CN208675233U - A kind of multichannel tile type phased array transmitting-receiving array - Google Patents
A kind of multichannel tile type phased array transmitting-receiving array Download PDFInfo
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Abstract
The utility model discloses a kind of multichannel tile type phased arrays to receive and dispatch array, belongs to phased-array technique field.The utility model array includes submatrix module layer, heat dissipating layer and functional circuit layer, submatrix module layer includes submatrix module, submatrix module includes the upper layer metal shell and lower metal shell mutually fastened, closed cavity is formed between upper layer metal shell and lower metal shell, the upper surface of upper layer metal shell is equipped with antenna circuit board, the lower surface of upper layer metal shell is equipped with transmission circuit plate, transmission circuit plate is equipped with power distribution/synthesis network and power supply control interface, lower metal shell is equipped with the second radio frequency connector and low-frequency connector, low-frequency connector and the power supply control interface interconnect.It is with good thermal diffusivity and air-tightness, and integration degree is high, and small in volume is easy to use, and the section height of array can be effectively reduced, and is advantageously implemented integration and the Miniaturization Design of array.
Description
Technical field
The utility model relates to phased-array technique fields, in particular to a kind of multichannel tile type phased array to receive and dispatch array.
Background technique
The development of phased-array technique promotes the further development of Radar Technology.Phased-array radar has good flexible
Property, fast beam scanning the advantages that.Opposite tradition machinery formula scanning radar, width phase of the phased-array radar by control array element, energy
Enough realize the quick scanning of wave beam.In view of the superiority of phased-array technique, more and more observing and controlling and communication scenes use phased array
System.
In general, a phased array array has multiple channels, with increasing for number of channels, entire phased array product also becomes
It is very huge, it is even more than the received volume requirement of whole system institute energy, to limit the application of phased-array technique.
With the development of integrated circuit technique, phased array, which is received and dispatched, more and more uses radio frequency integrated chip in array, this
A little chips usually require good air-tightness to prevent chip from being corroded by aqueous vapor etc. and damage.
Utility model content
In view of the deficiencies of the prior art, the utility model proposes a kind of multichannel tile type phased arrays to receive and dispatch array, should
Array structure is compact, small volume, has good air-tightness.
To achieve the goals above, technical solution adopted in the utility model are as follows:
A kind of multichannel tile type phased array transmitting-receiving array, successively includes submatrix module layer, heat dissipating layer and function from top to bottom
Energy circuit layer, the submatrix module layer includes multiple submatrix modules being distributed in a manner of rectangular array, and the submatrix module includes
The upper layer metal shell and lower metal shell mutually fastened, forms closed between upper layer metal shell and lower metal shell
Cavity, the upper surface of upper layer metal shell are equipped with antenna circuit board, and the lower surface of upper layer metal shell is equipped with transmission circuit plate, day
Multiple paster antennas are distributed on line circuit board in a manner of rectangular array, the transmission circuit plate is equipped with power distribution/synthesis
Network and power supply control interface, the paster antenna pass through the first radio frequency connector and transmission circuit across upper layer metal shell
Plate connection, the lower metal shell be equipped with the second radio frequency connector and low-frequency connector, second radio frequency connector with
The interconnection of the power distribution/synthesis network combining interface, the low-frequency connector and the power supply control interface interconnect；It is described
Heat dissipating layer is equipped with corresponding to the second radio frequency connector and the perforation of the interface of low-frequency connector, and interior is equipped with of the functional circuit layer is closed
Road module, frequency-variable module, wave control module and power module, second radio frequency connector, combining module, become low-frequency connector
It is connected between object in frequency module, wave control module and power module with connection relationship by cable.
Optionally, the antenna circuit board is welded on the upper surface of upper layer metal shell, the transmission circuit by soldering paste
Plate is welded on the lower surface of upper layer metal shell by soldering paste.
Optionally, first radio frequency connector and the transmission circuit plate weld, and the transmission circuit plate is equipped with and penetrates
Frequency chip, the radio frequency chip are connect by gold wire bonding technique with the first radio frequency connector or transmission circuit plate.
Optionally, the power distribution/synthesis network is the function more than one point based on Wilkinson power divider point/combining net
Network.
Optionally, the lower metal shell is equipped with boss and groove, and the boss is equipped with Heat Conduction Material, described to lead
Hot material is for realizing the good heat conductive between transmission circuit plate and lower metal shell, and the groove is for accommodating transmission circuit
Protrude element on plate.
Optionally, the interconnection between second radio frequency connector and the power distribution/synthesis network combining interface
Mode is elastic contact type connection, and the low-frequency connector and the interconnection mode of the power supply control interface are also elastic contact type
Connection.
Beneficial effect by adopting the above technical scheme is:
1, the utility model array uses vertical interconnection mode, and the section height of phased array array can be effectively reduced, have
Conducive to the integration and miniaturization for realizing array.
2, the sky between upper layer metal shell and lower metal shell is arranged in transmission circuit plate by the utility model array
It is intracavitary, the air-tightness of submatrix module can be reinforced, prevent chip from being corroded and be damaged by aqueous vapor etc..
3, the utility model array uses stratiform modular organization, easily fabricated, convenient for extension, has extremely strong practical
Property.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram that multichannel tile type phased array receives and dispatches array in the utility model embodiment, figure
In only symbolically depict a sub- array module；
Fig. 2 is a kind of structural schematic diagram of power distribution/synthesis network in submatrix module；
Fig. 3 is the record principle figure of submatrix module；
Fig. 4 is the emission principle figure of submatrix module；
Fig. 5 a~c is respectively vertical view, side view and the bottom view of submatrix module；
Fig. 6 is the structural schematic diagram of heat dissipating layer in Fig. 1；
Fig. 7 is the structural schematic diagram of functional circuit layer；
Fig. 8 a and b are respectively the vertical view and bottom view of Fig. 1.
Specific embodiment
The utility model is described further with practical below in conjunction with the example in attached drawing.
A kind of multichannel tile type phased array transmitting-receiving array, successively includes submatrix module layer, heat dissipating layer and function from top to bottom
Energy circuit layer, the submatrix module layer includes multiple submatrix modules being distributed in a manner of rectangular array, and the submatrix module includes
The upper layer metal shell and lower metal shell mutually fastened, forms closed between upper layer metal shell and lower metal shell
Cavity, the upper surface of upper layer metal shell are equipped with antenna circuit board, and the lower surface of upper layer metal shell is equipped with transmission circuit plate, day
Multiple paster antennas are distributed on line circuit board in a manner of rectangular array, the transmission circuit plate is equipped with power distribution/synthesis
Network and power supply control interface, the paster antenna pass through the first radio frequency connector and transmission circuit across upper layer metal shell
Plate connection, the lower metal shell be equipped with the second radio frequency connector and low-frequency connector, second radio frequency connector with
The interconnection of the power distribution/synthesis network combining interface, the low-frequency connector and the power supply control interface interconnect；It is described
Heat dissipating layer is equipped with corresponding to the second radio frequency connector and the perforation of the interface of low-frequency connector, and interior is equipped with of the functional circuit layer is closed
Road module, frequency-variable module, wave control module and power module, second radio frequency connector, combining module, become low-frequency connector
It is connected between object in frequency module, wave control module and power module with connection relationship by cable.
Optionally, the antenna circuit board is welded on the upper surface of upper layer metal shell, the transmission circuit by soldering paste
Plate is welded on the lower surface of upper layer metal shell by soldering paste.
Optionally, first radio frequency connector and the transmission circuit plate weld, and the transmission circuit plate is equipped with and penetrates
Frequency chip, the radio frequency chip are connect by gold wire bonding technique with the first radio frequency connector or transmission circuit plate.
Optionally, the power distribution/synthesis network is the function more than one point based on Wilkinson power divider point/combining net
Network.
Optionally, the lower metal shell is equipped with boss and groove, and the boss is equipped with Heat Conduction Material, described to lead
Hot material is for realizing the good heat conductive between transmission circuit plate and lower metal shell, and the groove is for accommodating transmission circuit
Protrude element on plate.
Optionally, the interconnection between second radio frequency connector and the power distribution/synthesis network combining interface
Mode is elastic contact type connection, and the low-frequency connector and the interconnection mode of the power supply control interface are also elastic contact type
Connection.
Submatrix module in above-mentioned multichannel tile type phased array transmitting-receiving array can manufacture with the following method:
(1) the first radio frequency connector and upper layer metal shell are subjected to integral sintering molding with the first temperature；
(2) transmission circuit plate is welded on by soldering paste with the first solidification temperature to the lower surface of upper layer metal shell, meanwhile,
The welding of the lower end of transmission circuit plate and the first radio frequency connector；Then, by conducting resinl with the second solidification temperature by radio frequency chip
It is welded on transmission circuit plate；Then, the interconnection of radio frequency chip and transmission circuit plate is realized by gold wire bonding technique；
(3) the second radio frequency connector and low-frequency connector and lower metal shell are subjected to integral sintering with second temperature
Molding；
(4) by upper layer metal shell and lower metal shell make-up, so that the second radio frequency connector and power distribution/synthesis
The combining interface of network interconnects, and low-frequency connector and power supply control interface interconnect；Then make-up joint close gap carries out Laser seal welding, from
And closed cavity is formed between upper layer metal shell and lower metal shell；
(5) antenna circuit board is welded to by soldering paste with third solidification temperature to the upper surface of upper layer metal shell, meanwhile,
The welding of the upper end of the bay of antenna circuit board and the first radio frequency connector；
First temperature and second temperature are all larger than the first solidification temperature, first solidification temperature, the second solidification temperature
Degree and third solidification temperature are successively successively decreased.For example, the first temperature and second temperature can be 350 DEG C, the first solidification temperature, second
Solidification temperature and third solidification temperature can be followed successively by 300 DEG C, 280 DEG C and 250 DEG C.
In this method, the sintering temperature highest of the first radio frequency connector and upper layer metal shell, transmission circuit plate and upper layer
The welding temperature of metal shell is slightly lower, and radio frequency chip is low with the welding temperature time of transmission circuit plate, antenna circuit board and upper layer gold
The welding temperature for belonging to shell is minimum.This temperature difference can guarantee that subsequent welding will not influence the element previously welded, prevent
Because temperature is excessively high, soldering paste melts and falls off the element only previously welded.
Fig. 1~8 show a kind of specific multichannel tile type phased array transmitting-receiving array, assembly method are as follows:
8 sub- array modules 100 are fixed by screws in the upper surface of heat dissipating layer 200 first；
Then the modules such as combining, frequency conversion and wave control power supply are fixedly mounted on to the lower surface of heat dissipating layer 200, these modules again
Constitute functional circuit layer 300.
Wherein, the processing and assembly method of submatrix module 100 are as follows:
1, according to antenna size and feed position, design processing upper layer metal shell 102, by the upper layer gold of machine-shaping
Belong to shell 102 and 128 glass insulator (i.e. the glass insulator of radio frequency connector 106) and carries out integral sintering molding；So
Transmitting-receiving multi-layer PCB 103 is sintered by soldering paste in the lower surface of upper layer metal shell 102 afterwards；
2, by MMIC(, that is, radio frequency chip 107) it is sintered to fix on the surface of transmitting-receiving multi-layer PCB 103, then by conducting resinl
The interconnection between glass insulator conductor and MMIC is completed by bond technology, in addition, if the distance between MMIC is too small, it is difficult
Pad is arranged on transmitting-receiving multi-layer PCB 103, then spun gold interconnection is realized also by bond technology between MMIC；
3, the radio frequency connector 109 of radio frequency combining output port and low-frequency connector 110 are sintered using soldering paste in lower layer
On metal shell 105, and highly heat-conductive material, absorbing material and hair knob are pasted on the corresponding position of lower metal shell 105
Button；
4, upper layer metal shell 102 and lower metal shell 105 merga pass screw is detained to fix；
5, using the test fixture coaxial configuration with the radio frequency connector 106 on upper layer metal shell 102 respectively, and under
The test and debugging work in all channels are once completed in the coaxial configuration docking of radio frequency connector 109 on layer metal shell 105
Make；
6, after the equal test and debugging in channels all in submatrix is qualified, antenna multi-layer PCB 101 is used into low temperature soldering paste or conduction
Glue is sintered to fix in the upper surface of upper layer metal shell 102, and on the ground that the feeding point of each electric wire and radio frequency connector contact
Fang Jinhang welding；
7, finally, using Laser seal welding at the contact gap of upper layer metal shell 102 and lower metal shell 105, make
Submatrix module integrally meets air-tightness requirement.
For the air-tightness for guaranteeing submatrix module, the following is needed to pay attention in the processing of submatrix module:
1, after glass insulator sinters, first can by naked eyes and by its tin cream of micro- sem observation sintering whether
Full, whether flowing is sufficiently and uniform.Secondly empty presence can have been detected whether by XRD imaging analysis.
2, screw is fixed from lower metal shell 105 to upper layer metal shell 102, and on lower metal shell 105
With counterbore；After installing to screw, Laser seal welding is carried out by additional minor flaps, to guarantee the airtight of submatrix module
Property.
3, after completing the Laser seal welding between upper layer metal shell 102 and lower metal shell 105, can be leaked by Rough Inspection and
The mode of helium Rough Inspection leakage positions non-hermetically sealed position, and repair welding again.
After the completion of submatrix module assembling and setting, 8 sub- array modules are spelled into battle array by rotation and are fixed on the upper of heat dissipating layer 200
Surface, and the combining assembled, frequency conversion, wave control, power module are fixed by screws in the lower surface of heat dissipating layer 200, assembly
Good is outer shaped like shown in Fig. 8 a, b.
In addition, boss and groove structure can also be arranged in lower metal shell, and Heat Conduction Material is set on boss
104, in this way, the Heat Conduction Material 104 on lower metal shell boss is proper when upper layer metal shell is fastened in lower metal shell
Transmission circuit plate is contacted well, forms good radiator structure, meanwhile, the protruding component in transmission circuit plate is located exactly at groove
In, it avoids and the contact of lower metal shell.
Still see Fig. 1~8, a kind of multichannel tile type phased array receives and dispatches array comprising 4 × 2 sub- array modules 100, totally 8
A sub- array module, the bay number in each submatrix module are 8 × 16.Array element spacing passes through system operating frequency and scanning
Angle determines.Each submatrix module includes antenna multi-layer PCB 101, upper layer metal shell 102, transmitting-receiving multi-layer PCB 103 and lower layer's gold
Belong to shell 105；Antenna multi-layer PCB and transmitting-receiving multi-layer PCB pass through the realization radio frequency letter of radio frequency connector 106 in the metal shell of upper layer
Number vertical interconnection, transmitting-receiving multi-layer PCB plate and lower metal shell on radio frequency connector 109 and low-frequency connector 110 then
The vertical interconnection of signal is realized using hair button, the cavity between upper layer metal shell and lower metal shell passes through Laser seal welding
111 guarantee air-tightness, to avoid the radio frequency chip 107 on transmitting-receiving multi-layer PCB 103 from the erosion of aqueous vapor.8 sub- array modules
It is connect with monolith radiator structure 200, to complete the splicing of entire array, all submatrix modules pass through radio frequency connector
109 connect with the combining in functional circuit layer 300, frequency conversion, wave control, power module, realize full battle array radiofrequency signal synthesis, and carry out
Frequency conversion；Meanwhile all submatrix modules are connect with combining, frequency conversion, wave control, power module by low-frequency connector 110 and realize full battle array
Beam point steering is synthesized, and each submatrix module is powered.
Submatrix module includes 128 channels, and power distribution/synthesis network is as shown in Figure 2.Each channel includes independent
Low noise, power amplifier, filter, digital phase shifter, numerical-control attenuator and serioparallel exchange chip, submatrix complete submatrix by power splitter
The function combiner of signal exports, and submatrix power supply and the switching of transmit-receive switch and the width phase control interface in channel then pass through the low of submatrix
Frequency connector is drawn, and sending and receiving circuit is as shown in Figure 3, Figure 4.
Antenna multi-layer PCB 101 is designed using multiplayer microwave plate, and it includes isolated part, spokes between aerial radiation patch array element
It penetrates patch to be welded by the via hole on plate with radio frequency connector 106 after transformation, thus the signal that antenna is received
It is vertically transported to transmitting-receiving multi-layer board, or multiple-plate transmitting signal will be received and dispatched is vertically transported to antenna and radiate.
The glass for installing radio frequency connector 106 in upper layer metal shell 102 at each array element feeding point of respective antenna is exhausted
Edge interconnects for realizing the radiofrequency signal between antenna multi-layer PCB and transmitting-receiving multi-layer PCB.
It receives and dispatches multi-layer PCB 103 to design using multiplayer microwave plate, it includes radio-frequency feed networks, chip supply network, chip
Control network and secondary power supply conversion module.Receive and dispatch multi-layer PCB 103 and Multi-channel multifunctional transceiving chip (i.e. radio frequency chip
107) it is interconnected by gold wire bonding technique (spun gold is as shown in figure 1 shown in 108).Receive and dispatch multi-layer PCB and penetrating in the metal shell of upper layer
Frequency connector is connected using welding procedure, is received and dispatched the microwave on multi-layer PCB board and is combined the low frequencies such as signaling point, and power supply, control
Input/output pads is all made of metal silver paste and tamps process.
Lower metal shell is in the microwave signal combining point of corresponding multi-layer PCB board and power supply, control low frequency input and output point
A mao button is separately installed on position, for realizing radiofrequency signal and low frequency signal and input/output interface on transmitting-receiving multi-layer PCB
Connection.
Upper layer metal shell and lower metal shell make-up, and Laser seal welding is used at the contact gap of two metal shells
111 realize the air-tightness of submatrix module.Submatrix module upper surface is antenna, and lower surface is that radio frequency connector 109 is connected with low frequency
Device 110, structure is as shown in Figure 5.
It include heat pipe in heat dissipating layer, can be quickly by heat derives caused by the submatrix module of upper surface, while it can be with
The combining of bottom, frequency conversion, wave control, heat derives caused by power module will be mounted on, to guarantee dissipating for each module of system
Heat demand.
8 sub- array modules are fixed on heat dissipating layer upper surface by the way of rotary splicing, correspond to submatrix mould on heat dissipating layer
The installed position of block and functional circuit layer is respectively equipped with mounting hole 202 and mounting hole 203, meanwhile, correspond on heat dissipating layer
Fluting or aperture 201 are equipped at the position of radio frequency connector 109 and low-frequency connector 110, fluting or aperture 201 can facilitate submatrix
Radiofrequency signal, power supply and the low-frequency control signal of module and combining, frequency conversion, wave control, the connection of power module of bottom, heat dissipating layer
Structure it is as shown in Figure 6.
Functional circuit layer includes 4 combining, frequency conversion, wave control, power supply functional modules, mutual to meet functions circuit
Do not interfere and the requirement of electromagnetic compatibility, 4 metallic channels can be etched on block of metal plate, i.e., combining slot 301, frequency conversion slot 302,
Power slot 303 and wave control slot 304, functions circuit are separately mounted in different metallic channels, are finally subject to metal cover
Plate sealing, makes functions circuit in mutually independent wire chamber, thus meet EMC Requirements, functional circuit layer
Structure it is as shown in Figure 7, wherein in bottom view it can be seen that corresponding to Fig. 1 the total port 306 of power interface 305, radio frequency and control
Port 304 processed.
In short, the utility model is tied antenna, transceiver module, cooling using vertical interconnection structure and Laser seal welding technology
Phased array array can be effectively reduced to achieve the purpose that miniaturization in structure, frequency conversion, wave control, power supply integration integration packaging
Section height, and can guarantee the air-tightness and thermal diffusivity of submatrix module simultaneously.
The utility model can be used for ground or airborne radar transmitting-receiving array, have good thermal diffusivity and air-tightness,
Integration degree is high, small in volume, easy to use, and the section height of array can be effectively reduced, be advantageously implemented array
Integration and Miniaturization Design.
Claims (6)
1. a kind of multichannel tile type phased array receives and dispatches array, it is characterised in that: from top to bottom successively include submatrix module layer, dissipate
Thermosphere and functional circuit layer, the submatrix module layer include multiple submatrix modules being distributed in a manner of rectangular array, the submatrix
Module includes the upper layer metal shell and lower metal shell mutually fastened, shape between upper layer metal shell and lower metal shell
At closed cavity, the upper surface of upper layer metal shell is equipped with antenna circuit board, and the lower surface of upper layer metal shell is equipped with transmitting-receiving
Circuit board, multiple paster antennas are distributed on antenna circuit board in a manner of rectangular array, and the transmission circuit plate is equipped with power
Distribution/synthesis network and power supply control interface, the paster antenna pass through the first radio frequency connector across upper layer metal shell
It is connect with transmission circuit plate, the lower metal shell is equipped with the second radio frequency connector and low-frequency connector, and described second penetrates
Frequency connector and the power distribution/synthesis network combining interface interconnect, and the low-frequency connector connects with the power supply control
Mouth interconnection；The heat dissipating layer is equipped with corresponding to the second radio frequency connector and the perforation of the interface of low-frequency connector, the function electricity
Be equipped with combining module, frequency-variable module, wave control module and power module in the floor of road, second radio frequency connector, low-frequency connector,
It is combined between the object in module, frequency-variable module, wave control module and power module with connection relationship and is connected by cable.
2. multichannel tile type phased array according to claim 1 receives and dispatches array, it is characterised in that: the antenna circuit board
The upper surface of upper layer metal shell is welded on by soldering paste, the transmission circuit plate is welded on upper layer metal shell by soldering paste
Lower surface.
3. multichannel tile type phased array according to claim 1 receives and dispatches array, it is characterised in that: first radio frequency connects
It connects device and the transmission circuit plate welds, the transmission circuit plate is equipped with radio frequency chip, and the radio frequency chip passes through spun gold key
Technique is closed to connect with the first radio frequency connector or transmission circuit plate.
4. multichannel tile type phased array according to claim 1 receives and dispatches array, it is characterised in that: the power distribution/
Synthesizing network is the function more than one point based on Wilkinson power divider point/combining network.
5. multichannel tile type phased array according to claim 1 receives and dispatches array, it is characterised in that: the lower metal shell
Body is equipped with boss and groove, and the boss is equipped with Heat Conduction Material, and the Heat Conduction Material is for realizing transmission circuit plate under
Good heat conductive between layer metal shell, the groove are used to accommodate the protrude element on transmission circuit plate.
6. multichannel tile type phased array according to claim 1 receives and dispatches array, it is characterised in that: second radio frequency connects
The interconnection mode between device and the power distribution/synthesis network combining interface is connect as elastic contact type connection, the low frequency
Connector is also that elastic contact type is connect with the interconnection mode of the power supply control interface.
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| CN201821608102.1U CN208675233U (en) | 2018-09-29 | 2018-09-29 | A kind of multichannel tile type phased array transmitting-receiving array |
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| CN201821608102.1U CN208675233U (en) | 2018-09-29 | 2018-09-29 | A kind of multichannel tile type phased array transmitting-receiving array |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245793A (en) * | 2018-09-29 | 2019-01-18 | 中国电子科技集团公司第五十四研究所 | A kind of multichannel tile type phased array transmitting-receiving array and its manufacturing method |
| CN110456316A (en) * | 2019-07-05 | 2019-11-15 | 四川九州空管科技有限责任公司 | A kind of multifunction array radar multichannel transmitting-receiving correction system and method |
| CN112019229A (en) * | 2020-08-27 | 2020-12-01 | 成都天锐星通科技有限公司 | K frequency channel tile formula metal packaging subassembly |
| CN113131211A (en) * | 2019-12-31 | 2021-07-16 | 中移(成都)信息通信科技有限公司 | Phased array antenna device |
-
2018
- 2018-09-29 CN CN201821608102.1U patent/CN208675233U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245793A (en) * | 2018-09-29 | 2019-01-18 | 中国电子科技集团公司第五十四研究所 | A kind of multichannel tile type phased array transmitting-receiving array and its manufacturing method |
| CN110456316A (en) * | 2019-07-05 | 2019-11-15 | 四川九州空管科技有限责任公司 | A kind of multifunction array radar multichannel transmitting-receiving correction system and method |
| CN113131211A (en) * | 2019-12-31 | 2021-07-16 | 中移(成都)信息通信科技有限公司 | Phased array antenna device |
| CN112019229A (en) * | 2020-08-27 | 2020-12-01 | 成都天锐星通科技有限公司 | K frequency channel tile formula metal packaging subassembly |
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