Radio communication system adopting Ku wave band continuous wave power amplifier

Abstract

The invention relates to a radio communication system adopting a Ku-band continuous wave power amplifier, and relates to the technical field of radio communication systems, and the radio communication system comprises a transmitter and a receiver. The transmitter comprises an information input module, a first signal processing module, a modulator module, a power amplifier module and a transmitting antenna; the power amplifier module comprises a driving amplifier, a power divider, a waveguide combiner and a plurality of final-stage power amplifiers, the driving amplifier is electrically connected with the modulator module, the driving amplifier is electrically connected with the power divider, the plurality of final-stage power amplifiers are electrically connected with the power divider, the plurality of final-stage power amplifiers are electrically connected with the waveguide combiner, and the waveguide combiner is electrically connected with the power divider. And the output end of the waveguide combiner is electrically connected with the transmitting antenna. Under the condition that normal work of the power amplifier module is guaranteed, the possibility that the power amplifier module is burnt down is reduced, and then normal use of a radio communication system is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of radio communication systems, and in particular to a radio communication system using a Ku-band continuous wave power amplifier. Background Art

[0002] A radio communication system is a system that transmits information and communicates via radio waves. Radio communication systems use radio technology to convert information such as sound, data, and images into electromagnetic waves, transmit them in space, and convert the electromagnetic waves back into recognizable information through receiving equipment. Currently, among the commonly used radio waves, the Ku band (12-18 GHz) has become one of the preferred frequency bands for modern communication systems due to its high frequency and wide bandwidth. The Ku band is widely used in satellite communications, digital broadcasting, cable and satellite television, and satellite mobile communications.

[0003] At present, common radio communication systems mainly consist of transmitters, channels and receivers. Among them, the transmitter is mainly used to convert the information to be transmitted (such as sound, images, data, etc.) into radio wave signals and transmit them through the corresponding antenna; the channel is the medium for signal transmission, generally air, allowing radio waves to propagate between the transmitter and the receiver; the receiver is mainly used to receive the radio wave signals from the transmitter and restore them to the original information.

[0004] In order to increase the signal coverage range of the transmitter, a power amplifier (PA) is generally added at the end of the transmitter. The PA receives the low-power RF signal from the transmitter, amplifies the low-power RF signal and converts it into a high-power RF signal, and then sends the high-power RF signal out. This can improve the signal coverage range of the transmitter, enhance the signal penetration capability and the stability of signal transmission.

[0005] With regard to the above-mentioned related technologies, as radio communication technology develops, the signal coverage range of the transmitter is now required to be higher and higher. In order to increase the signal coverage range of the transmitter, the existing power amplifiers are mostly multi-stage settings, and the multi-stage power amplifiers are connected in series, so that the output power of the signal can be larger and larger. However, since the power of the output signal of the multi-stage series power amplifier will be larger and larger, the power amplifier of the last stage is easy to be burned, making the transmitter unable to send a signal or the signal coverage range does not meet the requirements, which leads to the interruption of the radio communication system. Summary of the invention

[0006] The present application provides a radio communication system using a Ku-band continuous wave power amplifier, the purpose of which is to improve the power amplifier module, reduce the possibility of burning the power amplifier module while ensuring the normal operation of the power amplifier module, and thus ensure the normal use of the radio communication system.

[0007] The present application provides a radio communication system using a Ku-band continuous wave power amplifier using the following technical solutions: A radio communication system using a Ku-band continuous wave power amplifier comprises a transmitter and a receiver, wherein the transmitter is used to send out a radio signal, and the receiver is used to receive a radio signal; the transmitter comprises an information input module, a first signal processing module, a modulator module, a power amplifier module and a transmitting antenna, wherein the information input module, the first signal processing module, the modulator module, the power amplifier module and the transmitting antenna are electrically connected in sequence, and the transmitting antenna is used to send out a radio signal; the power amplifier module comprises a driving amplifier, a power divider, a waveguide combiner and a plurality of final-stage power amplifiers, wherein an input end of the driving amplifier is electrically connected to an output end of the modulator module, an output end of the driving amplifier is electrically connected to an input end of the power divider, input ends of a plurality of final-stage power amplifiers are all electrically connected to an output end of the power divider, output ends of a plurality of final-stage power amplifiers are all electrically connected to an input end of the waveguide combiner, and an output end of the waveguide combiner is electrically connected to the transmitting antenna.

[0008] By adopting the above technical solution, firstly, the cooperation between the transmitter and the receiver realizes the sending and receiving of radio signals, thereby realizing the functions of the radio communication system.

[0009] Secondly, in the transmitter, the information input module receives the information input by the user. After preliminary processing by the first signal processing module, the signal is sent to the modulator module for modulation to meet the requirements of wireless transmission. The modulated signal enters the power amplifier module for amplification to increase the transmission distance and strength of the signal. The amplified signal is input to the transmitting antenna and transmitted through the transmitting antenna. The receiver captures the signal through the receiving antenna, and after noise reduction, demodulation and signal processing, the signal is restored to the original information for the user.

[0010] The power amplifier module works through a driver amplifier, a power divider, a waveguide combiner, and several final-stage power amplifiers. When a signal is input into the power amplifier module, the driver amplifier performs preliminary amplification on the signal, and then the power divider divides the signal into multiple paths. Each signal is further amplified by a final-stage power amplifier. Finally, the waveguide combiner combines the multiple signals into one path and transmits the combined signal to the transmitting antenna.

[0011] The power amplifier module distributes the signal evenly to multiple final power amplifiers through the power divider, which can reduce the signal power burden on each final power amplifier, thereby reducing the possibility of burning and damage to the final power amplifier. This can reduce the possibility of burning the power amplifier module while ensuring the normal operation of the power amplifier module, thereby ensuring the normal use of the radio communication system.

[0012] Optionally, the power amplifier module also includes a power supply and a controller, and the driving amplifier, power divider, waveguide combiner and several final stage power amplifiers are all electrically connected to the power supply and the controller.

[0013] By adopting the above technical solution, the introduction of the power supply provides a stable power supply for the power amplifier module, thereby ensuring the normal operation of the driver amplifier, power divider, waveguide combiner and final power amplifier in the power amplifier module. The addition of the controller enables the power amplifier module to have intelligent control functions. The controller can accurately control the power on / off, working mode switching, frequency adjustment and power adjustment of the power amplifier module according to external control signals or preset control strategies. Therefore, the introduction of the power supply and controller not only improves the power supply stability and intelligent control level of the power amplifier module, but also improves the integration and maintainability of the radio communication system, and further enhances the performance and practicality of the radio communication system.

[0014] Optionally, the power amplifier module includes a power amplifier body, which includes a shell, and the shell is provided with a radio frequency input port, a waveguide output port, a power interface and a control interface; the driving amplifier, the power divider, the waveguide combiner and several final-stage power amplifiers are all located in the shell, and the radio frequency input port is electrically connected to the input end of the driving amplifier, and the output end of the waveguide combiner is electrically connected to the waveguide output port; the driving amplifier, the power divider, the waveguide combiner and several final-stage power amplifiers are all electrically connected to the power interface and the control interface; the power supply is electrically connected to the power interface, the controller is electrically connected to the control interface, the output end of the modulator module is electrically connected to the radio frequency input port, and the input end of the transmitting antenna is electrically connected to the waveguide output port.

[0015] By adopting the above technical solution, the power amplifier body integrates the driving amplifier, power divider, waveguide combiner and several final-stage power amplifiers in the shell through the setting of the shell, forming a complete modular unit. This modular design makes the connection and arrangement of the driving amplifier, power divider, waveguide combiner and several final-stage power amplifiers more compact and stable, reducing external interference and signal loss.

[0016] The outer shell is provided with a radio frequency input port, a waveguide output port, a power interface and a control interface. The setting of the radio frequency input port, the waveguide output port, the power interface and the control interface facilitates the rapid connection and disassembly of the power amplifier body with the power supply, the controller, the modulator module and the transmitting antenna, and further facilitates the rapid replacement of the power amplifier body with a new one when the power amplifier body is damaged or the amplification power is insufficient.

[0017] Optionally, the outer shell includes a closed top plate, a heat dissipation bottom plate and a support plate ring, the closed top plate is arranged parallel to the heat dissipation bottom plate and spaced apart, the support plate ring is located between the heat dissipation bottom plate and the support plate ring, the heat dissipation bottom plate and the closed top plate are both detachably connected to the support plate ring, and an installation space is formed between the closed top plate, the heat dissipation bottom plate and the support plate ring; the RF input port, waveguide output port, power interface and control interface are all arranged on the support plate ring; the driving amplifier, power divider, waveguide combiner and several final stage power amplifiers are all located in the installation space, and several of the final stage power amplifiers are all arranged on the heat dissipation bottom plate.

[0018] By adopting the above technical solution, the housing forms a closed installation space by coordinating the closed top plate, the support ring plate and the heat dissipation bottom plate. The closed structure of the housing can effectively shield external electromagnetic interference, protect the normal operation of the driving amplifier, power divider, waveguide combiner and several final amplifiers inside the housing, and also prevent the leakage of internal signals, improving the electromagnetic compatibility of the power amplifier body, which is particularly important for high-frequency signals in the Ku band, because high-frequency signals are more sensitive to electromagnetic interference and signal loss, and the shielding and protection of the housing can significantly improve the signal quality and transmission effect.

[0019] The design of the heat dissipation base provides a good heat dissipation foundation for the final stage power amplifier. Since the final stage power amplifier will generate a large amount of heat during operation, the heat dissipation base can effectively conduct and dissipate the heat to prevent the internal temperature of the power amplifier body from being too high, affecting the performance and life of the power amplifier body.

[0020] Optionally, a plurality of the final stage power amplifiers are arranged in a matrix, and two adjacent final stage power amplifiers are arranged at an interval.

[0021] By adopting the above technical solution, since a number of final-stage power dividers are arranged in a matrix and two adjacent final-stage power dividers are arranged at intervals, there is sufficient heat dissipation space between the two adjacent final-stage power dividers, which facilitates the heat inside the housing to be conducted out through the heat dissipation bottom plate. This can further improve the heat dissipation effect of the power amplifier body.

[0022] Optionally, an active heat dissipation mechanism is provided on the heat dissipation base plate, and the active heat dissipation mechanism includes a mounting plate, a heat conducting plate and a plurality of heat fins, the mounting plate is arranged on a side of the heat dissipation base plate away from the support plate ring, the heat conducting plate is arranged on the mounting plate, and the heat conducting plate is fitted with the heat dissipation base plate; a heat dissipation groove is penetrated through the side wall of the mounting plate, and a plurality of the heat dissipation fins are located in the heat dissipation groove, the heat dissipation fins are connected to the heat conducting plate, a plurality of the heat dissipation fins are arranged in parallel and spaced apart, and a heat dissipation air duct is formed between two adjacent heat dissipation fins, and the length direction of the heat dissipation air duct is arranged along the depth direction of the heat dissipation groove.

[0023] By adopting the above technical solution, firstly, the active heat dissipation mechanism is arranged by the coordination of the mounting plate, the heat conducting plate and a plurality of heat dissipation fins. The heat conducting plate fits tightly with the heat dissipation base plate, and can quickly transfer the heat on the heat dissipation base plate to the heat conducting plate. The heat dissipation fins are connected to the heat conducting plate, which can quickly transfer the heat on the heat conducting plate to the heat dissipation fins. The coordination of the heat conducting plate and a plurality of heat dissipation fins can increase the heat dissipation area of ​​the heat dissipation base plate, thereby allowing the heat to be quickly dissipated to the heat dissipation slot. Secondly, since a heat dissipation air duct is formed between two adjacent heat dissipation fins, and the length direction of the heat dissipation air duct is arranged along the depth direction of the heat dissipation slot, the heat in the heat dissipation air duct can flow to the outside of the heat dissipation slot with the air, thereby ensuring the heat dissipation efficiency of the heat dissipation base plate.

[0024] Optionally, fan groups are arranged on two opposite sides of the mounting plate, the two fan groups are arranged at intervals along the depth direction of the heat dissipation groove, and the heat dissipation groove is located between the two fan groups.

[0025] By adopting the above technical solution, two fan groups cooperate, one fan group blows air into the heat sink, and the other fan group blows the air out of the heat sink, which can accelerate the air flow speed in the heat sink and further improve the heat dissipation efficiency of the heat sink base.

[0026] Optionally, the fan group includes a plurality of cooling fans, and the cooling fans are arranged in a one-to-one correspondence with the cooling air ducts, and the cooling fans are arranged directly opposite to the corresponding cooling air ducts.

[0027] By adopting the above technical solution, since the plurality of heat dissipation fans in each fan group are arranged in one-to-one correspondence with the heat dissipation air ducts, this can further increase the air flow velocity in the heat dissipation slot, thereby further improving the heat dissipation efficiency of the heat dissipation base plate.

[0028] Optionally, two ventilation hole groups are provided on the heat conducting plate, the two ventilation hole groups are spaced apart along the depth direction of the heat sink, a plurality of the heat sink fins are located between the two ventilation hole groups, two ventilation hole groups are located between two fan groups, and the ventilation hole groups connect the heat sink and the installation space; the heat sink fins include a plurality of heat sink plates, the plurality of heat sink plates are sequentially arranged along the depth direction of the heat sink, the heat sink plates are rotatably connected to the heat conducting plate, a switching drive member is provided on the installation plate, all the heat sink plates are connected to the switching drive member, and the switching drive member is used to drive the heat sink plates to rotate.

[0029] By adopting the above technical solution, since the heat sink fins include a plurality of heat sinks, and each heat sink is rotatably connected to the heat conducting plate, the setting of the switching drive member enables all the heat sinks to rotate, which enables the heat sink to be switched into two different states.

[0030] In the first state, the plurality of heat sinks are parallel to the depth direction of the heat sink. At this time, the plurality of heat sinks arranged in sequence along the depth direction of the heat sink constitute heat sink fins.

[0031] In the second state, the plurality of heat dissipation plates are perpendicular to the depth direction of the heat dissipation slot, and the plurality of heat dissipation plates close the heat dissipation slot.

[0032] When the plurality of heat sinks are in the first state, the airflow blown out by the fan assembly blows through the heat sink, which can prevent the gas from entering the housing.

[0033] When several heat sinks are in the second state, the airflow blown out by the fan group is blocked by several heat sinks in the heat sink, and the airflow enters the installation space from the heat sink through the ventilation hole group, and then the airflow re-enters the heat sink from another ventilation hole group, which enables the airflow to pass through the installation space, thereby improving the heat dissipation effect.

[0034] With the cooperation of the switching drive member and the ventilation hole group, the power amplifier body of the present application has two different heat dissipation methods, which enables the power amplifier body to freely select the heat dissipation method according to actual conditions.

[0035] Optionally, the ventilation hole group includes a first hole and a second hole, the first hole is opened on the heat conducting plate, the second hole is opened on the heat dissipation base plate, and the first hole is connected to the second hole; two slides are arranged on the heat conducting plate, and the slides are arranged one by one corresponding to the ventilation hole group, the slides are slidably connected to the heat conducting plate, and the slides are connected to the switching drive member, and when the switching drive member drives the heat dissipation plate to rotate, the switching drive member drives the slides to slide synchronously; a through hole is opened on the slide, and the switching drive member is used to drive the slide to slide until the through hole is connected or staggered with the first hole.

[0036] By adopting the above technical solution, firstly, the ventilation hole group ensures the connection between the heat sink and the installation space through the cooperation of the first hole and the second hole. Secondly, the setting of the skateboard, under the drive of the switching drive, when the switching drive drives the heat sink to rotate to the second state, the through hole on the skateboard is connected with the first hole and the second hole, and the airflow can pass through the installation space. Then, when the switching drive drives the heat sink to rotate to the first state, the through hole on the skateboard is staggered with the first hole, and the airflow cannot enter the installation space at this time. Therefore, this can automatically open or close the installation space according to the state of the heat sink, and then ensure that the installation space is in a closed state when the airflow is not required to enter the installation space.

[0037] In summary, the present application includes at least one of the following beneficial technical effects: 1. The power amplifier module of the present application distributes the signal evenly to multiple final-stage power amplifiers through a power divider, which can reduce the signal power burden borne by each final-stage power amplifier, thereby reducing the possibility of burning and damage to the final-stage power amplifier. This can reduce the possibility of burning the power amplifier module while ensuring the normal operation of the power amplifier module, thereby ensuring the normal use of the radio communication system.

[0038] 2. The power amplifier body of the present application integrates the driving amplifier, power divider, waveguide combiner and several final-stage power amplifiers in the housing through the setting of the housing, forming a complete modular unit. This modular design makes the connection and arrangement of the driving amplifier, power divider, waveguide combiner and several final-stage power amplifiers more compact and stable, reducing external interference and signal loss.

[0039] 3. The present application improves the heat dissipation performance of the power amplifier body by arranging the positions of several final-stage power amplifiers in the housing.

[0040] 4. This application uses the coordination of the heat sink, the switching drive, the ventilation hole group and the skateboard to enable the power amplifier body to choose two different heat dissipation methods according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of signal transmission within the radio communication system of Example 1 of the present application.

[0042] Figure 2 It is a schematic diagram of the overall structure of the power amplifier module of Example 1 of the present application.

[0043] Figure 3 It is a schematic diagram of internal signal transmission of the power amplifier body of Example 1 of the present application.

[0044] Figure 4 It is a schematic diagram of the overall structure of the power amplifier body of Example 1 of the present application.

[0045] Figure 5 It is a schematic diagram of the internal structure of the power amplifier cup body of Example 1 of the present application.

[0046] Figure 6 It is a schematic diagram of the overall structure of the final stage power amplifier of Example 1 of the present application.

[0047] Figure 7 It is a schematic diagram of the overall structure of the waveguide combiner of Example 1 of the present application.

[0048] Figure 8 It is a schematic diagram of the overall structure of the power amplifier body and active heat dissipation mechanism of Example 2 of the present application.

[0049] Fig. 9 It is a schematic diagram of the exploded structure of the active heat dissipation mechanism of Example 2 of the present application.

[0050] Fig.10 It is a schematic cross-sectional structural diagram of the active heat dissipation mechanism of Example 2 of the present application.

[0051] Fig.11 It is a schematic diagram of the overall structure of the switching drive component and a plurality of heat dissipation fins of Example 2 of the present application.

[0052] In the figure, 100, transmitter; 101, information input module; 102, first signal processing module; 103, modulator module; 104, power amplifier module; 105, transmitting antenna; 200, receiver; 201, receiving antenna; 202, noise reduction module; 203, demodulator module; 204, second signal processing module; 205, information display module; 1, power supply; 2, controller; 3, power amplifier body; 31, shell; 311, closed top plate; 312, support plate ring; 313, heat dissipation bottom plate; 32, RF input port; 33, waveguide output port; 34, power interface; 35, control interface; 36, drive amplifier; 37, power distributor; 38, final power amplifier; 381, RF input port; 382, First waveguide output port; 39, waveguide combiner; 391, second waveguide output port; 392, waveguide input port; 4, active heat dissipation mechanism; 41, mounting plate; 411, mounting slot; 412, heat dissipation slot; 42, heat conducting plate; 43, heat dissipation fin; 431, heat dissipation duct; 432, heat dissipation plate; 433, rotating shaft; 44, fan group; 441, mounting frame; 442, cooling fan; 45, ventilation hole group; 451, first hole; 452, second hole; 46, switching drive member; 461, driving rod group; 4611, rotating rod; 462, linkage rod; 463, connecting rod; 464, driving push rod; 47, protection plate; 471, making way; 48, slide plate; 481, through hole; 482, connecting plate; 483, moving slot. DETAILED DESCRIPTION

[0053] The following is combined with Figure 1 -Attached Fig.11 , further details of this application are given.

[0054] Embodiment 1: A radio communication system using a Ku-band continuous wave power amplifier, referring to Figure 1 , including a transmitter 100 and a receiver 200, wherein the transmitter 100 includes an information input module 101, a first signal processing module 102, a modulator module 103, a power amplifier module 104 and a transmitting antenna 105, and the information input module 101, the first signal processing module 102, the modulator module 103, the power amplifier module 104 and the transmitting antenna 105 are electrically connected in sequence. The receiver 200 includes a receiving antenna 201, a noise reduction module 202, a demodulator module 203, a second signal processing module 204 and an information display module 205, and the receiving antenna 201, the noise reduction module 202, the demodulator module 203, the second signal processing module 204 and the information display module 205 are electrically connected in sequence. In addition, the transmitting antenna 105 communicates with the receiving antenna 201 through radio.

[0055] With the cooperation of the transmitter 100 and the receiver 200, in the transmitter 100, the user inputs information into the information input module 101, the information input module 101 generates a signal according to the information and inputs the signal into the first signal processing module 102; the first signal processing module 102 performs preliminary processing on the signal to ensure that the quality and format of the signal meet the requirements; the processed signal is sent to the modulator module 103, and the modulator module 103 modulates the signal into a frequency and form suitable for wireless transmission; the modulated signal is amplified by the power amplifier module 104 to increase the transmission distance and strength of the signal; the amplified signal is transmitted through the transmitting antenna 105. In the receiver 200, the receiving antenna 201 captures the radio signal emitted by the transmitting antenna 105; then the signal is sent to the noise reduction module 202 to reduce noise interference and improve the clarity of the signal; the noise-reduced signal enters the demodulator module 203, and the demodulator module 203 demodulates and restores the signal; the demodulated signal is further processed by the second signal processing module 204 to ensure the integrity and accuracy of the signal; the processed signal is transmitted to the information display module 205, and the information display module 205 converts the signal into audio or video or pictures for users to view and use.

[0056] Reference Figure 2 The power amplifier module 104 includes a power supply 1, a controller 2 and a power amplifier body 3. The power supply 1, the controller 2, the modulator module 103 and the transmitting antenna 105 are all electrically connected to the power amplifier body 3.

[0057] Reference Figure 2and Figure 3 The power amplifier body 3 includes a driving amplifier 36, a power divider 37, a waveguide combiner 39 and a plurality of final-stage power amplifiers 38. The output end of the modulator module 103 is electrically connected to the input end of the driving amplifier 36, and the output end of the driving amplifier 36 is electrically connected to the input end of the power divider 37. The power divider 37 is provided with a plurality of output ends, and the output ends of the power divider 37 are arranged one-to-one with the final-stage power amplifier 38, and the output ends of the power divider 37 are electrically connected to the input ends of the corresponding final-stage power amplifiers 38. The waveguide combiner 39 is provided with a plurality of input ends, and the input ends of the waveguide combiner 39 are arranged one-to-one with the final-stage power amplifier 38, and the input ends of the waveguide combiner 39 are electrically connected to the output ends of the corresponding final-stage power amplifiers 38. The output end of the waveguide combiner 39 is electrically connected to the input end of the transmitting antenna 105.

[0058] When the power amplifier module 104 is working, the modulator module 103 inputs the signal to the driving amplifier 36, the driving amplifier 36 preliminarily amplifies the signal and inputs it to the power divider 37; the power divider 37 divides the signal into several power division signals of equal amplitude and phase, and inputs them to several final power amplifiers 38 through several output ends on the power divider 37; the final power amplifier 38 amplifies the signal again and inputs it to the waveguide combiner 39; the waveguide combiner 39 synthesizes several signals and outputs the synthesized signal to the transmitting antenna 105.

[0059] Reference Figure 3 and Figure 4 The power amplifier body 3 includes a housing 31, on which a radio frequency input port 32, a waveguide output port 33, a power interface 34 and a control interface 35 are provided, and a driving amplifier 36, a power distributor 37, a waveguide combiner 39 and a plurality of final stage power amplifiers 38 are all located in the housing 31. The radio frequency input port 32 is electrically connected to the input end of the driving amplifier 36, and the output end of the waveguide combiner 39 is electrically connected to the waveguide output port 33.

[0060] Reference Figure 2 and Figure 4 The output end of the modulator module 103 is electrically connected to the RF input port 32 , and the input end of the transmitting antenna 105 is electrically connected to the waveguide output port 33 .

[0061] Reference Figure 2 and Figure 4The driving amplifier 36, the power distributor 37, the waveguide combiner 39 and the final power amplifiers 38 are all electrically connected to the power interface 34, and the power supply 1 is electrically connected to the power interface 34. The driving amplifier 36, the power distributor 37, the waveguide combiner 39 and the final power amplifiers 38 are all electrically connected to the control interface 35, and the controller 2 is electrically connected to the control interface 35. The power supply 1 supplies power to the power amplifier body 3, and the controller 2 controls the power on / off, working mode switching, frequency adjustment and power adjustment of the power amplifier body 3 according to the external control signal.

[0062] Reference Figure 4 The housing 31 includes a closed top plate 311, a heat dissipation bottom plate 313 and a support plate ring 312. The closed top plate 311 is arranged vertically and spaced directly above the heat dissipation bottom plate 313. The closed top plate 311 and the heat dissipation bottom plate 313 are arranged in parallel. The support plate ring 312 is located between the closed top plate 311 and the heat dissipation bottom plate 313. The upper end of the support plate ring 312 is detachably connected to the closed top plate 311, and the lower end of the support plate ring 312 is detachably connected to the heat dissipation bottom plate 313. Thus, an installation space is formed between the support plate ring 312, the heat dissipation bottom plate 313 and the closed top plate 311. In this embodiment, the closed top plate 311, the heat dissipation bottom plate 313 and the support plate ring 312 are connected by bolts.

[0063] Reference Figure 4 The RF input port 32 , the waveguide output port 33 , the power interface 34 and the control interface 35 are all arranged on the outer side wall of the support plate ring 312 .

[0064] Reference Figure 4 and Figure 5 The driver amplifier 36, the power distributor 37, the waveguide combiner 39 and the final power amplifiers 38 are all located in the installation space. The driver amplifier 36, the power distributor 37 and the final power amplifiers 38 are all arranged on the heat dissipation base plate 313, and the waveguide combiner 39 is located above the final power amplifier 38.

[0065] Reference Figure 5 There are four final stage power amplifiers 38, which are arranged in a matrix, and two adjacent final stage power amplifiers 38 are arranged at intervals. Since the final stage power amplifiers 38 are arranged in a matrix on the heat dissipation base plate 313, the heat dissipation effect of the final stage power amplifiers 38 can be improved.

[0066] The final power amplifier 38 is detachably connected to the heat sink 313 and the waveguide combiner 39. In this embodiment, the final power amplifier 38 is connected to the heat sink 313 and the waveguide combiner 39 by sintering, gold wire bonding or other micro-assembly methods.

[0067] Reference Figure 5 and Figure 6The final stage power amplifier 38 is provided with a radio frequency input port 381 and a first waveguide output port 382. The radio frequency input port 381 is arranged on the side wall of the final stage power amplifier 38. The radio frequency input port 381 is electrically connected to the power distributor 37 through a cable. The first waveguide output port 382 is arranged on the upper side of the final stage power amplifier 38.

[0068] Reference Figure 6 and Figure 7 The waveguide combiner 39 is provided with a second waveguide output port 391 and a plurality of waveguide input ports 392. The second waveguide output port 391 is located on the side wall of the waveguide combiner 39, and the second waveguide output port 391 is connected with the waveguide output port 33. The waveguide input port 392 is located at the lower side of the waveguide combiner 39, and the waveguide input port 392 is arranged in a one-to-one correspondence with the first waveguide output port 382. The waveguide input port 392 is connected with the corresponding first waveguide output port 382 in a vertical direction.

[0069] Reference Figure 6 and Figure 7 Due to the setting of the waveguide input port 392 on the waveguide combiner 39 and the setting of the first waveguide output port 382 of the final stage power amplifier 38, the waveguide combiner 39 and the final stage power amplifier 38 can be directly connected, which can realize the miniaturization of the power amplifier module 104.

[0070] In this embodiment, the output power of a single final-stage power amplifier 38 is not less than 50 W, and the output power of the waveguide combiner 39 can reach 150 W.

[0071] The implementation principle of the embodiment of the present application is: when performing radio communication, when the signal in the transmitter 100 passes through the power amplifier module 104, the signal is input into the driving amplifier 36, the driving amplifier 36 preliminarily amplifies the signal, and then inputs the preliminarily amplified signal into the power divider 37; the power divider 37 divides the signal into four equal-amplitude and in-phase (same amplitude and phase) power division signals, and inputs them into four final-stage power amplifiers 38 through four output terminals; the final-stage power amplifier 38 amplifies the corresponding signal, and inputs the amplified signal into the waveguide combiner 39; the waveguide combiner 39 synthesizes the four signals and outputs the synthesized signal.

[0072] Embodiment 2: A radio communication system using a Ku-band continuous wave power amplifier, referring to Figure 8 The difference between this embodiment and embodiment 1 is that an active heat dissipation mechanism 4 is also provided on the heat dissipation base plate 313, and the active heat dissipation mechanism 4 includes a mounting plate 41, and the mounting plate 41 is arranged on the lower side of the heat dissipation base plate 313, and the mounting plate 41 is detachably connected to the heat dissipation base plate 313.

[0073] Reference Fig. 9 and Fig.10The active heat dissipation mechanism 4 also includes a heat conducting plate 42. A mounting groove 411 is provided on the upper side of the mounting plate 41. The heat conducting plate 42 is plugged into the mounting groove 411. The upper side of the heat conducting plate 42 is in contact with the heat dissipation bottom plate 313. A heat dissipation groove 412 is provided on one side of the mounting plate 41 in the width direction. The heat dissipation groove 412 is connected to the mounting groove 411.

[0074] The heat conducting plate 42 can quickly transfer the heat on the heat dissipation bottom plate 313 into the heat dissipation slot 412 , thereby achieving rapid heat dissipation.

[0075] Reference Fig. 9 and Fig.10 The active heat dissipation mechanism 4 further includes a plurality of heat dissipation fins 43, which are all located in the heat dissipation slot 412. The length direction of the heat dissipation fins 43 is arranged along the width direction of the mounting plate 41. The heat dissipation fins 43 are arranged in sequence along the length direction of the mounting plate 41, and the upper side of the heat dissipation fins 43 is connected to the heat conduction plate 42. A heat dissipation air duct 431 is formed between the inner wall of the heat dissipation slot 412 and the adjacent heat dissipation fins 43 and between two adjacent heat dissipation fins 43. In this embodiment, the heat conduction plate 42 and the heat dissipation fins 43 are made of copper or aluminum or other materials with good thermal conductivity.

[0076] The cooperation of the heat conducting plate 42 and the plurality of heat dissipating fins 43 can increase the heat dissipation area, thereby improving the heat dissipation effect.

[0077] Reference Figure 8 and Fig.10 A fan group 44 is provided on one side of the mounting plate 41 in the width direction. The fan group 44 includes a mounting frame 441. A plurality of cooling fans 442 are provided in the mounting frame 441. The cooling fans 442 are arranged in sequence and spaced apart along the length direction of the mounting plate 41. The cooling fans 442 are arranged one by one correspondingly to the cooling air ducts 431, and the cooling air ducts 431 are arranged directly opposite to the corresponding cooling fans 442.

[0078] When the heat dissipation efficiency needs to be improved, the heat dissipation fan 442 is started. At this time, the heat dissipation fan 442 can increase the gas flow speed in the heat dissipation air duct 431, thereby improving the heat dissipation efficiency.

[0079] In this embodiment, refer to Fig. 9 and Fig.10 There are two fan groups 44, which are respectively located on both sides of the mounting plate 41 in the width direction, and the two fan groups 44 are arranged opposite to each other along the width direction of the mounting plate 41, which can further improve the heat dissipation efficiency.

[0080] Reference Fig. 9 and Fig.10The heat dissipation fins 43 include a plurality of heat dissipation plates 432. A rotating shaft 433 is disposed in the middle of the heat dissipation plates 432. The rotating shaft 433 is disposed vertically. The upper end of the rotating shaft 433 is rotatably connected to the heat conduction plate 42, and the lower end is rotatably connected to the corresponding inner wall of the heat dissipation slot 412. A switching drive member 46 is disposed on the mounting plate 41. The plurality of rotating shafts 433 are all connected to the switching drive member 46. Two ventilation hole groups 45 are disposed on the heat conduction plate 42. The two ventilation hole groups 45 are spaced apart along the width direction of the mounting plate 41, and the plurality of heat dissipation plates 432 are located between the two ventilation hole groups 45. The ventilation hole group 45 connects the heat dissipation slot 412 and the mounting space.

[0081] When the fan group 44 is working, the switching drive 46 drives the plurality of rotating shafts 433 to rotate, so that each heat sink 432 rotates ninety degrees. At this time, the airflow blown out by the fan group 44 will be blown into the outer shell 31 from the ventilation hole group 45, and then the airflow will be blown out of the outer shell 31 from another ventilation hole group 45, which can improve the heat dissipation effect of the power amplifier body 3.

[0082] In this embodiment, refer to Fig. 9 and Fig.10 A protective plate 47 is provided on the lower side of the mounting plate 41, and the protective plate 47 is detachably connected to the mounting plate 41. A clearance space 471 is opened on one side of the protective plate 47 facing the mounting plate 41, and the switching drive member 46 is located in the mounting space.

[0083] Reference Fig.10 and Fig.11 The switching driving member 46 includes a driving push rod 464, a connecting rod 463, a plurality of linkage rods 462 and a plurality of driving rod groups 461.

[0084] Reference Fig.10 and Fig.11 The plurality of driving rod groups 461 are sequentially arranged at intervals along the width direction of the mounting plate 41, and the driving rod groups 461 are arranged one-to-one with the heat dissipation plates 432 in the heat dissipation fins 43. The driving rod group 461 includes a plurality of rotating rods 4611, and the plurality of rotating rods 4611 are sequentially arranged at intervals along the length direction of the mounting plate 41, and the rotating rods 4611 are arranged one-to-one with the rotating shafts 433, and one end of the rotating shaft 433 is connected to the middle of the corresponding rotating rod 4611.

[0085] Reference Fig.10 and Fig.11 The length direction of the linkage rod 462 is arranged along the length direction of the mounting plate 41, and a plurality of linkage rods 462 are arranged in sequence and spaced apart along the width direction of the mounting plate 41. The linkage rods 462 are arranged one by one corresponding to the driving rod groups 461, and the linkage rods 462 are rotatably connected to one end of a plurality of rotating rods 4611 in the corresponding driving rod groups 461.

[0086] Reference Fig.10 and Fig.11 The length direction of the connecting rod 463 is arranged along the width direction of the mounting plate 41, a plurality of linkage rods 462 are located on one side of the width direction of the connecting rod 463, and one end of the linkage rod 462 is slidably connected to the connecting rod 463 along its own width direction.

[0087] Reference Fig.11 The driving push rod 464 is located at a side of the connecting rod 463 away from the linkage rod 462, and the driving end of the driving push rod 464 is connected to the connecting rod 463. In this embodiment, the driving push rod 464 is an electric push rod.

[0088] Reference Fig.11 With the cooperation of the driving push rod 464, the connecting rod 463, the plurality of linkage rods 462 and the plurality of driving rod groups 461, when the driving push rod 464 drives the connecting rod 463 to move along its own width direction, the connecting rod 463 can drive the plurality of linkage rods 462 to move along its own length direction, and the linkage rod 462 can drive the plurality of rotating rods 4611 in the corresponding driving rod group 461 to rotate, and then the corresponding plurality of heat sinks 432 to rotate, which can drive all the heat sinks 432 to rotate synchronously.

[0089] Reference Fig.10 and Fig.11 When the plurality of heat sinks 432 are parallel to one side of the length direction of the mounting plate 41 , the plurality of heat sinks 432 sequentially arranged along the width direction of the mounting plate 41 form the heat sink fins 43 .

[0090] When the heat dissipation plates 432 are parallel to one side of the mounting plate 41 in the width direction, the heat dissipation plates 432 arranged in sequence along the length direction of the mounting plate 41 form a closed plate, which closes the heat dissipation groove 412 along the depth direction of the heat dissipation groove 412 .

[0091] In this embodiment, refer to Fig. 9 and Fig.10 The ventilation hole group 45 includes a plurality of first holes 451 and a plurality of second holes 452. The first holes 451 are formed through the heat dissipation bottom plate 313, and the second holes 452 are formed on the heat conduction plate 42. The plurality of first holes 451 are sequentially arranged at intervals along the length direction of the mounting plate 41. The first holes 451 and the second holes 452 are arranged one by one in correspondence, and the first holes 451 are connected to the corresponding second holes 452. The cooperation between the first holes 451 and the second holes 452 enables the heat dissipation slot 412 to be connected to the mounting space.

[0092] Reference Fig.10 and Fig.11 Two slide plates 48 are provided on the lower side of the heat conducting plate 42. The two slide plates 48 are provided on the lower side of the heat conducting plate 42. The slide plates 48 are provided one-to-one with the ventilation hole groups 45. The length direction of the slide plates 48 is provided along the length direction of the mounting plate 41. The slide plates 48 are slidably connected with the heat conducting plate 42 along their own length direction.

[0093] Reference Fig.10 and Fig.11 A moving groove 483 is provided in the mounting plate 41. The moving groove 483 is provided at the bottom of the mounting groove 411, and the moving groove 483 is connected to the clearance space 471. A connecting plate 482 is provided between the slide plate 48 and the connecting rod 463. The connecting plate 482 is located in the moving groove 483. The upper side of the connecting plate 482 is connected to the slide plate 48, and the lower side is connected to the connecting rod 463. The connecting plate 482 is slidably connected to the inner side wall of the moving groove 483 along the length direction of the mounting plate 41. When the driving push rod 464 drives the connecting rod 463 to move, the slide plate 48 moves synchronously under the action of the connecting plate 482.

[0094] Reference Fig.10 and Fig.11 A plurality of through holes 481 are provided on the slide plate 48 , and the through holes 481 are arranged in one-to-one correspondence with the second holes 452 in the corresponding ventilation hole group 45 , and the through holes 481 and the corresponding second holes 452 are staggered.

[0095] When the switching driving member 46 drives the plurality of heat dissipation plates 432 to be parallel to the side wall in the width direction of the mounting plate 41 , the through holes 481 are communicated with the corresponding second holes 452 .

[0096] The implementation principle of the embodiment of the present application is: under the drive of the switching driving member 46, the power amplifier body 3 has the following two heat dissipation modes: First, all heat sinks 432 are arranged parallel to the side wall of the mounting plate 41 in the length direction. At this time, heat sink fins 43 are formed corresponding to several heat sinks 432, and a heat dissipation duct 431 is formed between two adjacent heat dissipation fins 43. At this time, under the operation of the fan group 44, the flow rate of the air flow in the heat dissipation duct 431 is accelerated, thereby speeding up the heat dissipation.

[0097] The second type is that all the heat sinks 432 are arranged parallel to the side walls in the width direction of the mounting plate 41. At this time, a corresponding number of heat sinks 432 form a closed plate, which closes the heat sink 412, and the mounting space is connected to the heat sink 412. Under the operation of the fan group 44, the airflow enters the mounting space from one ventilation hole group 45, and is finally discharged from the mounting space from another ventilation hole group 45, which can improve the heat dissipation efficiency of the power amplifier body 3.

[0098] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A radio communication system using a Ku-band continuous wave power amplifier, characterized in that: include: A transmitter (100) and a receiver (200), the transmitter (100) being used to send a radio signal and the receiver (200) being used to receive a radio signal; The transmitter (100) comprises an information input module (101), a first signal processing module (102), a modulator module (103), a power amplifier module (104) and a transmitting antenna (105); the information input module (101), the first signal processing module (102), the modulator module (103), the power amplifier module (104) and the transmitting antenna (105) are electrically connected in sequence; and the transmitting antenna (105) is used to send a radio signal; The power amplifier module (104) comprises a driving amplifier (36), a power distributor (37), a waveguide combiner (39) and a plurality of final-stage power amplifiers (38); the input end of the driving amplifier (36) is electrically connected to the output end of the modulator module (103); the output end of the driving amplifier (36) is electrically connected to the input end of the power distributor (37); the input ends of the plurality of final-stage power amplifiers (38) are electrically connected to the output end of the power distributor (37); the output ends of the plurality of final-stage power amplifiers (38) are electrically connected to the input end of the waveguide combiner (39); and the output end of the waveguide combiner (39) is electrically connected to the transmitting antenna (105).

2. A radio communication system using a Ku-band continuous wave power amplifier according to claim 1, characterized in that: The power amplifier module (104) further comprises a power supply (1) and a controller (2), and the driving amplifier (36), the power distributor (37), the waveguide combiner (39) and a plurality of final-stage power amplifiers (38) are all electrically connected to the power supply (1) and the controller (2).

3. A radio communication system using a Ku-band continuous wave power amplifier according to claim 2, characterized in that: The power amplifier module (104) comprises a power amplifier body (3), the power amplifier body (3) comprises a housing (31), and the housing (31) is provided with a radio frequency input port (32), a waveguide output port (33), a power interface (34), and a control interface (35); the driving amplifier (36), the power distributor (37), the waveguide combiner (39), and a plurality of final-stage power amplifiers (38) are all located in the housing (31), and the radio frequency input port (32) is electrically connected to an input end of the driving amplifier (36), and an output end of the waveguide combiner (39) is electrically connected to the waveguide output port (33); The driving amplifier (36), the power distributor (37), the waveguide combiner (39) and the plurality of final-stage power amplifiers (38) are all electrically connected to the power interface (34) and the control interface (35); The power supply (1) is electrically connected to the power interface (34), the controller (2) is electrically connected to the control interface (35), the output end of the modulator module (103) is electrically connected to the radio frequency input port (32), and the input end of the transmitting antenna (105) is electrically connected to the waveguide output port (33).

4. A radio communication system using a Ku-band continuous wave power amplifier according to claim 3, characterized in that: The housing (31) comprises a closed top plate (311), a heat dissipation bottom plate (313) and a support plate ring (312); the closed top plate (311) and the heat dissipation bottom plate (313) are arranged in parallel and spaced apart from each other; the support plate ring (312) is located between the heat dissipation bottom plate (313) and the support plate ring (312); the heat dissipation bottom plate (313) and the closed top plate (311) are both detachably connected to the support plate ring (312); and an installation space is formed between the closed top plate (311), the heat dissipation bottom plate (313) and the support plate ring (312); The radio frequency input port (32), the waveguide output port (33), the power interface (34) and the control interface (35) are all arranged on the support plate ring (312); The driving amplifier (36), the power distributor (37), the waveguide combiner (39), and a plurality of final-stage power amplifiers (38) are all located in the installation space, and the plurality of final-stage power amplifiers (38) are all arranged on the heat dissipation base plate (313).

5. A radio communication system using a Ku-band continuous wave power amplifier according to claim 4, characterized in that: The plurality of final-stage power amplifiers (38) are arranged in a matrix, and two adjacent final-stage power amplifiers (38) are arranged at intervals.

6. A radio communication system using a Ku-band continuous wave power amplifier according to claim 4, characterized in that: An active heat dissipation mechanism (4) is arranged on the heat dissipation base plate (313), the active heat dissipation mechanism (4) comprising a mounting plate (41), a heat conduction plate (42) and a plurality of heat dissipation fins (43), the mounting plate (41) being arranged on a side of the heat dissipation base plate (313) away from the support plate ring (312), the heat conduction plate (42) being arranged on the mounting plate (41), and the heat conduction plate (42) being in contact with the heat dissipation base plate (313); A heat dissipation groove (412) is formed through the side wall of the mounting plate (41), a plurality of the heat dissipation fins (43) are located in the heat dissipation groove (412), the heat dissipation fins (43) are connected to the heat conducting plate (42), a plurality of the heat dissipation fins (43) are arranged in parallel and at intervals, and a heat dissipation air duct (431) is formed between two adjacent heat dissipation fins (43), and the length direction of the heat dissipation air duct (431) is arranged along the depth direction of the heat dissipation groove (412).

7. A radio communication system using a Ku-band continuous wave power amplifier according to claim 6, characterized in that: Fan groups (44) are arranged on opposite sides of the mounting plate (41), the two fan groups (44) are arranged at intervals along the depth direction of the heat dissipation groove (412), and the heat dissipation groove (412) is located between the two fan groups (44).

8. A radio communication system using a Ku-band continuous wave power amplifier according to claim 7, characterized in that: The fan group (44) comprises a plurality of cooling fans (442), the cooling fans (442) being arranged in one-to-one correspondence with the cooling air ducts (431), and the cooling fans (442) being arranged directly opposite to the corresponding cooling air ducts (431).

9. A radio communication system using a Ku-band continuous wave power amplifier according to claim 7, characterized in that: The heat conducting plate (42) is provided with two ventilation hole groups (45), the two ventilation hole groups (45) are arranged at intervals along the depth direction of the heat dissipation slot (412), a plurality of heat dissipation fins (43) are located between the two ventilation hole groups (45), the two ventilation hole groups (45) are located between the two fan groups (44), and the ventilation hole groups (45) are connected to the heat dissipation slot (412) and the installation space; The heat dissipation fins (43) include a plurality of heat dissipation plates (432), the plurality of heat dissipation plates (432) being arranged in sequence along the depth direction of the heat dissipation slot (412), the heat dissipation plates (432) being rotatably connected to the heat conducting plate (42), a switching drive member (46) being arranged on the mounting plate (41), all the heat dissipation plates (432) being connected to the switching drive member (46), and the switching drive member (46) being used to drive the heat dissipation plates (432) to rotate.

10. A radio communication system using a Ku-band continuous wave power amplifier according to claim 9, characterized in that: The ventilation hole group (45) comprises a first hole (451) and a second hole (452), the first hole (451) being opened on the heat dissipation base plate (313), the second hole (452) being opened on the heat conduction plate (42), and the first hole (451) being connected to the second hole (452); Two slide plates (48) are provided on the heat conducting plate (42), the slide plates (48) are provided in one-to-one correspondence with the ventilation hole groups (45), the slide plates (48) are slidably connected to the heat conducting plate (42), and the slide plates (48) are connected to the switching drive member (46), and when the switching drive member (46) drives the heat dissipation plate (432) to rotate, the switching drive member (46) drives the slide plates (48) to slide synchronously; The slide plate (48) is provided with a through hole (481), and the switching drive member (46) is used to drive the slide plate (48) to slide until the through hole (481) is connected to or staggered with the first hole (451).

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