CN213094185U - Miniaturized Ka/Ku frequency range transmitter - Google Patents
Miniaturized Ka/Ku frequency range transmitter Download PDFInfo
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- CN213094185U CN213094185U CN202021705096.9U CN202021705096U CN213094185U CN 213094185 U CN213094185 U CN 213094185U CN 202021705096 U CN202021705096 U CN 202021705096U CN 213094185 U CN213094185 U CN 213094185U
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Abstract
A miniaturized Ka/Ku band transmitter, comprising: the dual-band frequency synthesis module is used for providing local oscillation signals of a Ka frequency band or a Ku frequency band; the dual-band frequency conversion module is used for up-converting the input S-band excitation signal to a Ka frequency band or a Ku frequency band according to the local oscillation signal and amplifying and outputting the filtered radio frequency small signal; the Ka frequency band assembly module is used for improving the linearity of the radio-frequency signal of the Ka frequency band after the up-conversion, amplifying the radio-frequency signal to preset output power, and outputting the radio-frequency signal after the detection through forward and reverse coupling; the Ku frequency band assembly module is used for amplifying the Ka frequency band radio-frequency signal subjected to up-conversion to preset output power, performing radio-frequency harmonic suppression, and outputting the signal after forward and reverse coupling detection; and the power supply module is arranged at a position with a preset distance from the other side wall of the dual-band frequency synthesis module in the length direction. The integrated medium frequency power amplifier is integrated in a cavity, converts the medium frequency signals transmitted by the channel machine to the required Ka working frequency band and Ku working frequency band for power amplification, has compact structure, and realizes miniaturization, diversification and integration.
Description
Technical Field
The utility model belongs to the communication field especially relates to a miniaturized Ka/Ku frequency channel transmitter.
Background
Along with the development and the application demand of airborne radar technology, the requirement to equipment volume and weight is more and more rigorous, even if slight volume and weight difference, all will influence other designs of whole carrier, if can further realize miniaturization, lightweight, integrate in the aspect of the volume and the weight of relevant equipment of radar, then will not only wholly provide more nimble, more excellent design basis to airborne radar equipment to do benefit to the design of other performances of carrier and provide more space expansion possibility.
Most of the existing airborne radar communication equipment only can consider a single frequency band, and cannot meet the use requirement under the condition of needing wider application; meanwhile, the existing Ku frequency band power amplifier or Ka frequency band power amplifier is relatively independent, and has larger volume respectively, the module integration degree is not high, the problems of non-ideal space utilization rate and the like are solved, and the heat dissipation is to be improved.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned relevant prior art not enough, the utility model provides a miniaturized Ka/Ku frequency channel transmitter combines module, dual-band frequency conversion module, linearization drive module, power module, monitoring control module and dual-band power amplifier module etc. to dual-band frequency and integrates in a cavity, and the intermediate frequency signal frequency that sends the channel machine carries out power amplification to required Ka working frequency channel and Ku working frequency channel, and compact structure has realized the miniaturization, pluralism, integrates.
In order to realize the purpose of the utility model, the following scheme is proposed:
a miniaturized Ka/Ku band transmitter, comprising:
the dual-band frequency synthesis module is used for providing local oscillation signals of a Ka frequency band or a Ku frequency band;
the dual-band frequency conversion module is vertically arranged below the dual-band frequency synthesis module, is connected with the dual-band frequency synthesis module, and is used for up-converting an input S-band excitation signal to a Ka frequency band or a Ku frequency band according to a local oscillator signal and amplifying and outputting a filtered radio frequency small signal;
the Ka frequency band assembly module is arranged at a position which has a preset distance with one side wall in the length direction of the dual-band frequency synthesis module, is connected with one output port of the dual-band frequency conversion module, and is used for improving the linearity of the up-converted Ka frequency band radio-frequency signal, amplifying the up-converted Ka frequency band radio-frequency signal to preset output power and outputting the amplified Ka frequency band radio-frequency signal after forward and reverse coupling detection;
the Ku frequency band assembly module is arranged at a position which has a preset distance with one end wall of the dual-band frequency synthesis module in the length direction, is connected with the other output port of the dual-band frequency conversion module, and is used for amplifying the Ku frequency band radio-frequency signal subjected to up-conversion to preset output power, carrying out radio-frequency harmonic suppression and outputting the radio-frequency harmonic signal after forward and reverse coupling detection; and
and the power supply module is arranged at a position which has a preset distance with the other side wall in the length direction of the dual-band frequency synthesis module and is used for providing required voltage or current for each module.
Further, the box body is square;
the dual-band frequency synthesis module is overlapped with the dual-band frequency conversion module; the dual-band frequency synthesis module, the power supply module and the Ka frequency band assembly module are arranged in parallel in the length direction and are perpendicular to the length direction of the Ku frequency band assembly module;
the dual-band frequency synthesis module, the dual-band frequency conversion module, the Ka frequency band assembly module, the Ku frequency band assembly module and the power module form a square whole body and are accommodated in the box body.
Furthermore, one side wall of the Ku frequency band assembly module in the length direction correspondingly faces to a first peripheral side wall of the box body, and the other side wall correspondingly faces to one end wall of the dual-band frequency synthesis module in the length direction and a first side of the Ka frequency band assembly module;
one end wall in the length direction of the Ku frequency band assembly module correspondingly faces to the second peripheral side wall of the box body, and the other end wall correspondingly faces to one side wall in the length direction of the power supply module;
the other end wall of the dual-band frequency synthesis module in the length direction correspondingly faces to the third circumferential side wall of the box body;
the Ka frequency band assembly module is positioned in the area between the other side wall in the length direction of the Ku frequency band assembly module, one side wall in the length direction of the dual-band frequency synthesis module, and the second peripheral side wall and the third peripheral side wall of the box body;
the power module is positioned in the fourth side wall, the first side wall and the third side wall of the box body, and the other end wall of the Ku frequency band assembly module in the length direction and the other side wall of the dual-band frequency synthesis module in the length direction.
Furthermore, the Ka frequency band assembly module comprises a Ka linearization driving module, a Ka band power amplification module and a Ka band coupling detection module which are sequentially connected, wherein the Ka linearization driving module is connected with one output port of the dual-band frequency conversion module;
the Ka linearization driving module is used for improving the linearity index of the Ka frequency band;
the Ka-band power amplification module is used for amplifying the improved Ka-band radio-frequency signal to preset output power;
and the Ka-band coupling detection module is used for performing forward and reverse coupling detection on the amplified Ka-band radio-frequency signal and outputting the amplified Ka-band radio-frequency signal.
Further, the Ka-band linear driving module is arranged on one side of the Ka-band power amplification module, and the Ka-band coupling detection module is arranged on the opposite side of the Ka-band power amplification module;
the output waveguide port of the Ka-band linear driving module is in butt joint with the waveguide input port of the Ka-band power amplification module, and the waveguide output port of the Ka-band power amplification module is connected with the waveguide input port of the Ka-band coupling detection module.
Further, Ka wave band power amplifier module includes:
a Ka frequency band synthesis network; and
and the plurality of Ka final-stage transmitters are arranged on the bottom surface of the Ka frequency band synthesis network and are connected with the Ka frequency band synthesis network.
Furthermore, the Ku frequency band assembly module comprises a Ku band power amplifier module, a Ku band waveguide filter and a Ku band coupling detection module which are sequentially connected, wherein the Ku band power amplifier module is connected with the other output port of the two-band frequency conversion module;
the Ku band power amplification module is used for amplifying the Ku band radio-frequency signal subjected to up-conversion to preset output power;
the Ku waveband waveguide filter is used for carrying out radio frequency harmonic suppression on the amplified Ku frequency band radio frequency signal;
and the Ku band coupling detection module is used for carrying out forward and reverse coupling detection on the Ku band radio-frequency signal subjected to harmonic suppression and then outputting the Ku band radio-frequency signal.
Furthermore, one end of the Ku-band waveguide filter in the length direction is vertically connected with one end of the Ku-band power amplifier module, and the other end of the Ku-band waveguide filter in the length direction is connected with the Ku-band coupling detection module;
and the opposite end of the Ku waveband power amplifier module is connected with the other output port of the dual-waveband frequency conversion module through a radio frequency cable.
Further, the Ku band power amplifier module includes:
one end of the Ku frequency band synthesis network is vertically connected with one end of the Ku wave band waveguide filter in the length direction;
a plurality of Ku final-stage transmitters arranged on the bottom surface of the Ku frequency band synthesis network; and
the wave is transferred and arranged on the top surface of the other end of the Ku frequency band synthesis network.
Further, still include: the temperature equalizing plate is arranged in the box body; the Ka frequency range assembly module and the Ku frequency range assembly module are arranged on the temperature equalizing plate through the heat conducting pad.
Further, still include: the monitoring control module is arranged on one end wall of the power module in the length direction, the other side wall of the dual-band frequency synthesis module in the length direction, and the region between the third peripheral side wall and the fourth peripheral side wall of the box body, is used for monitoring the working state of each module in real time, and is matched with an upper computer to realize remote monitoring, fault positioning and safety protection.
The beneficial effects of the utility model reside in that:
1. the dual-band frequency synthesis module, the dual-band frequency conversion module, the linearization driving module, the power supply module, the monitoring control module, the dual-band power amplification module and the like are integrated in a cavity, and the intermediate frequency signal sent by the channel machine is converted to the required Ka working frequency band and Ku working frequency band for power amplification, so that the structure is compact, and miniaturization, diversification and integration are realized;
2. compared with the traditional transmitter, two paths of completely independent power amplifier units are integrated inside the transmitter. The signal enters a dual-band frequency conversion module, corresponding Ka and Ku frequency band radio frequency signals are output, dual-band driving amplification is realized in the dual-band frequency conversion module, then preset power amplification is carried out through an amplification link of Ka and Ku, the integration of the Ku frequency band and the Ka frequency band power amplifier in the same miniaturized case is realized, and the Ku frequency band and the Ka frequency band power amplifier can work in different time without mutual interference; on the premise of ensuring the index of output power, the heat dissipation is fully considered, and the weight and the volume of power synthesis are greatly reduced;
3. in order to fully improve the utilization rate of a small space and the efficiency of the whole machine, the transmitter adopts an integrated radiating system, and an integrated temperature equalizing plate is designed on a radiating surface, so that the radiating reaches the optimal state in time-sharing work. The inside of the transmitter adopts a distributed design, the monitoring control module is arranged in the cavity, and the dual-band frequency synthesis module, the dual-band frequency conversion module and the power supply module are vertically interconnected through the connector;
4. the requirement of an input frequency band is reduced, the input power frequency range can meet Ka-band and Ku-band power output only through an S-band, the applicability of the whole machine is improved, and the use limit of a product is greatly reduced.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Fig. 1 shows a schematic top view structure of an embodiment of the present application.
Fig. 2 shows a schematic perspective structure of an embodiment of the present application.
Fig. 3 shows a schematic perspective structure diagram of a Ka band assembly module according to an embodiment of the present application.
Fig. 4 shows a schematic perspective structure diagram of a Ku frequency band assembly module according to an embodiment of the present application.
Fig. 5 shows a perspective view of the overall appearance of the embodiment of the present application.
Fig. 6 shows an overall appearance perspective view two of the embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are some embodiments of the present invention, not all embodiments.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and this is only for the convenience of description of the present invention and simplification of the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Examples
As shown in fig. 1-2, the miniaturized Ka/Ku band transmitter provided in this embodiment includes: the device comprises a dual-band frequency synthesis module 3, a dual-band frequency conversion module 4, a Ka frequency band assembly module, a Ku frequency band assembly module and a power module 8.
The power module 8 is arranged at a position having a predetermined distance with the other side wall of the dual-band frequency synthesis module 3 in the length direction, and is connected with each module for providing required voltage or current for each module.
The dual-band frequency synthesis module 3 is used for providing local oscillation signals of a Ka frequency band or a Ku frequency band; and the dual-band frequency conversion module 4 is vertically arranged below the dual-band frequency synthesis module 3 and is connected with the dual-band frequency synthesis module 3, and the dual-band frequency conversion module 4 is used for up-converting an input S-band excitation signal to a Ka frequency band or a Ku frequency band according to a local oscillator signal and amplifying and outputting a filtering radio frequency small signal.
The Ka frequency band assembly module is arranged at a position which has a preset distance with one side wall of the dual-band frequency synthesis module 3 in the length direction, is connected with one output port of the dual-band frequency conversion module 4, and is used for improving linearity of a Ka frequency band radio-frequency signal subjected to up-conversion, amplifying the signal to preset output power, and outputting the signal after forward and reverse coupling detection.
And the Ku frequency band assembly module is arranged at a position which has a preset distance with one end wall of the dual-band frequency synthesis module 3 in the length direction, is connected with another output port of the dual-band frequency conversion module 4, and is used for amplifying the Ku frequency band radio-frequency signal subjected to up-conversion to preset output power, inhibiting radio-frequency harmonics and outputting the radio-frequency harmonic signal after forward and reverse coupling detection.
As a further embodiment of the present example, the case 26 is square, as shown in FIGS. 1-2.
The dual-band frequency synthesis module 3 is overlapped with the dual-band frequency conversion module 4; the dual-band frequency synthesis module 3, the power supply module 8 and the Ka frequency band assembly module are arranged in parallel in the length direction and are perpendicular to the length direction of the Ku frequency band assembly module; the dual-band frequency synthesis module 3, the dual-band frequency conversion module 4, the Ka frequency band assembly module, the Ku frequency band assembly module and the power module 8 form a square whole body and are accommodated in the box body 26.
In particular, in a further detailed example,
one side wall of the Ku frequency band assembly module in the length direction correspondingly faces to a first peripheral side wall of the box body 26, and the other side wall correspondingly faces to one end wall of the dual-band frequency synthesis module 3 in the length direction and a first side of the Ka frequency band assembly module; one end wall of the Ku frequency band assembling module in the length direction corresponds to the second peripheral side wall of the box body 26, and the other end wall corresponds to one side wall of the power module 8 in the length direction.
The other end wall of the dual-band frequency synthesis module 3 in the length direction is correspondingly towards the third peripheral side wall of the box body 26.
The Ka frequency band assembly module is located in the other side wall in the length direction of the Ku frequency band assembly module, one side wall in the length direction of the dual-band frequency synthesis module 3, and the area between the second peripheral side wall and the third peripheral side wall of the box body 26.
The power module 8 is located in the fourth side wall, the first side wall, the third side wall of the box 26, and the other end wall in the length direction of the Ku frequency band assembly module, and the other side wall in the length direction of the dual-band frequency synthesizer module 3.
In this example, through the connection relation of each module and reasonable spatial layout setting, make can hold in a smaller box 26 with the square whole that is littleer, compact structure, it is multiple functional. Under the condition of realizing dual-band variable frequency amplification output, the miniaturization, integration and lightness in a smaller space range are realized.
As a further preferred embodiment, a monitoring control module 9 is further disposed in the box 26, and is disposed in an end wall of the power module 8 in the length direction, another side wall of the dual-band frequency synthesizer module 3 in the length direction, and a region between a third peripheral side wall and a fourth peripheral side wall of the box 26, and is connected to each module, so as to monitor the working state of each module in real time, and implement remote monitoring, fault location and safety protection in cooperation with an upper computer.
As shown in fig. 3, as a detailed embodiment, the Ka band assembly module includes a Ka linearization driving module 5, a Ka band power amplifier module 6, and a Ka band coupling detection module 1, which are connected in sequence, where the Ka linearization driving module 5 is connected to one of the output ports of the dual-band frequency conversion module 4.
The Ka linearization driving module 5 is used for improving the linearity index of the Ka frequency band. And the Ka-band power amplification module 6 is used for amplifying the improved Ka-band radio-frequency signal to preset output power. The Ka-band coupling detection module 1 is used for performing forward and reverse coupling detection on the amplified Ka-band radio-frequency signal and outputting the amplified Ka-band radio-frequency signal.
The structural layout and connection form of the assembly module are as follows:
the Ka-band linear driving module 5 is arranged on one side of the Ka-band power amplification module 6, and the Ka-band coupling detection module 1 is arranged on the opposite side of the Ka-band power amplification module 6. An output waveguide port of the Ka-band linearization driving module 5 is in butt joint with a waveguide input port of the Ka-band power amplification module 6, and a waveguide output port of the Ka-band power amplification module 6 is connected with a waveguide input port of the Ka-band coupling detection module 1.
As a more detailed scheme of the Ka band assembly module, as shown in fig. 3, the Ka band power amplifier module 6 includes: a Ka band synthesizing network 22; and a plurality of Ka final-stage transmitters 21 provided on the bottom surface of the Ka band combining network 22 and connected to the Ka band combining network 22.
As shown in fig. 4, as a detailed embodiment, the Ku band assembling module includes a Ku band power amplifier module 7, a Ku band waveguide filter 10, and a Ku band coupling detection module 2, which are connected in sequence, where the Ku band power amplifier module 7 is connected to another output port of the two-band frequency conversion module 4.
Wherein: the Ku band power amplification module 7 is used for amplifying the Ku band radio-frequency signal subjected to up-conversion to preset output power; the Ku waveband waveguide filter 10 is used for performing radio frequency harmonic suppression on the amplified Ku frequency band radio frequency signal; and the Ku waveband coupling detection module 2 is used for performing forward and reverse coupling detection on the Ku frequency band radio-frequency signal subjected to harmonic suppression and outputting the Ku frequency band radio-frequency signal.
The structural layout and connection form of the assembly module are as follows:
one end of the Ku-band waveguide filter 10 in the length direction is vertically connected with one end of the Ku-band power amplifier module 7, and the other end of the Ku-band waveguide filter 10 in the length direction is connected with the Ku-band coupling detection module 2; and the opposite end of the Ku-band power amplifier module 7 is connected with the other output port of the dual-band frequency conversion module 4 through a radio frequency cable.
As a more detailed scheme of the Ku band assembly module, as shown in fig. 4, the Ku band power amplifier module 7 includes: a Ku band combining network 23, a plurality of Ku final stage transmitters 29, and a wave multiplexer 24.
One end of the Ku frequency band synthesis network 23 is vertically connected with one end of the Ku wave band waveguide filter 10 in the length direction; a plurality of Ku final-stage transmitters 29 are arranged on the bottom surface of the Ku frequency band synthesis network 23; the wave synchronization switch 24 is arranged on the top surface of the other end of the Ku frequency band synthesis network 23.
As a further preferred embodiment, as shown in fig. 1, a temperature equalization plate 11 is provided in the case 26; the Ka frequency range assembly module and the Ku frequency range assembly module are arranged on the temperature equalizing plate 11 through the heat conducting pad and used for improving the heat dissipation effect of the two assembly modules.
Based on this, the case 26 is made of a material having high heat dissipation performance, and at the same time, the peripheral side wall of the case 26 is provided with heat dissipation fins 27, as shown in fig. 2, 5, and 6, for further improving the heat dissipation effect.
Based on this, as a more preferable scheme, a fan 17 and a fan cover plate 14 assembly for heat dissipation are arranged on one peripheral side wall, such as the fourth peripheral side wall, of the box 26, as shown in fig. 5, so as to further improve the heat dissipation effect of each module in the box 26 through an active heat dissipation manner.
As a more specific embodiment, the top and bottom surfaces of the case 26 are connected, the upper cover 12 is detachably mounted on the top surface, and the lower cover 13 is detachably mounted on the bottom surface, so that the case 26 can be conveniently detached when necessary to take out a module corresponding to the need of replacement or maintenance. As shown in FIGS. 5 to 6, the box 26 is assembled with the upper cover 12 and the lower cover 13.
Specifically, as shown in fig. 1, 2 and 5, a power interface 15, a control interface 16 and a radio frequency connector input connector 25 are disposed on a fourth peripheral side wall of the box 26, that is, a side wall of the box 26 closest to the other side wall of the power module 8 in the length direction. The fan 17 and the fan cover 14 are also provided on the peripheral sidewall.
The power interface 15 is connected with the power module 8, and the control interface 16 is connected with the monitoring control module 9.
The input connector 25 of the radio frequency connector is connected with the input port of the dual-band frequency conversion module 4.
The fan 17 is connected with the power supply module 8.
As shown in fig. 6, a first standard waveguide port 19 and a second standard waveguide port 20 are provided in a partial region of a second peripheral side wall of the case 26, that is, a side wall corresponding to the fourth peripheral side wall, and heat dissipation fins 27 are provided in other regions.
The first standard waveguide port 19 is connected with an output port of the Ku band coupling detection module 2;
the second standard waveguide port 20 is connected to the output port of the Ka band coupling detector module 1.
Specifically, as shown in fig. 1, a feedthrough capacitor 18 is disposed at a top corner of the box 26 in a region near the monitoring control module 9, and the feedthrough capacitor 18 is connected to a feeder of the fan 17 for feeding the fan 17.
In practice, the transmitter of the present embodiment can be assembled as follows:
(1) assembly of Ka frequency range assembly module
Firstly, as shown in fig. 3, a plurality of Ka standard power modules 21 and a Ka band combining network 22 are assembled into a Ka band power amplifier module 6 by means of screw installation;
then, as shown in fig. 3, the waveguide ports of the Ka-band coupling detection module 1, the Ka-linearization driving module 5 and the Ka-band power amplification module 6 are butted one by one, and then the three modules are assembled by screws to form a Ka-band assembly module.
(2) Assembly of Ku frequency range assembly module
First, as shown in fig. 4, the wave synchronization adapter 24, the plurality of Ku standard power modules 29, and the Ku band synthesizer network 23 are assembled into the Ku band power amplifier module 7 by means of screw installation.
Then, as shown in fig. 4, the waveguide ports of the Ku band coupling detection module 2, the Ku band power amplifier module 7, and the Ku band waveguide filter 10 are butted one by one, and then the three modules are assembled by screws to form a Ku band assembly module.
(3) As shown in fig. 1, the vapor chamber 11 is first mounted to the case 26 by screws.
(4) As shown in fig. 1-2, the Ka-band assembly module and the Ku-band assembly module are mounted on the temperature-uniforming plate 11, a heat-conducting pad is added between the temperature-uniforming plate and the assembly body, and the radiating surfaces of the Ka-band and Ku-band standard power modules are tightly attached to the temperature-uniforming plate.
(5) Install monitoring control module 9, power module 8, dual-band frequency conversion module 4 and dual-band frequency synthesis module 3 again through the screw inside box 26, dual-band frequency conversion module 4 and dual-band frequency synthesis module 3 are perpendicular to be folded and are established, install radio frequency connector and screw locking between and.
(6) And installing the radio frequency connector input connector 25, the control interface 16 and the power supply interface 15 outside the box body 26 through screws, and finally installing a radio frequency cable to form the structure shown in the figure 1 or 2.
(7) And finally, an upper cover plate 12, a lower cover plate 13, a fan cover plate 14 and four fans 17 are installed to form the installed dual-band transmitter, as shown in fig. 5-6.
The utility model discloses dual band transmitter has integrated dual band frequency in a cavity and has combined module, dual band frequency conversion module, linearization drive module, power module, control module and dual band power amplifier module etc. and Ka and Ku frequency channel output preset power, light in weight.
The Ka frequency band and the Ku frequency band of the embodiment are designed in a multi-stage amplification mode, and the main function is to realize amplification and output of radio frequency signals of the Ka frequency band and the Ku frequency band according to the index requirements of a system and provide operating state parameters to the outside at the same time.
The working process and the signal flow are as follows:
the working process is as follows: after the power amplifier module is powered on, the monitoring control module firstly carries out complete machine self-checking, the monitoring control module enters a working state after the self-checking is passed, the monitoring control module can control the power supply module to selectively power on the Ka frequency band power amplifier module and the Ku frequency band power amplifier module according to a power amplifier module control interface communication instruction, and the system can realize power amplifier control setting and state query according to actual needs.
Signal flow: the input reference signal and the input intermediate frequency signal are sent to an input port of the dual-band frequency conversion module through a radio frequency cable, the input reference signal and the input intermediate frequency signal are separated by a duplexer inside the dual-band frequency conversion module, and the separated input reference signal is sent to the dual-band frequency synthesis module through a radio frequency connector to be used as a reference signal to carry out frequency doubling, frequency mixing and filtering processing to generate Ka and Ku local oscillation signals. After the input intermediate frequency signal is separated, the up-conversion processing is carried out in the dual-band frequency conversion module through the switch switching, and the radio frequency signal output of the Ka or Ku frequency band is generated.
A radio-frequency signal of a Ku frequency band generated by the two-band frequency conversion module enters the Ku band power amplification module through a radio-frequency cable to be amplified to preset power, the amplified signal is in butt joint with the Ku band waveguide filter through a waveguide port to carry out harmonic suppression, and an output signal of the waveguide filter is in butt joint with the Ku band coupling detection module through the waveguide port and then enters the Ku band coupling detection module to be directly output, so that final Ku frequency signal power output is completed.
The radio frequency signal of the Ka frequency band generated by the dual-band frequency conversion module enters a Ka linearization driving module through a radio frequency cable to be linearized and amplified, then the output waveguide port of the Ka linearization driving module is in butt joint with the input waveguide port of the Ka band power amplification module, power amplification is carried out until the preset power is achieved, the finally amplified signal is in butt joint with the waveguide port of the Ka band coupling detection module through the output waveguide port of the Ka band power amplification module and then enters the Ka band coupling detection module to be directly output, and the final power output of the Ka frequency signal is completed.
The foregoing is only a preferred embodiment of the invention and is not intended to be the only or limiting embodiment of the invention. It should be understood by those skilled in the art that various changes and equivalent substitutions made herein may be made without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. A miniaturized Ka/Ku band transmitter, comprising:
the dual-band frequency synthesis module (3) is used for providing local oscillation signals of a Ka frequency band or a Ku frequency band;
the dual-band frequency conversion module (4) is vertically arranged below the dual-band frequency synthesis module (3), is connected with the dual-band frequency synthesis module (3), and is used for up-converting an input S-band excitation signal to a Ka frequency band or a Ku frequency band according to a local oscillator signal and amplifying and outputting a filtered radio frequency small signal;
the Ka frequency band assembly module is arranged at a position which has a preset distance with one side wall in the length direction of the dual-band frequency synthesis module (3), is connected with one output port of the dual-band frequency conversion module (4), and is used for improving the linearity of the up-converted Ka frequency band radio-frequency signal, amplifying the up-converted Ka frequency band radio-frequency signal to preset output power and outputting the amplified Ka frequency band radio-frequency signal after forward and reverse coupling detection;
the Ku frequency band assembly module is arranged at a position which has a preset distance with one end wall of the dual-band frequency synthesis module (3) in the length direction, is connected with the other output port of the dual-band frequency conversion module (4), and is used for amplifying the Ku frequency band radio-frequency signal subjected to up-conversion to preset output power, carrying out radio-frequency harmonic suppression and outputting the radio-frequency harmonic signal after forward and reverse coupling detection; and
and the power supply module (8) is arranged at a position which has a preset distance with the other side wall in the length direction of the dual-band frequency synthesis module (3) and is used for providing required voltage or current for each module.
2. The miniaturized Ka/Ku band transmitter according to claim 1, further comprising a case (26) in the shape of a square;
the dual-band frequency synthesis module (3) is overlapped with the dual-band frequency conversion module (4); the length directions of the dual-band frequency synthesis module (3), the power supply module (8) and the Ka frequency band assembly module are arranged in parallel and are perpendicular to the length direction of the Ku frequency band assembly module;
the dual-band frequency synthesis module (3), the dual-band frequency conversion module (4), the Ka frequency band assembly module, the Ku frequency band assembly module and the power module (8) form a square whole body and are accommodated in the box body (26).
3. The miniaturized Ka/Ku band transmitter of claim 2, wherein:
one side wall of the Ku frequency band assembly module in the length direction correspondingly faces to a first peripheral side wall of the box body (26), and the other side wall correspondingly faces to one end wall of the dual-band frequency synthesis module (3) in the length direction and a first side of the Ka frequency band assembly module;
one end wall of the Ku frequency band assembly module in the length direction correspondingly faces to a second peripheral side wall of the box body (26), and the other end wall of the Ku frequency band assembly module in the length direction correspondingly faces to one side wall of the power module (8);
the other end wall of the dual-band frequency synthesis module (3) in the length direction correspondingly faces to the third circumferential side wall of the box body (26);
the Ka frequency band assembly module is positioned in the other side wall in the length direction of the Ku frequency band assembly module, one side wall in the length direction of the dual-band frequency synthesis module (3), and the area between the second peripheral side wall and the third peripheral side wall of the box body (26);
the power module (8) is positioned in the fourth side wall, the first side wall and the third side wall of the box body (26), and the other end wall of the Ku frequency band assembly module in the length direction and the other side wall of the dual-band frequency synthesis module (3) in the length direction.
4. The miniaturized Ka/Ku band transmitter of claim 3, wherein: further comprising:
the temperature equalizing plate (11) is arranged on the box body (26); the Ka frequency band assembly module and the Ku frequency band assembly module are arranged on the temperature equalizing plate (11) through heat conducting pads; and
the monitoring control module (9) is arranged on one end wall of the power module (8) in the length direction and the other side wall of the dual-band frequency synthesis module (3) in the length direction, and is arranged in an area between the third peripheral side wall and the fourth peripheral side wall of the box body (26) for monitoring the working state of each module in real time and matching with an upper computer to realize remote monitoring, fault positioning and safety protection.
5. The miniaturized Ka/Ku frequency band transmitter according to any one of claims 1-4, wherein:
the Ka frequency band assembly module comprises a Ka linearization driving module (5), a Ka band power amplification module (6) and a Ka band coupling detection module (1) which are sequentially connected, wherein the Ka linearization driving module (5) is connected with one output port of the dual-band frequency conversion module (4);
the Ka linearization driving module (5) is used for improving the linearity index of the Ka frequency band;
the Ka-band power amplification module (6) is used for amplifying the improved Ka-band radio-frequency signal to preset output power;
and the Ka-band coupling detection module (1) is used for performing forward and reverse coupling detection on the amplified Ka-band radio-frequency signal and outputting the amplified Ka-band radio-frequency signal.
6. The miniaturized Ka/Ku band transmitter of claim 5, wherein: the Ka-band linear driving module (5) is arranged on one side of the Ka-band power amplification module (6), and the Ka-band coupling detection module (1) is arranged on the opposite side of the Ka-band power amplification module (6);
an output waveguide port of the Ka-band linearization driving module (5) is in butt joint with a waveguide input port of the Ka-band power amplification module (6), and a waveguide output port of the Ka-band power amplification module (6) is connected with a waveguide input port of the Ka-band coupling detection module (1).
7. The miniaturized Ka/Ku band transmitter of claim 5, wherein: ka wave band power amplifier module (6) includes:
a Ka band synthesis network (22); and
and the plurality of Ka final-stage transmitters (21) are arranged on the bottom surface of the Ka frequency band synthesis network (22) and are connected with the Ka frequency band synthesis network (22).
8. The miniaturized Ka/Ku frequency band transmitter according to any one of claims 1-4, characterized in that the Ku frequency band assembly module comprises a Ku band power amplifier module (7), a Ku band waveguide filter (10) and a Ku band coupling detection module (2) which are sequentially connected, wherein the Ku band power amplifier module (7) is connected with another output port of the two-band frequency conversion module (4);
the Ku band power amplifier module (7) is used for amplifying the Ku band radio-frequency signal subjected to up-conversion to preset output power;
the Ku waveband waveguide filter (10) is used for carrying out radio frequency harmonic suppression on the amplified Ku frequency band radio frequency signal;
and the Ku band coupling detection module (2) is used for carrying out forward and reverse coupling detection on the Ku band radio-frequency signal subjected to harmonic suppression and then outputting the Ku band radio-frequency signal.
9. The miniaturized Ka/Ku band transmitter of claim 8, wherein:
one end of the Ku-band waveguide filter (10) in the length direction is vertically connected with one end of the Ku-band power amplifier module (7), and the other end of the Ku-band waveguide filter (10) in the length direction is connected with the Ku-band coupling detection module (2);
and the opposite end of the Ku-band power amplifier module (7) is connected with the other output port of the dual-band frequency conversion module (4) through a radio frequency cable.
10. The miniaturized Ka/Ku band transmitter of claim 8, wherein: the Ku-band power amplifier module (7) comprises:
a Ku frequency band synthesis network (23), one end of which is vertically connected with one end of the Ku wave band waveguide filter (10) in the length direction;
a plurality of Ku final-stage transmitters (29) arranged on the bottom surface of the Ku frequency band synthesis network (23); and
and the wave synchronization switching (24) is arranged on the top surface of the other end of the Ku frequency band synthesis network (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021705096.9U CN213094185U (en) | 2020-08-17 | 2020-08-17 | Miniaturized Ka/Ku frequency range transmitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021705096.9U CN213094185U (en) | 2020-08-17 | 2020-08-17 | Miniaturized Ka/Ku frequency range transmitter |
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| CN213094185U true CN213094185U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021705096.9U Active CN213094185U (en) | 2020-08-17 | 2020-08-17 | Miniaturized Ka/Ku frequency range transmitter |
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| CN (1) | CN213094185U (en) |
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