KR200219560Y1 - A Removal Embarkation Satellite Antenna Devices Using Rotary Waveguide - Google Patents

Abstract

The present invention relates to a mobile antenna mounted antenna using a rotating waveguide, and in particular, installed in a mobile vehicle such as a vehicle to direct the satellite antenna in the direction of the satellite irrespective of the direction of the vehicle, the satellite antenna to position the satellite The present invention relates to a mobile antenna mounted antenna using a rotating waveguide for capturing and receiving satellite signals. To this end, the antenna unit is located inside the radome having a hemispherical shape, and receives the satellite signal from the satellite and converts it into circular polarization; A rotating part coupled to one surface of the antenna part to support rotation of the antenna part, and having a first waveguide formed at a center thereof; The circularly polarized wave is inputted through the first waveguide of the rotating unit and converted into an intermediate frequency; A satellite tracking signal generation unit for generating an intermediate frequency converted by the LNB as a broadcast signal capable of monitoring the satellite signal and a satellite tracking signal for identifying the position of the satellite; The satellite tracking signal generation unit is connected to the satellite receiving tuner to set the satellite channel, and the control board for generating a motor drive signal in accordance with the satellite tracking signal; According to the motor drive signal of the control board, characterized in that it comprises a drive motor for rotating the antenna unit in the direction of the satellite signal.

Description

A satellite antenna device using a rotary waveguide {A Removal Embarkation Satellite Antenna Devices Using Rotary Waveguide}

The present invention relates to a mobile antenna mounted antenna using a rotating waveguide, and more particularly, installed on a mobile vehicle such as a vehicle to direct the satellite antenna in the direction in which the satellite is located regardless of the direction of the vehicle. The present invention relates to a mobile antenna mounted antenna using a rotatable waveguide for smoothly receiving a satellite signal by capturing a position of the antenna.

Currently, satellite antennas are used by applying actuators to direct fixed parabola antennas. However, these conventional satellite antennas capture the shadow of the sun to locate the satellites and install satellite antennas manually or receive satellite broadcast receivers. Since it is installed by using the strength of the raw signal, it is difficult to find the receiving point of the satellite signal by manually finding the position of the satellite and matching the satellite antenna with the receiving point of the satellite.

Therefore, to solve this problem, a mechanical tracking method and an electronic tracking method are applied to the satellite antenna, but the electronic tracking method forms a beam in the direction of the satellite by synthesizing the satellite signals received through a plurality of array antennas with a phase shifter. However, such an electronic tracking method has a disadvantage in that the structure is complicated and the manufacturing cost is expensive, so that a lot of burden is generated to be applied to the satellite antenna.

In the mechanical tracking method, a fixed beam is used to obtain a rotation angle in the azimuth direction using a gyro sensor, and the accumulated tracking angle error is compensated through the strength of the satellite signal. In this mechanical tracking method, the tracking function for capturing satellites is very poor, and the cumulative error range of the antenna is large, which causes a lot of difficulty in receiving satellite signals by determining the position of the satellites.

The present invention is to solve the above problems, the object of the present invention is to install the satellite in the direction of the satellite, regardless of the direction of the vehicle is installed on a moving object, such as a vehicle, the satellite antenna is the position of the satellite It is to provide a mobile antenna mounted antenna using a rotating waveguide to capture the satellite signal smoothly.

In order to achieve the above object, the antenna unit 100 is located inside the radome 10 having a hemispherical shape, and receives the satellite signal from the satellite and converts it into circular polarization; A rotating part 200 coupled to one surface of the antenna part 100 to support rotation of the antenna part 100 and having a first waveguide 20 formed in the center thereof; The circularly polarized wave is received through the first waveguide 20 of the rotating unit 200 and converted into an intermediate frequency LNB (300); A satellite tracking signal generator 400 for generating a broadcast signal capable of monitoring the intermediate frequency converted by the LNB 300 and a satellite tracking signal for identifying a satellite position; The satellite tracking signal generating unit 400 is connected to the satellite receiving tuner 30 to set the satellite channel, and the control board 500 for generating a motor drive signal in accordance with the satellite tracking signal; In accordance with the motor drive signal of the control board 500, a mobile antenna mounted satellite using a rotary waveguide, characterized in that it comprises a drive motor 600 for rotating the antenna unit 100 in the direction of the satellite signal. Achieved by the device.

Here, the antenna unit 100 is preferably attached to the first flat plate antenna 140 and the second flat plate antenna 160 on one surface of the panel 120 having a circular shape, to receive a satellite signal.

In addition, the beams of the first flat plate antenna 140 and the second flat plate antenna 160 are preferably formed at a 45 ° angle.

The satellite tracking signal generator 400 includes: a power divider 420 in which an intermediate frequency converted by the LNB 300 is input to the first divider 40 and the second divider 50; A first power combiner 440 which receives an intermediate frequency from the power divider 420 and outputs a broadcast signal that can be monitored; A phase shifter 460 for adjusting the phase of the intermediate frequency according to the phase control signal received from the control board 500 for the intermediate frequency output to the power divider 420; Preferably, the phase shifter 460 includes a second power combiner 480 for transmitting the satellite tracking signal obtained by the phase shifter 460 to the control board 500.

Here, the phase shifter 460 adjusts the phase of the intermediate frequency in accordance with the phase control signal input to the first phase shifter 60 and the second phase shifter 70 to determine the direction in which the satellite is located. It is desirable to.

When the motor driving signal of the control board 500 is input to the driving motor 600, the pulley 640 coupled to the driving shaft 620 of the driving motor 600 is driven, and the pulley 640. Rotation force generated in the is preferably transmitted to the rotating unit 200 through the timing belt (660).

And, the rotating unit 200 is coupled to one surface of the antenna unit 100 receives the rotational force of the drive motor 600, the first rotating plate 220 for supporting the rotation of the antenna unit 100; A second rotating plate 240 which maintains a predetermined distance from one surface of the first rotating plate 220 and the other surface is fixed to an upper surface of the LNB 300; It is preferable that the first rotating plate 220 and the second rotating plate 240 is configured to include a bearing 260 for supporting to rotate in a predetermined direction with each other.

In addition, when the timing belt 660 transmits a rotational force to the first rotating plate 220 coupled to one surface of the antenna unit 100, it is most preferable that the antenna unit 100 is rotated.

Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

1 is a schematic use state diagram showing a mobile antenna mounted antenna using a rotary waveguide according to the present invention,

2 is a front sectional view showing a mobile antenna mounted antenna using a rotating waveguide according to the present invention,

3 is a block diagram showing a mobile antenna mounted antenna using a rotary waveguide according to the present invention,

4 is a front view showing the antenna unit of the present invention,

5 is a rear view illustrating the antenna unit shown in FIG. 4;

6 is a block diagram showing an LNB of the present invention;

7 is a block diagram showing a satellite tracking signal generator of the present invention;

<Explanation of symbols for main parts of the drawings>

10: radome 20: first waveguide

30: satellite tuner 40: first distributor

50: second distributor 60: first phase shifter

70: second phase shifter 100: antenna portion

120: panel 140: first flat antenna

160: second plate antenna 200: rotating part

220: first turn plate 240: second turn plate

260: bearing 300: LNB

400: satellite tracking signal generator 420: power divider

440: first power combiner 460: phase shifter

480: second power combiner 500: control board

600: drive motor 620: drive shaft

640: pulley 660: timing belt

700: satellite antenna 720: circularly polarized wave generator

740: third waveguide 760: second waveguide

770: low noise amplifier 780: circular polarizer

790: local oscillation unit 800: IF amplification unit

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic use state diagram showing a mobile antenna mounted antenna using a waveguide according to the present invention. As shown in FIG. 1, the satellite antenna 700 is installed on a moving object such as a vehicle, so as to direct the satellite antenna 700 in a direction in which the satellite is located regardless of the direction of the vehicle. Therefore, the satellite antenna 700 captures and tracks the position of the satellite, thereby receiving a smooth satellite signal from the satellite, and outputting the received satellite signal as a broadcast signal that can be monitored.

2 is a front sectional view showing a mobile antenna mounted antenna using a rotating waveguide according to the present invention. As shown in FIG. 2, one surface of the antenna unit 100 is fixed to the rotating unit 200 in the hemispherical radome 10. Here, the first rotating plate 220 and the second rotating plate 240 in which the first waveguide 20 is formed in the center of the rotating part 200, the first rotating plate 220 is the drive motor 600 The antenna unit 100 is rotated by receiving the rotation force. One surface of the second rotating plate 240 maintains a predetermined interval of the first rotating plate 220, and the other surface of the second rotating plate 240 is fixed to the upper surface of the LNB 300. The first rotating plate 220 and the second rotating plate 240 are in close contact with each other by inserting the bearing 260 to be rotatable in a predetermined direction.

Therefore, when the satellite signal transmitted from the satellite is received through the antenna unit 100, the satellite signal is converted into circular polarization by a circular polarization generator (not shown) and input to the LNB 300. After the circular polarization input to the LNB 300 is restored to a satellite signal, the intermediate frequency having the same phase is generated to be input to the satellite tracking signal generator 400 to determine the position of the broadcast signal and the satellite that can be monitored. It is generated by satellite tracking signal.

When the generated satellite tracking signal is input to the control board 500, the control board 500 directs the motor driving signal to the driving motor 600 to direct the antenna unit 100 in the direction in which the satellite is located. send. Accordingly, the pulley 640 coupled to the drive shaft 620 of the drive motor 600 is driven, and the rotational force generated therefrom is transmitted to the rotating unit 200 through the timing belt 660. Therefore, the first rotating plate 220 coupled to one surface of the antenna unit 100 is rotated so that the antenna unit 100 is oriented in the direction in which the satellite is located.

3 is a block diagram showing a mobile antenna mounted antenna using a rotary waveguide according to the present invention. As shown in FIG. 3, the first planar antenna 140 and the second planar antenna 160 installed inside the radome (not shown) having a hemispherical shape receive satellite signals from satellites and transmit them to the LNB 300. Output Here, the satellite signal output from the antenna unit 100 is converted into circular polarization by the circular polarization generator 720 and input to the LNB 300. The circular polarization input to the LNB 300 is circular polarized wave restoration. Through the (not shown) is converted to the intermediate frequency of the same phase, and transmitted to the satellite tracking signal generator 400.

Here, the intermediate frequency input to the satellite tracking signal generator 400 generates a broadcast signal that can be monitored and outputs it to a satellite broadcast receiver (not shown). When the phase control signal output from the control board 500 is input to the satellite tracking signal generator 400, the phase of the intermediate frequency is adjusted according to the phase control signal to generate the satellite tracking signal.

When the satellite tracking signal output from the satellite tracking signal generator 400 is input to the control board 500 through the tuner 30, the control board 500 generates a motor driving signal to drive the motor 600. To send). In addition, the driving motor 600 rotates the antenna unit 100 coupled to one surface of the rotating unit (not shown) so as to be directed in the direction of the satellite.

4 is a front view showing the antenna unit of the present invention, Figure 5 is a rear view showing the antenna unit shown in FIG. As shown in FIGS. 4 and 5, a first flat plate antenna 140 and a second flat plate antenna 160 forming a beam having a 45 ° angle are attached to one surface of the circular panel 120. In addition, the first planar antenna 140 and the second planar antenna 160 are respectively connected to the circular polarization generator 720 and protrude into a third waveguide 740 formed at the center of the panel 120. .

6 is a block diagram showing an LNB of the present invention. As shown in FIG. 6, when a circular polarization generated by an antenna unit (not shown) is received through the second waveguide 760, the original polarization decompressor 780 via the low noise amplifier 770 may be used. Restore to satellite signal. After the restored satellite signal is mixed with the local oscillator 790, an intermediate frequency is generated through the IF amplifier 800.

7 is a block diagram showing a satellite tracking signal generation unit of the present invention. As shown in FIG. 7, the intermediate frequency converted from the LNB (not shown) is input to the first divider 40 and the second divider 50, which are the power divider 420, respectively. The first power combiner 440 is connected to a first power combiner 440 in which the signals of the first divider 40 and the second divider 50 are combined, and the first power combiner 440 outputs a broadcast signal that can be monitored. You can watch satellite broadcasts accordingly.

The phase shifter 460 is connected to the first divider 40 and the second divider 50, which are the power divider 420, and the first phase shifter 60 of the phase shifter 460. ) And the second phase shifter 70 receives the phase control signal output from the control board (not shown), and determines the direction in which the satellite is located by adjusting the phase of the intermediate frequency. This outputs the satellite tracking signal through the second power combiner 480 to determine whether the satellite is located on the left or the right.

The power input to the first power combiner 440 is distributed through the second power combiner 480 and the power divider 420. In addition, the power divider 420, the first power combiner 440, and the second power combiner 480 require a wide bandwidth, and therefore, may be used in a 180 ° hybrid type using ferrite.

As described above, according to the mobile antenna mounted antenna using the rotary waveguide according to the present invention, the antenna is installed in a mobile body such as a vehicle to direct the satellite antenna in the direction of the satellite regardless of the direction of the vehicle.

Such a mobile antenna mounted antenna using a rotating waveguide according to the present invention has a feature that allows a satellite antenna installed in a mobile vehicle to capture a satellite position and receive a satellite signal and output the broadcast signal as a monitorable signal.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, various other modifications and variations may be made without departing from the spirit and scope of the present invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope of the present invention.

Claims (8)

In a mobile antenna mounted antenna using a rotating waveguide, An antenna unit 100 positioned inside the radome 10 having a hemispherical shape and receiving satellite signals from satellites and converting the signals into circular polarizations; A rotating part 200 coupled to one surface of the antenna part 100 to support rotation of the antenna part 100 and having a first waveguide 20 formed in the center thereof; The circularly polarized wave is received through the first waveguide 20 of the rotating unit 200 and converted into an intermediate frequency LNB (300); A satellite tracking signal generator 400 for generating a broadcast signal capable of monitoring the intermediate frequency converted by the LNB 300 and a satellite tracking signal for identifying a satellite position; The satellite tracking signal generating unit 400 is connected to the satellite receiving tuner 30 to set the satellite channel, the control board 500 for generating a motor drive signal in accordance with the satellite tracking signal; In accordance with the motor drive signal of the control board 500, a mobile antenna mounted satellite using a rotary waveguide, characterized in that it comprises a drive motor 600 for rotating the antenna unit 100 in the direction of the satellite signal. Device. The antenna unit 100 of claim 1, wherein the antenna unit 100 attaches the first flat plate antenna 140 and the second flat plate antenna 160 to one surface of the circular panel 120 to receive satellite signals. Moving antenna mounted satellite antenna device using a rotating waveguide. [3] The satellite antenna device of claim 2, wherein the beams of the first and second planar antennas are formed in a direction of 45 degrees. The method of claim 1, wherein the satellite tracking signal generator 400, A power divider 420 into which the intermediate frequency converted by the LNB 300 is input to the first divider 40 and the second divider 50; A first power combiner 440 which receives an intermediate frequency from the power divider 420 and outputs a broadcast signal that can be monitored; A phase shifter 460 for adjusting the phase of the intermediate frequency according to the phase control signal received from the control board 500 for the intermediate frequency output to the power divider 420; Moving body using a rotating waveguide, characterized in that it comprises a second power combiner 480 for transmitting the satellite tracking signal obtained by the phase shifter 460 to the control board 500. Onboard satellite antenna device. The phase shifter 460 adjusts the phase of the intermediate frequency according to the phase control signal input to the first phase shifter 60 and the second phase shifter 70, thereby positioning the satellite. Moving object-mounted satellite antenna device using a rotating waveguide, characterized in that the grasp direction to. According to claim 1, When the motor drive signal of the control board 500 is input to the drive motor 600, to drive the pulley 640 coupled with the drive shaft 620 of the drive motor 600, Rotation force generated in the pulley 640 is a mobile antenna mounted satellite antenna device using a rotary waveguide, characterized in that for transmitting to the rotating unit 200 through a timing belt (660). According to claim 1 or 6, The rotating unit 200, A first rotating plate 220 coupled to one surface of the antenna unit 100 to receive the rotational force of the driving motor 600 to support rotation of the antenna unit 100; A second rotating plate 240 which maintains a predetermined distance from one surface of the first rotating plate 220 and the other surface is fixed to an upper surface of the LNB 300; And a bearing (260) for supporting the first rotating plate (220) and the second rotating plate (240) to be rotatable in a predetermined direction with each other. According to claim 7, When the timing belt 660 transmits the rotational force to the first rotating plate 220 coupled to one surface of the antenna unit 100, characterized in that the antenna unit 100 is rotated Mobile antenna mounted antenna using rotating waveguide.