned above, a symmetrical four-degree-of-freedom hybrid antenna structure system is provided, which solves the problem of the "blind area" of the traditional antenna seat over the top, and realizes the antenna work At the same time as the continuous tracking of any attitude in the airspace without blind spots, it also solves the shortcomings of the six-degree-of-freedom parallel mechanism antenna mount that requires more drive motors and cannot be applied to antennas other than circular polarization, and expands the parallel mechanism antenna mount The scope of application of the rack

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