Abstract: Provided is a satellite pointing system and a satellite pointing method of an automatic satellite tracking antenna using auxiliary LNBs including: an antenna unit configured by coupling a main feeder receiving a satellite broadcast signal and two or more auxiliary feeders to an antenna and a controller tracking a location of a target satellite by analyzing strength of each satellite signal received through the auxiliary feeders and generating a control signal for controlling a pointing direction of the antenna unit based on location information of the tracked target satellite.

Abstract: Provided is a satellite pointing system and a satellite pointing method of an automatic satellite tracking antenna using auxiliary LNBs including: an antenna unit configured by coupling a main feeder receiving a satellite broadcast signal and two or more auxiliary feeders to an antenna and a controller tracking a location of a target satellite by analyzing strength of each satellite signal received through the auxiliary feeders and generating a control signal for controlling a pointing direction of the antenna unit based on location information of the tracked target satellite.

Abstract: Provided is a stand-type portable antenna that adjusts elevation and azimuth with a single motor. The stand-type portable antenna has a waterproof structure in a form with the antenna opened, minimizing the size of a protective cover further accommodating an elevation driving range of the antenna. The elevation drive structure is independent from vibrations incurred by the azimuth adjustment of the antenna, thereby forming a structure in which a backlash between axes of the antenna is minimized.

Abstract: Provided are satellite tracking antenna system in a plurality of satellite environments and a satellite tracking method using the same, and more particularly, satellite tracking antenna system and method in a plurality of satellite environments, which may receive a satellite signal by stochastically estimating and tracking a target satellite using pre-stored information on satellite orbits, without information on satellite network identity (NID) for every received satellite signal.

Abstract: The present invention relates to a biaxial antenna using a single motor capable of simplifying an apparatus and saving a manufacturing cost by controlling elevation and azimuth with the single motor. The biaxial antenna includes a fixed central shaft having a screw thread formed on an outer circumference surface thereof, a rotation part having a screw thread formed on an inner circumference surface thereof to be coupled to the fixed central shaft, rotated, and including a first rotation plate which is moved to an upper side or a lower side, an antenna part having a rear surface connected to the first rotation plate and both sides hinge coupled to the rotation part, a motor connected to the rotation part to rotate the rotation part, and a controller controlling the number of revolutions and the degree of rotation of the motor to control elevation and azimuth of the antenna part.

Abstract: Provided is a satellite pointing system and a satellite pointing method of an automatic satellite tracking antenna using auxiliary LNBs including: an antenna unit configured by coupling a main feeder receiving a satellite broadcast signal and two or more auxiliary feeders to an antenna and a controller tracking a location of a target satellite by analyzing strength of each satellite signal received through the auxiliary feeders and generating a control signal for controlling a pointing direction of the antenna unit based on location information of the tracked target satellite.

Abstract: The present invention relates to a biaxial antenna using a single motor capable of simplifying an apparatus and saving a manufacturing cost by controlling elevation and azimuth with the single motor. The biaxial antenna includes a fixed central shaft having a screw thread formed on an outer circumference surface thereof, a rotation part having a screw thread formed on an inner circumference surface thereof to be coupled to the fixed central shaft, rotated, and including a first rotation plate which is moved to an upper side or a lower side, an antenna part having a rear surface connected to the first rotation plate and both sides hinge coupled to the rotation part, a motor connected to the rotation part to rotate the rotation part, and a controller controlling the number of revolutions and the degree of rotation of the motor to control elevation and azimuth of the antenna part.

Abstract: Provided is a power transmission apparatus including pulley having an outer circumferential surface forming a predetermined angle; a power transmission member that is provided to surround the driving shaft and the outer circumferential surface of the pulley and transmits a rotational force of the driving shaft; and a driven part provided outward in a radial direction of the pulley and forming a pair of catching ends respectively surrounding the power transmission member in a direction opposite to each other. The power transmission apparatus may increase spatial efficiency and form a high gear ratio by reducing an overall profile by the pulley that rotates with the driven shaft in parallel using a belt or a wire, and a block and tackle or a half-moon member provided outside the pulley.

Abstract: Provided is a stand-type portable antenna that adjusts elevation and azimuth with a single motor. The stand-type portable antenna has a waterproof structure in a form with the antenna opened, minimizing the size of a protective cover further accommodating an elevation driving range of the antenna. The elevation drive structure is independent from vibrations incurred by the azimuth adjustment of the antenna, thereby forming a structure in which a backlash between axes of the antenna is minimized.

Abstract: Provided are satellite tracking antenna system in a plurality of satellite environments and a satellite tracking method using the same, and more particularly, satellite tracking antenna system and method in a plurality of satellite environments, which may receive a satellite signal by stochastically estimating and tracking a target satellite using pre-stored information on satellite orbits, without information on satellite network identity (NID) for every received satellite signal.

Abstract: Provided is a planar horn array antenna includes: a waveguide part; a horn part having one side connected to the waveguide part and the other side formed with an opening for guiding a radio wave incident or emitted thereto; and a radio wave guide part having a dividing member coupled with the opening and consisting of circular dividing holes arranged in a matrix of n×n.

Abstract: The present invention relates to an automatic positioning antenna system for receiving multiple satellite signals and a method for tracking satellites to track positions of satellites through a satellite tracking LNB installed separately from a broadcast LNB, recognize the current position through information on tracked satellites and control an antenna to be oriented to the position of a target satellite to quickly receive satellite broadcast signals. The system includes an antenna unit having an antenna to which a broadcast LNB and a satellite tracking LNB receiving satellite signals for satellite tracking are connected, a switching unit for selecting the broadcast LNB or the satellite tracking LNB, a control unit for analyzing signals received through the satellite tracking LNB and controlling the antenna unit to be oriented to a target satellite using tracked satellite information; and a drive unit for moving the antenna unit under the control of the control unit.

Abstract: Provided is a ultra-wideband dual linear polarized wave waveguide antenna for communication having a wideband matching structure in which the inner peripheral surface of the first polarized wave filtering unit or the second polarized wave filtering unit, which filters a first polarized wave or a second polarized wave entering the dual linear polarized wave waveguide antenna and orthogonal to each other, are tapered such that a diameter of the inner peripheral surface becomes smaller, and having an extended path so as to adjust the first polarized wave and the second polarized wave so that they are in-phase. By doing so, the ultra-wideband dual linear polarized wave waveguide antenna is capable of both receiving and transmitting and thus can be used for communication, and can adjust skew angles without being mechanically rotated.

Abstract: Provided is a micro wideband antenna feeder, and more particularly, to a micro wideband antenna feeder in which a quad scheme antenna and a cross dipole antenna are coupled to each other. The micro wideband antenna feeder includes: a quad scheme antenna; and a cross dipole antenna installed orthogonal to the quad scheme antenna and irradiating current distribution orthogonal to current distribution irradiated from the quad scheme antenna. Since phases 0, 90, 180, and 270 can be shifted by being designed as a feeding network PCB, a circularly polarized wave can be implemented.

Abstract: Provided is a planar horn array antenna includes: a waveguide part; a horn part having one side connected to the waveguide part and the other side formed with an opening for guiding a radio wave incident or emitted thereto; and a radio wave guide part having a dividing member coupled with the opening and consisting of circular dividing holes arranged in a matrix of n×n.

Abstract: The present invention relates to an automatic positioning antenna system for receiving multiple satellite signals and a method for tracking satellites to track positions of satellites through a satellite tracking LNB installed separately from a broadcast LNB, recognize the current position through information on tracked satellites and control an antenna to be oriented to the position of a target satellite to quickly receive satellite broadcast signals. The system includes an antenna unit having an antenna to which a broadcast LNB and a satellite tracking LNB receiving satellite signals for satellite tracking are connected, a switching unit for selecting the broadcast LNB or the satellite tracking LNB, a control unit for analyzing signals received through the satellite tracking LNB and controlling the antenna unit to be oriented to a target satellite using tracked satellite information; and a drive unit for moving the antenna unit under the control of the control unit.

Abstract: Provided is a ultra-wideband dual linear polarized wave waveguide antenna for communication having a wideband matching structure in which the inner peripheral surface of the first polarized wave filtering unit or the second polarized wave filtering unit, which filters a first polarized wave or a second polarized wave entering the dual linear polarized wave waveguide antenna and orthogonal to each other, are tapered such that a diameter of the inner peripheral surface becomes smaller, and having an extended path so as to adjust the first polarized wave and the second polarized wave so that they are in-phase. By doing so, the ultra-wideband dual linear polarized wave waveguide antenna is capable of both receiving and transmitting and thus can be used for communication, and can adjust skew angles without being mechanically rotated.

Abstract: The present invention relates to a micro wideband antenna feeder, and more particularly, to a micro wideband antenna feeder in which a quad scheme antenna and a cross dipole antenna are coupled to each other. The micro wideband antenna feeder includes: a quad scheme antenna; and a cross dipole antenna installed orthogonal to the quad scheme antenna and irradiating current distribution orthogonal to current distribution irradiated from the quad scheme antenna. According to preferred embodiments of the present invention, since phases 0, 90, 180, and 270 can be shifted by being designed as a feeding network PCB, a circularly polarized wave can be implemented.

Abstract: Provided is a helix feed broadband antenna having a reverse center feeder, which minimizes an antenna enclosure and a radio wave shadow area by using the reverse center feeder including a reflecting plate and a rear radiation pattern, thereby enhancing performance of an antenna. The helix feed broadband antenna having a reverse center feeder, including a reverse center feeder which radiates an antenna radiation pattern backward; and a reflecting plate which is positioned at a rear side of the reverse center feeder so as to receive and transmit radio wave by reflecting an antenna beam radiated from the reverse center feeder.

Abstract: A satellite tracking antenna system with improved tracking characteristics and operating method thereof are disclosed. The system independently controls an elevation angle and an azimuth angle of an antenna according to the movement of a vehicle, controls the elevation angle of the antenna only when a satellite elevation-angle variation is equal to or higher than a reference value, so that it can improve the tracking speed and performance of the satellite. The system includes an antenna unit, a GPS receiver, an azimuth-angle gyro-sensor, a control board, a motor unit. The control board includes an elevation-angle controller and a main controller. The motor unit includes an elevation-angle motor and an azimuth-angle motor.