CN105914476A - Ka-band tilt-structure active phased array antenna - Google Patents
Ka-band tilt-structure active phased array antenna Download PDFInfo
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- CN105914476A CN105914476A CN201610343067.4A CN201610343067A CN105914476A CN 105914476 A CN105914476 A CN 105914476A CN 201610343067 A CN201610343067 A CN 201610343067A CN 105914476 A CN105914476 A CN 105914476A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
- H01Q3/36—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters
Abstract
The invention provides a Ka-band tilt-structure active phased array antenna, so as to provide an active phased array antenna which is high in integration density and can improve maintainability and interchangeability. According to the technical scheme, one path of RF signals transmitted by a transmitting signal processing terminal are transmitted to a power distribution/synthesis network (5) via a signal interface and a radio frequency interface to be divided into M paths of signals; according to information of an azimuth angle and a pitch angle of the phased array antenna provided by the transmitting signal processing terminal in real time, a beam controller (4) calculates and obtains beam pointing of the phased array antenna in real time through an FPGA; the beam pointing of the phased array antenna is converted into phase data needed by each array element under control of the beam controller (4); the data are transmitted to tilt-type TR assembly sub array modules in N channels respectively via a high and low-frequency interconnected multi-core high and low-frequency socket, and under control of the beam controller, M*N paths of signals are transmitted to an antenna array, and thus signal transmission is completed, and synchronous electric control scanning of beams transmitted by the phased array antenna is realized.
Description
Technical field
The invention belongs to microwave and millimeter wave technical field, relate to a kind of Ka frequency range tile style structure based on multifunctional unit chip
Active phase array antenna.
Background technology
Prior art active phase array antenna can be divided into according to structure assembly mode: Top-down design laterally assembles (LITA)
" brick " structure and the tile style structure of horizontal integrating longitudinally assembled (TILA)." brick " structure phased array antenna uses unit's device
Part placement direction is perpendicular to phased array antenna front aperture, and TR assembly circuit uses Top-down design laterally to assemble (LITA) mode；
Components and parts placement direction is parallel to phased array antenna front aperture by tile style structure phased array antenna, and face battle array circuit uses laterally collection
Become longitudinally assembled (TILA) mode.The design of " brick " structure phased array antenna circuit and manufacturing process are simple, but it is integrated close
Degree and packaging efficiency are low, and longitudinal size is big.Tile style structure phased array antenna integration density is high, and longitudinal size is little, and hot path is short,
Radiating efficiency is higher.Dividing by assembling mode, two dimension active phase array antenna TR assembly can be divided into fragment of brick formula and tile type
Two kinds of structures.In recent years, brick block structure is used widely in active array, because its technology maturity is high, circuit sets
Meter and assembling easily realize, but its submatrix integrated level is low, longitudinal size big, is unfavorable for conformal；Heat dissipation path is long, it is difficult to realize
Large-scale array is applied and ensures that TR assembly works reliably and with long-term.And tile type TR component technology difficulty is big, unit size is less,
Must use high-density integration technology (HDI) and miniaturization, the highly reliable radio frequency of high-performance is vertical interconnects.The spoke of phased array antenna
Penetrate characteristic and depend on the design of antenna element and the group battle array mode of unit.Various microstrip antennas are that phased array antenna unit is more managed
The selection thought, but at Ka wave band, owing to the microstrip feed line width of conventional about 50fl is relatively wide (with resonant element
Size compare), be not easy to the layout of coplanar feeding network.For improving integrated level, the general phase shifter using two-way operation and
Attenuator does transmitting-receiving common branch.If unit interval takes about half wavelength, tile type TR assembly then requires that aisle spare is less than
In 6.0mm × 6.0mm, to realize in this range receiving and dispatching the functions such as amplification, phase shift decay, even if using high integration special
Chip also has been difficult to circuit configuration.
At present, the general mode using " brick " structure assembly realizes active phase array antenna design.Such as, 2005,
Wehling J H has delivered an entitled " Multifunction millimeter-wave systems for arm ored vehicle
Application " article, describe promise. a kind of Ka frequency range " brick " structure multifunctional radar of lattice company, can realize actively
Defence, counter threaten target, monitor the functions such as aerial and ground target, high-speed digital transmission and networking.This Ka wave band " brick " is tied
Structure active phase array antenna uses transmitting-receiving Shared aperture design, half duplex techniques system, and single-channel pulse output is more than 1W.
2006, Eli Brookner delivered entitled " Phased array and radar break throughs " article, reports for work
A kind of Ka frequency range " brick " structure target seeker precise guidance active phase array antenna of Raytheon Co., this target seeker phased array sky
Line is operated in 35GHz, more than 600 array element, and it is 40mW that each array element launches power.2012, one, Yang Sheng grey hair table
Entitled " a kind of millimeter wave two dimension electricity sweeps Connectors for Active Phased Array Radar " article, uses multi-beam switched feeds and phased beam scanning
The technology combined achieves a kind of Ka frequency " brick " structure low cost millimeter wave two-dimensional electric scanning Connectors for Active Phased Array Radar.
Owing to using integrated relatively low " brick " frame mode, active phase array antenna is difficulty with miniaturization, light weight configuration.
Meanwhile, with electronics industry and the fast development of advanced manufacturing industry correlation technique, such as: the integrated electricity of millimeter-wave monolithic
Road technique, low-and high-frequency interconnection technique, multifunctional unit chip technology, integration packaging technology, etc., researcher is the most slowly attempted
Using more superintegrated tile style frame mode to realize active phase array antenna, such as, nineteen ninety-five, Sanzgirl S delivers
The article of one entitled " A hybrid tile approach for Ka band subarray modules ", it was recently reported that a kind of Ka frequency range
Tile style structure active phase phased array antenna, first Ka frequency range attempt tile style structure, in order to solve narrow and small the asking of lateral dimension
Topic, increases the spacing of antenna radiation unit, sacrifices the wide angle scanning characteristic of phased array antenna.2010, Holzwarth
S has delivered an entitled " Active antenna arrays at Ka-Band:status and outlook of the SANTANA
Project " report SNTANA communication in moving Ka frequency range active phase array antenna and experienced by 3 stages, the first two stage uses
" brick " technology is designed, and the phase III mainly uses tile style Technology design.In order to realize the arrangement of whole circuit, by whole
Individual array integrated design, the processing of this phased array antenna and manufacturing process require height, reduce testability, maintainability.
In sum, in traditional design, radio-frequency enabled part is to realize a standalone feature mode with one single chip, it is achieved
The single passage of emission function at least needs 3 chips (1 power amplifier, 1 phase shifter and 1 serioparallel exchange drive), and whole have
Source phased array antenna number of chips is many, assembling procedure is complicated, it is high to be designed and manufactured as.In order to meet the arrangement of these chips,
" brick " structure assembly mode that the main employing integrated level of active phase array antenna is little.Meanwhile, active phase array antenna is also tasted
Pilot production tile style structure assembly mode, it is achieved miniaturization, low cost, high efficiency and heat radiation.But it is narrow and small in order to solve lateral dimension
Problem, have lost some performances of phased array antenna.
Summary of the invention
It is an object of the invention to the weak point existed for prior art, it is provided that one has miniaturization, modularity, low
Cost, integration density is high, it is possible to increase maintainability and interchangeability, Ka frequency range tile style structure based on multifunctional unit chip has
Source phased array antenna.
The above-mentioned purpose of the present invention can be reached by following measures.A kind of Ka frequency range tile style structure active phase array antenna,
Including, it is divided into antenna array 1 and the active phase phased antenna tile style array architecture of tile type TR assembly 2 composition of multiple submatrix,
And each submatrix module comprises N paths, each passage has 1 independent final stage transceiving chip, and N paths shares N/L
L * channel multifunctional unit chip, it is characterised in that: all submatrix shares a set of motherboard, and wherein, motherboard includes, power distribution/
Synthesis network 5, beam-controller 4 and power module 6, heat sink design, between submatrix and motherboard, uses insulator, SMP-
KK-SMP adapter, elastic contact pin, multicore low-and high-frequency socket realize low-and high-frequency interconnection；Each antenna array submatrix and tile type
TR assembly submatrix shares the vertical interconnection conversion micro strip of metallic cavity, front micro strip and tile type TR assembly 2 top layer and adopts
Connect with welding type insulator adapter, be directly installed on tile type TR assembly 2 by crimping mode, it is achieved with tile type
TR assembly integrated design；The 1 road RF signal that transmitting signal processing terminal sends is by signaling interface and radio frequency interface
Delivering to power distribute/synthesize network 5 and be divided into M road signal, beam-controller 4 is according to launching what signal processing terminal provided in real time
The azimuth of phased array antenna and angle of pitch information, be calculated phased array antenna ripple in real time by the FPGA of beam-controller 4
Shu Zhixiang, phase array antenna beam points under beam-controller 4 controls, and is converted to the phase data that each array element needs, and warp
Tile type TR assembly submatrix module delivered to respectively by low-and high-frequency interconnection multicore low-and high-frequency socket, and under the control of beam-controller,
M × N road signal is delivered to antenna array and completes the transmitting of signal, it is achieved phased array antenna launching beam synchronizes automatically controlled scan function.
The present invention has the advantages that compared to prior art
Improve maintainability and the interchangeability of equipment.The present invention uses multifunctional unit chip to realize Ka frequency range tile style structure active phase
Array antenna, in a multifunctional unit chip integrated power amplifier, low-noise amplifier, radio-frequency (RF) switch, the phase shifter, with
And digital control circuit etc., it is possible to reduce chip uses number, facilitating chip peripheral circuit and interconnection operation, reduction chip circuit
Area, improves TR assembly integrated level and combination property, makes the single channel circuit of TR assembly occupy space and reduces, it is achieved that Ka
Frequency range tile type TR assembly High Density Integration, low-cost design.Solve the problem that tile style phased array antenna horizontal space is limited.
Use the complete machine framework of submatrix modularized design, whole array design is converted into the design of basic submatrix module, can simplify mutually
Connection mode.Each submatrix module is relatively independent, can individually debug.If there is fault, can dismantle arbitrary easily
Submatrix is tested and safeguards, it is achieved the external replaceable of component-level and maintenance, such that it is able to improve maintainability and the exchange of equipment
Property.
There is miniaturization, modularity, low cost.Active phase array antenna of the present invention have employed tile style framework, antenna array
Designing with tile type TR assembly submatrix module, realize whole array design based on submatrix extension design, whole submatrixs share a set of
Power distributes/synthesizes network, beam-controller, power module, uses insulator, SMP-KK-SMP adapter, elasticity to insert
Pin, miniaturization multicore low frequency socket realize low-and high-frequency interconnection, finally realize phased array antenna integral miniaturization, modularity, low one-tenth
This change designs.Antenna height direction size is significantly reduced, and hot path shortens, and radiating efficiency is improved the most accordingly, and equipment has
Higher reliability.Use modularized design, based on submatrix expansion technique, it is easy to accomplish large scale array is integrated.Each submatrix
Module is relatively independent, it is possible to achieve EM equipment module level testability and maintainability.Wherein, antenna array uses common micro-strip
The vertical interconnection conversion micro strip of linear formula, front micro strip and tile type TR assembly top layer uses welding type insulator adapter
Connect, be directly installed on tile type TR assembly by crimping mode, it is achieved with tile type TR assembly integrated design.
Compared with using SMP-KK-SMP connected mode with traditional scheme, part data are as follows: in terms of loss, antenna array and tile
Junction loss between formula TR assembly decreases about 0.5dB；Direction in terms of longitudinal size, can save 3mm～5mm
Space；Becoming on present aspect, cost about reduces 2/3.It is thereby achieved that the miniaturization of phased antenna high-frequency model, efficiently
Rate designs.
Integration density is high.The present invention is based on multifunctional unit chip, and as a example by L=8 multifunctional unit chip, 9 chips are real
The function of existing 8 passages, each passage has 1 independent final stage transceiving chip, and it is integrated that 8 passages share 18 channel multi-functional
Chip, this integrated chip of 8 passage, use CMOS technology, be integrated with driving amplifier, phase shifter, attenuator, string also
The chip functions such as signal conversion, power management and other control, chip size 5.7mm × 2.6mm × 0.3mm.At TR
In assembly design, this programme is as follows with traditional scheme contrast part data: in terms of chip, number of chips economy ＞ 50%, core
Sheet area reduction ＞ 50%；In terms of assembling, weld spun gold reduced number rate ＞ 50%.Use CMOS technology, Ke Yishi
The most highdensity integrated chip, has characteristic of low cost in large-scale mass production.Meanwhile, the present invention by antenna array and watt
Chip TR assembly is divided into multiple submatrix, each antenna array submatrix and tile type TR assembly submatrix to share metallic cavity, antenna
Front uses the vertical interconnection conversion micro strip of common microstrip line form, front micro strip and tile type TR assembly top layer to use
Welding type insulator adapter connects, and is directly installed on tile type TR assembly by crimping mode, it is achieved with tile type TR
Assembly integrated design.It is thereby achieved that tile type TR assembly High Density Integration, low-cost design.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the Ka frequency range tile style structure active phase array antenna of the present invention.
Fig. 2 is the fundamental diagram of Fig. 1.
Fig. 3 is the Ka frequency range tile style structure active phase array antenna decomposition texture schematic diagram of the present invention.
Fig. 4 is Fig. 3 neutron array inside modules connection figure.
Fig. 5 is the top view of Fig. 3.
Fig. 6 is the upward view of Fig. 3.
Fig. 7 is Fig. 3 neutron array module LTCC circuit design diagram.
Fig. 8 is the active phase array antenna beam scanning direction figure of the present invention.
In figure: 1 antenna array, 2 tile type TR assemblies, 3 metallic cavity, 4 beam-controllers, 5 power distribution/close
Becoming network, 6 power modules, 7 insulators, 8 elastic contact pins, 9SMP-KK-SMP adapter, 10J63A series of rectangular is even
Connect device socket, 11J63A series of rectangular adapter, 12Y34Q series circular connector socket, 13SMA series of header, 14
Liquid cold junction, 15 antenna radiation units, 16 antenna submatrix fronts, 17 microstrip transitions circuit, on 18 tile type TR assemblies
Cavity metal structure, 19 transceiving chips, 20 multifunctional unit chips, 21LTCC conversion and control passive circuit, 22 tungsten coppers
Peripheral frame, 23 lower chamber metal structures, 24 tile type TR assembly radio-frequency input interfaces, 25 tile type TR component control interface,
26 similar spindle-type vertical interconnecting structures, 27 co-planar waveguide circuit, 28 screws.
Detailed description of the invention
Refering to Fig. 1.In an optimal case study on implementation described below, a kind of Ka frequency range tile style structure active phased array sky
Line, including, it is divided into antenna array 1 and the active phase phased antenna tile style array of tile type TR assembly 2 composition of multiple submatrix
Framework, and each submatrix module comprises N paths, each passage has 1 independent final stage transceiving chip, and N paths shares
N/L L * channel multifunctional unit chip 20, whole submatrixs share a set of motherboard, and wherein, motherboard includes, power distribution/close
Becoming network 5, beam-controller 4 and power module 6, heat sink design, between submatrix and motherboard, uses insulator, SMP-
KK-SMP adapter, elastic contact pin, multicore low-and high-frequency socket realize low-and high-frequency interconnection；Each antenna array submatrix and tile type
TR assembly submatrix shares the vertical interconnection conversion micro strip of metallic cavity, front micro strip and tile type TR assembly 2 top layer and adopts
Connect with welding type insulator adapter, be directly installed on tile type TR assembly 2 by crimping mode, it is achieved with tile type
TR assembly integrated design；The 1 road RF signal that transmitting signal processing terminal sends is by signaling interface and radio frequency interface
Delivering to power distribute/synthesize network 5 and be divided into M road signal, beam-controller 4 is according to launching what signal processing terminal provided in real time
The azimuth of phased array antenna and angle of pitch information, be calculated phased array antenna ripple in real time by the FPGA of beam-controller 4
Shu Zhixiang, phase array antenna beam points under beam-controller 4 controls, and is converted to the phase data that each array element needs, and warp
Tile type TR assembly submatrix module delivered to respectively by low-and high-frequency interconnection multicore low-and high-frequency socket, and under the control of beam-controller,
M × N road signal is delivered to antenna array and completes the transmitting of signal, it is achieved phased array antenna launching beam synchronizes automatically controlled scan function,
Launch the 1 road RF signal that signal processing terminal sends, deliver to power and distribute/synthesize network, after being divided into M road, deliver to N respectively
The TR assembly submatrix module of passage, under the control of beam-controller, realizes M × N road jointly by M a burst of of son
Signal is launched；In like manner, the receive capabilities of the signal processing terminal reception that complete antenna array signal contrary with above-mentioned emission function.
Specific embodiment, based on the 8 integrated chips of channel multi-functional 20, uses the automatically controlled scanning active phase of tile style frame mode
Array antenna, array element scale 256, operating center frequency 27.0GHz, bandwidth 2.0GHz, right-handed circular polarization, beam scanning scope
±60°.Each submatrix module of active phase antenna tile style array architecture comprises 16 paths, and 16 paths share 28
Passage tile type TR assembly multifunctional unit chip 20.The 1 road RF signal that transmitting signal processing terminal sends is connect by signal
Mouthful and radio frequency interface deliver to power and distribute/synthesize network 5 and be divided into 16 road signals, tile type TR assembly submatrix module is in wave beam control
Under the control of device 4 processed, 16 × 16 road signals are delivered to antenna array and completes the transmitting of signal, it is achieved phased array antenna transmitted wave
Bundle synchronizes automatically controlled scanning, and receive capabilities is contrary with emission function.
Whole process is as follows: first, based on submatrix modularized design, is divided into multiple by antenna array and tile type TR assembly
Submatrix, is designed by the vertical interconnection technique of low-and high-frequency and high density integrated circuit, it is achieved antenna array submatrix and tile type TR group
Part submatrix integrated design, each integrated radiating element of submatrix module, amplifier, multifunctional unit chip 20, control
With conversion circuit etc..Secondly, extended by submatrix, may make up whole array.Many group low-and high-frequency connectors are used to carry out packet straight
The mode of inserting, is connected submatrix with motherboard respectively, carries out signal, power supply and high frequency by motherboard and external system mutual.
Refering to Fig. 2.Active phase array antenna mainly realizes the automatically controlled scanning of wave beam of Ka frequency signal.Wherein, 16 tunnels are comprised
Each submatrix module of passage uses 16 transceiving chips to be connected 2 multichannel integrated chips composition submatrixs, and 1-16 submatrix is logical
Overpower distributes/synthesizes network 5 and connects signal processing terminal, and signal processing terminal is by the wave beam control being connected with power module 6
Device 4 processed controls the integrated chip of multichannel, and wherein, the 1 road RF signal that signal processing terminal transmission goes out distributes/synthesis by power
After network is divided into 1-16 road signal, deliver to the tile type TR assembly submatrix module comprising 16 paths, each TR group respectively
16 × 16 road signals, under the control of beam-controller, are delivered to antenna array and are completed the transmitting of signal by part submatrix module；In like manner,
The reception that complete antenna array signal contrary with above-mentioned emission function of the receive capabilities of signal processing terminal.Antenna beam points to by ripple
Bundle controller is controlled, the azimuth of the antenna array that beam-controller provides in real time according to signal processing terminal and angle of pitch letter
Breath, is calculated phase array antenna beam in real time by the FPGA of beam-controller and points to, then be converted to respectively by beam-controller
The phase data that array element needs, delivers to each phase shifter module in multifunctional unit chip 20, it is achieved phase array antenna beam
Synchronize automatically controlled scan function.Phased array antenna is powered and is controlled by power module 6, and the outside+28V provided powers by electricity
Source module 6 is converted into beam-controller, the required power supply of tile type TR assembly.Power module 6 is powered whole by adapter
Being supplied to beam-controller 4, beam-controller 4 is transmitted to tile type TR assembly by adapter.
Refering to Fig. 3.Use the Ka frequency range tile style phased array antenna of integrated structure design, be distributed as from top to down: antenna
Front 1, tile type TR assembly 2, metallic cavity 3, beam-controller 4, power distribute/synthesize network 5 and power module 6.
Antenna array 1 uses the mode of lamination to be fixed on tile type TR assembly 2.For reducing the overall size of phased array antenna, each mould
Mainly use many group low-and high-frequency connectors to carry out being grouped straight cutting mode between block to connect.Interconnected mode specifically includes that tile type
Use the mode of high frequency insulator 7 to realize 256 road high frequencies between TR assembly 2 and antenna array 1 to connect；Tile type TR group
Use the mode of elastic contact pin 8 to realize 320 tunnels totally 16 groups of low frequencies between part 2 and beam-controller 4 low frequency to connect；Wave beam control
The mode of J63A series of rectangular connector body 10 is used to realize 2 Zu Gong 130 road low frequencies even between device 4 processed and power module 6
Connect；Tile type TR assembly 2 and power distribute/synthesize the high frequency between network 5 and connects through SMP-KK-SMP adapter 9
SMP-KK-SMP series of header realize 16 road high frequencies and connect.External interface includes: use J63A series of rectangular adapter
External signal is provided to control J63A series of rectangular adapter 11 for whole antenna；Power module 6 uses Y34Q series connector
Socket 12 provides externally fed for whole antenna；Wherein, antenna array 1 and tile type TR based on submatrix modularized design
Assembly 2 is divided into 16 submatrixs, and each submatrix comprises 16 array elements, each front submatrix and corresponding tile type TR assembly
The shared metallic cavity 3 of battle array, and integrated in described metallic cavity；16 × 16 arrays are formed by submatrix extended mode
Active phase array antenna, whole submatrixs share a set of power and distribute/synthesize network 5, beam-controller 4 and power module 6；
Power distributes/synthesize network 5 provides external radio frequency input/output for whole antenna, uses the K series of SMA series of header 13
Plug is fixed on power and distributes/synthesize the side of network 5 panel, and on described panel, array distribution has SMP-KK-SMP series to insert
9, by SMP-KK-SMP series of header 9 through the panel of beam-controller 4 and corresponding tile type TR assembly submatrix
2 are connected；The flexible contact pin of beam-controller 4 array distribution 8, by elastic contact pin 8 through the gold in described metallic cavity 3
Belong to cold drawing to be connected with corresponding tile type TR assembly 2；Tile type TR assembly 2 and beam-controller 4 by screw mode from two
While be separately fixed in above-mentioned metallic cold plate, metallic cold plate 3 is the primary load bearing structure of this system, is designed with in metallic cold plate 3
The liquid cold runner of connection liquid cold junction 14, liquid cold junction 14 connects firmly before and after metallic cold plate 3 on side surface body, liquid cold junction
14 provide the liquid needed for dispelling the heat cold by liquid cold runner for whole antenna, solve phased array antenna heat radiation and ask by the way of liquid is cold
Topic.
Refering to Fig. 4-Fig. 7.Submatrix modular packet is containing by 4 × 4 unit interval 5.5mm, size 22mm × 22mm divided
16 passages, wherein, antenna radiation unit 15 uses microstrip circuit form to realize, and is distributed in antenna submatrix front 16
On, shared watt of the microstrip transitions circuit 17 on antenna array submatrix unit microstrip circuit and tile type TR assembly submatrix upper port
Chip TR assembly upper cavity metal structure 18, is connected to antenna submatrix front 16 and tile type TR by high frequency insulator 7
Between the microstrip transitions circuit 17 of assembly, use pressure-bearing technology simultaneously, ultimately form with tile type TR assembly upper cavity metal
Structure 18 is that the mixing material of floor, prepreg and dielectric-slab is as the antenna array microstrip circuit of medium substrate and tile type
TR assembly microstrip circuit.The submatrix module of tile type TR assembly submatrix circuit based on the realization of tile type method is integrated with 16
The 8 integrated chips of channel multi-functional 20 and the corresponding LTCC of 19, two CMOS technology of transceiving chip change and control
Passive circuit 21, and realize thermally matched by tungsten copper peripheral frame 22 with tile type TR assembly lower chamber metal structure 23.Every height
Array module and power distribute/synthesize network a tile type TR assembly radio-frequency input/output interface 24, has with beam-controller
Two Ge Gong 20 road low frequency power supplies and control interface 25, wherein, control LTCC conversion and control passive circuit 21 use LTCC
Multilayer circuit technology, it is achieved power distributes/synthesizes network, power distribution network and width phase code and controls network；Tile type TR assembly
The microstrip line of radio frequency input/output interface 24 and LTCC internal layer banding linear heat generation rate distribute/synthesize to be changed, in LTCC between network
Layer strip line power distribute/synthesize network and multifunctional unit chip 20 input microstrip line between conversion and multifunctional unit
Change between microstrip line and the antenna element rf input port of chip 20 output, realized by similar spindle-type vertical interconnecting structure 26
The transmission of high-frequency signal；Employing co-planar waveguide circuit 27 is as the input and output side of multifunctional unit chip 20, by emulation
Spun gold key tape is entered emulation and is allowed to realize input and output matching by software, it is achieved passive circuit and the conversion of active circuit.Whole
The structure of submatrix module fills 28 by spiral shell and is assembled integrally, and the mode using stannum soldering and sealing to connect realizes the airtight of submatrix module and watertight
Encapsulation.
Motherboard uses traditional design methods.Beam-controller uses FPGA real-time computing technique, based on High Density Integration
With the Miniaturization Design that wiring technique achieves beam-controller.Power distributes/synthesizes network and uses microstrip line-waveguide cavity mixing skill
Art designs, the advantage combining microstrip line power splitter and waveguide power divider.Power module is based on high efficiency DC/DC transducer mould
Block, it is achieved high efficiency designs.
By reality processing test, the size of this principle prototype is 104mm × 104mm × 56mm, weight 1.46Kg,
There is the feature of lightweight, miniaturization.± 60 ° of beam scannings are achieved under the control of beam-controller, EIRP >=38.2dBW,
Normal direction minor level≤11.3dB, has good electrical property, and beam scanning test result is as shown in Figure 8.
The present invention illustrates referring specifically to preferred embodiment and shows, it should be understood by those skilled in the art that can be in shape
Remodeling is made without departing from spirit and scope of the invention in formula and in content.
Claims (10)
1. a Ka frequency range tile style structure active phase array antenna, including, it is divided into antenna array (1) and the tile type of multiple submatrix
The active phase phased antenna tile style array architecture that TR assembly (2) is constituted, and each submatrix module comprises N paths, each
Passage has 1 independent final stage transceiving chip, and N paths shares N/L L * channel multifunctional unit chip, it is characterised in that:
All submatrix shares a set of motherboard, and wherein, motherboard includes, power distributes/synthesize network (5), beam-controller (4) and electricity
Source module (6), heat sink design between submatrix and motherboard, use insulator, SMP-KK-SMP adapter, elastic contact pin,
Multicore low-and high-frequency socket realizes low-and high-frequency interconnection；Each antenna array submatrix and tile type TR assembly submatrix share metallic cavity,
The vertical interconnection conversion micro strip of front micro strip and tile type TR assembly (2) top layer uses welding type insulator adapter even
Connect, be directly installed on tile type TR assembly (2) by crimping mode, it is achieved integrated with tile type TR assembly set
Meter；The 1 road RF signal that transmitting signal processing terminal sends is delivered to power by signaling interface and radio frequency interface and is distributed/synthesize network
(5) being divided into M road signal, beam-controller (4) is according to the side launching the phased array antenna that signal processing terminal provides in real time
Parallactic angle and angle of pitch information, be calculated phase array antenna beam in real time by the FPGA of beam-controller (4) and point to, phase
Control array antenna beam position, under beam-controller (4) controls, is converted to the phase data that each array element needs, and through low-and high-frequency
Tile type TR assembly submatrix module delivered to respectively by interconnection multicore low-and high-frequency socket, and under the control of beam-controller, by M ×
N road signal is delivered to antenna array and is completed the transmitting of signal, it is achieved phased array antenna launching beam synchronizes automatically controlled scan function.
2. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: launch signal processing terminal
The 1 road RF signal sent, delivers to power and distributes/synthesize network, delivers to TR assembly of N channel after being divided into M road respectively
Array module, under the control of beam-controller, jointly realizes M × N road signal by M a burst of of son and launches；In like manner,
The reception that complete antenna array signal contrary with above-mentioned emission function of the receive capabilities of signal processing terminal.
3. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: active phase antenna tile style
Each submatrix module of array architecture comprises 16 paths, and 16 paths share 28 integrated chips of channel multi-functional.
4. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: launch signal processing terminal
The 1 road RF signal sent is delivered to power by signaling interface and radio frequency interface and is distributed/synthesize network (5) and be divided into 16 road signals,
16 × 16 road signals, under the control of beam-controller (4), are delivered to antenna array and are completed by tile type TR assembly submatrix module
The transmitting of signal, it is achieved phased array antenna launching beam synchronizes automatically controlled scanning.
5. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: use many group low-and high-frequency to connect
Plug-in unit carries out being grouped straight cutting mode, submatrix is connected with motherboard respectively, by motherboard and external system carry out signal, power supply, with
And high frequency is mutual.
6. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: comprise 16 paths
Each submatrix module uses 16 transceiving chips to be connected 2 multichannel integrated chips composition submatrixs, and 1-16 submatrix passes through power
Distribution/synthesis network (5) connects signal processing terminal, and signal processing terminal is by the wave beam control being connected with power module (6)
Device processed (4) controls the integrated chip of multichannel.
7. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: power module (6) leads to
Crossing adapter and all power supplies are supplied to beam-controller (4), beam-controller (4) is transmitted to tile type TR by adapter
Assembly.
8. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: use integral structure to set
The Ka frequency range tile style phased array antenna of meter, is distributed as from top to down: antenna array (1), tile type TR assembly (2), gold
Genus cavity (3), beam-controller (4), power distribute/synthesize network (5) and power module (6).
9. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: tile type TR assembly
(2) and use the mode of high frequency insulator (7) to realize 256 road high frequencies between antenna array (1) to connect；Tile type TR
The mode of elastic contact pin (8) is used to realize 320 tunnels totally 16 groups of low frequencies even between assembly (2) and beam-controller (4) low frequency
Connect；The mode using J63A series of rectangular connector body (10) between beam-controller (4) and power module (6) is real
Existing 2 Zu Gong 130 road low frequencies connect；Tile type TR assembly (2) and power distribute/synthesize the high frequency between network (5) and connects
Realize 16 road high frequencies by SMP-KK-SMP series of header (9) to connect.
10. Ka frequency range tile style structure active phase array antenna as claimed in claim 1, it is characterised in that: beam-controller (4)
The flexible contact pin of array distribution (8), by elastic contact pin (8) through the metallic cold plate in described metallic cavity (3) with corresponding
Tile type TR assembly (2) is connected；Tile type TR assembly (2) and beam-controller (4) are divided from both sides by screw mode
It is not fixed in above-mentioned metallic cold plate, metallic cold plate (3) is communicated with the liquid cold runner of liquid cold junction (14), liquid cold joint
Head (14) connects firmly before and after metallic cold plate (3) on side surface body, and liquid cold junction (14) is whole antenna by liquid cold runner
Liquid needed for providing heat radiation is cold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343067.4A CN105914476A (en) | 2016-05-20 | 2016-05-20 | Ka-band tilt-structure active phased array antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343067.4A CN105914476A (en) | 2016-05-20 | 2016-05-20 | Ka-band tilt-structure active phased array antenna |
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| CN105914476A true CN105914476A (en) | 2016-08-31 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610343067.4A Pending CN105914476A (en) | 2016-05-20 | 2016-05-20 | Ka-band tilt-structure active phased array antenna |
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