CN109981159A - Airborne double frequency satellite power amplification system, airborne double frequency satellite power amplifier method - Google Patents
Airborne double frequency satellite power amplification system, airborne double frequency satellite power amplifier method Download PDFInfo
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- CN109981159A CN109981159A CN201910131007.XA CN201910131007A CN109981159A CN 109981159 A CN109981159 A CN 109981159A CN 201910131007 A CN201910131007 A CN 201910131007A CN 109981159 A CN109981159 A CN 109981159A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18515—Transmission equipment in satellites or space-based relays
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Abstract
This application involves a kind of airborne double frequency satellite power amplification systems, airborne double frequency satellite power amplifier method, comprising: control unit, intermediate-freuqncy signal selecting unit, Ka frequency range power amplifier unit, Ku frequency range power amplifier unit, signal input end of intermediate frequency mouth, Ka frequency range RF signal output mouth and Ku frequency range RF signal output mouth；Intermediate-freuqncy signal selecting unit is connect with signal input end of intermediate frequency mouth, Ka frequency range power amplifier unit, Ku frequency range power amplifier unit and control unit, Ka frequency range power amplifier unit is connect with control unit and Ka frequency range RF signal output mouth, and Ku frequency range power amplifier unit is connect with control unit and Ku frequency range RF signal output mouth；For control unit when receiving frequency range switching command, control intermediate-freuqncy signal selecting unit switching work at present frequency range is Ka frequency range or Ku frequency range.By above system, when aircraft needs switch satellite communications band in flight course, the switching of power amplifier output frequency can be quickly completed, guarantees that communication is normal.
Description
Technical field
This application involves technical field of satellite communication, more particularly to a kind of airborne double frequency satellite power amplification system, airborne pair
Frequency satellite power amplifier method.
Background technique
With the rapid development of civil aviation transportation industry, air communications technical requirements are continuously improved.Satellite communication system
There is bandwidth, the characteristics of power is big, anti-interference, mobility strong, is suitble to the particular surroundings of airborne communication.Make in the world at present
Broadband connections satellite, in addition to marine satellite 5 generation star is able to achieve Global coverage, ViaSat satellite system, Intelsat Ku
The 16 Ka satellite communication system of culminant star that band satellite system and China are being built belongs to regional area cover type satellite
Communication system.In the world, since omnidirectional radiation effective power (EIRP) value of different satellites to different geographical has very greatly
Difference, this will lead to the decline of satellite communication quality, especially bright on the such high-speed motion of aircraft, the carrier moved on a large scale
It is aobvious.Therefore, existing satellite communication equipment can only be compatible with single frequency band, when transoceanic course line in the world, cannot achieve
All satellite communications.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide a kind of airborne double frequency satellite power amplification system, airborne double frequency is defended
Star power amplifier method.
A kind of airborne double frequency satellite power amplification system, comprising:
Control unit, intermediate-freuqncy signal selecting unit, Ka frequency range power amplifier unit, Ku frequency range power amplifier unit, intermediate-freuqncy signal input
Port, Ka frequency range RF signal output mouth and Ku frequency range RF signal output mouth；
The intermediate-freuqncy signal selecting unit and the signal input end of intermediate frequency mouth, Ka frequency range power amplifier unit, Ku frequency range power amplifier
Unit and control unit connection, the Ka frequency range power amplifier unit and described control unit and the Ka frequency range radiofrequency signal are defeated
Exit port connection, the Ku frequency range power amplifier unit and described control unit and the Ku frequency range RF signal output mouth connect
It connects；
Described control unit controls the intermediate-freuqncy signal selecting unit and switches current work when receiving frequency range switching command
Making frequency range is Ka frequency range or Ku frequency range；
When work at present frequency range is Ka frequency range, the Ka frequency is inputted by the signal of signal input end of intermediate frequency mouth input
Section power amplifier unit；When work at present frequency range is Ku frequency range, as described in the signal input of signal input end of intermediate frequency mouth input
Ku frequency range power amplifier unit.
In one of the embodiments, the system also includes monitoring port, described control unit includes monitoring unit；Institute
The monitoring unit for stating monitoring port and described control unit connects；
The monitoring unit receives working condition inquiry instruction by the monitoring port, obtains the work of the system
State, and the working condition of the system is back to the controlling terminal connecting with the system by the monitoring port.
In one of the embodiments, the system also includes indicator light, the indicator light is connect with described control unit；
The indicator light is used to indicate the working condition of the system and the work at present frequency range of the system.
The system also includes power ports, power supply unit in one of the embodiments,；
The power supply unit and described control unit, the power port, the Ka frequency range power amplifier unit and the Ku
The connection of frequency range power amplifier unit, the power supply unit provide power supply for the system.
The intermediate-freuqncy signal selecting unit receives frequency range switching in described control unit and refers in one of the embodiments,
It enables, when needing to switch to Ka frequency range according to the frequency range switching command is determining, by the power amplifier state of the Ka frequency range power amplifier unit
It is switched to cancellation disabling, the power amplifier state of the Ku frequency range power amplifier unit is switched to disabling；
The intermediate-freuqncy signal selecting unit receives frequency range switching command in described control unit, is switched according to the frequency range
When instruction determination needs to switch to Ku frequency range, the power amplifier state of the Ku frequency range power amplifier unit is switched to cancellation disabling, by institute
The power amplifier state for stating Ka frequency range power amplifier unit is switched to disabling.
The Ka frequency range power amplifier unit includes Ka Band BUC subelement and Ka HPA in one of the embodiments,
Unit；The Ka Band BUC subelement is connect with the intermediate-freuqncy signal selecting unit, the Ka HPA subelement and the Ka
The connection of frequency range RF signal output mouth；
The Ku frequency range power amplifier unit includes Ku Band BUC subelement and Ku HPA subelement；The Ku Band BUC
Subelement is connect with the intermediate-freuqncy signal selecting unit, the Ku HPA subelement and the Ku frequency range RF signal output mouth
Connection.
The power amplifier state of the Ku frequency range power amplifier unit is Ku when cancelling disabling in one of the embodiments,
The phase lock loop locks of Band BUC subelement, power supply unit are powered the Ku HPA subelement；
When the power amplifier state of the Ku frequency range power amplifier unit is disabling, the phaselocked loop of the Ku Band BUC subelement is lost
Lock, the power module stop powering to the Ku HPA subelement.
Described control unit is connect with controlling terminal by RS-422 in one of the embodiments,；Alternatively, the control
Unit is connect with controlling terminal by Ethernet communication mode.
A kind of airborne double frequency satellite power amplifier method, comprising:
Control unit controls the intermediate-freuqncy signal according to the frequency range switching command and selects when receiving frequency range switching command
Selecting unit switching work at present frequency range is Ka frequency range or Ku frequency range；
When work at present frequency range is Ka frequency range, Ka frequency range power amplifier list is inputted by the signal that signal input end of intermediate frequency mouth inputs
Member；
When work at present frequency range is Ku frequency range, Ku frequency range power amplifier list is inputted by the signal that signal input end of intermediate frequency mouth inputs
Member.
Described control unit is receiving frequency range switching command in one of the embodiments, and is cut according to the frequency range
It changes instruction and determines that control intermediate-freuqncy signal selecting unit opens the RF switch of Ka frequency range when needing to switch to Ka frequency range, control Ka
The phase lock loop locks of the Ka Band BUC subelement of frequency range power amplifier unit, control power supply unit are that Ka HPA of Ka frequency range is single
Member power supply；
The RF switch of intermediate-freuqncy signal selecting unit shutdown Ku frequency range power amplifier unit is controlled, control Ku frequency range power amplifier unit
The phaselocked loop losing lock of Ku Band BUC subelement, control power supply unit stop powering for the Ku HPA subelement of Ku frequency range.
Above-mentioned airborne double frequency satellite power amplification system, airborne double frequency satellite power amplifier method, control unit, intermediate-freuqncy signal selection are single
Member, Ka frequency range power amplifier unit, Ku frequency range power amplifier unit, signal input end of intermediate frequency mouth, Ka frequency range RF signal output mouth and
Ku frequency range RF signal output mouth.Above system had not only included Ka frequency range power amplifier unit, but also including Ku frequency range power amplifier unit, was also wrapped
Intermediate-freuqncy signal selecting unit is included, work at present frequency can be selected by the intermediate-freuqncy signal selecting unit of the system according to the actual situation
Section, therefore system may be implemented to switch between Ka frequency range and Ku frequency range, and when transoceanic course line in the world, aircraft is flying
When needing switch satellite communications band during row, the switching of power amplifier output frequency can be quickly completed, is guaranteeing communication just
Often.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of airborne double frequency satellite power amplification system in one embodiment；
Fig. 2 is the structural schematic diagram of airborne double frequency satellite power amplification system in another embodiment；
Fig. 3 is the structural schematic diagram of airborne double frequency satellite power amplification system in a specific embodiment；
Fig. 4 is the flow diagram of airborne double frequency satellite power amplifier method in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
A kind of airborne double frequency satellite power amplification system is proposed in the application, as shown in Figure 1, comprising:
Control unit 110, intermediate-freuqncy signal selecting unit 120, Ka frequency range power amplifier unit 130, Ku frequency range power amplifier unit 140,
Signal input end of intermediate frequency mouth 150, Ka frequency range RF signal output mouth 160 and Ku frequency range RF signal output mouth 170.
Wherein, intermediate-freuqncy signal selecting unit 120 and signal input end of intermediate frequency mouth 150, Ka frequency range power amplifier unit 130, Ku frequency
Section power amplifier unit 140 and control unit 110 connect, Ka frequency range power amplifier unit 130 and control unit 110 and Ka frequency range radio frequency
Signal output port 160 connects, Ku frequency range power amplifier unit 140 and control unit 110 and Ku frequency range RF signal output mouth
170 connections.
For control unit 110 when receiving frequency range switching command, control intermediate-freuqncy signal selecting unit 120 switches work at present
Frequency range is Ka frequency range or Ku frequency range；When work at present frequency range is Ka frequency range, the letter that is inputted by signal input end of intermediate frequency mouth 150
Number input Ka frequency range power amplifier unit 130；When work at present frequency range is Ku frequency range, inputted by signal input end of intermediate frequency mouth 150
Signal inputs Ku frequency range power amplifier unit 140.
In the present embodiment, the control unit of airborne double frequency satellite power amplification system is connect with controlling terminal, is received and is carried out automatic control
The frequency range switching command of terminal processed, and according to the work at present frequency range of frequency range switching command selection system.Wherein, controlling terminal can
With but be not limited to the equipment such as personal computer, laptop, tablet computer, user initiates frequency range by control controlling terminal
Frequency range switching command is sent to airborne double frequency satellite power amplification system by switching command, controlling terminal, carries out work at present frequency range
Switching.In one embodiment, control unit is connect with controlling terminal by RS-422；Alternatively, control unit and controlling terminal
It is connected by Ethernet communication mode.
Wherein, control unit 110 is the control centre of airborne double frequency satellite power amplification system, and control unit and controlling terminal connect
It connects, receive frequency range switching command and work at present frequency range is selected according to frequency range switching command, specifically, if being referred to according to frequency range switching
Determination is enabled to need to be switched to Ka frequency range, then work at present frequency range is switched to Ka frequency by control unit control intermediate-freuqncy signal selecting unit
Section.Similarly, need to be switched to Ku frequency range if determining according to frequency range switching command, control unit controls intermediate-freuqncy signal selecting unit
Current working frequency range is switched to Ku frequency range.
When work at present frequency range is Ka frequency range, the signal inputted by signal input end of intermediate frequency mouth will be sent to Ka frequency range function
It puts unit and carries out up-conversion and enhanced processing；When work at present frequency range is Ku frequency range, the letter that is inputted by signal input end of intermediate frequency mouth
It number will be sent to Ku frequency range power amplifier unit and carry out up-conversion and enhanced processing.Wherein, in one embodiment, by intermediate-freuqncy signal
The signal of input port input includes intermediate-freuqncy signal (IF signal, intermediate frequency) and reference signal.
Further, in one embodiment, when work at present frequency range is Ka frequency range, IF signal and reference signal are from intermediate frequency
Signal input port inputs Ka frequency range power amplifier unit, obtains radiofrequency signal after handling via Ka frequency range power amplifier unit, then this is penetrated
Frequency signal is exported from Ka frequency range RF signal output mouth.
Further, when work at present frequency range is Ku frequency range, the IF signal frequency of input is 950~1700MHz, at this time
IF signal and reference signal pass through the radiofrequency signal (RF signal, Radio Frequency) that Ku frequency range power amplifier unit is handled
Frequency be 13.75~14.5GHz；When work at present frequency range is Ka frequency range, the IF signal frequency of input is 950~1950MHz,
At this point, the frequency for the radiofrequency signal that IF signal and reference signal are handled by Ka frequency range power amplifier unit is 29~30GHz.Its
In reference signal can be 50MHz or 10MHz.
In a specific embodiment, control unit 110 can be micro-control unit (Microcontroller Unit,
MCU), micro-control unit is also known as one chip microcomputer or single-chip microcontroller.
In the present embodiment, intermediate-freuqncy signal selecting unit is used to select work at present frequency range according to the instruction of control unit,
Work at present frequency range can be Ka frequency range or Ku frequency range.Signal input end of intermediate frequency mouth is for inputting intermediate-freuqncy signal and with reference to letter
Number.Ka frequency range RF signal output mouth is used to handle Ka frequency range power amplifier unit when work at present frequency range is Ka frequency range
To emission of radio frequency signals go out；Similarly, Ku frequency range RF signal output mouth is used in work at present frequency range be Ku frequency range
When, the emission of radio frequency signals that Ku frequency range power amplifier unit is handled is gone out.
In one embodiment, intermediate-freuqncy signal selecting unit receives frequency range switching command in control unit, according to frequency range
When switching command determination needs to switch to Ka frequency range, the power amplifier state of Ka frequency range power amplifier unit is switched to cancellation disabling, by Ku
The power amplifier state of frequency range power amplifier unit is switched to disabling；
Intermediate-freuqncy signal selecting unit receives frequency range switching command in control unit, determines needs according to frequency range switching command
When switching to Ku frequency range, the power amplifier state of Ku frequency range power amplifier unit is switched to cancellation disabling, by the function of Ka frequency range power amplifier unit
The state of putting is switched to disabling.
Control unit is sent when receiving frequency range switching command, according to frequency range switching command to intermediate-freuqncy signal selecting unit
Signal is controlled, control intermediate-freuqncy signal selecting unit switches work at present frequency range.Such as in one embodiment, control unit according to
When frequency range switching command determines that the frequency range for needing to be switched to is Ka frequency range, the control signal sent to intermediate-freuqncy signal selecting unit makes
Intermediate-freuqncy signal selecting unit opens the RF switch of Ka frequency range, and the power amplifier state of Ka frequency range power amplifier unit becomes cancelling disabling
(unmute), and the power amplifier state of Ku frequency range power amplifier unit becomes disabling (mute)；It is inputted under this state from intermediate-freuqncy signal single
The IF signal and reference signal of member input input Ka frequency range power amplifier unit, it is possible to understand that ground, Ku frequency range power amplifier unit cannot connect
IF signal and reference signal are received, i.e. work at present frequency range is switched to Ka frequency range.Further, IF signal and reference signal input
After Ka frequency range power amplifier unit, the radiofrequency signal obtained after up-conversion and enhanced processing is carried out via Ka frequency range power amplifier unit, by Ka
The output of frequency range RF signal output mouth.Similarly, if control unit needs to be switched to Ku frequency range according to the determination of frequency range switching command
When, it is similar with the step of being switched to Ka frequency range.
Further, in one embodiment, the power amplifier state of Ku frequency range power amplifier unit is Ku Band when cancelling disabling
BUC subelement will receive the reference signal of signal input end of intermediate frequency mouth input, the phaselocked loop lock of Ku Band BUC subelement
Fixed, power supply unit is powered Ku HPA subelement.At this point, IF signal input Ku Band BUC subelement carries out up-conversion
Processing obtains radiofrequency signal, then amplifies processing, finally obtained radiofrequency signal to radiofrequency signal by Ku HPA subelement
Launch by Ku frequency range RF signal output mouth.
In another embodiment, when the power amplifier state of Ku frequency range power amplifier unit is disabling, Ku Band BUC subelement will
The reference signal of signal input end of intermediate frequency mouth input, the phaselocked loop losing lock of Ku Band BUC subelement, power supply mould will not be received
Block stops powering to Ku HPA subelement.
Similarly, when the power amplifier state of Ka frequency range power amplifier unit is to cancel disabling, the phase lock loop locks of Ka BUC subelement,
Power supply unit is powered Ka HPA subelement；When the power amplifier state of Ka frequency range power amplifier unit is disabling, Ka BUC subelement
Phaselocked loop losing lock, power module stop to Ka HPA subelement power.
It is to be appreciated that in the present embodiment, when the power amplifier state of Ku frequency range power amplifier unit is to cancel disabled status, Ka
The power amplifier state of frequency range power amplifier unit is disabled status；When the power amplifier state of Ku frequency range power amplifier unit is disabled status, Ka frequency
The power amplifier state of section power amplifier unit is to cancel disabled status.
Above-mentioned airborne double frequency satellite power amplification system, if the power amplifier state of Ka frequency range power amplifier unit is to cancel disabling, Ku frequency range
When the power amplifier state of power amplifier unit is disabling, expression system work at present frequency range is Ka frequency range；If the function of Ku frequency range power amplifier unit
State is put to cancel disabling, when the power amplifier state of Ka frequency range power amplifier unit is disabling, indicates that system work at present frequency range is Ku frequency
Section.
Further, in one embodiment, as shown in Fig. 2, Ka frequency range power amplifier unit includes Ka Band BUC (Block
Up-Converter, up-conversion power amplifier) subelement and Ka HPA (High-power Amplifier, high power amplification
Device) subelement；Ku frequency range power amplifier unit includes Ku Band BUC subelement and Ku HPA subelement.
Wherein, satellite Modem (modem) the L-band signal exported is changed into radiofrequency signal and is transmitted to C wave by BUC
Section, Ku wave band or Ka band satellite.HPA is one kind of amplifier, for transmitting after amplifying signal power, output power be with
DBm is related to watt as measurement unit, can mutually convert.
As shown in Figure 2, Ka Band BUC subelement is connect with intermediate-freuqncy signal selecting unit, Ka HPA subelement with
The connection of Ka frequency range RF signal output mouth；Ku Band BUC subelement is connect with intermediate-freuqncy signal selecting unit, and Ku HPA is single
Member is connect with Ku frequency range RF signal output mouth.
In the present embodiment, if work at present frequency range is Ka frequency range, IF signal and reference signal are inputted by intermediate-freuqncy signal
Port inputs the Ka Band BUC subelement of Ka frequency range power amplifier unit, and Ka Band BUC subelement carries out up-conversion to IF signal
Radiofrequency signal after obtaining frequency conversion, and by the radiofrequency signal input Ka HPA subelement, Ka HPA subelement to radiofrequency signal into
Row amplification, the signal finally obtained are launched from Ka frequency range RF signal output mouth.
It is to be appreciated that if IF signal and reference signal are by signal input end of intermediate frequency when work at present frequency range is Ku frequency range
The Ku Band BUC subelement of mouth input Ku frequency range power amplifier unit, Ku Band BUC subelement carry out up-conversion to IF signal and obtain
Radiofrequency signal after to frequency conversion, and the radiofrequency signal is inputted into Ku HPA subelement, Ku HPA subelement carries out radiofrequency signal
Amplification, the signal finally obtained are launched from Ku frequency range RF signal output mouth.
In one embodiment, as shown in Fig. 2, above-mentioned airborne double frequency satellite power amplification system further includes monitoring port, control
Unit includes monitoring unit；The connection of the monitoring unit of monitoring port and control unit；Wherein, in the present embodiment, monitoring unit
Working condition inquiry instruction is received by monitoring port, obtains the working condition of system, and the working condition of system is passed through
Monitoring port is back to the controlling terminal connecting with system.
Wherein, in one embodiment, monitoring port supports RS-422 and Ethernet (Ethernet) communication mode to function
It puts and is monitored, it can be with the working condition of real-time detecting system such as complete machine temperature, output power；Can with switch operating frequency range,
Change gain size.
It therefore in the present embodiment, can be with when user wants working condition (such as work at present frequency range) of inquiry system
Working condition inquiry instruction is sent to monitoring unit by controlling terminal, working condition inquiry instruction is transmitted to by monitoring port
Monitoring unit, monitoring unit obtains the current working condition of system, and the current work state information of system is passed through monitoring client
Mouth is back to controlling terminal.
And in another embodiment, please continue to refer to Fig. 2, above-mentioned airborne double frequency satellite power amplification system further includes instruction
Lamp, indicator light are connect with control unit；Indicator light is used to indicate the working condition of system and the work at present frequency range of system.
In the present embodiment, indicator light can indicate whether current system is in normal operating conditions, also can indicate that current
Working frequency range.For example, in one embodiment, indicator light can be LED light；LED light distinguishes current work by different colors
Make frequency range and whether system breaks down.
Therefore, airborne double frequency satellite power amplification system in the present embodiment, when user wants to know about the working condition of system,
The state of system, intuitive and convenient can be directly known by the instruction state of indicator light.
In one embodiment, with continued reference to FIG. 2, airborne double frequency satellite power amplification system further includes power port, power supply
Unit；Power supply unit is connect with control unit, power port, Ka frequency range power amplifier unit and Ku frequency range power amplifier unit, power supply list
Member provides power supply for system.
Wherein, in one embodiment, power supply unit is AC-DC power supply unit, and power port supports exchange 115V, frequency
The input of 400Hz airplane power source.
In the present embodiment, work at present frequency range be Ka frequency range when, power module be Ka HPA subelement power, stop be
The power supply of Ku HPA subelement；When work at present frequency range is Ku frequency range, power module is the power supply of Ku HPA subelement, is stopped as Ka
The power supply of HPA subelement.
Above-mentioned airborne double frequency satellite power amplification system, control unit, intermediate-freuqncy signal selecting unit, Ka frequency range power amplifier unit, Ku
Frequency range power amplifier unit, signal input end of intermediate frequency mouth, Ka frequency range RF signal output mouth and Ku frequency range RF signal output
Mouthful.Above system had not only included Ka frequency range power amplifier unit, but also further included intermediate-freuqncy signal selecting unit including Ku frequency range power amplifier unit,
Intermediate-freuqncy signal selecting unit, which is controlled, by the control unit of the system selects work at present frequency range, therefore system according to the actual situation
It may be implemented to switch between Ka frequency range and Ku frequency range, when transoceanic course line in the world, aircraft needs in flight course
When wanting switch satellite communications band, the switching of power amplifier output frequency can be quickly completed, guarantees that communication is normal.
As shown in figure 3, for the structural schematic diagram of airborne double frequency satellite power amplification system in a specific embodiment, comprising: outer
Shell, internal circuit assembly, LED light, IF signal input port, Ku Band RF signal output port (above-mentioned Ku frequency range
RF signal output mouth), Ka Band RF signal output port (above-mentioned Ka frequency range RF signal output mouth), power end
Mouth and monitoring port.Internal circuit assembly include AC-DC power module (above-mentioned power supply unit), intermediate-freuqncy signal selecting unit,
MCU (above-mentioned control unit), Ku Band BUC subelement and Ku HPA subelement, Ka Band BUC subelement and Ka HPA
Subelement.
Ka frequency range is denoted as frequency range A, Ku frequency range is denoted as frequency range B, using work at present frequency range as frequency range A in the present embodiment,
For needing to be switched to channel B, the specific embodiment of switching power amplifier working frequency is described in further detail.
Situation is shown by LED light, judges current power amplifier work state for frequency range A.Or it by monitoring port, adopts
It is frequency range A with RS-422 Ethernet communication mode detection power amplifier work at present frequency range.
It is communicated using RS-422 Ethernet communication mode with MCU, sends frequency range switching command to MCU, selection is wanted
The frequency range of switching is frequency range B.The power amplifier state that MCU changes frequency range B is Unmute.
MCU sends control signal to intermediate-freuqncy signal selecting unit, and the radio frequency that intermediate-freuqncy signal selecting unit opens frequency range B is opened
It closes, sends IF signal and 10MHz or 50MHz reference signal to the corresponding BUC of frequency range B.
At this point, the phase lock loop locks of the BUC subelement of frequency range B, IF signal and LO signal (local oscillator, this
Shake signal) up-conversion is carried out, meanwhile, AC-DC power module powers to HPA subelement, and HPA subelement is to the RF signal after frequency conversion
It amplifies, launches finally by the waveguide mouth (Ku Band RF signal output port) of frequency range B output end.In this implementation
In example, after switching to Ku frequency range, input IF signal frequency is 950~1700MHz, and corresponding Ku Band RF signal frequency is
13.75~14.5GHz.
After switching to frequency range B, MCU can control the RF switch of intermediate-freuqncy signal selecting unit shutdown frequency range A, the BUC of frequency range A
IF signal and 10MHz or 50MHz reference signal, the phaselocked loop losing lock of frequency range A cannot be received, MCU sends instruction and closes HPA
Power supply, at this point, the BUC subelement of frequency range A is in mute state.
Meanwhile after switching to frequency range B, MCU can control LED light and be switched to be designated as the instruction color of frequency range B.
It is to be appreciated that switching to frequency range with by frequency range A in the embodiment that work at present frequency range needs to be switched to frequency range A for frequency range B
The embodiment of B is similar, therefore repeats no more.
In above-mentioned airborne double frequency satellite power amplification system, power amplifier complete machine supports exchange 115V, and frequency 400Hz airplane power source is direct
Input.The assembly of power amplifier internal circuit is equipped with Ku and Ka two-band up-conversion power amplifier unit, controls intermediate frequency selecting unit by MCU,
The free switching of Ku and Ka two-band may be implemented.The power amplifier unit of two kinds of frequency ranges is integrated within one device, entirely to defend
Star communication system builds the convenience provided on space and structure.Aircraft needs switch satellite communications band in flight course
When, the switching of power amplifier output frequency can be quickly completed by RS-422 or Ethernet communication mode, guaranteeing communication just
Often.
In one embodiment, the application also provides a kind of airborne double frequency satellite power amplifier method, comprising: control unit is receiving
When to frequency range switching command, controlling intermediate-freuqncy signal selecting unit switching work at present frequency range according to frequency range switching command is Ka frequency range
Or Ku frequency range.
When work at present frequency range is Ka frequency range, Ka frequency range power amplifier list is inputted by the signal that signal input end of intermediate frequency mouth inputs
Member；When work at present frequency range is Ku frequency range, Ku frequency range power amplifier unit is inputted by the signal that signal input end of intermediate frequency mouth inputs.
Further, in one embodiment, as shown in figure 4, needing to be switched to Ka frequency range for the instruction of frequency range switching command
Embodiment, the control unit of control unit is receiving frequency range switching command, and is determined according to frequency range switching command and need to cut
When shifting to Ka frequency range, control intermediate-freuqncy signal selecting unit opens the RF switch of Ka frequency range power amplifier unit, controls Ka frequency range power amplifier
The phase lock loop locks of the Ka BUC subelement of unit, control power supply unit are that the Ka HPA subelement of Ka frequency range is powered.
In the present embodiment, the IF signal of signal input end of intermediate frequency mouth input and reference signal (10MHz or 50MHz) input
10MHz or 50MHz, the LO signal that the phaselocked loop of IF signal and Ka Band BUC subelement generates at this time carry out up-conversion, obtain
RF signal after frequency conversion is exported to Ka HPA subelement, and Ka HPA subelement amplifies the RF signal after frequency conversion, finally leads to
Ka frequency range RF signal output mouth is crossed to launch.
The RF switch of intermediate-freuqncy signal selecting unit shutdown Ku frequency range power amplifier unit is controlled, control Ka frequency range power amplifier unit
The phaselocked loop losing lock of Ku Band BUC subelement, control power supply unit stop powering for the Ku HPA subelement of Ku frequency range.This
When, Ku Band BUC subelement cannot receive IF signal and reference signal, and control unit sends control instruction control electricity
Source unit stops the power supply to Ku HPA subelement.
Specific restriction about airborne double frequency satellite power amplifier method may refer to above for airborne double frequency satellite power amplifier
The restriction of system, details are not described herein.By above-mentioned airborne double frequency satellite power amplifier method, the power amplifier unit of two kinds of frequency ranges is integrated
Within one device, only not entire satellite communication system builds the convenience provided on space and structure, and aircraft flying
When needing switch satellite communications band during row, the switching of power amplifier output frequency can be quickly completed, is guaranteeing communication just
Often.
It should be understood that although each step in the flow chart of Fig. 4 is successively shown according to the instruction of arrow, this
A little steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these steps
It executes there is no the limitation of stringent sequence, these steps can execute in other order.Moreover, at least part in Fig. 4
Step may include that perhaps these sub-steps of multiple stages or stage are executed in synchronization to multiple sub-steps
It completes, but can execute at different times, the execution sequence in these sub-steps or stage, which is also not necessarily, successively to be carried out,
But it can be executed in turn or alternately at least part of the sub-step or stage of other steps or other steps.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of airborne double frequency satellite power amplification system, the system comprises:
Control unit, intermediate-freuqncy signal selecting unit, Ka frequency range power amplifier unit, Ku frequency range power amplifier unit, signal input end of intermediate frequency mouth,
Ka frequency range RF signal output mouth and Ku frequency range RF signal output mouth；
The intermediate-freuqncy signal selecting unit and the signal input end of intermediate frequency mouth, Ka frequency range power amplifier unit, Ku frequency range power amplifier unit
And control unit connection, the Ka frequency range power amplifier unit and described control unit and the Ka frequency range RF signal output
Mouth connection, the Ku frequency range power amplifier unit are connect with described control unit and the Ku frequency range RF signal output mouth；
Described control unit controls the intermediate-freuqncy signal selecting unit switching work at present frequency when receiving frequency range switching command
Section is Ka frequency range or Ku frequency range；
When work at present frequency range is Ka frequency range, the Ka frequency range function is inputted by the signal of signal input end of intermediate frequency mouth input
Put unit；When work at present frequency range is Ku frequency range, the Ku frequency is inputted by the signal of signal input end of intermediate frequency mouth input
Section power amplifier unit.
2. airborne double frequency satellite power amplification system according to claim 1, which is characterized in that the system also includes monitoring clients
Mouthful, described control unit includes monitoring unit；The connection of the monitoring unit of the monitoring port and described control unit；
The monitoring unit receives working condition inquiry instruction by the monitoring port, obtains the work shape of the system
State, and the working condition of the system is back to the controlling terminal connecting with the system by the monitoring port.
3. airborne double frequency satellite power amplification system according to claim 1, which is characterized in that the system also includes instructions
Lamp, the indicator light are connect with described control unit；
The indicator light is used to indicate the working condition of the system and the work at present frequency range of the system.
4. airborne double frequency satellite power amplification system according to claim 1, which is characterized in that the system also includes power ends
Mouth, power supply unit；
The power supply unit and described control unit, the power port, the Ka frequency range power amplifier unit and the Ku frequency range
Power amplifier unit connection, the power supply unit provide power supply for the system.
5. airborne double frequency satellite power amplification system according to any one of claims 1 to 4, it is characterised in that:
The intermediate-freuqncy signal selecting unit receives frequency range switching command in described control unit, according to the frequency range switching command
When determination needs to switch to Ka frequency range, the power amplifier state of the Ka frequency range power amplifier unit is switched to cancellation disabling, by the Ku
The power amplifier state of frequency range power amplifier unit is switched to disabling；
The intermediate-freuqncy signal selecting unit receives frequency range switching command in described control unit, according to the frequency range switching command
When determination needs to switch to Ku frequency range, the power amplifier state of the Ku frequency range power amplifier unit is switched to cancellation disabling, by the Ka
The power amplifier state of frequency range power amplifier unit is switched to disabling.
6. airborne double frequency satellite power amplification system according to claim 5, which is characterized in that the Ka frequency range power amplifier unit packet
Include Ka Band BUC subelement and Ka HPA subelement；The Ka Band BUC subelement and the intermediate-freuqncy signal selecting unit
Connection, the Ka HPA subelement are connect with the Ka frequency range RF signal output mouth；
The Ku frequency range power amplifier unit includes Ku Band BUC subelement and Ku HPA subelement；Ku Band BUC is single
First to connect with the intermediate-freuqncy signal selecting unit, the Ku HPA subelement and the Ku frequency range RF signal output mouth connect
It connects.
7. airborne double frequency satellite power amplification system according to claim 6, which is characterized in that the Ku frequency range power amplifier unit
Power amplifier state is when cancelling disabling, and the phase lock loop locks of the Ku Band BUC subelement, power supply unit is to Ku HPA
Unit is powered；
When the power amplifier state of the Ku frequency range power amplifier unit is disabling, the phaselocked loop losing lock of the Ku Band BUC subelement, institute
Power module is stated to stop powering to the Ku HPA subelement.
8. airborne double frequency satellite power amplification system according to any one of claims 1 to 4, which is characterized in that the control
Unit is connect with controlling terminal by RS-422；Alternatively, described control unit and controlling terminal pass through Ethernet communication mode
Connection.
9. a kind of airborne double frequency satellite power amplifier method characterized by comprising
Control unit controls the intermediate-freuqncy signal according to the frequency range switching command and selects list when receiving frequency range switching command
Member switching work at present frequency range is Ka frequency range or Ku frequency range；
When work at present frequency range is Ka frequency range, Ka frequency range power amplifier unit is inputted by the signal that signal input end of intermediate frequency mouth inputs；
When work at present frequency range is Ku frequency range, Ku frequency range power amplifier unit is inputted by the signal that signal input end of intermediate frequency mouth inputs.
10. airborne double frequency satellite power amplifier method according to claim 9, which is characterized in that described control unit is receiving
To frequency range switching command, and determine that control intermediate-freuqncy signal is selected when needing to switch to Ka frequency range according to the frequency range switching command
Unit opens the RF switch of Ka frequency range, controls the phase lock loop locks of the Ka Band BUC subelement of Ka frequency range power amplifier unit, control
Power supply unit processed is that the Ka HPA subelement of Ka frequency range is powered；
The RF switch for controlling intermediate-freuqncy signal selecting unit shutdown Ku frequency range, controls the Ku Band BUC of Ku frequency range power amplifier unit
The phaselocked loop losing lock of subelement, control power supply unit stop powering for the Ku HPA subelement of Ku frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910131007.XA CN109981159A (en) | 2019-02-21 | 2019-02-21 | Airborne double frequency satellite power amplification system, airborne double frequency satellite power amplifier method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910131007.XA CN109981159A (en) | 2019-02-21 | 2019-02-21 | Airborne double frequency satellite power amplification system, airborne double frequency satellite power amplifier method |
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| Publication Number | Publication Date |
|---|---|
| CN109981159A true CN109981159A (en) | 2019-07-05 |
Family
ID=67077220
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910131007.XA Withdrawn CN109981159A (en) | 2019-02-21 | 2019-02-21 | Airborne double frequency satellite power amplification system, airborne double frequency satellite power amplifier method |
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| Country | Link |
|---|---|
| CN (1) | CN109981159A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838868A (en) * | 2019-10-25 | 2020-02-25 | 北京爱科迪通信技术股份有限公司 | Kaku double-frequency-band portable satellite earth station capable of being switched rapidly |
| CN111083687A (en) * | 2019-12-30 | 2020-04-28 | 北京悦航天翼电子信息技术有限公司 | Dual-mode airborne satellite communication modulation-demodulation terminal |
| CN111698021A (en) * | 2020-04-30 | 2020-09-22 | 彩虹无人机科技有限公司 | Ku and Ka dual-frequency satellite communication link equipment |
| CN112332905A (en) * | 2020-11-04 | 2021-02-05 | 睿高(广州)通信技术有限公司 | Solid-state power amplifier device of binary channels Ka frequency channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203491979U (en) * | 2013-08-13 | 2014-03-19 | 安徽天兵电子科技有限公司 | Frequency conversion power amplifier |
| US20180069621A1 (en) * | 2016-09-08 | 2018-03-08 | Asia Satellite Telecommunications Company Limited | Dual-band communication satellite system and method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203491979U (en) * | 2013-08-13 | 2014-03-19 | 安徽天兵电子科技有限公司 | Frequency conversion power amplifier |
| US20180069621A1 (en) * | 2016-09-08 | 2018-03-08 | Asia Satellite Telecommunications Company Limited | Dual-band communication satellite system and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838868A (en) * | 2019-10-25 | 2020-02-25 | 北京爱科迪通信技术股份有限公司 | Kaku double-frequency-band portable satellite earth station capable of being switched rapidly |
| CN110838868B (en) * | 2019-10-25 | 2022-05-06 | 北京爱科迪通信技术股份有限公司 | Kaku double-frequency-band portable satellite earth station capable of being switched rapidly |
| CN111083687A (en) * | 2019-12-30 | 2020-04-28 | 北京悦航天翼电子信息技术有限公司 | Dual-mode airborne satellite communication modulation-demodulation terminal |
| CN111698021A (en) * | 2020-04-30 | 2020-09-22 | 彩虹无人机科技有限公司 | Ku and Ka dual-frequency satellite communication link equipment |
| CN111698021B (en) * | 2020-04-30 | 2022-04-12 | 彩虹无人机科技有限公司 | Ku and Ka dual-frequency satellite communication link equipment |
| CN112332905A (en) * | 2020-11-04 | 2021-02-05 | 睿高(广州)通信技术有限公司 | Solid-state power amplifier device of binary channels Ka frequency channel |
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Application publication date: 20190705 |