CN109039420A - High integration four-way S frequency range transmitting-receiving subassembly and phased array antenna - Google Patents
High integration four-way S frequency range transmitting-receiving subassembly and phased array antenna Download PDFInfo
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- CN109039420A CN109039420A CN201810674882.8A CN201810674882A CN109039420A CN 109039420 A CN109039420 A CN 109039420A CN 201810674882 A CN201810674882 A CN 201810674882A CN 109039420 A CN109039420 A CN 109039420A
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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
- H04B7/18502—Airborne stations
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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
Abstract
The present invention discloses a kind of high integration four-way S frequency range transmitting-receiving subassembly, including receiving channel, transmission channel and external interface, and receiving channel includes band branch I, Q receiving path of pairing, and transmission channel includes band branch I, Q transmitting path of pairing.The two-port feed of the transmitting-receiving subassembly can effectively improve the Circular polarization ratio of antenna, and transceiver channel separates, and receive-transmit isolation can be improved, and reduces interchannel interference, helps to improve system communication ability.Further, invention additionally discloses the phased array antenna with the high integration four-way S frequency transmitting-receiving subassembly, it is adjustable that cooperation four-point feed antenna element is able to achieve polarization, polarization conversion and the beam scanning of phased array antenna are realized by electric-control phase-shift and branch switching, Antenna aperture is effectively reduced simultaneously, realizes Miniaturization Design.
Description
Technical field
The invention belongs to the adjustable phased array antenna technical fields of compact dual-frequency section polarization, and in particular to one kind is used for can be simultaneous
Hold the transmitting-receiving subassembly of the phased array antenna of two kinds of satellite communication systems of S frequency range.
Background technique
Develop onboard satellite communication and be used as emergency communication means, aviation safety and sudden instability energy can be effectively improved
Power.Airborne circumstance proposes very high requirement to satellite communication antena design, is meeting airborne communication ability, electromagnetic compatibility and ring
Under border adaptation etc. requires, miniaturization and compatibility are the problems primarily solved.
The L of compatible S frequency range is logical and the logical two kinds of satellite communication systems of T (are hereinafter referred to as compatible with two kinds of satellite communication systems of S frequency range
System) communication frequency it is close, L is logical and T it is logical used in the Research of Antenna Polarization it is different.As shown in Figure 1, since L is logical and T leads to two kinds of satellites
Communication system working frequency range is close and intersects, and can exist and interfere with each other.Traditional design is to reduce hardware design difficulty, can design two
The independent mechanical antenna of money, is installed separately to avoid interfering with each other.But it is higher in view of mechanical rotable antenna height, it also needs to reserve back
Turn space, this design is excessive to the space hold of carrier platform, but also need to adapt to different platform space layout and into
Row modification, flexibility are poor.
Phased array antenna fast, good electric property, high reliablity and is convenient for and the conformal installation of carrier as a kind of tracking velocity
The features such as antenna form, particularly suitable for airborne platform, and the core of phased array antenna is exactly radio-frequency receiving-transmitting component.It is existing
Although phased array antenna can solve the height and rotary space problem of mechanical rotable antenna, but not can solve system compatible and ask
Topic, it is still desirable to design two sets of independent phased array antenna to cope with different satellite communication systems, therefore to space requirement
Improve limited, and greatly improves purchase cost.
The application for a patent for invention of Publication No. CN 105450252 discloses the restructural S frequency range transceiving radio frequency of one mode
The restructural S frequency range transceiving radio frequency component of component one mode, including component cavity, left-hand circular polarization signaling interface, dextrorotation entelechy
Change signaling interface, receive signal output, transmitting signal input and radio circuit, the radio circuit passes through left-handed entelechy
Change signaling interface and right-handed circular polarization signaling interface, reception signal output, transmitting signal input are connected with external equipment
It connects.The patent can carry out the switching between channel to the transmitting-receiving subassembly used in active phase array antenna, to complete not
With the tdm communication between satellite, and can auxiliary antenna system carried out in fixed station, movement station and portable station antenna quickly
Signal trace, signal switching, signal capture, signal transmitting and receiving such as split at the realization of functions.But the single-point that the patent of invention uses
Feed form can bring lower low elevation angle Circular polarization ratio, and the setting of chain way switch can cause biggish interchannel interference, meeting
Certain influence is generated on communication quality and reliability.
Summary of the invention
To solve in the prior art, antenna set used in compatible two kinds of satellite communication systems of S frequency range becomes a compatible antennas
And bring interferes with each other, simultaneously because two the Research of Antenna Polarization are different, it is adjustable that integrated compatible antennas need to meet circular polarisation rotation direction
The problem of function, the present invention are constituted the design of double branch switchings in unipath using microwave switch cooperation bandpass filter, mentioned
A kind of novel transmitting-receiving subassembly for being compatible with the airborne phased array antenna of two kinds of satellite communication systems of S frequency range and there are the receipts out
The phased array antenna for sending out component, synthesizing one reception/transmission channel by two receptions/transmitting path is setting for antenna element feed
Meter realizes that polarization is adjustable.
Specific technical solution is as follows:
The present invention discloses a kind of high integration four-way S frequency range transmitting-receiving subassembly, including receiving channel, transmission channel and outside
Interface,
External interface includes transmission channel feeding interface, receiving channel feeding interface, transmission channel input interface, receives and lead to
Road output interface, component control interface and component power interface；Transmission channel feeding interface and receiving channel feeding interface have
There are two, it is connected respectively with external antenna unit transmission channel or the I of receiving channel, Q channel；Component power interface is for external
Power supply；Component control interface is used for the control signal of external transmitting-receiving subassembly；
Receiving channel includes band branch I, Q receiving path of pairing, and the extraneous signal received by antenna element is received
Channel feeding interface enters I, Q receiving path, and I, Q two-way receive signal in I, Q receiving path, switches switching by branch
To L is logical or T leads to branch and is filtered, amplifies and phase-modulation and amplitude-modulation, be finally synthesizing for after a radio frequency output signal by receiving channel
Output interface output；
Transmission channel include pairing band branch I, Q transmitting path, radio-frequency input signals by transmission channel input interface into
Enter, constant amplitude etc. is mutually distributed to I, Q transmitting path, and I, Q two-way transmitting path signal are logical to L by branch switching switching or T leads to
Branch is filtered, amplifies and phase-modulation and amplitude-modulation, most exports afterwards through corresponding transmission channel feeding interface to antenna element.
As a preferred embodiment, in receiving channel: I, Q two-way receive signal and lead to through duplexer into corresponding receive
Road is filtered through band stray rejects trap, carries out phase-modulation and amplitude-modulation through vector modulator, through low-noise amplifier and/or
Driving amplifier amplifies, and finally synthesizes radio frequency output signal output by one-to-two combiner device；In transmission channel: penetrating
Frequency input signal is divided into the phases two-way such as constant amplitude transmitting signal through one-to-two combiner device, is received resistance filter and is filtered, through swearing
It measures modulator and carries out phase-modulation and amplitude-modulation, amplified through power amplifier and/or driving amplifier, it is finally corresponding by duplexer feed-in
Transmission channel feeding interface.
As a preferred embodiment, the radio frequency output signal of synthesis exports after driving amplifier amplifies；Received radio frequency
Input signal first carries out constant amplitude etc. again after driving amplifier amplifies and mutually distributes.
As a preferred embodiment, in receiving channel: each receiving path includes that first duplexer, the first primary low noise are put
Big device, the second primary low-noise amplifier, the outer spurious reduction filter of first band, the second band stray rejects trap, first
Switch switch, second level low-noise amplifier, the first vector modulator, export primary driving amplifier；Receiving channel further includes
One one-to-two combiner device and output final stage driving amplifier；In I receiving path, the input terminal of first duplexer connects external day
The I access of line unit, in Q receiving path, the Q channel of the input terminal connection external antenna unit of first duplexer；I, Q receives logical
First output end of the first duplexer on road is sequentially connected the outer spurious reduction filter of first band, the first primary low noise amplification
Device, second output terminal are sequentially connected the second band stray rejects trap, the second primary low-noise amplifier；First primary low noise
The output end of acoustic amplifier and the second primary low-noise amplifier be sequentially connected the first switching switch, second level low-noise amplifier,
First vector modulator exports primary driving amplifier；The first input end and I receiving path of first one-to-two combiner device connect
It connects, the second input terminal is connect with Q receiving path, and output end is connected with output final stage driving amplifier；First vector modulator with
Component control interface connection, for receive adjustment signal phase and with the control signal of amplitude.
As a preferred embodiment, in transmission channel: each transmitting path includes input secondary drive amplifier, the second vector
Modulator, the second switching switch, first receive resistance filter, the second receipts resistance filter, the first power amplifier, the second power amplification
Device, the second duplexer；Transmission channel further includes inputting primary driving amplifier and the second one-to-two combiner device；Second one-to-two
The input terminal of combiner device is connect with primary driving amplifier is inputted, the input secondary drive of the first output end and I transmitting path
The input terminal of amplifier connects, and second output terminal is connect with the input terminal of the input secondary drive amplifier of Q transmitting path；I,Q
In transmitting path, the output end of the input terminal of the second vector modulator connection input secondary drive amplifier, output end connection the
The input terminal of two switching switches；First output end of the second switching switch is sequentially connected the first receipts resistance filter, the first power is put
Big device, the second output terminal of the second switching switch are sequentially connected the second receipts resistance filter, the second power amplifier；First power is put
The output end of big device and the second power amplifier connects the second duplexer；Second vector modulator is connect with component control interface,
For receive adjustment signal phase and with the control signal of amplitude.
As a preferred embodiment, branch switching switch is microwave switch.
As a preferred embodiment, transmission channel feeding interface and receiving channel feeding interface select plug type radio frequency to connect
Head.
As a preferred embodiment, which further includes the first radiator, the second radiator and feeding interface
Layer, feeding interface layer, receiving channel, the first radiator, transmission channel and the second radiator are sequentially arranged from top to bottom, are sent out
It penetrates channel feeding interface and receiving channel feeding interface is arranged in feeding interface layer.
As a preferred embodiment, the first radiator and the second radiator select heat dissipation cold plate.
Based on above-mentioned transmitting-receiving subassembly, I, Q receive signal and respectively enter corresponding receiving path；L leads under operating mode, receives
Signal is by first duplexer, through the first primary low-noise amplifier amplification；T leads under operating mode, receives signal and passes through first
Duplexer, through the second primary low-noise amplifier amplification；Enter second level low-noise amplifier through the first switching switch to amplify,
Phase-modulation and amplitude-modulation is carried out subsequently into the first vector modulator, then is amplified into the first one-to-two by exporting primary driving amplifier
Combiner device, two receiving path signal of I, Q finally synthesize radio frequency output signal all the way, through output final stage driving amplifier amplification
Afterwards, it is exported by receiving channel output interface.The emitted channel input interface of radio-frequency input signals enters, first through the primary driving of input
Amplifier amplification, is then mutually distributed to two transmitting path of I, Q by second one-to-two combiner device constant amplitude etc., through two transmitting paths
In input secondary drive amplifier be amplified into the second vector modulator carry out phase-modulation and amplitude-modulation；T leads under operating mode, transmitting
Path signal enters the first power amplifier through the second switching switch and amplifies, and is then emitted accordingly by the second duplexer feed-in logical
The output of road feeding interface；L leads under operating mode, and transmitting path signal enters the second power amplifier through the second switching switch and puts
Greatly, it is then exported by the corresponding transmission channel feeding interface of the second duplexer feed-in.
Invention additionally discloses a kind of phased array antenna comprising mutiple antennas unit, the receipts being correspondingly connected with antenna element
It sends out component, receive signaling interface, signalling interface, antenna power interface and antenna control interface；The transmitting-receiving subassembly is with upper
State the high integration four-way S frequency range transmitting-receiving subassembly of feature；Signaling interface is received in connection after each receiving channel output interface combining, respectively
Signalling interface is connected after the combining of transmission channel input interface, each component power interface is connected to antenna power interface, each group
Part control interface is connected to antenna control interface, and is connected by antenna power interface and antenna control interface and external equipment
It connects.
As a preferred embodiment, the antenna element is four-point feed antenna element, and the feed of the transmitting-receiving subassembly connects
The feeding interface of mouth and four-point feed antenna element is connected directly, and the feed width phase control of transmitting-receiving subassembly is cooperated to realize that circular polarisation can
It adjusts, to be compatible with, L is logical and the logical difference for circular polarisation rotation direction of T requires.
The utility model has the advantages that
(1) the transmitting-receiving subassembly feeding interface layer is connected with the four-point feed antenna element of phased array antenna, and cooperates transmitting-receiving
The feed width phase control of component, i.e. realization circular polarisation adjustable function, to be compatible with, L is logical and T is logical wants the difference of circular polarisation rotation direction
It asks.
(2) this transmitting/reception two-port feed can effectively improve the Circular polarization ratio of antenna compared to single port feed,
And transceiver channel separates, and receive-transmit isolation can be improved, and reduces interchannel interference, helps to improve system communication ability.
(3) by chip and transmitting/receiving port position distribution optimization design in transmitting-receiving subassembly PCB and high-frequency multilayer mixed
The interspersed cabling of pressing plate, enables radio-frequency joint to be directly connected with antenna element feeding point, simplifies feed structure, avoid lead-in
The additional Insertion Loss of cable bring.
(4) polarization conversion and the beam scanning of phased array antenna are realized by electric-control phase-shift and branch switching, while effectively
Antenna aperture is reduced, Miniaturization Design is realized.
(5) two kinds of satellite communication systems are cooperated by transmitting branch switching with mutually receivable resistance filter, are effectively improved
The receive-transmit isolation of component meets communication system full duplex job requirement；By receiving branch switching switch with accordingly with outer miscellaneous
Rejects trap cooperation is dissipated, effectively inhibits the band stray of component, guarantees the steady operation of communication system.
(6) the characteristics of fully taking into account two kinds of satellite communication systems of S frequency range combines Miniaturization Design principle, uses
Transmit-receive sharing, polarize the design such as adjustable, channel multiplexing, reduces the complexity of transmitting-receiving subassembly, has the advantages of simple structure and easy realization, weight
Amount is light, effectively reduces the requirement to installation.
Detailed description of the invention
T leads to Fig. 1 in the prior art, L way system receives and dispatches frequency range schematic diagram, (the logical transmitting frequency range of TT:T；LR:L connects receipts frequency
Section；TR:T connects receipts frequency range；The logical transmitting frequency range of LT:L)；
Transmitting-receiving subassembly structural schematic diagram in Fig. 2 embodiment 1；
Transmitting-receiving subassembly is to antenna feed electrical schematic, (TI1: antenna element transmission channel I access in Fig. 3 embodiment 1；TQ1:
Antenna element transmission channel Q channel；RI1: antenna element receiving channel I access；RQ1: antenna element receiving channel Q channel；)
The receiving channel schematic diagram of transmitting-receiving subassembly in Fig. 4 embodiment 1；
The transmission channel schematic diagram of transmitting-receiving subassembly in Fig. 5 embodiment 1；
The structural schematic diagram of phased array antenna in Fig. 6 embodiment 2；
Illustrate identifier declaration:
In Fig. 1: 1- feeding interface layer, 2- receiving channel, 3- receiving channel cold plate, 4- transmission channel, 5- transmission channel are cold
Plate；27- transmission channel feeding interface, 28- receiving channel feeding interface, 29- transmission channel input interface, 30- receiving channel are defeated
Outgoing interface, 31- component power interface, 32- component control interface, the upper shielding box cover of 33-；
In Fig. 4: 6- receiving path duplexer, 7-L lead to receiving branch primary low-noise amplifier, 8-L leads to receiving branch band
Outer spurious reduction filter, 9-T lead to receiving branch primary low-noise amplifier, 10-T leads to receiving branch band stray and inhibits filtering
Device, 11-T lead to/the logical receiving branch switching switch of L, 12- receiving path second level low-noise amplifier, 13- receiving path Vector Modulation
Device, 14- receiving path export primary driving amplifier, 15- receiving channel one-to-two combiner device, 16- receiving channel output end
Grade driving amplifier；
In Fig. 5: 17- transmission channel inputs primary driving amplifier, 18- transmission channel one-to-two combiner device, 19- transmitting
Access inputs secondary drive amplifier, 20- transmitting path vector modulator, 21-T and leads to/logical transmitting branch switching the switch of L；22-T
Logical transmitting branch receives resistance filter, 23-T leads to transmitting branch power amplifier, 24-L leads to transmitting branch to receive resistance filter, 25-L logical
Transmitting branch power amplifier, 26- transmitting path duplexer；
In Fig. 6: 34- aerial array, 35- receive assembly module, 36- receives component cold plate, 37- hair assembly module, 38- send out component
Cold plate, the control of 39- wave beam and power module, 40- receive signaling interface, 41- antenna power interface, 42- antenna control interface, 43-
Signalling interface.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further explained explanation to the present invention.
As shown in Figure 1, in the prior art, L is logical and the logical two kinds of satellite communication systems transmitting-receiving frequency range of T is close, and intersects,
Interference can be generated to correspondingly received channel (when including: that T leads to transmitting, to leak into L and connect the signal for receiving frequency range；When L leads to transmitting,
Leak into T and connect the signal for receiving frequency range), these interference signals needs effectively filter out, to avoid interfering with each other for two kinds of systems.
As shown in Fig. 2, disclosing a kind of phased array antenna transmitting-receiving subassembly (hereinafter referred to as transmitting-receiving subassembly) in embodiment 1, mainly
It is several by feeding interface layer 1, receiving channel 2, receiving channel cold plate 3, transmission channel 4 and transmission channel cold plate 5 and external interface
A part composition, external interface mainly include transmission channel feeding interface 27, receiving channel feeding interface 28, transmission channel input
Interface 29, receiving channel output interface 30, component power interface 31 and component control interface 32.Transmission channel feeding interface 27,
For receiving channel feeding interface 28 for being connected with the antenna element of phased array antenna, transmission channel input interface 29 is transmitting-receiving subassembly
Transmitting signal input interface, receiving channel output interface 30 is the reception signal output interface of transmitting-receiving subassembly, and component power supply connects
Mouth 31 is used for external power supply, and component control interface 32 is used for the control signal of external transmitting-receiving subassembly.The transmitting-receiving subassembly is mainly used for T
Logical/L communication satellite communication system phased array antenna, realizes the compatible of two kinds of systems, reduces the space requirement of carrier platform, drops
Low cost improves suitable dress property.
The monnolithic case of the transmitting-receiving subassembly is about long 60mm, the rectangular parallelepiped structure of width 60mm, height 30mm.Specific structure cloth
Be set to: feeding interface layer 1 includes mainly upper shielding box cover 33, and transmission channel feeding interface 27 and receiving channel feeding interface 28 are set
In upper 33 outside of shielding box cover.Totally two radio-frequency joints of transmission channel feeding interface 27, respectively with antenna element transmission channel
I, two transmitting paths of Q are connected；Totally two radio-frequency joints of receiving channel feeding interface 28, respectively with antenna element receiving channel
I, two receiving paths of Q are connected.Transmission channel feeding interface 27 and receiving channel feeding interface 28 are connect using plug type radio frequency
Head.Receiving channel 2 under feeding interface layer 1 is close to receiving channel cold plate 3, will be generated heat and be conducted to outer on a small quantity by cold plate 3
Side wall avoids inside modules heat from assembling.Transmission channel 4 under receiving channel cold plate 3 is close to transmission channel cold plate 5, leads to
Transmission channel cold plate 5 is crossed to distribute the heat production of power amplifier.
As shown in connection with fig. 3, the transmitting-receiving subassembly is to feeding point totally four of antenna element, wherein transmission channel feeding interface
27 include two adjacent radio-frequency joints, is fed to antenna element, is formed and is needed by the phase difference of two transmitting paths of control
Circular polarisation rotation direction；Receiving channel feeding interface 28 includes two adjacent radio-frequency joints, feeds to antenna element, passes through control
The phase difference of two receiving paths forms the circular polarisation rotation direction needed.
As shown in figure 4, receiving channel 2 is made of band branch I, Q receiving path matched.It should be noted that here
Pairing refer to pairing use, device composition it is similar, type, setting it is essentially identical, therefore, here by taking I receiving path as an example into
Row explanation.L leads under operating mode, receives signal by receiving path duplexer 6 and enters the logical receiving branch of L, leads to receiving branch through L
Primary low-noise amplifier 7 amplifies, then again by L lead to receiving branch band stray rejects trap 8 improve component with outer suppression
Ability processed；T leads under operating mode, receives signal by receiving path duplexer 6 and enters the logical receiving branch of T, leads to receiving branch through T
Primary low-noise amplifier 9 amplifies, then again by T lead to receiving branch band stray rejects trap 10 improve component with outer suppression
Ability processed；T is logical/and L leads to receiving branch switching switch 11 and is used for switching working mode, the reception received access second level low noise of signal
Amplifier 12 enters receiving path vector modulator 13, issues control by external beam steering module (not in scope)
Signal controls the phase and amplitude in each channel of transmitting-receiving subassembly through component control interface 32, receives the received path vectors tune of signal
After device 13 processed is decayed, then received access exports primary driving amplifier 14 and is amplified into receiving channel one-to-two combiner device
15, I, Q two-way receives signal (receiving channel 1 and receiving channel 2 in corresponding diagram) and is finally combined into all the way, and last received channel is defeated
Final stage driving amplifier 16 exports out.The circuit structure of receiving channel 2 is with receiving channel 1 in Fig. 4, therefore simplifying indicates.
As shown in figure 5, transmission channel 4 is made of band branch I, Q transmission channel matched, radio-frequency input signals is emitted logical
Road inputs primary driving amplifier 17 and amplifies, and is mutually distributed to I, Q two by 18 constant amplitude of transmission channel one-to-two combiner device etc.
Transmission channel (transmission channel 1 and transmission channel 2 in corresponding diagram), wherein single channel emits the emitted access input second level of signal and drives
Dynamic amplifier 19 enters transmitting path vector modulator 20, issues control signal through component control interface 32 by wave control, control should
The phase and amplitude of access realize polarization modulation and beam scanning with other accesses jointly.T leads under operating mode, emits signal
Through T it is logical/L leads to transmitting branch switching switch 21 and enters T and lead to transmitting branch and receive and hinder filter 22, to reduce out-of-band noise to the reception
The interference of branch, 26 feed-in of transmitting path duplexer leading to transmitting branch power amplifier 23 through T after and being followed by are sent out accordingly
Penetrate antenna element；L leads under operating mode, transmitting signal through T it is logical/L leads to transmitting branch switching switch 21 and enters L and lead to transmitting branch receipts
Hinder filter 24, to reduce interference of the out-of-band noise to the receiving branch, after through L lead to transmitting branch power amplifier 25 and after
The transmitting path duplexer 26 connect, then the corresponding transmission antenna unit of emitted 27 feed-in of channel feeding interface.Emit in Fig. 5 logical
The circuit structure in road 2 is with transmission channel 1, therefore simplifying indicates.
It should be noted that there are two branches respectively for the respective inside of I, Q channel, for switching, L is logical or T leads to operating mode
Corresponding branch filtering, amplification.Corresponding branch be switched to L it is logical/after T leads to one, I/Q access passes through advanced or 90 ° of lag
Phase feeds antenna element, to form left/right hand circular polarization.In the case where L is logical or T leads to mode, both of which is main in channel
It is corresponding frequency band difference, corresponding amplifier type selecting should be guaranteed that the optimum performance in relevant work mode frequency range, filter
Passband should be corresponding with corresponding band.
The feeding interface layer of the transmitting-receiving subassembly can be connected directly with the feeding point of four-point feed antenna element, cooperate transmitting-receiving group
The feed width phase control of part can be realized that circular polarisation is adjustable, and to be compatible with, L is logical and the logical difference for circular polarisation rotation direction of T requires.And
And in embodiment 1, transmitting-receiving subassembly PCB core chip layout presses the position distribution optimization design of transceiver interface, is convenient for radio-frequency joint and day
Line unit feeding point is directly connected to, and simplifies feed structure, avoids the additional Insertion Loss for introducing cable.
Theoretical according to the array synthetic of phased array antenna, by rationally controlling each transmitting-receiving subassembly channel, (transmitting-receiving subassembly is each
Channel) phase delay and amplitude fading, wave beam can be upwardly formed in user, and by changing phase delay and amplitude fading
It realizes a certain range of beam scanning, while effectively reducing Antenna aperture, realize Miniaturization Design.
In actual operation, four-way S frequency range transmitting-receiving subassembly disclosed by the invention, for airborne platform phased array antenna pair
The communicating requirement of two kinds of satellite communication systems and environment is installed and used, channel can be reconciled by optimization layout, transmit-receive sharing, polarization
The design methods such as multiplexing effectively reduce volume in the case where meeting communication electrical performance indexes and requiring, and improve versatility and reliable
Property, research and development manufacturing cost is reduced, the compatibility of different communication systems is become and improves airborne platform emergency communication ability
It ensures.
The transmitting-receiving subassembly has the features such as miniaturization, highly compatible, high reliability, using the phased array of the transmitting-receiving subassembly
Antenna can effectively improve the communication performance of airborne platform mainly for airborne platform optimization design.
As shown in fig. 6, embodiment 2 discloses a kind of phased array antenna, overall structure is divided into: aerial array 34 receives assembly mould
Block 35 receives component cold plate 36, hair assembly module 37, hair component cold plate 38, wave beam control and the composition of power module 39, external interface
Main includes receiving signaling interface 40, signalling interface 43, antenna power interface 41, antenna control interface 42.
The antenna is mainly made of nine transmitting-receiving subassemblies as described in Example 1.Specifically, aerial array 34 is mainly by nine
A identical four-point feed antenna element and corresponding feeding interface layer 1 composition；It is mutually independent by nine to receive assembly module 35
Receiving channel 2 forms, and nine combinings of receiving channel output interface 30 are followed by receiving signaling interface 40；Assembly module 37 is sent out by nine
Mutually independent transmission channel 4 forms, and nine combinings of transmission channel input interface 29 are followed by signalling interface 43；In order to guarantee
Heat dissipation performance receives component cold plate 36 and hair 38 overall processing of component cold plate molding；The component power interface 31 of nine transmitting-receiving subassemblies
Wave beam control and power module 39 are all connected to by Internal cable with component control interface 32, and pass through antenna power interface
41, antenna control interface 42 is connected with external equipment.
The phased array antenna compared to traditional phased array antenna, can be realized under similar sizes timesharing switching L it is logical/T is logical
The function of operating mode, and its antenna Circular polarization ratio is higher, clutter recognition is stronger, realizes under the design of low section higher
Low elevation gain, the stable communication connection of effective guarantee communication system.Meanwhile the Antenna Design is flexible, it can be according to index request
The transmitting-receiving subassembly module of collocation different number, module compatibility are stronger.
Although embodiment of the present invention is described in conjunction with attached drawing above, the invention is not limited to above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted
's.Those skilled in the art under the enlightenment of this specification, in the range for not departing from the claims in the present invention and being protected
In the case where, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (10)
1. a kind of high integration four-way S frequency range transmitting-receiving subassembly, which is characterized in that including receiving channel, transmission channel and outside
Interface,
External interface includes that transmission channel feeding interface, receiving channel feeding interface, transmission channel input interface, receiving channel are defeated
Outgoing interface, component control interface and component power interface；Transmission channel feeding interface and receiving channel feeding interface all have two
It is a, it is connected respectively with external antenna unit transmission channel or the I of receiving channel, Q channel；Component power interface is used for external electricity
Source；Component control interface is used for the control signal of external transmitting-receiving subassembly；
Receiving channel includes band branch I, Q receiving path of pairing, the received channel of extraneous signal received by antenna element
Feeding interface enters I, Q receiving path, and I, Q two-way receive signal in I, Q receiving path, switches switching to L by branch
Logical or T leads to branch and is filtered, amplifies and phase-modulation and amplitude-modulation, is finally synthesizing to be exported after a radio frequency output signal by receiving channel
Interface output；
Transmission channel includes band branch I, Q transmitting path of pairing, and radio-frequency input signals is entered by transmission channel input interface, etc.
Width etc. is mutually distributed to I, Q transmitting path, I, Q two-way transmitting path signal by branch switching switching to L is logical or the logical branch of T into
Row filtering, amplification and phase-modulation and amplitude-modulation, most export through corresponding transmission channel feeding interface to antenna element afterwards.
2. S frequency range transmitting-receiving subassembly as described in claim 1, which is characterized in that
In receiving channel: I, Q two-way receive signal and enter corresponding receiving path through duplexer, through band stray rejects trap
Be filtered, carry out phase-modulation and amplitude-modulation through vector modulator, through low-noise amplifier and/or
Driving amplifier amplifies, and finally synthesizes radio frequency output signal output by one-to-two combiner device；
In transmission channel: radio-frequency input signals is divided into the phases two-way such as constant amplitude transmitting signal through one-to-two combiner device, is received resistance filter
Wave device is filtered, and carries out phase-modulation and amplitude-modulation through vector modulator, through power amplifier and/or
Driving amplifier amplifies, finally by the corresponding transmission channel feeding interface of duplexer feed-in.
3. S frequency range transmitting-receiving subassembly as described in claim 1, which is characterized in that the radio frequency output signal of synthesis is through drive amplification
It is exported after device amplification；Received radio-frequency input signals first carries out constant amplitude etc. again after driving amplifier amplifies and mutually distributes.
4. S frequency range transmitting-receiving subassembly as described in claim 1, which is characterized in that
In receiving channel: each receiving path includes that first duplexer, the first primary low-noise amplifier, the second primary low noise are put
The outer spurious reduction filter of big device, first band, the second band stray rejects trap, the first switching switch, second level low noise are put
Big device, exports primary driving amplifier at the first vector modulator；
Receiving channel further includes the first one-to-two combiner device and output final stage driving amplifier；In I receiving path, the first duplex
The I access of the input terminal connection external antenna unit of device, in Q receiving path, the input terminal of first duplexer connects external antenna
The Q channel of unit；I, the first output end of the first duplexer of Q receiving path is sequentially connected the outer spurious reduction filtering of first band
Device, the first primary low-noise amplifier, second output terminal are sequentially connected the second band stray rejects trap, the second primary low noise
Acoustic amplifier；The output end of first primary low-noise amplifier and the second primary low-noise amplifier is sequentially connected the first switching and opens
Pass, second level low-noise amplifier, the first vector modulator export primary driving amplifier；The of first one-to-two combiner device
One input terminal is connect with I receiving path, and the second input terminal is connect with Q receiving path, output end and output final stage driving amplifier
Connection；First vector modulator is connect with component control interface, for receive adjustment signal phase and with the control signal of amplitude；
In transmission channel: each transmitting path include input secondary drive amplifier, the second vector modulator, second switching switch,
First receives resistance filter, the second receipts resistance filter, the first power amplifier, the second power amplifier, the second duplexer；Transmitting is logical
Road further includes inputting primary driving amplifier and the second one-to-two combiner device；The input terminal of second one-to-two combiner device with it is defeated
Entering primary driving amplifier connection, the first output end is connect with the input terminal of the input secondary drive amplifier of I transmitting path, the
Two output ends are connect with the input terminal of the input secondary drive amplifier of Q transmitting path；I, in Q transmitting path, the second vector tune
The output end of the input terminal connection input secondary drive amplifier of device processed, the input terminal of output end connection the second switching switch；The
First output ends of two switching switches are sequentially connected the first receipts resistance filter, the first power amplifier, and the of the second switching switch
Two output ends are sequentially connected the second receipts resistance filter, the second power amplifier；First power amplifier and the second power amplifier
Output end connect the second duplexer；Second vector modulator is connect with component control interface, for receiving adjustment signal phase
With the control signal with amplitude.
5. S frequency range transmitting-receiving subassembly as described in claim 1, which is characterized in that the branch switching switch is microwave switch.
6. S frequency range transmitting-receiving subassembly as described in claim 1, which is characterized in that the transmission channel feeding interface and reception are logical
Road feeding interface selects plug type radio-frequency joint.
7. S frequency range transmitting-receiving subassembly as described in claim 1, which is characterized in that further include the first radiator, the second heat dissipation dress
Set with feeding interface layer, feeding interface layer, receiving channel, the first radiator, transmission channel and the second radiator from up to
Under be sequentially arranged, transmission channel feeding interface and receiving channel feeding interface are arranged in feeding interface layer.
8. S frequency range transmitting-receiving subassembly as claimed in claim 7, first radiator and the second radiator select heat dissipation
Cold plate.
9. a kind of phased array antenna, which is characterized in that including mutiple antennas unit, the transmitting-receiving group being correspondingly connected with antenna element
Part receives signaling interface, signalling interface, antenna power interface and antenna control interface；The transmitting-receiving subassembly be claim 1 to
High integration four-way S frequency range transmitting-receiving subassembly described in 8 any one；The connection collection of letters number after each receiving channel output interface combining
Interface connects signalling interface after each transmission channel input interface combining, and each component power interface is connected to antenna power and connects
Mouthful, each component control interface is connected to antenna control interface, and passes through antenna power interface and antenna control interface and outside
Equipment connection.
10. phased array antenna as claimed in claim 9, the antenna element is four-point feed antenna element, the transmitting-receiving group
The feeding interface of part and the feeding interface of four-point feed antenna element are connected directly, and cooperate the feed width phase control of transmitting-receiving subassembly real
Existing circular polarisation is adjustable, and to be compatible with, L is logical and the logical difference for circular polarisation rotation direction of T requires.
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