Abstract: A communication system according to one embodiment comprises: a communication device including a tracking unit which rotates with respect to a first axis, a second axis, and a third axis that are orthogonal to each other and which performs radio-wave communication with a moving object moving within the field of view; and a controller for controlling the communication device so that the tracking unit rotates with respect to the first axis and the second axis in the range of a first trajectory angle of the moving body and rotates with respect to the second axis and the third axis in the range of a second trajectory angle of the moving object.

Abstract: An antenna for satellite communication includes; a signal transmitting and receiving unit for receiving or transmitting a signal from/to the satellite; a driving unit for rotating the signal transmitting and receiving unit so as to enable the signal transmitting and receiving unit to track the satellite; an anti-vibration unit provided inside the posts for elastically supporting the signal transmitting and receiving unit or the driving unit. Therefore, by providing the anti-vibration unit inside the posts, it is possible to increase availability for a circumferential space of the posts and to simplify the structure of the anti-vibration unit.

Abstract: Provided is a satellite communication antenna, including a signal transmitting/receiving section for receiving signals from a satellite and transmitting the signals to the satellite; a driving section for rotating the signal transmitting/receiving section so that the signal transmitting/receiving section tracks the satellite; a main post, provided in a longitudinal direction, for supporting the driving section; and a vibration absorption section, provided to a circumference of the main post, for preventing vibrations or impacts from transferring into the signal transmitting/receiving section, thereby to attenuate vibrations or impacts acting on the signal transmitting/receiving section in up and down direction.

Abstract: There are provided a polarizer rotating device and a satellite signal receiving apparatus having the same. The satellite signal receiving apparatus includes a feedhorn that receives a satellite signal; a low noise block down converter that processes the signal received by the feedhorn; a skew compensating device that is provided at the low noise block down converter or the feedhorn and rotates the low noise block down converter or the feedhorn to compensate for a skew angle when the satellite signal received by the feedhorn is a linearly polarized wave; a polarizer that receives a linearly polarized signal and a circularly polarized signal of the satellite signal; and a polarizer rotating device that rotates the polarizer when the satellite signal received by the polarizer is a circularly polarized wave. In such a simple structure, the linearly polarized wave and the circularly polarized wave are all received to be processed.

Abstract: A satellite antenna housing includes: a first layer; a second layer formed so as to be in contact with one side of the first layer; a third layer formed so as to be in contact with one side of the second layer and face the first layer; a fourth layer so as to be in contact with one side of the third layer and face the second layer; and a fifth layer so as to be in contact with one side of the fourth layer and face the third layer, wherein the first layer, the third layer, and the fifth layer may be formed of a material having a dielectric constant higher than that of the second layer and the fourth layer, and the second layer and the fourth layer may have a thickness greater than that of the first layer, the third layer, and the fifth layer.

Abstract: An antenna for satellite communication includes; a signal transmitting and receiving unit for receiving or transmitting a signal from/to the satellite; a driving unit for rotating the signal transmitting and receiving unit so as to enable the signal transmitting and receiving unit to track the satellite; an anti-vibration unit provided inside the posts for elastically supporting the signal transmitting and receiving unit or the driving unit. Therefore, by providing the anti-vibration unit inside the posts, it is possible to increase availability for a circumferential space of the posts and to simplify the structure of the anti-vibration unit.

Abstract: Disclosed is a satellite communication antenna, including a signal transmitting/receiving section for receiving signals from a satellite and transmitting the signals to the satellite; a driving section for rotating the signal transmitting/receiving section so that the signal transmitting/receiving section tracks the satellite; a main post, provided in a longitudinal direction, for supporting the driving section; and a vibration absorption section, provided to a circumference of the main post, for preventing vibrations or impacts from transferring into the signal transmitting/receiving section, thereby to attenuate vibrations or impacts acting on the signal transmitting/receiving section in up and down direction.

Abstract: There are provided a polarizer rotating device and a satellite signal receiving apparatus having the same. The satellite signal receiving apparatus includes a feedhorn that receives a satellite signal; a low noise block down converter that processes the signal received by the feedhorn; a skew compensating device that is provided at the low noise block down converter or the feedhorn and rotates the low noise block down converter or the feedhorn to compensate for a skew angle when the satellite signal received by the feedhorn is a linearly polarized wave; a polarizer that receives a linearly polarized signal and a circularly polarized signal of the satellite signal; and a polarizer rotating device that rotates the polarizer when the satellite signal received by the polarizer is a circularly polarized wave. In such a simple structure, the linearly polarized wave and the circularly polarized wave are all received to be processed.

Abstract: Disclosed herein is a reflector assembly for satellite antenna according to an exemplary embodiment of the present invention, including: a reflector having a parabola shape and made of a first material; and a reinforcing member disposed at an edge of the reflector in a circumferential direction of the reflector and made of a second material, wherein the reflector includes a bend part formed by bending an edge of the reflector so as to enclose the reinforcing member to couple the reinforcing member to the reflector. According to the present invention, it is to provide a reflector assembly for a satellite antenna capable of increasing rigidity of the reflector maintaining lightness and improving efficiency of manufacturing process and productivity.