CN109995337A - A kind of power amplifier and amplification method - Google Patents
A kind of power amplifier and amplification method Download PDFInfo
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- CN109995337A CN109995337A CN201910124616.2A CN201910124616A CN109995337A CN 109995337 A CN109995337 A CN 109995337A CN 201910124616 A CN201910124616 A CN 201910124616A CN 109995337 A CN109995337 A CN 109995337A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
This application discloses a kind of power amplifier and amplification methods, comprising: module, multiple power-amplifier stage units, output work mold block, signal output end between signal input part, input work sub-module, multiple power drive grade units, grade.Input work sub-module inputs a signal into the signal that termination receives and is divided into multichannel, respectively after the amplification of each power drive unit, it is transmitted to module between grade, each amplified signal received is divided into multiple frequency bands progress multiplexing by module between grade, after being amplified by each power-amplifier stage unit, being transmitted to output work molding merged block is all the way, to export by signal output end.Modular structure is compact between grade, by the way that each circuit size of module grade is adjusted, can be controlled separately the stiffness of coupling of the corresponding frequency point position of each frequency band and each frequency band, easy to operate, vdiverse in function.
Description
Technical field
This application involves millimetre-wave attenuator technical field more particularly to a kind of power amplifiers and amplification method.
Background technique
In recent years, as microwave low-frequency spectra resource gradually exhausts, millimeter wave resource is all more next in dual-use field
More by the attention of researcher.Millimeter-wave power amplifiers are primarily served as the key component in millimeter-wave communication system
The effect of lifting system output power.Because power amplifier chip area is big, wafer processing cost is high, and multi-functional power is put
Big device design is always the target that present power amplifier chip product is pursued.Accordingly, it is desirable to provide a kind of function is more, structure is small
Power amplifier techniques.
Summary of the invention
In order to solve the above problem, the embodiment of the present application proposes a kind of power amplifier and amplification method.
On the one hand, the embodiment of the present application proposes a kind of power amplifier, comprising: sequentially connected signal input part, input
Module, multiple power-amplifier stage units, output work molding block, signal output between function sub-module, multiple power drive grade units, grade
End, wherein
The input work sub-module, for the signal received from signal input part to be divided into multichannel, as more than first group
Road signal is exported to the multiple power drive grade unit；
The multiple power stage driving unit, for will be each amplified after being amplified to first group of multiple signals
Signal is as second group of multipath signal propagation to module between grade；
Module between the grade, for second group of multiple signals to be divided into multiple frequency bands, corresponding output third group multichannel
Signal；
The multiple power-amplifier stage unit forms the 4th group of multichannel after to third group multiple signals amplification
Signal is transmitted to output work molding block；
The output work molds block, for merging into the 4th group of multiple signals all the way, is sent to signal output end output.
Preferably, the signal input part and signal output end are GSG structure, can be used for On-wafer measurement.
Preferably, module is used to second group of multiple signals being divided into three frequency bands between the grade, to each power drive
Power between grade unit and each power-amplifier stage unit is allocated and matches, and to each power drive grade unit and each power
Three band impedances between amplifying stage unit are matched, and module includes that the first function divides matching unit and the second function point between the grade
Matching unit.
Preferably, first function divides signal of the matching unit for exporting to the first power drive grade unit to filter
Wave generates three frequency bands, and is divided into two-way, and corresponding output third group multiple signals are exported respectively to the first power-amplifier stage list
Member and the second power-amplifier stage unit；
Second function divides matching unit to be filtered with to the signal for exporting the second power drive grade unit, generates three
A frequency band, and it is divided into two-way, corresponding output third group multiple signals are exported respectively to third power-amplifier stage unit and the 4th function
Rate amplifying stage unit.
Preferably, it includes: the first input coupling that first function, which divides matching unit and second function to divide matching unit,
Feeder line end, the second input coupling feeder line end, third input coupling feeder line end, the first output coupling feeder line end, the second output coupling
Feeder line end, third output coupling feeder line end, the first double frequency SIR microstrip line, the second double frequency SIR microstrip line, first single minor matters micro-strip
Transmission line and second single minor matters microstrip transmission line；
The the first double frequency SIR microstrip line and the second double frequency that first function divides matching unit and the second function to divide matching unit
SIR microstrip line is connected with first single minor matters microstrip transmission line and second single minor matters microstrip transmission line respectively；
The first input coupling feeder line end that first function divides matching unit and the second function to divide matching unit, the second input coupling
It closes feeder line end and third input coupling feeder line end is connected with the first power drive grade unit and the second power drive grade unit respectively
It connects；
The first output coupling feeder line end that first function divides matching unit and the second function to divide matching unit, the second output coupling
Close feeder line end and third output coupling feeder line end respectively with the first power-amplifier stage unit and the second power-amplifier stage unit and
Third power-amplifier stage unit and the 4th power-amplifier stage unit are connected.
Preferably, each input coupling feeder line end and corresponding each output coupling feeder line end are for controlling three frequencies
The stiffness of coupling of band.
Preferably, each double frequency SIR microstrip line and coupled single minor matters microstrip transmission line are each for adjusting
The corresponding frequency point of the frequency band.
Preferably, each frequency band can be adjusted individually.
Second aspect, the embodiment of the present application propose a kind of power-magnifying method, comprising:
The signal received from signal input part is divided into multichannel, obtains first group of multiple signals；
Amplify first group of multiple signals, obtains second group of multiple signals；
Second group of multiple signals are divided into multiple frequency bands and are divided into multichannel, obtain third group multiple signals；
Amplify the third group multiple signals, obtains the 4th group of multiple signals；
Merging the 4th group of multiple signals is all the way, and to export.
The advantages of the embodiment of the present application, is: using output coupling feeder line, input coupling feeder line, double frequency SIR microstrip line and
Single minor matters microstrip transmission line, so that modular structure is compact between grade；It may be simultaneously operated in multiple frequency bands, and pass through mould between governing stage
The size of each circuit structure unit in block can be controlled separately the coupling of the corresponding frequency point position of each frequency band and each frequency band
Intensity, it is easy to operate, it is vdiverse in function.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred implementations, and is not considered as to the application
Limitation.And throughout the drawings, identical component is indicated with same reference symbol.In the accompanying drawings:
Fig. 1 is a kind of circuit diagram of power amplifier provided by the embodiments of the present application；
Fig. 2 is that a kind of function of power amplifier provided by the embodiments of the present application divides the schematic diagram of matching unit；
Fig. 3 is a kind of schematic diagram of the double frequency SIR microstrip line of power amplifier provided by the embodiments of the present application；
Fig. 4 is a kind of frequency band adjustments schematic diagram of power amplifier provided by the embodiments of the present application；
Fig. 5 is a kind of step schematic diagram of power-magnifying method provided by the embodiments of the present application.
Description of symbols
101 first power drive grade unit, 102 second power drive grade unit
201 first power-amplifier stage unit, 202 second power-amplifier stage unit
The 4th power-amplifier stage unit of 203 third power-amplifier stage unit 204
3 signal input part, 4 signal output end
Module between 56 grades of input work sub-modules
61 first function divide 62 second function of matching unit to divide matching unit
The single minor matters microstrip transmission line of 607 first double frequency SIR microstrip line 608 first
611 first input coupling feeder line end, 612 second input coupling feeder line end
613 third input coupling feeder line end, 614 first output coupling feeder line end
615 second output coupling feeder line end, 616 third output coupling feeder line end
The single minor matters microstrip transmission line of 617 second double frequency SIR microstrip line 618 second
621 first input coupling feeder line end, 622 second input coupling feeder line end
623 third input coupling feeder line end, 624 first output coupling feeder line end
625 second output coupling feeder line end, 626 third output coupling feeder line end
627 first double frequency SIR microstrip line, 637 second double frequency SIR microstrip line
The 628 first single minor matters microstrip transmission lines of single minor matters microstrip transmission line 638 second
7 output works mold block TSV through silicon via
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
As shown in Figure 1, a kind of power amplifier that the embodiment of the present application proposes, comprising: signal input part (3), input work
Module (6), the first function between sub-module (5), the first power drive grade unit (101), the second power drive grade unit (102), grade
Rate amplifying stage unit (201), the second power-amplifier stage unit (202), third power-amplifier stage unit (203), the 4th power are put
Big grade unit (204), output work mold block (7), signal output end (4).
It is module (6) between the signal input part (3), input work sub-module (5), multiple power drive grade units, grade, multiple
Power-amplifier stage unit, output work molding block (7) and signal output end (4) are sequentially connected and connect.
The input work sub-module (5), for the signal received from signal input part (3) to be divided into multichannel, as the
One group of multiple signals is exported to the multiple power drive grade unit；
The multiple power stage driving unit, for will be each amplified after being amplified to first group of multiple signals
Signal is as second group of multipath signal propagation to module between grade (6)；
Module (6) between the grade, for second group of multiple signals to be divided into multiple frequency bands, corresponding output third group is more
Road signal；
The multiple power-amplifier stage unit forms the 4th group of multichannel after to third group multiple signals amplification
Signal is transmitted to output work molding block (7)；
Output work molding block (7) is sent to signal output end for merging into the 4th group of multiple signals all the way
(4) it exports.
The signal input part and signal output end are GSG structure, can be used for On-wafer measurement, comprising: 3 PAD interfaces
With 2 TSV dorsal pores.
Input work sub-module (5) is divided into two-way for inputting a signal into the signal that end (3) receives, as first group of multichannel
Signal is exported respectively to the first power drive grade unit (101) and the second power drive grade unit (102).
Module (6) is used to second group of multiple signals generating three frequency bands respectively between grade, to each power drive grade list
Power between first and each power-amplifier stage unit is allocated and matches, and to each power drive grade unit and each power amplification
Three band impedances between grade unit are matched, and module (6) includes that the first function divides matching unit (61) and second between the grade
Function divides matching unit (62).
First function divides signal (the second group of multichannel letter of matching unit (61) for exporting to the first power drive grade unit
Number) be filtered, three frequency bands are generated, and be divided into two-way, corresponding output third group multiple signals are exported respectively to the first power
Amplifying stage unit (201) and the second power-amplifier stage unit (202)；
Second function divides matching unit (62) with to signal (the second group of multichannel letter for exporting the second power drive grade unit
Number) be filtered, three frequency bands are generated, and be divided into two-way, corresponding output third group multiple signals are exported respectively to third power
Amplifying stage unit (203) and the 4th power-amplifier stage unit (204).
First function divides matching unit (61) to divide matching unit (62) structure identical with second function.
As shown in Fig. 2, the first function divides matching unit (61) to include: the first input coupling feeder line end (611), the second input coupling
Close feeder line end (612), third input coupling feeder line end (613), the first output coupling feeder line end (614), the feedback of the second output coupling
Line end (615), third output coupling feeder line end (616), the first double frequency SIR microstrip line (607), the second double frequency SIR microstrip line
(617), first single minor matters microstrip transmission line (608) and second single minor matters microstrip transmission line (618).The double frequency SIR microstrip line
Structure by taking the second double frequency SIR microstrip line (617) as an example, as shown in figure 3, include it is left, neutralize right three parts.Its left half and the right side
Partial equal length.
Second function divides matching unit (62) to include: the first input coupling feeder line end (621), the second input coupling feeder line end
(622), third input coupling feeder line end (623), the first output coupling feeder line end (624), the second output coupling feeder line end
(625), third output coupling feeder line end (626), the first double frequency SIR microstrip line (627), the second double frequency SIR microstrip line (637),
First single minor matters microstrip transmission line (628) and second single minor matters microstrip transmission line (638).
First function divides the first double frequency SIR microstrip line (607) and first single minor matters microstrip transmission line of matching unit (61)
(608) it is connected, the second double frequency SIR microstrip line (617) is connected with second single minor matters microstrip transmission line (618).First function point
The first input coupling feeder line end (611), the second input coupling feeder line end (612) and the feedback of third input coupling of matching unit (61)
Line end (613) is connected with the first power drive grade unit (101).First output coupling feeder line end (614), the second output coupling
Feeder line end (615) and third output coupling feeder line end (616) and the first power-amplifier stage unit (201) and the second power-amplifier stage
Unit (202) is connected.First double frequency SIR microstrip line (607) and the first input coupling feeder line end (611), the second input coupling
Feeder line end (612), the first output coupling feeder line end (614) and the second output coupling feeder line end (615) are of coupled connections, and second pair
Frequency SIR microstrip line (617) and the second input coupling feeder line end (612), third input coupling feeder line end (613), the second output coupling
It closes feeder line end (615) and third output coupling feeder line end (616) is of coupled connections.
Second function divides the first double frequency SIR microstrip line (627) and first single minor matters microstrip transmission line of matching unit (62)
(628) it is connected, the second double frequency SIR microstrip line (637) is connected with second single minor matters microstrip transmission line (638).Second function point
The first input coupling feeder line end (621), the second input coupling feeder line end (622) and the feedback of third input coupling of matching unit (62)
Line end (623) is connected with the second power drive grade unit (102).First output coupling feeder line end (624), the second output coupling
Feeder line end (625) and third output coupling feeder line end (626) and third power-amplifier stage unit (203) and the 4th power-amplifier stage
Unit (204) is connected.First double frequency SIR microstrip line (627) and the first input coupling feeder line end (621), the second input coupling
Feeder line end (622), the first output coupling feeder line end (624) and the second output coupling feeder line end (625) are of coupled connections, and second pair
Frequency SIR microstrip line (637) and the second input coupling feeder line end (622), third input coupling feeder line end (623), the second output coupling
It closes feeder line end (625) and third output coupling feeder line end (626) is of coupled connections.
The coupling that each input coupling feeder line end and corresponding each output coupling feeder line end are used to control three frequency bands is strong
Degree.Each input coupling feeder line end and each output coupling feeder line end and the gap of corresponding double frequency SIR microstrip line are smaller, coupling
It is bigger to close intensity.
Each double frequency SIR microstrip line and coupled single minor matters microstrip transmission line are corresponding for adjusting three frequency bands
Frequency point.The corresponding frequency point of each frequency band can be adjusted individually.
By taking the first function divides matching unit (61) as an example, as shown in Figure 4.The corresponding frequency point of first band is by the second double frequency SIR
The the first length L1 and the second length L2 of microstrip line (617) are determined.The middle section of the second double frequency SIR microstrip line (617)
For the first length, left and right two parts equal length.The corresponding frequency point of second band determines by the second harmonic of first band,
The position of the second harmonic is determined by adjusting impedance ratio.The impedance ratio is by adjusting the second double frequency SIR microstrip line (617)
The first width (W1) and the second width (W2) change, control the position of second harmonic by changing impedance ratio.Third frequency band
For corresponding frequency point by the first length (L1) of the second double frequency SIR microstrip line (617), the second length (L2) and second single minor matters are micro-
Third length (L3) with transmission line (618) determines jointly.The function divides matching unit to be also used to regulation power, drives to each power
Power between dynamic grade unit and each power-amplifier stage unit is allocated and matches.
Signal (the 4th group of multiple signals) synthesis one that output work molding block (7) is used to export each power-amplifier stage unit
Road, output to signal output end (4).
According to presently filed embodiment, it is also proposed that a kind of power-magnifying method, as shown in Figure 5, comprising:
The signal received from signal input part is divided into multichannel, obtains first group of multiple signals；
Amplify first group of multiple signals, obtains second group of multiple signals；
Second group of multiple signals are divided into multiple frequency bands and are divided into multichannel, obtain third group multiple signals；
Amplify the third group multiple signals, obtains the 4th group of multiple signals；
Merging the 4th group of multiple signals is all the way, and to export.
Second group of multiple signals are divided into multiple frequency bands and are divided into multichannel, obtain third group multiple signals, comprising:
As needed, the length and width and coupled single minor matters microstrip transmission line of each double frequency SIR microstrip line are adjusted
Length, obtain needed for each frequency band；
Each frequency band needed for exporting simultaneously is divided into multichannel, obtains third group multiple signals.
A kind of power amplifier provided by the embodiments of the present application uses output coupling feeder line, input coupling feeder line, double frequency SIR
Microstrip line and single minor matters microstrip transmission line, so that modular structure is compact between grade；It may be simultaneously operated in multiple frequency bands, and pass through tune
The size of each circuit structure unit between assistant warden in module can be controlled separately the corresponding frequency point position of each frequency band and each frequency
The stiffness of coupling of band, it is easy to operate, it is vdiverse in function.
The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the protection model of the claim
Subject to enclosing.
Claims (9)
1. a kind of power amplifier characterized by comprising sequentially connected signal input part, input work sub-module, Duo Gegong
Module, multiple power-amplifier stage units, output work mold block, signal output end between rate driving stage unit, grade, wherein
The input work sub-module is believed for the signal received from signal input part to be divided into multichannel as first group of multichannel
Number output is to the multiple power drive grade unit；
The multiple power stage driving unit, for after being amplified to first group of multiple signals by each amplified signal
As second group of multipath signal propagation to module between grade；
Module between the grade, for second group of multiple signals to be divided into multiple frequency bands, corresponding output third group multiple signals；
The multiple power-amplifier stage unit forms the 4th group of multiple signals after to third group multiple signals amplification
It is transmitted to output work molding block；
The output work molds block, for merging into the 4th group of multiple signals all the way, is sent to signal output end output.
2. a kind of power amplifier as described in claim 1, which is characterized in that the signal input part and signal output end are equal
For GSG structure, it can be used for On-wafer measurement.
3. a kind of power amplifier as described in claim 1, which is characterized in that module is used for described second group between the grade
Multiple signals are divided into three frequency bands, the power between each power drive grade unit and each power-amplifier stage unit is allocated and
Matching, and three band impedances between each power drive grade unit and each power-amplifier stage unit are matched, between the grade
Module includes that the first function divides matching unit and the second function to divide matching unit.
4. a kind of power amplifier as claimed in claim 3, which is characterized in that first function divides matching unit for the
The signal of one power drive grade unit output is filtered, and generates three frequency bands, and be divided into two-way, corresponding output third group multichannel
Signal is exported respectively to the first power-amplifier stage unit and the second power-amplifier stage unit；
Second function divides matching unit to be filtered with to the signal for exporting the second power drive grade unit, generates three frequencies
Band, and it is divided into two-way, corresponding output third group multiple signals are exported respectively to third power-amplifier stage unit and the 4th power and are put
Big grade unit.
5. a kind of power amplifier as claimed in claim 4, which is characterized in that first function divides matching unit and described the
It includes: the first input coupling feeder line end, the second input coupling feeder line end, third input coupling feeder line that two function, which divide matching unit,
End, the first output coupling feeder line end, the second output coupling feeder line end, third output coupling feeder line end, the first double frequency SIR micro-strip
Line, the second double frequency SIR microstrip line, first single minor matters microstrip transmission line and second single minor matters microstrip transmission line；
First function divides matching unit and the second function to divide the first double frequency SIR microstrip line of matching unit and the second double frequency SIR micro-
Band line is connected with first single minor matters microstrip transmission line and second single minor matters microstrip transmission line respectively；
The first input coupling feeder line end that first function divides matching unit and the second function to divide matching unit, the feedback of the second input coupling
Line end and third input coupling feeder line end are connected with the first power drive grade unit and the second power drive grade unit respectively；
The first output coupling feeder line end that first function divides matching unit and the second function to divide matching unit, the feedback of the second output coupling
Line end and third output coupling feeder line end respectively with the first power-amplifier stage unit and the second power-amplifier stage unit and third
Power-amplifier stage unit and the 4th power-amplifier stage unit are connected.
6. a kind of power amplifier as claimed in claim 5, which is characterized in that each input coupling feeder line end and right with it
Each output coupling feeder line end answered is used to control the stiffness of coupling of three frequency bands.
7. a kind of power amplifier as claimed in claim 5, which is characterized in that each double frequency SIR microstrip line and and its
The single minor matters microstrip transmission line being connected is for adjusting the corresponding frequency point of each frequency band.
8. a kind of power amplifier as described in claim 1, which is characterized in that each frequency band can be adjusted individually.
9. a kind of power-magnifying method characterized by comprising
The signal received from signal input part is divided into multichannel, obtains first group of multiple signals；
Amplify first group of multiple signals, obtains second group of multiple signals；
Second group of multiple signals are divided into multiple frequency bands and are divided into multichannel, obtain third group multiple signals；
Amplify the third group multiple signals, obtains the 4th group of multiple signals；
Merging the 4th group of multiple signals is all the way, and to export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124616.2A CN109995337B (en) | 2019-02-19 | 2019-02-19 | Power amplifier and amplifying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124616.2A CN109995337B (en) | 2019-02-19 | 2019-02-19 | Power amplifier and amplifying method |
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| Publication Number | Publication Date |
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| CN109995337A true CN109995337A (en) | 2019-07-09 |
| CN109995337B CN109995337B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910124616.2A Active CN109995337B (en) | 2019-02-19 | 2019-02-19 | Power amplifier and amplifying method |
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| US5175521A (en) * | 1991-05-31 | 1992-12-29 | Hughes Aircraft Company | Miniature dynamically tunable microwave and millimeter wave device |
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| CN109244614A (en) * | 2018-08-30 | 2019-01-18 | 南京理工大学 | A kind of harmonics restraint ultra-wide band filter based on DGS structure |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175521A (en) * | 1991-05-31 | 1992-12-29 | Hughes Aircraft Company | Miniature dynamically tunable microwave and millimeter wave device |
| CN101976754A (en) * | 2010-10-29 | 2011-02-16 | 华南理工大学 | Tri-band Wilkinson power distributor |
| CN109244614A (en) * | 2018-08-30 | 2019-01-18 | 南京理工大学 | A kind of harmonics restraint ultra-wide band filter based on DGS structure |
Non-Patent Citations (2)
| Title |
|---|
| KUISONG WANG等: ""A K-band power amplifier in a 0.15-um GaAs pHEMT process"", 《2018 IEEE MTT-S INTERNATIONAL WIRELESS SYMPOSIUM (IWS)》 * |
| 黎维金: ""具有滤波特性的微带功分器的研究与设计"", 《中国优秀硕士学位论文全文数据库 信息科技辑，2017年第03期》 * |
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| CN109995337B (en) | 2023-07-04 |
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