CN109755705B - Duplexer, ground station outdoor unit and radio frequency front-end transceiver module - Google Patents
Duplexer, ground station outdoor unit and radio frequency front-end transceiver module Download PDFInfo
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- CN109755705B CN109755705B CN201910215679.9A CN201910215679A CN109755705B CN 109755705 B CN109755705 B CN 109755705B CN 201910215679 A CN201910215679 A CN 201910215679A CN 109755705 B CN109755705 B CN 109755705B
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- 230000017525 heat dissipation Effects 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 13
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 230000010354 integration Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000009792 diffusion process Methods 0.000 description 1
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Abstract
The utility model provides a duplexer, ground station outdoor unit and radio frequency front end transceiver module, the receiving input mouth and the transmission delivery outlet of duplexer are connected respectively in the combination output waveguide mouth both sides of duplexer, receiving input mouth and transmission delivery outlet are located the coplanar, combination output waveguide mouth perpendicular to receiving input mouth and the plane setting that the transmission delivery outlet is located, the low noise down converter is connected and is received the input mouth, the transmission delivery outlet is connected to the frequency conversion power amplifier, ground station outdoor unit disposes on the roof, the roof bottom symmetrical arrangement has a pair of radiating element, radiating element includes the radiating tooth of array and is located the fan of radiating tooth initiating terminal, the terminal of radiating tooth is towards the offside in protruding chamber. Through the integrated design of the duplexer structure and the outdoor unit and the heat dissipation design of the transceiver module, the volume and the rotation height are greatly reduced, the flattening of the satellite communication ground station end is effectively realized, and a foundation is provided for portability.
Description
Technical Field
The invention belongs to satellite communication, relates to a ground station end of a satellite communication system, and particularly relates to a duplexer, a ground station outdoor unit and a radio frequency front-end transceiver module.
Background
At the ground station end of the satellite communication system, an up-conversion power amplifier BUC and a low noise down-converter LNB are important components thereof. The conventional ground terminal station mainly comprises a reflecting surface antenna, a duplexer, an up-conversion power amplifier BUC, a low noise down-converter LNB and an Indoor Unit indicator Unit, and a specific system block diagram is shown in figure 1. The structure has the defects of large volume, inconvenient carrying, multiple structural redundancy and the like, and is unfavorable for the development of high integration of the video front end.
Meanwhile, in the conventional structure, the rf front-end part, i.e., the Outdoor Unit structure, as shown in fig. 2, is composed of three separate parts, i.e., a duplexer 01, an up-conversion power amplifier BUC 03, and a low noise down-converter LNB 02, and the temperature-sensitive LNB 02 is independent from the BUC 03 with larger heat consumption when assembled, and a separate heat dissipation structure 04 is configured to satisfy the heat dissipation of the BUC 03, and the performance change thereof is mainly affected by the external environmental temperature. The basic structure and the connection mode are complicated, and as can be seen from fig. 2, when the duplexer rotates, the overall rotation height h is obviously too high, the rotation radius is too large, and the development requirements of miniaturization and integration of the satellite communication ground station end cannot be met.
Disclosure of Invention
The invention provides a duplexer, an outdoor unit of a ground station and a radio frequency front-end transceiver module, which are used for solving the problems.
The invention is realized by the following technical scheme:
the utility model provides a duplexer, its characterized in that, the receiving input mouth and the transmission delivery outlet of duplexer are connected respectively in the combination output waveguide mouth both sides of duplexer, and receiving input mouth and transmission delivery outlet are located the coplanar, and combination output waveguide mouth is perpendicular to receiving input mouth and the plane setting that the transmission delivery outlet was located.
The combined output waveguide port is connected with the receiving input port through the folded receiving channel body, and the combined output waveguide port is connected with the transmitting output port through the folded transmitting channel body.
An outdoor unit for a ground station comprising a low noise down converter, an up-conversion power amplifier, and said diplexer, wherein the low noise down converter is connected to a receive input port and the up-conversion power amplifier is connected to a transmit output port.
The radio frequency front-end transceiver module is characterized by comprising a bottom plate and a ground station outdoor unit arranged on the bottom plate, wherein the ground station outdoor unit is arranged in a cavity of the bottom plate, and the lower part of a combined output waveguide port extends out of the cavity.
One side of the top plate is provided with a protruding cavity communicated with the cavity, the lower part of the low-noise down converter is positioned in the cavity, and the upper part of the low-noise down converter is positioned in the protruding cavity.
The up-conversion power amplifier comprises an up-conversion power amplifier circuit substrate and an amplifier chip arranged on the circuit substrate, and a heat conduction pipe for guiding heat of the amplifier chip to the other side is arranged in the cavity.
A pair of radiating units are symmetrically arranged at the top of the bottom plate, each radiating unit comprises radiating teeth of an array and a fan positioned at the starting end of each radiating tooth, and the tail ends of the radiating teeth face to the opposite sides of the protruding cavity.
The amplifier chip is located under one of the heat dissipation teeth, one end of the heat conduction pipe is connected to the amplifier chip, and the other end of the heat conduction pipe is connected to the lower portion of the other heat dissipation tooth.
Further, still include with bottom plate complex roof, preceding curb plate, posterior lateral plate, left side board, right side board, the bottom plate top is equipped with a plurality of stands, be equipped with a plurality of and roof complex pilot hole on the stand, be equipped with the fresh air inlet on left side board, the right side board, be equipped with the apopore on the roof. The air outlet is positioned above the tail end of the radiating tooth, and the air inlet is positioned on the air inlet side of the fan.
The beneficial effects of the invention are as follows:
1. compared with the traditional duplexer structure, the receiving input port and the transmitting output port are innovatively connected to two sides of the combined output waveguide port of the duplexer respectively, and the combined output waveguide port is perpendicular to the plane where the receiving input port and the transmitting output port are located, so that the unfolding volume of the duplexer is greatly reduced, the rotation height h taking the combined output waveguide port as the axis is greatly reduced, the integral turning radius can be effectively reduced, and the integration and flattening are facilitated; the folded channel body design is arranged, the unfolded volume is further reduced, the receiving input port and the transmitting output port are furthest apart under the condition of small volume while the link length is effectively ensured, the interference is avoided, and the influence of heat consumption on the LNB with extremely sensitive temperature is avoided;
2. compared with the traditional outdoor unit with separated components, the LNB, the BUC and the duplexer are reasonably and effectively integrated, the LNB and the BUC are connected and integrated on the duplexer respectively through the structural design of the duplexer, the circuit substrate of the BUC is parallel to the plane where the receiving input port and the transmitting output port are located, the integrated whole volume of the outdoor unit is effectively ensured to be small enough, the whole height is further controlled, and the flattening design of the outdoor unit is realized;
3. in the process of assembling and forming the radio frequency front-end transceiver module, a special shell design and a heat dissipation design are further made for an integrated, flattened and stable and effective operation system; through the design of the cavity and the protruding cavity, the outdoor unit is effectively assembled on the basis of flattening; the heat conducting pipe is designed and configured in the cavity, so that the power consumption heat of the BUC is effectively guided, excessive concentration is avoided, and balanced heat dissipation is improved; further, on the basis, a pair of radiating teeth which incline towards the opposite sides of the protruding cavity are arranged for the bottom plate, so that the radiating area is increased, and meanwhile, a fan for increasing the convection heat exchange effect is arranged, so that the effects of natural convection and active convection are enhanced; further, for admitting air and giving vent to anger and the heat extraction, reasonable design does benefit to air current transmission's air intake and air outlet, ensures the radiating effect, makes the complete machine that integrates can keep stable when the operation, reaches satellite communication's requirement.
4. According to the scheme, under the condition that the previous 1-3 beneficial effects are integrated, the problems of huge volume, portability, complex structure, redundancy and the like in the prior art are effectively solved, and on the basis of the design of a duplexer, the integrated configuration of an outdoor unit and the overall structure design of a module, the high integration, portability and simplicity in installation of the radio frequency front end of the ground station end of a satellite communication system are comprehensively realized, and the overall height of the module can be controlled below 45 mm.
Drawings
Fig. 1 is a block diagram of a conventional satellite communication system ground station side system architecture.
Fig. 2 is an example structural diagram of a conventional ground station outdoor unit.
Fig. 3 is a schematic diagram (inverted view) of a duplexer structure provided in the present invention.
Fig. 4 is a schematic diagram of an internal structure of a rf front-end transceiver module according to the present invention.
Fig. 5 is an overall appearance structure diagram of the rf front-end transceiver module of the present invention.
Fig. 6 is a connection structure diagram of an outdoor unit of a ground station according to the present invention.
Detailed Description
As shown in fig. 3, a specific embodiment of a duplexer provided by the present invention is:
the receiving input port 22 and the transmitting output port 23 of the duplexer 20 are respectively connected to two sides of the combined output waveguide port 21 of the duplexer 20, and the combined output waveguide port 21 is vertically arranged and is positioned in the center of the duplexer 20. The receiving input port 22 and the transmitting output port 23 are positioned on the same plane, and the combined output waveguide port 21 is arranged perpendicular to the plane on which the receiving input port 22 and the transmitting output port 23 are positioned.
Specifically, the receiving input port 22 and the transmitting output port 23 may be provided at both ends of a straight line centered on the combined output waveguide port 21 so as to be kept as far apart as possible from the receiving input port 22 and the transmitting output port 23 when the module is assembled.
The output waveguide port 21 is connected to the receiving input port 22 through a folded receiving channel body 24, and the combined output waveguide port 21 is connected to the transmitting output port 23 through a folded transmitting channel body 25. Specifically, the folded receiving channel body 24 is a connector with a receiving communication link inside, and the folded transmitting channel body 25 is a connector with a transmitting communication link inside, so that a sufficient link length can be effectively ensured by the folded layout, and the distance between the receiving input port 22 and the transmitting output port 23 expanding to two sides can be reduced.
Specifically, the structure shown in fig. 3 is a three-dimensional example diagram of a duplexer of a ku band 16W transceiver.
By vertically arranging the combined output waveguide ports 21 in combination with the folded layout, a foundation is effectively made for miniaturization and integration. Through the mode of vertical arrangement, the rotation height h can be effectively controlled to be flat, and the space utilization rate is greatly improved.
Fig. 6 shows a specific embodiment of an outdoor unit for a ground station according to the present invention:
a ground station outdoor unit includes a low noise down converter 3, an up-conversion power amplifier, and a duplexer 20. The receiving input port 22 and the transmitting output port 23 of the duplexer 20 are respectively connected to two sides of the combined output waveguide port 21 of the duplexer 20, and the combined output waveguide port 21 is vertically arranged and is located at the center of the duplexer 20. The receiving input port 22 and the transmitting output port 23 are positioned on the same plane, and the combined output waveguide port 21 is arranged perpendicular to the plane on which the receiving input port 22 and the transmitting output port 23 are positioned. The low noise down converter 3 is connected to the receive input 22 and the up conversion power amplifier is connected to the transmit output 23.
Specifically, the diplexer 20 may be implemented using the embodiments described above.
Specifically, the up-conversion power amplifier includes an amplifier circuit board 40 and an amplifier chip 41 that are used together. The amplifier circuit board 40 may be disposed above the top of the combined output waveguide port 21, parallel to the plane of the receiving input port 22 and the transmitting output port 23, with a miniaturized arrangement.
In this scheme, effectively make low noise down converter 3, up conversion power amplifier and duplexer 20 effectual integration, design into a flat outdoor unit, compare in traditional system as shown in fig. 2 for the complete machine assembly is simplified, has reduced the structural redundancy in the design, is favorable to the complete machine weight to further alleviate.
As shown in fig. 4 to 6, the specific embodiment of a radio frequency front end transceiver module provided by the present invention is as follows:
the radio frequency front end transceiver module comprises a base plate 10 and a ground station outdoor unit arranged on the base plate 10, wherein the ground station outdoor unit is arranged in a cavity of the base plate 10, and the lower part of a combining output waveguide port 21 extends out of the cavity.
As a specific embodiment, a protruding cavity 17 is formed on one side of the base plate 10 and is communicated with the cavity, the lower part of the low-noise down converter 3 is located in the cavity, and the upper part is located in the protruding cavity 17.
As a specific embodiment, the up-conversion power amplifier includes an up-conversion power amplifier circuit board 40 and an amplifier chip 41 provided on the circuit board 40, and a heat conduction pipe 7 for guiding heat of the amplifier chip 41 to the other side is provided in the cavity.
As a specific embodiment, a pair of heat dissipating units are symmetrically arranged on top of the base plate 10, and each heat dissipating unit includes an array of heat dissipating teeth 50 and a fan 51 positioned at a start end of the heat dissipating teeth 50, and an end of the heat dissipating teeth 50 faces opposite sides of the protruding cavity 17.
As a specific embodiment, the amplifier chip 41 is located below one of the heat dissipation teeth 50, and the heat conduction pipe 7 has one end connected to the amplifier chip 41 and the other end connected to the other heat dissipation tooth 50.
As a specific embodiment, the module further comprises a top plate 11, a front side plate 13, a rear side plate 14, a left side plate 15 and a right side plate 12 which are matched with the bottom plate 10, so that a complete module with a shell is formed. A radio frequency transceiver interface 16 is disposed on the left side plate 15 or the right side plate 12, and as shown in the present embodiment, is disposed at the left side plate 15.
The top of the bottom plate 10 is provided with a plurality of upright posts 18, a plurality of assembly holes matched with the top plate 11 are formed in the upright posts 18, air inlet holes 121 are formed in the left side plate 15 and the right side plate 12, and air outlet holes 111 are formed in the top plate 11. The air outlet 111 is located above the end of the heat dissipating tooth 50, and the air inlet 121 is located on the air inlet side of the fan 51.
In the highly integrated process, a power amplifier with power consumption of about 50W and a low-noise down converter very sensitive to the ambient temperature are integrated in the same shielded metal cavity, and new heat dissipation requirements are generated. The heat dissipation generated by the power amplifier is diffused and conducted to a far position through the buried heat conducting pipe, so that the heat diffusion in the whole machine is accelerated, the heat dissipation teeth are additionally arranged, the heat dissipation area is further increased, and meanwhile, the temperature of the heat dissipation teeth is actively reduced by being matched with the fan. The scheme can ensure long-time reliable operation of the whole machine, and meanwhile, the performance of the low-noise down converter is not affected basically.
It should be understood that the foregoing description is only of the embodiments of the present invention and is not intended to limit the scope of the invention, but any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a duplexer, its characterized in that, receive input port (22) and the transmission delivery outlet (23) of duplexer connect respectively in the both sides of the output waveguide mouth (21) of combining of duplexer, receive input port (22) and transmission delivery outlet (23) are located the coplanar, the output waveguide mouth (21) of combining is perpendicular to receive input port (22) and the plane setting that the transmission delivery outlet (23) were located, receive input port (22) are connected through the receipts passageway body (24) of folding, output waveguide mouth (21) of combining connects transmission delivery outlet (23) through the transmission passageway body (25) of folding, the distance that receive input port (22) and transmission delivery outlet (23) are expanded to both sides is used for reducing when guaranteeing the link length to folding receipt passageway body (24) and folding transmission passageway body (25).
2. A ground station outdoor unit comprising a low noise down converter (3), an up-conversion power amplifier, and a diplexer as claimed in claim 1, the low noise down converter (3) being connected to the receive input port (22), the up-conversion power amplifier being connected to the transmit output port (23).
3. A radio frequency front-end transceiver module, characterized by comprising a base plate (10) and the ground station outdoor unit according to claim 2 arranged on the base plate (10), wherein the ground station outdoor unit is arranged in a cavity of the base plate (10), and the lower part of a combined output waveguide port (21) extends out of the cavity.
4. A radio frequency front-end transceiver module as claimed in claim 3, characterized in that a protruding cavity (17) is provided on one side of the base plate (10) and is in communication with the cavity, the lower part of the low noise down converter (3) being located in the cavity, and the upper part being located in the protruding cavity (17).
5. The radio frequency front-end transceiver module according to claim 4, characterized in that the up-conversion power amplifier comprises an up-conversion power amplifier circuit substrate (40) and an amplifier chip (41) provided on the circuit substrate (40), and a heat conduction pipe (7) for guiding heat of the amplifier chip (41) to the other side is provided in the cavity.
6. The radio frequency front end transceiver module according to claim 5, characterized in that a pair of heat dissipating units are symmetrically arranged on top of the base plate (10), the heat dissipating units comprise an array of heat dissipating teeth (50) and a fan (51) located at the start end of the heat dissipating teeth (50), and the tail end of the heat dissipating teeth (50) faces to the opposite side of the protruding cavity (17).
7. The radio frequency front-end transceiver module according to claim 6, characterized in that the amplifier chip (41) is located under one of the heat dissipating teeth (50), and that the heat conducting tube (7) is connected at one end to the amplifier chip (41) and at the other end to the other heat dissipating tooth (50).
8. The radio frequency front-end transceiver module according to claim 6, further comprising a top plate (11) matched with the bottom plate (10), a front side plate (13), a rear side plate (14), a left side plate (15) and a right side plate (12), wherein a plurality of stand columns (18) are arranged at the top of the bottom plate (10), a plurality of assembly holes matched with the top plate (11) are arranged on the stand columns (18), air inlet holes (121) are formed in the left side plate (15) and the right side plate (12), and air outlet holes (111) are formed in the top plate (11).
9. The radio frequency front end transceiver module of claim 8, characterized in that the air outlet (111) is located above the end of the heat dissipating tooth (50), and the air inlet (121) is located on the air inlet side of the fan (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910215679.9A CN109755705B (en) | 2019-03-21 | 2019-03-21 | Duplexer, ground station outdoor unit and radio frequency front-end transceiver module |
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| CN201910215679.9A CN109755705B (en) | 2019-03-21 | 2019-03-21 | Duplexer, ground station outdoor unit and radio frequency front-end transceiver module |
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| CN109755705A CN109755705A (en) | 2019-05-14 |
| CN109755705B true CN109755705B (en) | 2023-12-19 |
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