CN109194360A - A kind of 16 channel number word multi-beam receiving and transmitting front end components - Google Patents
A kind of 16 channel number word multi-beam receiving and transmitting front end components Download PDFInfo
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- CN109194360A CN109194360A CN201811208251.3A CN201811208251A CN109194360A CN 109194360 A CN109194360 A CN 109194360A CN 201811208251 A CN201811208251 A CN 201811208251A CN 109194360 A CN109194360 A CN 109194360A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
Abstract
The present invention relates to transmitting-receiving frequency conversion Channel Technology fields, specifically a kind of 16 channel number word multi-beam receiving and transmitting front end component, including receiving antenna, transmitting antenna, 16 tunnel receiving channels, 1 road transmission channel, 3 drive tests examination clock module, 1 tunnel local oscillator module, radiating module and energy supply control module;16 tunnel receiving channel transmission channel receiving antenna signals are connected, transmission channel is connected with transmitting antenna signal, 16 tunnel receiving channels are connected with radiating module, local oscillator module is connected with transmission channel signal, energy supply control module is powered with transmission channel, 1 tunnel local oscillator module and 3 drive tests examination clock module respectively, 3 drive tests try clock module and 1 tunnel local oscillator module is frequency source, and each structure is layer stereo Hard link.The high-density integrated of Ku wave band multi-channel digital multi-beam receiving and transmitting front end component is realized, small in size, light-weight, stability is good, meets the multiple requirements of multi-beam transmitting-receiving test.
Description
Technical field
It is that one kind is mainly mixed using MMIC bare chip with PCB circuit the present invention relates to transmitting-receiving frequency conversion Channel Technology field
Design, the 16 channel number word multi-beam receiving and transmitting front end components realized by single-conversion mode.
Background technique
Multibeam technique is generally used for multibeam echosounding, is underwater acoustic technology, computer technology, navigator fix technology sum number
The multiple technologies such as word sensor technology it is highly integrated;Multi-beam test macro is a kind of complex combination system of multisensor
System is modern signal processing technology, high-performance computer technology, high-resolution display technology, high-precision location technique, digitlization biography
More technologies such as sensor technology and other related new and high technologies it is highly integrated.
Receiving and transmitting front end component uses the design of frequency conversion, and it is existing that frequency conversion front end, which is radio frequency part and the good tie of baseband portion,
For radio communication, the indispensable a part of radio detection.The size of radio receiver-transmitter (such as antenna) connects with it
It receives directly proportional with the radio wavelength of transmitting.Our low frequency signal need to be by primary or multiple frequency conversion, extremely by frequency spectrum shift
Radio frequency part, the antenna for reusing suitable dimension are launched;The radio wave that antenna receives passes through primary or multiple change
Frequently, by frequency spectrum shift to intermediate-frequency section, convenient for late-class circuit processing analysis.
Receiving and transmitting front end under traditional approach generally includes reception, transmitting and the big standalone module of local oscillator three.Receiving module passes through
Preselection filter, which is selected, needs received radio frequency small-signal, is converted to after being amplified small-signal by clipping low-noise amplifier
Intermediate frequency, then the intermediate-freuqncy signal of needs is extracted by intermediate-frequency filter, it send to signal processing module demodulation analysis;Transmitting module will
The intermediate-freuqncy signal that base band generates is converted to radio frequency, then selects the radiofrequency signal for needing to emit, amplified output by filtering
To antenna;Local oscillator module provides required oscillating driving signal for receiving module and transmitting module.In face of various work
Environment, the receiving and transmitting front end under traditional approach have exposed great limitation, mainly include the following:
1, the receiving and transmitting front end of traditional approach is divided into three reception, transmitting, local oscillator standalone modules, and modules have a single function, and integrates
Low, systems bulky is spent, Circuit assembly is complicated;
2, the receiving and transmitting front end part category of traditional approach, number of devices are more, assembly method multiplicity, can under complicated use environment
Great challenge is received by property, stability;
3, the receiving and transmitting front end local oscillation signal of traditional approach is generated using conventional locking phase ring mode, and phase noise is lower, cannot reach
To the test request of target detection under multi-beam test condition;
4, the receiving and transmitting front end channel of traditional approach is few, and use scope is narrow, can not achieve multiple target, the test of wide-scene.
Summary of the invention
It is currently proposed a kind of with MMIC bare chip and PCB electricity the present invention overcomes the limitation of traditional approach receiving and transmitting front end
Road is a kind of 16 channel number word multi-beam receiving and transmitting front end component of Ku wave band of core, to realize the above-mentioned technical purpose, of the invention
Technical solution is as follows:
A kind of 16 channel number word multi-beam receiving and transmitting front end components, it is characterised in that: connect including receiving antenna, transmitting antenna, 16 tunnels
Receive channel, 1 road transmission channel, 3 drive tests examination clock module, 1 tunnel local oscillator module, radiating module and energy supply control module;Described 16
Road receiving channel transmission channel receiving antenna signal is connected, and the transmission channel is connected with transmitting antenna signal, and 16 tunnel connects
It receives channel to be connected with radiating module, the local oscillator module is connected with the transmission channel signal, the energy supply control module difference
With the examination clock module power supply of transmission channel, 1 tunnel local oscillator module and 3 drive tests, the 3 drive test examination clock module and 1 tunnel local oscillator module
For frequency source, each structure is layer stereo Hard link.
Receiving antenna received signal, respectively through single-conversion, realizes that Ku band signal to intermediate frequency is believed through 16 tunnel receiving channels
Transformation between number;1 road transmission channel by single-conversion, realize intermediate frequency L-band signal to the transformation between Ku band signal,
Then it is directly connected to transmitting antenna;The test clock signal of frequency point needed for test clock meets externally 3 tunnels of output, facilitates rear class
Processing;Local oscillation signal provides the frequency conversion local oscillation signal of high phase noise for transmitting link;Power control part is divided into LDO power supply, real
Show external input voltage to pressure stabilizing, filtering, the conversion between internal supply voltage.
The receiving antenna, transmitting antenna, 16 tunnel receiving channels, transmission channel, 3 drive tests examination clock module and 1 tunnel local oscillator
Module is multilayered structure, and first layer is receiving antenna and transmitting antenna, and receiving antenna, transmitting antenna are mounted in cavity;It is described
Cavity refers to according to the cavity received and transmitting antenna characteristic Simulation obtains, between length, width and height and transmitting antenna and receiving antenna
The index of parting bead length, width and height, cavity principal security receiving antenna and transmitting antenna and the isolation for receiving transmitting antenna, the second layer
For transmission channel, the radio frequency part of 16 tunnel receiving channels, i.e. front end soft substrate part and energy supply control module, third layer is
Intermediate frequency output, intermediate frequency input and 3 drive tests examination clock module and local oscillator module, the intermediate frequency output and 16 tunnel receiving channel signal phases
Even, the intermediate frequency input is connected with transmission channel signal;4th layer includes radiating module;Power supply and control signal are logical between each layer
Miniature low-frequency connector is crossed to slotting interconnection, radiofrequency signal is interconnected by RF isolation;It is main inside each layer to be realized by via hole
Interconnection.
The radio frequency part of the second layer is high frequency section, and the high frequency section is using MMIC bare chip circuit as core, by Ku wave
All MMIC bare chips of section frequency conversion section, thin film circuit High Density Integration are on soft substrate circuit;Third layer is intermediate-frequency section,
The intermediate-frequency section, using the Surface Mount technique of mature and reliable, reduces assembling difficulty, improves system using multiplayer microwave plate as carrier
Stability.
MMIC bare chip circuit includes amplification, filtering, mixing, the coupling for emitting link Ku band signal;Receives link Ku
Clipping, amplification, filtering and the mixing of band signal;Local oscillator function divides function point, amplification and the power-sensing circuit of link;16 connect
It receives channel and be divided to two cavitys, 8 channels of each cavity, each independent small cavity in channel, interchannel separates with parting bead, improvement
The isolation of interchannel.The independent cavity of transmission channel guarantees the isolation of transceiver channel with the non-coplanar design of receiving channel
It is required that.
Local oscillation signal is Ku band signal, by many times frequency multiplication, send after filter and amplification again to frequency mixer with it is corresponding
Signal carries out frequency transformation.
Energy supply control module in the second layer includes pcb board, LDO power module circuitry, electric source filter circuit, control electricity
Road, cavity and external low frequency interface.
Frequency changer circuit part includes intermediate frequency input, the intermediate frequency output of the radio frequency part and third layer of the second layer, the frequency conversion
Circuit includes soft base sheet, pcb board, small cavity, internal parting bead, large cavity, receives link, emits link and local oscillator link,
Middle receives link local oscillator is provided by transmitting link couples.
The laminated construction design is divided according to signal working frequency height, signal type difference, circuit function difference
Layer zoning design.The power supply and control circuit are low-frequency channel, handle analog voltage current signal and Digital Logic letter respectively
Number, topology design is power supply subregion and control logic subregion.Ku wave band processing circuit is high-frequency circuit, is medium frequency electric after frequency conversion
Road, topology design are radio frequency and the big subregion of intermediate frequency two: radio frequency subregion is using soft substrate circuit as carrier, by MMIC bare chip to Ku
Band signal is filtered amplification and frequency transformation, realizes multichannel Miniaturization Design, will be placed on the printing electricity of same level
Road decomposes on multiple horizontal planes of spatial vertical, realizes three dimensional topology by the perpendicular interconnection of interlayer;At intermediate frequency subregion
Signal of the signal of reason after radio frequency subregion Ku frequency range down coversion, therefore using multiplayer microwave plate as carrier, using mature and reliable
Surface Mount technique, reduce assembling difficulty, improve the stability of system.In order to fully ensure that each road amplitude-phase consistency, design of Simulation
All symmetrical structures, each channel are laid out using isometric line.
The present invention has the advantages that
The high-density integrated of Ku wave band multi-channel digital multi-beam receiving and transmitting front end component is realized, it is small in size, it is light-weight, stablize
Property it is good, meet multi-beam transmitting-receiving test multiple requirements.
The application mainly completes linear FM signal frequency conversion and power amplification, completes radar multi-channel back wave and receives signal
Amplification, frequency conversion, filtering, amplitude adjustment, final output signal are acquired to data.The reception and transmitting of dual-mode antenna realization signal;
Frequency source provides coherent clock source for each module;Radiating module provides good heat dissipation to entire component.Having property of transmission channel
It can exception monitoring function;The pitching of transmitting antenna coverage area is to 40 °, 3 ° of orientation.Receiving portion is 16 receiving channels, antenna
Half tactical deployment of troops is used in level, each 8 receiving channels in left and right, which pitch up, forms array, realizes pitching to sweeping using DBF technology
It retouches.
Film filter circuit size is small, light-weight, insertion loss is small, temperature stability is good;The intermediate-frequency section uses
Pcb board, filter customization, size is small, light-weight, performance is stable, is convenient for assembly, does not have to debugging.
16 channel number word multi-beam receiving and transmitting front end components, receives link are single-conversion mode, directly believe Ku wave band
Number it is converted into 0 ~ 20MHz signal, is advantageous in that design link is simple, it is few using device, substantially increase system stability.
Power supply and control section use the LDO power module design scheme of mature and reliable, and output is supplied to the power supply of rear class
Stability is high, and ripple is small, avoids the problem that switch can be brought spuious using DC-DC power source.
Receiving channel local oscillation signal is provided by transmission channel output coupling, enormously simplifies design, makes entire component knot
Structure simplifies, and stability improves, and volume becomes smaller.
The high-density integrated of Ku wave band multi-channel digital multi-beam receiving and transmitting front end component is realized, it is small in size, it is light-weight,
Strong environmental adaptability, the reliability and stability that the system that improves works under various environmental conditions meet multi-beam transmitting-receiving
The future developing trend of front end assemblies.
Detailed description of the invention
Fig. 1 is composition block diagram of the present invention.
Fig. 2 is record principle block diagram of the present invention.
Fig. 3 is emission principle block diagram of the present invention.
Fig. 4 is frequency source functional block diagram of the present invention.
Fig. 5 is that local oscillator function of the present invention divides functional block diagram.
Specific embodiment
16 channel number word multi-beam receiving and transmitting front end components of one kind include receiving antenna, transmitting antenna, 16 tunnel receiving channels, 1
Road transmission channel, 3 drive tests examination clock module, 1 tunnel local oscillator module, radiating module and energy supply control module;16 tunnel receives logical
Road transmission channel receiving antenna signal be connected, the transmission channel is connected with transmitting antenna signal, 16 tunnel receiving channel and
Radiating module is connected, and the local oscillator module is connected with the transmission channel signal, and the energy supply control module is logical with transmitting respectively
Road, 1 tunnel local oscillator module and the examination clock module power supply of 3 drive tests, the 3 drive test examination clock module and 1 tunnel local oscillator module are frequency source,
Each structure is layer stereo Hard link.
Receiving antenna received signal, respectively through single-conversion, realizes that Ku band signal to intermediate frequency is believed through 16 tunnel receiving channels
Transformation between number;1 road transmission channel by single-conversion, realize intermediate frequency L-band signal to the transformation between Ku band signal,
Then it is directly connected to transmitting antenna;The test clock signal of frequency point needed for test clock meets externally 3 tunnels of output, facilitates rear class
Processing;Local oscillation signal provides the frequency conversion local oscillation signal of high phase noise for transmitting link;Power control part is divided into LDO power supply, real
Show external input voltage to pressure stabilizing, filtering, the conversion between internal supply voltage.
The receiving antenna, transmitting antenna, 16 tunnel receiving channels, transmission channel, 3 drive tests examination clock module and 1 tunnel local oscillator
Module is multilayered structure, and first layer is receiving antenna and transmitting antenna, and receiving antenna, transmitting antenna are mounted in cavity;It is described
Cavity refers to according to the cavity received and transmitting antenna characteristic Simulation obtains, between length, width and height and transmitting antenna and receiving antenna
The index of parting bead length, width and height, cavity principal security receiving antenna and transmitting antenna and the isolation for receiving transmitting antenna, the second layer
For transmission channel, the radio frequency part of 16 tunnel receiving channels, i.e. front end soft substrate part and energy supply control module, third layer is
Intermediate frequency output, intermediate frequency input and 3 drive tests examination clock module and local oscillator module, the intermediate frequency output and 16 tunnel receiving channel signal phases
Even, the intermediate frequency input is connected with transmission channel signal;4th layer includes radiating module;Power supply and control signal are logical between each layer
Miniature low-frequency connector is crossed to slotting interconnection, radiofrequency signal is interconnected by RF isolation;It is main inside each layer to be realized by via hole
Interconnection.
The radio frequency part of the second layer is high frequency section, and the high frequency section is using MMIC bare chip circuit as core, by Ku wave
All MMIC bare chips of section frequency conversion section, thin film circuit High Density Integration are on soft substrate circuit;Third layer is intermediate-frequency section,
The intermediate-frequency section, using the Surface Mount technique of mature and reliable, reduces assembling difficulty, improves system using multiplayer microwave plate as carrier
Stability.
MMIC bare chip circuit includes amplification, filtering, mixing, the coupling for emitting link Ku band signal;Receives link Ku
Clipping, amplification, filtering and the mixing of band signal;Local oscillator function divides function point, amplification and the power-sensing circuit of link;16 connect
It receives channel and be divided to two cavitys, 8 channels of each cavity, each independent small cavity in channel, interchannel separates with parting bead, improvement
The isolation of interchannel.The independent cavity of transmission channel guarantees the isolation of transceiver channel with the non-coplanar design of receiving channel
It is required that.
Local oscillation signal is Ku band signal, by many times frequency multiplication, send after filter and amplification again to frequency mixer with it is corresponding
Signal carries out frequency transformation.
Energy supply control module in the second layer includes pcb board, LDO power module circuitry, electric source filter circuit, control electricity
Road, cavity and external low frequency interface.
Frequency changer circuit part includes intermediate frequency input, the intermediate frequency output of the radio frequency part and third layer of the second layer, the frequency conversion
Circuit includes soft base sheet, pcb board, small cavity, internal parting bead, large cavity, receives link, emits link and local oscillator link,
Middle receives link local oscillator is provided by transmitting link couples.
The laminated construction design is divided according to signal working frequency height, signal type difference, circuit function difference
Layer zoning design.The power supply and control circuit are low-frequency channel, handle analog voltage current signal and Digital Logic letter respectively
Number, topology design is power supply subregion and control logic subregion.Ku wave band processing circuit is high-frequency circuit, is medium frequency electric after frequency conversion
Road, topology design are radio frequency and the big subregion of intermediate frequency two: radio frequency subregion is using soft substrate circuit as carrier, by MMIC bare chip to Ku
Band signal is filtered amplification and frequency transformation, realizes multichannel Miniaturization Design, will be placed on the printing electricity of same level
Road decomposes on multiple horizontal planes of spatial vertical, realizes three dimensional topology by the perpendicular interconnection of interlayer;At intermediate frequency subregion
Signal of the signal of reason after radio frequency subregion Ku frequency range down coversion, therefore using multiplayer microwave plate as carrier, using mature and reliable
Surface Mount technique, reduce assembling difficulty, improve the stability of system.In order to fully ensure that each road amplitude-phase consistency, design of Simulation
All symmetrical structures, each channel are laid out using isometric line.
The beneficial effects of adopting the technical scheme are that realizing the transmitting-receiving of Ku wave band multi-channel digital multi-beam
The high-density integrated of front end assemblies, small in size, light-weight, stability is good, and the various aspects for meeting multi-beam transmitting-receiving test are wanted
It asks.
The application mainly completes linear FM signal frequency conversion and power amplification, completes radar multi-channel back wave and receives signal
Amplification, frequency conversion, filtering, amplitude adjustment, final output signal are acquired to data.The reception and transmitting of dual-mode antenna realization signal;
Frequency source provides coherent clock source for each module;Radiating module provides good heat dissipation to entire component.Having property of transmission channel
It can exception monitoring function;The pitching of transmitting antenna coverage area is to 40 °, 3 ° of orientation.Receiving portion is 16 receiving channels, antenna
Half tactical deployment of troops is used in level, each 8 receiving channels in left and right, which pitch up, forms array, realizes pitching to sweeping using DBF technology
It retouches.
Film filter circuit size is small, light-weight, insertion loss is small, temperature stability is good;The intermediate-frequency section uses
Pcb board, filter customization, size is small, light-weight, performance is stable, is convenient for assembly, does not have to debugging.
16 channel number word multi-beam receiving and transmitting front end components, receives link are single-conversion mode, directly believe Ku wave band
Number it is converted into 0 ~ 20MHz signal, is advantageous in that design link is simple, it is few using device, substantially increase system stability.
Power supply and control section use the LDO power module design scheme of mature and reliable, and output is supplied to the power supply of rear class
Stability is high, and ripple is small, avoids the problem that switch can be brought spuious using DC-DC power source.
Receiving channel local oscillation signal is provided by transmission channel output coupling, enormously simplifies design, makes entire component knot
Structure simplifies, and stability improves, and volume becomes smaller.
The high-density integrated of Ku wave band multi-channel digital multi-beam receiving and transmitting front end component is realized, it is small in size, it is light-weight,
Strong environmental adaptability, the reliability and stability that the system that improves works under various environmental conditions meet multi-beam transmitting-receiving
The future developing trend of front end assemblies.
It is illustrated with reference to the accompanying drawing:
As shown in Fig. 1 composition block diagram, 16 channel number word multi-beam receiving and transmitting front end components mainly include Anneta module, receiving channel mould
Block, transmission channel module, local oscillator module, radiating module.Product is using modular mentality of designing by each part mentioned above according to not
Same function carries out zoning design.
Transmission channel module, using high local oscillator local frequency, by the intermediate-freuqncy signal Direct conversion of input to Ku wave band.It is mixed
Band stray is inhibited using cavity body filter and microstrip filter after frequency, link final stage is real using wave detector and comparator
Existing power detection output function, comprehensively considers each filter and other device sizes to carry out structure matching.
Receiving channel is completed to receive radar multi-channel back wave the amplification of signal, frequency conversion, filtering, amplitude adjustment, last defeated
Signal is acquired to data out, is mixed down the Ku band signal received with the local oscillation signal that transmitting link couples come in link
It is converted to intermediate-freuqncy signal, then passes through amplification, filtering, adjustable attenuation output.It is realized using two-stage numerical control attenuation to letter in link
The adjustable attenuation of number 40dB.
Frequency source module provides coherent clock source for modules, altogether includes 4 frequency sources, frequency source is with reference to use
100MHz constant-temperature crystal oscillator, function divide the AD sampled clock signal for generating 10MHz test clock signal and 50MHz after dividing all the way;One
Road takes 5 multiplied frequency harmonics, amplification, filtering, amplification to filter the DA for taking 4 multiplied frequency harmonics to generate 2000MHz sampling again by amplification, filtering
Clock amplifies later, filters output;DA sampling clock after 50MHz signal and function point that local oscillation signal is generated by frequency dividing is believed
Number mixing first generate 2050MHz signal, then by filtering, amplification, filtering, amplification filtering take 2 multiplied frequency harmonics obtain 4.1GHz letter
Number, the local oscillation signal to the 16.4GHz for reaching needs after signal filtering by the way of 4 frequencys multiplication.
Anneta module includes a transmitting antenna and 16 receiving antennas, and the pitching of transmitting antenna coverage area is to 40 °, orientation
To 3 °.Half tactical deployment of troops is used in receiving antenna level, each 8 receiving channels in left and right, which pitch up, forms array, real using DBF technology
Show pitching to scanning.
Radiating module mainly includes 4 fans, and entire module dissipation is big, the power amplifier hair that wherein transmitting module uses
Heat is big, needs to radiate in time, using the drip-proof fan, can not only guarantee the timely export of heat, while meeting airtight
Design requirement.
As shown in Fig. 2, the receiving channel is by limiter 1, amplifier 1, filter 1, frequency mixer 1, filter 2, amplification
Decline 1, numerical-control attenuator 2, amplifier 4, π of device 2, numerical-control attenuator 1, amplifier 3, π declines 2, amplifier 5, balanced device 1, filter
3, decline 3, amplifier 6, π of π declines 4 compositions.The input of the limiter 1 terminates receiving antenna, and output terminates the amplifier 1
Input terminal, it carries out clipping to receiving antenna received signal, protects rear class device;The output of the amplifier 1 terminates filtering
The input terminal of device 1 is amplified to signal is received;The input terminal of the output termination frequency mixer 1 of the filter 1, to amplifier 1
Amplified signal is filtered;The input terminal of the output termination filter 2 of the frequency mixer 1;The output end of the filter 2
The input terminal for connecing amplifier 2 is filtered the signal after mixing;The output termination lockhole decaying of the amplifier 2
The input terminal of device 1 amplifies the output signal of filter 2;The output of the numerical-control attenuator 1 terminates amplifier 3
Input terminal carries out numerical control attenuation control to signal;The amplifier 3 output termination π decline 1 input terminal;The π declines 1
The input terminal of output termination numerical-control attenuator 2;The numerical-control attenuator 2 is the input terminal of output termination amplifier 4, to signal
Carry out second of numerical control attenuation control;The amplifier 4 output termination π decline 2 output end;The π decline 2 output termination put
The input terminal of big device 5;The output end of the output termination balanced device 1 of the amplifier 5;The output of the balanced device 1 terminates filtering
The input terminal of device 3 carries out equilibrium treatment to signal;The filter 3 output termination π decline 3 input terminal;The π declines 3
The input terminal of output termination amplifier 6;The amplifier 6 output termination π decline 4 input terminal, signal is amplified;Institute
State π decline 4 output end rear class IF board, for rear class processing board processing use.
As shown in figure 3, the transmission channel is declined 6, temperature compensation attenuator by decline 5, amplifier 8, π of filter 4, amplifier 7, π
1, frequency mixer 2, filter 6, π decline 8, amplifier 11, the π of 7, amplifier 10, filter 5, amplifier 9, filter 7, π that decline decline 9, put
Big device 12, filter 8, amplifier 13, coupler 1 form.The input termination external signal input of the filter 4, output
The input terminal for terminating amplifier 7, is filtered external input signal;The amplifier 7 output termination π decline 5 it is defeated
Enter end, signal is amplified;The π decline 5 output termination amplifier 8 input terminal, to signal carry out high or low power control
And improve the matching between dual-stage amplifier cascade;The amplifier 8 output termination π decline 6 input terminal, to signal carry out again
Amplification;The π decline 6 output termination temperature compensation attenuator 1 input terminal;The output termination frequency mixer 2 of the temperature compensation attenuator 1
IF input terminal guarantees size stability of the signal under normal three temperature state of height;The input of the filter 6 terminates local oscillator module
The output end of 16.4GHz, output termination π decline 7 input terminal, local oscillation signal is filtered;The π decline 7 output termination
The input terminal of amplifier 10 controls local oscillation signal size and improves 10 input terminal of amplifier matching standing wave;The amplifier 10
The LO input terminal of output termination frequency mixer 2, to local oscillation signal amplifier;The RF output of the frequency mixer 2 terminates the defeated of filter 5
Enter end;The output of the filter 5 terminates 9 input terminal of amplifier, is filtered to mixed signal;The amplifier 9 it is defeated
The input terminal for terminating filter 7 out, amplifies mixed signal;The filter 7 output termination π decline 8 input terminal,
Signal is filtered again;The π decline 8 output termination amplifier 11 input terminal;The output termination π of the amplifier 11 declines 9
Input terminal, to signal amplify;The π decline 9 output termination amplifier 12 input terminal;The output of the amplifier 12 terminates
The input terminal of filter 8 amplifies signal, guarantees that post-amplifier can work normally;The output termination of the filter 8 is put
The input terminal of big device 13 guarantees that the signal for entering rear class filtering device is as clean as possible;The output of the amplifier 13 terminates coupling
The input terminal of device 1;Antenna input is penetrated in the output end sending and receiving of the coupler 1.
As shown in figure 4, the frequency source module is filtered by crystal oscillator 1, SAW filter 1, power splitter 6, amplifier 16, sound table
Device 2, SAW filter 3, amplifier 18, SAW filter 4, amplifier 19, SAW filter 5, power splitter 7, is put amplifier 17
Big device 20, SAW filter 6, filter 11, amplifier 21, filter 12, frequency divider 1, filter 10, filter 13, filtering
Device 14, frequency mixer 3, SAW filter 7, amplifier 22, SAW filter 8, SAW filter 9, amplifier 23, filter 15,
Filter 16, filter 17, filter 18, frequency multiplier 1 form.The input of the output termination SAW filter 1 of the crystal oscillator 1
End provides reference signal to whole system;The input terminal of the output termination power splitter 6 of the SAW filter 1;The power splitter
The input terminal of 6 a certain output termination amplifier 16, makes reference, another output terminates frequency divider 1 for rear class 2GHz clock signal
Input terminal, make reference for rear class 10MHz and 50MHz clock signal;The output termination SAW filter 2 of the amplifier 16
Input terminal;The input terminal of the output termination amplifier 17 of the SAW filter 2, takes 500MHz to the amplified signal of prime
Harmonic signal;The input terminal of the output termination SAW filter of the amplifier 17, puts the harmonic signal of 500MHz
Greatly;The input terminal of the output termination amplifier 18 of the SAW filter 3, filters prime signal again;The amplifier 18
Output terminate 4 input terminal of SAW filter, saturation amplification is carried out to prime signal, facilitates the extraction of rear class harmonic signal;Institute
The input terminal for stating the output termination amplifier 19 of SAW filter 4, the harmonic signal of 2GHz is taken to prime signal;The amplification
The input terminal of the output termination SAW filter 5 of device 19, amplifies prime signal;The output of the SAW filter 5 terminates function
The input terminal for dividing device 7, is filtered signal again;The input terminal of a certain output termination amplifier 20 of the power splitter 7, mentions
External 2GHz clock signal is supplied, the input terminal of another output termination amplifier 21 is supplied to the use of rear class 16.4GHz signal;
The input terminal of the output termination SAW filter 6 of the amplifier 20;The output termination filter 11 of the SAW filter 6
Input terminal;The output end of the filter 11 externally exports 2GHz clock signal;The output of the amplifier 21 terminates filter
12 input terminal;The LO input terminal of the output termination frequency mixer 3 of the filter 12;The a certain output of the frequency divider 1 terminates
Filter 10;The output end of the filter 10 externally exports 10MHz signal;Another output of frequency divider 1 terminates filter 13;
The output end of filter 13 externally exports 50MHz clock signal;The third road output termination filter 14 of frequency divider 1;The filter
The IF input terminal of the output termination frequency mixer 3 of wave device 14;The input terminal of the output termination SAW filter 7 of the frequency mixer 3, it is preceding
Grade two paths of signals mixing generates 2.05GHz signal;The input terminal of the output termination amplifier 22 of the SAW filter 7, to mixed
Signal after frequency is filtered;The input terminal of the output termination SAW filter 8 of the amplifier 22;The sound table filtering
The input terminal of the output termination SAW filter 9 of device 8;The input terminal of the output termination amplifier 23 of the SAW filter 9, two
Grade SAW filter is filtered signal, guarantees the spuious requirement of signal;The output of the amplifier 23 terminates filtering
The input terminal of device 15;The input terminal of the output termination filter 16 of the filter 15;The output of the filter 16 terminates filter
The input terminal of wave device 17;The input terminal of the output termination filter 18 of the filter 17;The output of the filter 18 terminates
The input terminal of frequency multiplier 1, the combined filter of multistage high pass and low-pass filter guarantee the signal degree of purity of main signal;Described times
The input terminal of the output termination filter 6 of frequency device 1, exports 16.4GHz local oscillation signal.
As shown in figure 5, local oscillator power division network includes that filter 9, power splitter 1, power splitter 2, π decline 10, amplifier 14, function point
Device 3, power splitter 4, power splitter 5, amplifier 15, detector diode 1, voltage comparator 1.The input of the filter 9 terminates coupling
The coupled output of clutch 1, the input terminal of output termination power splitter 1;The a certain output of the power splitter 1 terminates detector diode
1 input terminal;The input terminal of the output termination voltage comparator 1 of the detector diode 1;The output of the voltage comparator 1
Hold external output power detection low and high level result;The input terminal of another output termination power splitter 2 of power splitter 1;The function point
Device 2 output termination π decline 10 input terminal;The π decline 10 output termination amplifier 14 input terminal;The amplifier 14
The input terminal of output termination power splitter 3;The input terminal of the output termination power splitter 4 of the power splitter 3;The power splitter 4 it is defeated
The input terminal of power splitter 5 is terminated out;The input terminal of the output termination amplifier 15 of the power splitter 5;The amplifier 15 it is defeated
The LO input terminal for terminating receiving channel frequency mixer 1 out, provides local oscillation signal for receiving channel.
Claims (8)
1. a kind of 16 channel number word multi-beam receiving and transmitting front end components, it is characterised in that: including receiving antenna, transmitting antenna, 16 tunnels
Receiving channel, 1 road transmission channel, 3 drive tests examination clock module, 1 tunnel local oscillator module, radiating module and energy supply control module;It is described
16 tunnel receiving channel transmission channel receiving antenna signals are connected, and the transmission channel is connected with transmitting antenna signal, 16 tunnel
Receiving channel is connected with radiating module, and the local oscillator module is connected with the transmission channel signal, the energy supply control module point
It does not power with transmission channel, 1 tunnel local oscillator module and 3 drive tests examination clock module, the 3 drive test examination clock module and 1 tunnel local oscillator mould
Block is frequency source, and each structure is layer stereo Hard link.
2. a kind of 16 channel number word multi-beam receiving and transmitting front end component according to claim 1, it is characterised in that: receiving antenna
Received signal, respectively through single-conversion, realizes Ku band signal to the transformation between intermediate-freuqncy signal through 16 tunnel receiving channels;1 tunnel
Transmission channel realizes that intermediate frequency L-band signal to the transformation between Ku band signal, is then directly connected to hair by single-conversion
Penetrate antenna;The test clock signal of frequency point needed for test clock meets externally 3 tunnels of output, facilitates rear class to handle;Local oscillation signal is
Emit link and the frequency conversion local oscillation signal of high phase noise is provided;Power control part is divided into LDO power supply, realizes that external input voltage arrives
Pressure stabilizing, filtering, conversion between internal supply voltage.
3. a kind of 16 channel number word multi-beam receiving and transmitting front end component according to claim 1, it is characterised in that: the reception
Antenna, transmitting antenna, 16 tunnel receiving channels, transmission channel, 3 drive tests examination clock module and 1 tunnel local oscillator module are multilayered structure, the
One layer is receiving antenna and transmitting antenna, and receiving antenna, transmitting antenna are mounted in cavity;The second layer is transmission channel, 16 tunnels
The radio frequency part and energy supply control module of receiving channel, third layer are that intermediate frequency output, intermediate frequency input and 3 drive tests try clock module
With local oscillator module, the intermediate frequency output is connected with 16 tunnel receiving channel signals, and the intermediate frequency input is connected with transmission channel signal;
4th layer includes radiating module;Power supply and control signal pass through Miniature low-frequency connector to slotting interconnection, radiofrequency signal between each layer
It is interconnected by RF isolation;Main realized by via hole interconnects inside each layer.
4. a kind of 16 channel number word multi-beam receiving and transmitting front end component according to claim 3, it is characterised in that: the second layer
Radio frequency part is high frequency section, and the high frequency section is all by Ku wave band frequency conversion section using MMIC bare chip circuit as core
MMIC bare chip, thin film circuit High Density Integration are on soft substrate circuit;Third layer is intermediate-frequency section, and the intermediate-frequency section is with more
Layer microwave board is carrier.
5. a kind of 16 channel number word multi-beam receiving and transmitting front end component according to claim 4, it is characterised in that: MMIC naked core
Piece circuit includes amplification, filtering, mixing, the coupling for emitting link Ku band signal;The clipping of receives link Ku band signal is put
Greatly, it filters and is mixed;Local oscillator function divides function point, amplification and the power-sensing circuit of link;16 receiving channels are divided to two cavitys,
8 channels of each cavity, each independent small cavity in channel, interchannel are separated with parting bead, the independent cavity of transmission channel,
With the non-coplanar design of receiving channel.
6. a kind of 16 channel number word multi-beam receiving and transmitting front end component according to claim 2, it is characterised in that: local oscillation signal
For Ku band signal, is sent again after many times frequency multiplication, filter and amplification to frequency mixer and carry out frequency transformation with corresponding signal.
7. a kind of 16 channel number word multi-beam receiving and transmitting front end component according to claim 3, it is characterised in that: in the second layer
Energy supply control module include pcb board, LDO power module circuitry, electric source filter circuit, control circuit, cavity and external
Low frequency interface.
8. a kind of 16 channel number word multi-beam receiving and transmitting front end component according to claim 3, it is characterised in that: frequency changer circuit
Part include the second layer radio frequency part and third layer intermediate frequency input, intermediate frequency output, the frequency changer circuit include soft base sheet,
Pcb board, small cavity, internal parting bead, large cavity, receives link, transmitting link and local oscillator link, wherein receives link local oscillator passes through
Emit link couples to provide.
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CN109873655A (en) * | 2019-02-18 | 2019-06-11 | 西安茂德通讯科技有限公司 | Microwave transmitting and receiving channel components |
CN110233639A (en) * | 2019-07-15 | 2019-09-13 | 无锡华测电子系统有限公司 | A kind of novel 36 channel X-band transmitting-receiving subassembly |
CN110429952A (en) * | 2019-06-04 | 2019-11-08 | 广东圣大电子有限公司 | A kind of comprehensive radio-frequency system of Ku wave band |
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