WO2011099672A1 - Émetteur-récepteur de signal multibande - Google Patents

Émetteur-récepteur de signal multibande Download PDF

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Publication number
WO2011099672A1
WO2011099672A1 PCT/KR2010/002289 KR2010002289W WO2011099672A1 WO 2011099672 A1 WO2011099672 A1 WO 2011099672A1 KR 2010002289 W KR2010002289 W KR 2010002289W WO 2011099672 A1 WO2011099672 A1 WO 2011099672A1
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WO
WIPO (PCT)
Prior art keywords
feed horn
band
signal
low noise
noise converter
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PCT/KR2010/002289
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English (en)
Korean (ko)
Inventor
차승현
손민선
유경준
한아름
Original Assignee
(주)인텔리안테크놀로지스
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Publication of WO2011099672A1 publication Critical patent/WO2011099672A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/0266—Waveguide horns provided with a flange or a choke
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/134—Rear-feeds; Splash plate feeds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole

Definitions

  • the present invention relates to a multi-band signal transmission and reception apparatus, and more particularly, to a multi-band signal transmission and reception apparatus capable of transmitting and receiving signals of a multi-band in one device, and can compensate for skew due to linearly polarized wave reception.
  • Reflector antennas are commonly used in satellite communications, high-capacity wireless communications, and the like.
  • the reflector antenna focuses the transmitted and received signals on at least one focal point using the principle of a reflective telescope.
  • a horn antenna or a feed horn may be installed at a focal position of the reflector antenna.
  • a parabolic antenna may be used as the reflector antenna.
  • the feed horn collects the reflected signal and delivers the reflected signal to a low noise block down converter (LNB).
  • LNB low noise block down converter
  • the low noise converter converts a signal received from a feed horn into a signal of an intermediate frequency band and transmits the signal to an external RF module.
  • the signal transmitted from the feed horn can be radiated into the air through the reflector antenna.
  • the low noise converter is a kind of electronic amplifier as a device corresponding to the first step of receiving a signal. Some additional noise is generated in the low noise converter, and the noise generated by the low noise converter itself can be amplified and transferred to the next stage. To maintain an optimal system, this noise must be minimized. Low noise converters are designed with noise floors to stabilize the entire satellite transceiver system.
  • a plurality of transmitting and receiving devices are separately provided for each band of the signals.
  • satellite broadcasting may be serviced through Ku band and Ka band, respectively, but until now, a Ku band signal transceiver for transmitting and receiving Ku band signals and a Ka band signal transceiver for transmitting and receiving Ka band signals are provided.
  • Each was installed separately. Therefore, not only the cost for transmitting and receiving signals of the multi band can be greatly increased, but also the installation space for transmitting and receiving signals of the multi band can be greatly increased.
  • a feed band for Ku band and a low noise converter must be provided in order to transmit and receive a signal with a satellite using Ku band frequency
  • a feed band for Ka band and a low noise converter can be used for transmitting and receiving signals with a satellite using Ka band frequency.
  • the user directly replaces the feed horn for the Ku band with the feed horn for the Ka band, There was the inconvenience of replacing the low noise converter with a low noise converter for the Ka band.
  • the skew angle generated between the satellite signal polarization and the reception polarization of the antenna when the signal transmitted from the satellite is a satellite signal having an arbitrary linear polarization is used. It could not be compensated automatically.
  • the antenna itself In order to transmit and receive signals with satellites using linear polarization according to the position of moving objects such as ships, the antenna itself must be rotated by the skew angle to compensate for the skew angle. This method increases the size of the antenna as the antenna itself is rotated. The manufacturing cost is high and the power loss was a big problem.
  • the antenna in order to transmit and receive a satellite signal having an arbitrary linear polarization, the antenna has to be rotated to compensate for skew, and the skew angle is not compensated. If not, there was a problem that satellite signal loss occurs.
  • One embodiment of the present invention provides a multi-band signal transmission and reception apparatus capable of transmitting and receiving signals of a multi-band in one device.
  • an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can easily implement a function that allows a device to transmit and receive multi-band signals in a simple structure.
  • an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can easily select and process a processor capable of processing the signal according to the type of band and polarization of the signal received in the feed horn.
  • an embodiment of the present invention provides a multi-band signal transmission and reception apparatus that can automatically compensate for the skew generated between the satellite signal polarization and the reception polarization of the feed horn when the signal transmitted from the satellite is a linear polarization.
  • a feed horn for receiving a multi-band signal
  • a low noise converter having a plurality of processing units for processing the signal received by the feed horn for each band of the signal
  • a skew compensation mechanism provided in the low noise converter or the feed horn and rotating the low noise converter or the feed horn to compensate for a skew angle when the signal received in the feed horn is linearly polarized.
  • a feed mechanism provided in the low noise converter or the feed horn and transferring at least one of the feed horn or the low noise converter so that a signal received in the feed horn is transmitted to a processing unit for processing a band of the signal
  • Processing units are disposed in the low noise converter so as to be adjacent to each other in at least one of a linear shape, a curved shape, a circular shape, an elliptic shape, or a polygonal shape, and at least one of the low noise converter or the feed horn is provided by the transfer mechanism. It may be transported along the same path as the arrangement shape of the processing units. This allows one low noise converter to transmit or receive signals of multiple bands.
  • a polarizer may be formed inside the waveguides to convert the circular polarization into a linear polarization when the signal received from the feed horn is a circular polarization.
  • a signal of circular polarization can also be processed.
  • the skew compensation mechanism may rotate the feed horn or the low noise converter by a predetermined angle to match the polarizer with the polarization plane of the linear polarization.
  • the skew compensation mechanism may be operated so that the polarization plane of the polarizer and the linear polarization coincide.
  • the skew compensation mechanism is provided at an upper end of the waveguide and the adapter is installed in the feed horn, a bearing rotatably provided on the outer peripheral surface of the adapter, a pulley rotatably provided on the outer peripheral surface of the bearing, provided on one side of the feed horn And a rotational driving unit for rotating the pulley and a rotational force transmitting member for connecting the rotational driving unit and the pulley to transfer the rotational force of the rotational driving unit to the pulley.
  • the skew compensation mechanism may further include a rotation amount detection sensor configured to detect a rotation amount of the feed horn or the low noise converter.
  • the transfer mechanism is connected to the feed horn and the low noise converter and guides and guides the movement of at least one of the low noise converter or the feed horn along a path for selectively matching the feed horn to the waveguides. It may include a driving unit for moving at least one of the low noise converter or the feed horn along the guide portion.
  • One side of the feed horn may be provided on the side facing the transfer mechanism on the basis of the center of rotation of the skew compensation mechanism to form a counter weight for balancing the load applied to the skew compensation mechanism.
  • the direction in which the transfer mechanism moves the low noise converter may be formed to intersect the central axis of rotation of the low noise converter or the feed horn by the skew compensation mechanism.
  • the drive unit of the transfer mechanism and the drive unit of the skew compensation mechanism may be formed on the other side with respect to the center of the feed horn.
  • the feed horn is any one of a signal in a Ku band band, a signal in a Ka band band, a circular polarization signal in a Ku band band, a linear polarization signal in a Ku band band, a circular polarization signal in a Ka band band, or a linear polarization signal in a Ka band band. It can receive the signal of.
  • the multi-band signal transmission and reception apparatus can easily transmit and receive a multi-band signal in one device.
  • the multi-band signal transmission and reception apparatus can be formed in a simple and compact structure in one device. Therefore, the multi-band signal transmission and reception apparatus can be easily manufactured and the installation space can be easily secured.
  • the multi-band signal transmission and reception apparatus can transmit and receive the signal of the multi-band in one feed horn, thereby reducing the cost of components by reducing the number of use of the feed horn.
  • the signal transfer unit of the low noise converter realizes gain compensation for signals received in a single feed horn, it is possible to more accurately transfer the multiband signals received in the feed horn to the processing units.
  • the multi-band signal transmission and reception apparatus simply changes the processing unit matched with the feed horn according to the type of the band and polarization of the signal received in the feed horn, thereby easily transmitting and receiving the signal of the multi-band signal. can do.
  • vehicles such as vehicles, aircraft, and ships, can handle all signals in each region even if the signal band passes through different regions.
  • the multi-band signal transmission and reception apparatus automatically prevents skew generated during linear polarization, thereby preventing signal loss, and skewing by rotating a low noise converter using a skew compensation mechanism.
  • the power required for compensation can be reduced.
  • the multi-band signal transmission and reception apparatus can implement the transmission and reception and the skew compensation of the multi-band signal with one low noise converter, thereby improving maintenance convenience.
  • FIG. 1 is a perspective view showing a multi-band signal transmission and reception apparatus according to an embodiment of the present invention
  • FIG. 2 is a side view showing the multi-band signal transmission and reception apparatus shown in FIG.
  • FIG. 3 is a perspective view showing the main part of the multi-band signal transmission and reception apparatus shown in FIG. 1;
  • Figure 4 is an exploded perspective view showing the main portion shown in FIG.
  • FIG. 5 is a perspective view showing an exploded state of the skew compensation mechanism of the main part shown in FIG.
  • FIG. 6 is a plan view showing an example of operation of the main portion shown in FIG.
  • FIG. 7 is a front view showing the main portion shown in FIG.
  • FIG. 8 is a cross-sectional view taken along the cutting line "A-A" in FIG. 6;
  • FIG. 9 is a rear perspective view showing the main portion shown in FIG.
  • FIG. 10 is a plan view showing another example of operation of the main portion shown in FIG.
  • FIG. 11 is a front view showing the main portion shown in FIG.
  • FIG. 12 is a cross-sectional view taken along cut line “B-B” of FIG. 10;
  • FIG. 13 is a rear perspective view showing the main portion shown in FIG.
  • FIG. 14 is a plan view showing another example of operation of the main portion shown in FIG.
  • FIG. 1 is a perspective view showing a multi-band signal transmission and reception apparatus according to an embodiment of the present invention
  • Figure 2 is a side view showing a multi-band signal transmission and reception apparatus shown in Figure 1
  • FIG. 5 is an exploded perspective view showing the skew compensation mechanism of the main part shown in FIG. 3
  • FIG. 6 is shown in FIG. 7 is a front view showing the main portion shown in FIG. 6,
  • FIG. 8 is a sectional view along the cutting line "AA" of FIG. 6,
  • FIG. 9 is a main portion shown in FIG. Back perspective view
  • FIG. 10 is a plan view showing another operation example of the main part shown in FIG. 3, FIG.
  • FIG. 11 is a front view showing the main part shown in FIG. 10,
  • FIG. 12 is a sectional view taken along the cutting line "BB" of FIG. 13 is a rear perspective view showing the main portion shown in FIG. 10,
  • FIG. 3 is a plan view showing another example of the operation of the main part shown in FIG.
  • the multi-band signal transmission and reception apparatus 100 includes a feed horn 110, a low noise converter 120, a transfer mechanism 130, and a skew compensation mechanism 160. It may include.
  • the multi-band signal transceiving apparatus 100 is mainly installed in a moving object such as a ship and receives a signal of a satellite or transmits a signal to a satellite, and may be referred to as a satellite tracking antenna.
  • the multi-band signal transceiving apparatus 100 may transmit and receive signals of a plurality of frequency bands from a plurality of satellites, respectively, as well as transmit and receive signals of circular polarization and linear polarization, respectively. That is, the number of waveguides and processing units to be described later may be determined in the low noise converter 120 according to types of bands and polarizations of signals transmitted and received by a plurality of satellites.
  • the signal received at the feed horn 110 is described as an example of a linearly polarized Ku band signal and a circularly polarized Ka band signal.
  • the case of the linearly polarized Ku band signal and the circularly polarized Ka band are just examples, and various combinations can be made therefor. That is, in detail, the Ku band signal of linear polarization and the Ka band signal of linear polarization, the Ku band signal of circular polarization and the Ka band signal of circular polarization, the Ku band signal of circular polarization and the Ka band signal of linear polarization In one embodiment of the present invention, a description thereof will be omitted for convenience.
  • the Ku band signal and the Ka band signal as described above are signals of a frequency band mainly used for satellite broadcasting. That is, the Ku band signal is a signal in the frequency band from 12 GHz to 18 GHz, and the Ka band signal is a signal in the frequency band from 18 GHz to 30 GHz.
  • the feed horn 110 is a waveguide type antenna, and may perform a function of receiving a multi-band signal from a satellite or transmitting a signal to the satellite.
  • the feed horn 110 may be formed in different diameters or shapes according to the frequency band of the received signal. Specifically, the diameter of the feed horn 110 is formed smaller as the frequency band of the received signal is larger.
  • the diameter of the feed horn for the Ku band signal may be larger than the diameter of the feed horn for the Ka band signal. Since the feed horn 110 of the present embodiment transmits and receives both the Ku band signal and the Ka band signal, the feed horn 110 may be formed with a smaller diameter than the feed horn for the Ku band signal and may be formed with a larger diameter than the feed horn for the Ka band signal. For example, if the diameter of the feed horn for the Ku band signal is 18 mm and the diameter of the feed horn for the Ka band signal is 11 mm, the feed horn of the embodiment of the present invention may be formed to a diameter of 15 mm.
  • the feed horn 110 may be disposed above the low noise converter 120 with the lower portion fixed to the frame 112.
  • the frame 112 may be mounted to the reflector antenna 142 described later.
  • feed horn 110 in one embodiment of the present invention is described as a singular feed horn 110 is used, but is not limited thereto.
  • a few more may be used instead of only one feed horn 110.
  • the plurality of feed horns 110 used in this way may be formed with a different diameter depending on the signal band.
  • the low noise converter 120 is an apparatus for amplifying and frequency converting a signal received at a feed horn 110 into a signal of an intermediate frequency band.
  • the low noise converter 120 may be formed to have a small noise figure.
  • the low noise block down converter (LNB) as described above includes a processor module 122 in which the processors 122a and 122b are formed, a module housing 124 and a module formed to surround the outside of the processor module 122. It may include a signal transmission unit 126 is formed in the housing 124, the waveguides (126a) (126b) through which the signal received by the feed horn 110 passes.
  • the processor module 122 may be formed of one substrate.
  • processors 122a and 122b for processing signals of various frequency bands may be formed in electronic circuits at different positions. These processors 122a and 122b may be included in the low noise converter 120 for processing a signal received by the feed horn 110.
  • processing units 122a and 122b may be disposed adjacent to each other in the processing unit module 122 in at least one of a linear shape, a curved shape, a circular shape, an elliptic shape, or a polygonal shape.
  • two processing units 122a and 122b are disposed to be spaced apart in a straight line as an example.
  • the module housing 124 is a box-shaped member that accommodates the processor module 122 therein and protects the processor module 122 from external impact and external environment.
  • the module housing 124 may be formed by a casting method such as die casting, and the module housing 124 and the signal transmitting unit 126 may be integrally cast.
  • the signal transmission unit 126 receives a signal received by the feed horn 110 and transmits the received signal to any one of the processing units 122a and 122b.
  • the signal transmitter 126 may be formed on an upper portion of the module housing 124 facing the feed horn 110.
  • the signal transmission unit 126 may be formed in a shape that is the same as or similar to the arrangement of the processing units 122a and 122b.
  • the signal is transmitted to the upper portion of the module housing 124 in a shape corresponding to the arrangement of the processing units 122a and 122b, for example, a linear shape, a curved shape, a circular shape, an ellipse shape, or a polygonal shape.
  • Waveguides of the portion 126 may be formed.
  • the waveguides of the signal transmission unit 126 will be described as an example in a case where the waveguides are formed in a linear shape.
  • the signal transmission unit 126 may be formed to protrude upward from the upper portion of the module housing 124 to be movably connected to the lower portion of the feed horn 110.
  • the waveguides 126a and 126b may be formed through the signal transmission unit 126 as described above.
  • the waveguides 126a and 126b may be formed at positions facing the processing units 122a and 122b, respectively.
  • an insertion groove (not shown) may be formed on the upper surface of the signal transmission unit 126 so that the lower portion of the feed horn 110 may be inserted to be movable in the left and right directions. Therefore, the feed horn 110 may be located in communication with any one of the waveguides 126a and 126b in the process of moving along the insertion groove.
  • the waveguides 126a and 126b may be formed to have different cross-sectional areas according to frequency bands of signals transmitted to the processing units 122a and 122b.
  • the waveguides 126a and 126b are formed to have a smaller cross-sectional area as the frequency band of the signal passing through is larger.
  • the cross-sectional area of the waveguide 126b through which the Ku band signal passes may be greater than the cross-sectional area of the waveguide 126a through which the Ka band signal passes.
  • a stepped portion (not shown) may be formed on the inner surface of the waveguide 126a as necessary.
  • the stepped portion may be formed on the tops of the waveguides 126a and 126b to compensate for the rapid cross-sectional area change of the feed horn 110 and the waveguides 126a and 126b. Accordingly, the stepped portion may be formed larger than the cross-sectional areas of the waveguides 126a and 126b and smaller than the cross-sectional areas of the feed horn 110.
  • the stepped portion may perform a function of a transition section for buffering a difference in cross-sectional area between the feed horn 110 and the waveguides 126a and 126b. That is, when the stepped portion is formed in the upper part of the waveguides 126a and 126b through which the signal of the satellite is introduced from the feed horn 110, the signal received by the feed horn 110 is transmitted to the waveguides 126a and 126b. The loss of signal generated can be significantly reduced.
  • polarizers 127a and 127b may be formed in the waveguides 126a and 126b as necessary.
  • the polarizers 127a and 127b are devices for processing a satellite signal having polarization characteristics, and may be formed in different shapes according to polarization characteristics of the signal passing through the waveguides 126a and 126b. That is, although FIG. 7 illustrates the cylindrical polarizer 127a and the stepped plate-shaped polarizer 127b, the shape and implementation method of the polarizer are not limited thereto, and various shapes and implementation methods are determined by the design conditions. Can be applied accordingly.
  • the processing units 122a and 122b must receive a signal in the form of linear polarization. Therefore, if the signal received by the waveguides 126a and 126b is in the form of circular polarization, the signal in the form of circular polarization is converted into the form of linear polarization through the polarizers 127a and 127b. In addition, when the signals received by the waveguides 126a and 126b are in the form of linear polarization, the linearly polarized signals may be directly transmitted to the processing units 122a and 122b without any separate polarizers 127a and 127b. .
  • the low noise converter 120 may include a plurality of connectors 121 and 123. One side of the low noise converter 120 may be provided with a cable clamp 116 for fixing a cable connected to the connectors (121, 123).
  • the transfer mechanism 130 is a device for linearly transferring at least one of the feed horn 110 or the low noise converter 120 according to the band of the signal received by the feed horn 110. .
  • the feed horn 110 is fixed and the low noise converter 120 is described as being transferred by the transfer mechanism 130. That is, the transfer mechanism 130 may transfer the low noise converter 120 along a straight path to match the feed horn 110 with any one of the waveguides 126a and 126b.
  • the reception sensitivity of the feed horn 110 may be affected by the change of the position of the feed horn 110. have. Therefore, it may be more preferable to fix the feed horn 110 and to transfer the low noise converter 120 as in one embodiment of the present invention.
  • the signal of the feed horn 110 is processed to a processing unit capable of processing a signal received by the feed horn 110 among the processing units 122a and 122b. Can be passed. Therefore, since the processing units 122a and 122b of the low noise converter 120 can selectively process the signals of the multi-bands received by the feed horn 110, it is possible to simultaneously transmit and receive the signals of the multi-bands in one device. have.
  • the feed mechanism 130 is a guide portion 132 connected to the feed horn 110 and the low noise converter 120, and a linear portion provided in the guide portion 132 and moving the low noise converter 120 along the guide portion 132.
  • the driving unit 134 may be included.
  • the guide part 132 may be formed to have a structure for guiding the movement of the low noise converter 120 along a straight path for selectively matching the waveguides 126a and 126b and the lower portion of the feed horn 110. That is, when the low noise converter 120 is moved along the guide part 132, the lower part of the feed horn 110 may be moved along the upper part of the signal transmission part 126. In this process, the waveguides 126a and 126b may be selectively matched to the lower portion of the feed horn 110.
  • the guide part 132 may be formed in a shape that guides the low noise converter 120 in a left and right direction along a transfer path corresponding to the arrangement shape of the processing units 122a and 122b, that is, the linear shape.
  • the guide part 132 may be formed in a curved, circular, elliptical, or polygonal transfer path corresponding to the arrangement shape of the processing units 122a and 122b.
  • the guide part 132 as described above may include the first guide protrusion 132a formed under the frame part 112, the guide rod 132c fixed to the first guide protrusion 132a, and the module housing 124. It may include a second guide protrusion (132b) formed on the top and slidingly moved along the guide rod (132c). Accordingly, the low noise converter 120 may be linearly reciprocated in the left and right directions along the guide rod 132c.
  • the guide part 132 may be provided in plurality in the frame part 112 and the module housing 124. Hereinafter, it will be described that the guide portion 132 is disposed in front and rear of the frame 112 and the module housing 124, respectively.
  • a buffer member (not shown) may be disposed at a portion of the first guide protrusion 132a and the second guide protrusion 132b that face each other.
  • the shock absorbing member may cushion the shock due to the collision between the first guide protrusion 132a and the second guide protrusion 132b during the operation of the transfer mechanism 130.
  • the linear drive unit 134 includes a motor bracket 134a disposed under the frame 112, a drive motor 134b disposed on the motor bracket 134a, and a drive motor 134b movably disposed, and the module housing 124. It may include a screw shaft (134c), one end of which is fixed horizontally on the top.
  • the screw shaft 134c is a rod-shaped member having a male screw formed on an outer circumference thereof, and a ball screw or a lead screw may be used. It is also possible to use a linear motor that performs linear motion.
  • the screw shaft 134c may be arranged in a horizontal cantilever shape in a horizontal direction on an axis fixing part (not shown) formed at the side of the signal transmission part 126.
  • the drive motor 134b may be screwed to the male screw of the screw shaft 134c to linearly move in the axial direction of the screw shaft 134c.
  • An elastic member (not shown) for elastically supporting the driving motor 134b may be disposed in the motor bracket 134a and the driving motor 134b.
  • the driving motor 134b is elastically supported by the elastic member as described above, when the driving motor 134b and the screw shaft 134c are screwed together, the driving motor 134b is caused by the backlash of the male screw and the female screw. The fine shaking can be prevented to improve the feeding accuracy.
  • Couplings 134d and 134e are mounted at both ends of the screw shaft 134c, and either end of the coupling 134e is fixed to the flange 134f attached to the signal transmission unit 126 and fixed to the screw shaft 134c. It can support both ends of.
  • any one of the feed horn 110 or the low noise converter 120 may be provided with a positioning protrusion 138, and the other of the feed horn 110 or the low noise converter 120 may have a positioning protrusion 138.
  • Position sensor 139 for detecting the may be provided.
  • the position sensor 139 is disposed in the frame 112 to which the feed horn 110 is fixed, and the positioning protrusion 138 in the signal transmission unit 126 of the low noise converter 120. It will be described as protruding.
  • the position sensor 139 may use various kinds of sensors capable of detecting the positioning protrusion 138, but it will be described as an optical sensor in one embodiment of the present invention. Accordingly, the position where the positioning projection 138 is disposed between the light receiving portion 139a and the light emitting portion 139b of the position sensor 139 can be set as an initial position for controlling the operation of the transfer mechanism 130. That is, the transfer mechanism 130 may be operated after being placed in the initial position of operation.
  • the light receiving unit 139a and the light emitting unit 139b are mounted on the lower surface of the frame 112 and fixed to the sensor fixing member 139c.
  • the positioning projection 138 passing between the light receiving portion 139a and the light emitting portion 139b is fixed to the second guide protrusion 132b to move along the guide rod 132c.
  • the rotation drive unit 164 is located on the lower surface of the frame 112, it may be mounted to the frame 112 by a motor bracket 165 is fixed to the frame 112.
  • the lower surface of the frame 112 may be provided with a cable clamp 116 for fixing the cables connected to the connectors (121, 123).
  • the skew compensation mechanism 160 to compensate for the skew angle that may occur when the low noise converter 120 is rotated by a predetermined angle with respect to the feed horn 110 to receive a linear polarization. ) May be provided.
  • the skew compensation mechanism 160 is provided to contact the inner circumferential surface of the pulley 161 and the pulley 161 fixed to the frame 112 so that the reflector flange to which the reflector antenna 142 is coupled ( 162, a bearing 115 contacting the inner circumferential surface of the reflector flange 162, and an adapter 114 provided to contact the inner circumferential surface of the bearing 115 and coupled to the feed horn 110.
  • the rotation drive unit 164 may include a rotation drive unit 164 for rotating the pulley 161 relative to the adapter 114 and a rotation force transmitting member 163 for transmitting the rotational force of the rotation drive unit 164 to the pulley 161.
  • the rotation force transmitting member 163 may be formed of a timing belt or a chain connecting the pulley 161 and the rotation drive unit 164.
  • the belt guide 113 may be provided to maintain the tension of the timing belt.
  • the rotation force transmitting member 163 may be provided with a rotation amount detection sensor 170 for detecting the rotation amount of the rotation drive unit 164, pulley 161 or polarizers (127a, 127b).
  • the rotation amount sensor 170 detects the degree of rotation of the rotation force transmitting member 163 by the rotation force of the rotation driver 164 to control the rotation angle of the feed horn 110 or the low noise converter 120 by a controller (not shown). Can be delivered to.
  • the rotation amount detecting sensor 170 may be provided with a plurality of rotation amount detecting protrusions 171 and 172 as shown in FIG. 6.
  • the rotation amount detecting sensor 170 may include a plurality of rotation amount detecting protrusions 171 and 172 formed therein and an optical sensor that recognizes positions of the rotation amount detecting protrusions 171 and 172 according to the amount of rotation of the rotation force transmitting member 163. have.
  • the transfer mechanism 130 and the skew compensation mechanism 160 By providing the transfer mechanism 130 and the skew compensation mechanism 160, a large load may be applied to the reflector flange 162 which is fastened and fixed to the reflector antenna 142. As a result, the skew compensation mechanism 160 operates smoothly. It may not rotate. In order to prevent this, the counter weight 190 may be installed on the side of the skew compensation mechanism 160 facing the transfer mechanism 130. Referring to FIG. 5, since the low noise converter 120 and the transfer mechanism 130 are located on the same side with respect to the rotation center of the pulley 161, the low noise converter 120 and the transfer mechanism 130 are mounted on the bearing 115. The eccentric load may be applied due to the load of, and thus the life of the bearing 115 may be shortened.
  • the counter weight 190 may adjust its weight according to the load of the low noise converter 120 and the transfer mechanism 160.
  • FIG. 5 a state in which the low noise converter 120 and the transfer mechanism 130 are located in front of the rotation center of the pulley 161 and the counter weight 190 is located in the rear thereof is illustrated.
  • a ball bearing is used as the bearing 115, and in some cases, an oilless bearing that does not require a separate lubricant may be used.
  • the multi-band signal transmission and reception apparatus 100 according to an embodiment of the present invention to the satellite tracking antenna is a radome 140, the lower radome 141, the reflector antenna 142, the antenna supporter ( 144, and a position adjustment mechanism 146.
  • the radome 140 is a member forming the appearance of the multi-band signal transmission and reception device 100, the reflector antenna 142, feed horn 110, low noise converter 120, the transfer mechanism 130, the antenna supporter 144 , The position adjusting mechanism 146 and the skew compensation mechanism 160 are accommodated therein.
  • the radome 140 may be rotatably disposed at the place where the multi-band signal transmission and reception apparatus 100 is installed.
  • the reflector antenna 142 is an auxiliary antenna for reflecting a signal received from the outside to the feed horn 110 to improve the reception sensitivity of the feed horn 110.
  • a parabolic antenna is used as the reflector antenna 142.
  • the antenna supporter 144 is a member formed in the radome 140 to rotatably support the reflector antenna 142 and the feed horn 110. One end of the antenna supporter 144 may be rotatably connected to at least one of the reflector antenna 142 and the feed horn 110. Hereinafter, one end of the antenna supporter 144 will be described as being connected to the reflector antenna 142.
  • the position adjusting mechanism 146 is provided in the antenna supporter 144 and adjusts its position so that the reflector antenna 142 and the feed horn 110 can track the satellite, and the position provided in the antenna supporter 144 is provided.
  • Position adjustment mechanism 146 according to an embodiment of the present invention may have a two-axis or three-axis drive structure.
  • FIG. 6 to 9 illustrate a state in which the feed horn 110 and the waveguide 126a positioned on the right side of the waveguides of the signal transmission unit 126 coincide with each other. More specifically, referring to FIG. 8, it can be seen that the center hole of the adapter 115 to which the feed horn 110 is mounted and the waveguide 126a on the right side communicate with each other.
  • FIGS. 10 to 13 it can be seen that the center hole of the adapter 115 on which the feed horn 110 is mounted and the waveguide 126b positioned on the left side of the waveguide of the signal transmission unit 126 coincide with each other. More specifically, referring to FIG. 12, it can be seen that the low noise converter 120 is moved to the right side by the transfer mechanism 130 such that the feed horn 110 and the waveguide 126b coincide with each other.
  • a multi-band signal transmission apparatus 100 or a moving object such as a ship equipped with a satellite tracking antenna receives a Ku-band satellite signal, as shown in FIGS. While the waveguide 126a on the right side is matched to process the Ku band signal, while the moving object moves and is in a position to receive the Ka band satellite signal, the transfer mechanism 130 operates to feed the horn 110. ) And the left waveguide 126b coincide with each other to process the Ka band signal.
  • the low noise converter 120 needs to be rotated by a skew angle to ensure skew.
  • the skew compensation mechanism 160 operates to operate the low noise converter 120. It can be rotated to compensate for skew angles.
  • FIG. 14 shows a state in which the low noise converter 120 is rotated by the operation of the skew compensation mechanism 160.
  • the feed horn 110 and the waveguide 126a on the right side coincide with each other, but compared with FIG. 6, the reflector flange 162 to which the reflector antenna 142 is coupled and fixed is rotated by a predetermined angle. It can be seen that.
  • the feed horn 110 and the waveguide 126b on the left side coincide with each other, but compared with FIG. 10, the reflector flange 162 to which the reflector antenna 142 is coupled and fixed has a predetermined angle. It can be seen that it is rotated.
  • the skew compensation mechanism 160 when the signal transmitted from the satellite is a satellite signal having an arbitrary linear polarization, the satellite signal polarization and the multi-band signal transmission / reception apparatus 100 according to an embodiment of the present invention are provided.
  • the low noise converter 120 is automatically compensated by rotating the skew angle, thereby preventing the loss of the received satellite signal according to the skew angle.
  • the direction of the movement path in which the low noise converter 120 is moved by the transfer mechanism 120 is a rotation in which the low noise converter 120 or the feed horn 110 is rotated by the skew compensation mechanism 160. It may be formed to intersect the central axis.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

L'invention concerne un émetteur-récepteur de signal multibande permettant de transmettre et recevoir simultanément un signal multibande dans un dispositif, et qui peut en outre compenser un angle d'inclinaison qui survient dans la réception d'ondes à polarisation linéaire. Par ailleurs, l'émetteur-récepteur de l'invention peut automatiquement commander un emplacement d'un cornet d'alimentation en fonction de la sensibilité de réception du cornet d'alimentation, et peut, en outre, associer de façon appropriée le cornet d'alimentation et des unités de traitement en fonction d'une bande d'un signal reçu par le cornet d'alimentation.
PCT/KR2010/002289 2010-02-11 2010-04-14 Émetteur-récepteur de signal multibande WO2011099672A1 (fr)

Applications Claiming Priority (2)

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KR10-2010-0013044 2010-02-11
KR1020100013044A KR101117194B1 (ko) 2010-02-11 2010-02-11 다중 대역 신호 송수신 장치

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2014035824A1 (fr) * 2012-08-27 2014-03-06 Kvh Industries, Inc. Système d'antenne à émetteurs-récepteurs distribués intégrés
US9281561B2 (en) 2009-09-21 2016-03-08 Kvh Industries, Inc. Multi-band antenna system for satellite communications
CN106099364A (zh) * 2016-08-03 2016-11-09 成都锦江电子系统工程有限公司 一种高精度多馈源全自动换馈系统
GB2573175A (en) * 2018-04-19 2019-10-30 Microelectronics Tech Inc Low noise block down-converter, housing structure thereof, and assembly method thereof

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KR101335985B1 (ko) * 2012-04-30 2013-12-03 (주)인텔리안테크놀로지스 이동체 탑재용 위성 추적 안테나
KR101404195B1 (ko) * 2012-10-05 2014-06-05 (주)인텔리안테크놀로지스 프리셋 밸런서를 구비한 위성 통신용 안테나
KR101442766B1 (ko) * 2012-10-05 2014-09-23 (주)인텔리안테크놀로지스 컨버터블 모듈을 구비한 위성 통신용 안테나
WO2014054895A1 (fr) * 2012-10-05 2014-04-10 (주)인텔리안테크놀로지스 Antenne pour communication par satellite comprenant un module convertible
CN109638463A (zh) * 2018-12-19 2019-04-16 航天恒星空间技术应用有限公司 一种Ku波段收发组件和基于该组件的馈源

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KR100188197B1 (ko) * 1995-11-13 1999-06-01 전주범 위성안테나용 lnb의 위치조정장치
KR20020028552A (ko) * 2000-10-10 2002-04-17 권태인 천체를 이용하여 공차를 보정하고 설치하는 위성안테나 및그 설치방법
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US9281561B2 (en) 2009-09-21 2016-03-08 Kvh Industries, Inc. Multi-band antenna system for satellite communications
WO2014035824A1 (fr) * 2012-08-27 2014-03-06 Kvh Industries, Inc. Système d'antenne à émetteurs-récepteurs distribués intégrés
US9520637B2 (en) 2012-08-27 2016-12-13 Kvh Industries, Inc. Agile diverse polarization multi-frequency band antenna feed with rotatable integrated distributed transceivers
US9966648B2 (en) 2012-08-27 2018-05-08 Kvh Industries, Inc. High efficiency agile polarization diversity compact miniaturized multi-frequency band antenna system with integrated distributed transceivers
CN106099364A (zh) * 2016-08-03 2016-11-09 成都锦江电子系统工程有限公司 一种高精度多馈源全自动换馈系统
GB2573175A (en) * 2018-04-19 2019-10-30 Microelectronics Tech Inc Low noise block down-converter, housing structure thereof, and assembly method thereof

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KR20110093165A (ko) 2011-08-18
KR101117194B1 (ko) 2012-03-07

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