CN220291990U - Miniaturized compact desk-top power amplifier - Google Patents
Miniaturized compact desk-top power amplifier Download PDFInfo
- Publication number
- CN220291990U CN220291990U CN202321153760.7U CN202321153760U CN220291990U CN 220291990 U CN220291990 U CN 220291990U CN 202321153760 U CN202321153760 U CN 202321153760U CN 220291990 U CN220291990 U CN 220291990U
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- China
- Prior art keywords
- power amplifier
- radio frequency
- power
- metal shell
- amplifier module
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 49
- 239000002184 metal Substances 0.000 claims abstract description 49
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims 3
- 238000004806 packaging method and process Methods 0.000 claims 2
- 238000004891 communication Methods 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
The utility model discloses a miniaturized compact desk-top power amplifier in the technical field of power amplifiers, which comprises a metal shell, a radio frequency power amplifier module and a DC-DC step-down power supply board, wherein the radio frequency power amplifier module and the DC-DC step-down power supply board are closely arranged in an inner cavity of the metal shell, the DC-DC step-down power supply board is used for supplying power to the radio frequency power amplifier module by input voltage, the width of the inner cavity of the metal shell is equal to that of the radio frequency power amplifier module, the radio frequency power amplifier module comprises a power amplifying circuit, the upstream of the power amplifying circuit is connected with an input matching network, the upstream of the input matching network is connected with a radio frequency source, and the downstream of the power amplifying circuit is connected with an output matching network. According to the utility model, the width of the inner cavity of the metal shell is equal to the width of the radio frequency power amplifier module, so that the interference of the connection of the input and output ports of the radio frequency power amplifier module can be avoided, and meanwhile, a compact table-type radio frequency power amplifier with a smaller volume than that of the existing power amplifier is formed, and the convenience of power supply is improved.
Description
Technical Field
The utility model relates to the technical field of power amplifiers, in particular to a miniaturized compact desk type power amplifier.
Background
The power amplifier is the main amplifier of the transmitter rf front-end, which is the key device of the rf front-end module for converting low power signals from communication and radar equipment into high power transmission signals to the antenna. The goal of the power amplifier is to increase the signal gain to a high power level without degrading the signal quality, and when sufficient rf power is available for rf signal power, it is transmitted to the antenna or terminal. Along with the maturity of 5G millimeter wave technology, power amplifier's application is more and more extensive, like cell-phone terminal, communication base station, thing networking equipment, military weather radar etc. and application scene is complicated changeable, therefore, the portability and the easy operability of link device have become the focus of many experimental platform attention.
At present, most of verification of wireless transmission receiving and dispatching schemes is based on a test platform or darkroom to perform a large amount of early work, in actual use, a power supply mode of an existing amplifier module is complicated and is easy to operate by mistake to cause device damage, on the other hand, the existing amplifier is difficult to stably fix on a platform surface, and in some complex test scenes, test tasks cannot be efficiently and stably completed, so that the use situation of the amplifier is limited, and on the basis of the limited use situation, the study on a miniaturized compact desktop power amplifier (LCBT) becomes a key problem to be solved in the field.
Disclosure of Invention
The utility model aims to provide a miniaturized compact desk-top power amplifier so as to solve the problems that the power supply mode of the existing amplifier module is complicated, the device is easy to damage due to misoperation and the use occasion is limited.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a miniaturized compact desk-top power amplifier, includes the metal casing and hugs closely and install the radio frequency power amplifier module, DC-DC step-down power supply board of metal casing inner chamber, DC-DC step-down power supply board is used for input voltage to supply power to the radio frequency power amplifier module to can also effectively protect the power amplifier when improving the power supply flexibility, avoid overvoltage or maloperation short circuit and damage the power amplifier, the width of metal casing inner chamber with the width of radio frequency power amplifier module equals, avoids interfering the connection of radio frequency power amplifier module input output port, forms the compact desk-top radio frequency power amplifier that reduces than active amplifier volume simultaneously, promotes the convenience of power supply, through being suitable for fields such as microwave experiment platform, microwave camera near-field revolving stage, unmanned aerial vehicle unit communication and marine communication, can make the metal casing as the heat radiation structure of power amplifier simultaneously, strengthen the heat dissipation function of metal casing, reduce the influence of high temperature to the power amplifier performance, the radio frequency power amplifier module includes power amplifier circuit, and the upstream of power amplifier circuit is connected with the input matching network, the power amplifier circuit's upstream connection radio frequency power amplifier module input/output port's connection, the power amplifier's the power amplifier output port is connected with the air-cooled down-conditioner is installed to the heat sink, the heat-sink assembly is installed to the heat-sink assembly, the heat-sink assembly is installed to the heat-sink assembly is connected with the heat sink assembly, the heat sink assembly is installed to the heat sink assembly of the heat dissipation part is installed to the heat sink assembly respectively, the heat sink assembly is connected to the heat sink assembly.
As a further scheme of the utility model: the radio frequency power amplifier module is used for amplifying radio frequency power without distortion, and the metal shell is made of metal materials with an oxide layer on the surface.
As a further scheme of the utility model: the metal shell comprises a 12mm metal button switch, a power socket, a program-controlled connection power supply end and a grounding end which are arranged on the front face, wherein the power socket is a 220V alternating current socket and is converted into a +12V or +24V direct current power supply, the power socket comprises a fuse base, and a power supply and control module is formed by matching the DC-009 power socket with the 12mm metal button switch.
As a further scheme of the utility model: the heat transfer radiating component is a radiating fin with broken grooves and equidistant covering the top of the metal casing and is used for cooling and radiating the radio frequency power amplifier module, and the radiating fin is a copper sheet or an aluminum alloy sheet.
As a further scheme of the utility model: the air-cooled heat dissipation assembly comprises mutually symmetrical air inlet fans, and the air inlet fans are used for blowing heat dissipation airflow into the top heat dissipation fins.
As a further scheme of the utility model: the bottom of metal casing can be dismantled and be connected with the encapsulation board, and the encapsulation board has fixed mounting hole, promotes the stability that metal casing installed and used.
As a further scheme of the utility model: the DC-DC step-down power panel comprises a power supply and control module, and is connected with the radio frequency power amplifier module, the 12mm metal button switch and the power socket 4 through conductive jumpers.
As a further scheme of the utility model: the load is one or more of a resistive load, a capacitive load or an inductive load.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the width of the inner cavity of the metal shell is equal to the width of the radio frequency power amplifier module, so that the interference of the connection of the input and output ports of the radio frequency power amplifier module can be avoided, and meanwhile, a compact table-type radio frequency power amplifier with a smaller volume than that of the existing power amplifier is formed, and the convenience of power supply is improved.
2. According to the utility model, the radio frequency power amplifier module is suitable for the fields of microwave experiment platforms, microwave darkroom near-far field turntables, unmanned aerial vehicle set communication, ship communication and the like, the application occasions of the power amplifier can be expanded, and meanwhile, the metal shell can be used as a heat dissipation structure of the power amplifier, so that the heat dissipation function of the metal shell is enhanced.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is an enlarged view of FIG. 1A in accordance with the present utility model;
FIG. 3 is a front view of the present utility model;
FIG. 4 is a left side view of the present utility model;
FIG. 5 is a top view of the present utility model;
FIG. 6 is a diagram of electrical connections of a radio frequency power amplifier module according to the present utility model;
FIG. 7 is a graph of gain of a radio frequency power amplifier according to the present utility model;
fig. 8 is a graph of input versus output power for a rf power amplifier according to the present utility model.
In the figure: 1. a radio frequency power amplifier module; 101. a power amplifying circuit; 102. a power supply and control module; 103. outputting a matching network; 104. inputting a matching network; 2. a DC-DC step-down power supply board; 3. a metal push button switch; 4. a power socket; 5. a metal chassis; 6. a first inlet fan; 7. a package plate; 8. a heat transfer heat dissipation member; 9. a power amplifier input interface; 10. a power amplifier output interface; 11. the program control is connected with the power supply end; 12. a grounding end; 13. a second inlet fan; 131. a radio frequency source; 14. and (3) loading.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
This embodiment;
referring to fig. 1-8, in an embodiment of the present utility model, a miniaturized compact desk-top power amplifier includes a metal casing 5, and a rf power amplifier module 1 and a DC-DC buck power board 2 which are closely mounted in an inner cavity of the metal casing 5, the rf power amplifier module 1 is used for amplifying rf power without distortion, the DC-DC buck power board 2 includes a power supply and control module 102, the DC-DC buck power board 2 is connected with the rf power amplifier module 1, a 12mm metal button switch 3 and a power socket 4 through conductive jumpers, the DC-DC buck power board 2 is used for supplying power to the rf power amplifier module 1 by an input voltage, so as to improve power supply flexibility and effectively protect the power amplifier while avoiding damaging the power amplifier due to overvoltage or misoperation short circuit, the width of the inner cavity of the metal casing 5 is equal to that of the rf power amplifier module 1, the connection of input and output ports of the radio frequency power amplifier module 1 is avoided being interfered, a compact desk type radio frequency power amplifier with a smaller volume than the existing power amplifier is formed, the convenience of power supply is improved, the application occasions of the power amplifier are expanded by being applicable to the fields of microwave experiment platforms, microwave darkroom near-far-field turntables, unmanned aerial vehicle communication, ship communication and the like, meanwhile, the metal shell 5 can be used as a heat dissipation structure of the power amplifier, the heat dissipation function of the metal shell 5 is enhanced, the influence of high temperature on the internal performance of the power amplifier is reduced, the metal shell 5 comprises a 12mm metal button switch 3, a power socket 4, a program-controlled connection power supply end 11 and a grounding end 12 which are arranged on the front surface, the power socket 4 is a 220V alternating current socket and is converted into a +12V or +24V direct current power supply, the power socket 4 comprises a fuse base, the power supply and control module 102 is formed by matching the DC-009 power socket 4 with the 12mm metal push-button switch 3, the radio frequency power amplifier module 1 comprises a power amplifier circuit 101, an input matching network 104 is connected to the upstream of the power amplifier circuit 101, a radio frequency source 131 is connected to the upstream of the input matching network 104, an output matching network 103 is connected to the downstream of the power amplifier circuit 101, a load 14 is connected to the downstream of the output matching network 103, a power amplifier input interface 9 and a power amplifier output interface 10 are respectively installed on two sides of a metal shell 5, a heat transfer radiating component 8 is installed on the top of the metal shell 5, and symmetrical air cooling radiating components are installed on the top of the heat transfer radiating component 8 for radiating of the power amplifier.
Preferably, as shown in fig. 1, the metal casing 5 is made of a metal material having an oxide layer on the surface.
Preferably, as shown in fig. 1, the heat transfer and dissipation component 8 is an equidistant broken groove heat dissipation fin covered on the top of the metal casing 5, for cooling and dissipation of the rf power amplifier module 1, and the heat dissipation fin is a copper sheet or an aluminum alloy sheet.
Preferably, as shown in fig. 5, the air-cooled heat dissipating assembly includes a first air intake fan 6 and a second air intake fan 13 which are symmetrical to each other, the first air intake fan 6 and the second air intake fan 13 are used for blowing heat dissipating air flow into the heat dissipating fins, and the first air intake fan 6 and the second air intake fan 13 are used for exhausting heat transferred from the power amplifier in the metal casing 5.
Preferably, as shown in fig. 3, the bottom of the metal casing 5 is detachably connected with a package plate 7, and the package plate 7 has a fixed mounting hole.
Preferably, as shown in fig. 6, the load 14 is one or more of a resistive load, a capacitive load, or an inductive load.
The working principle of the utility model is as follows: when the power amplifier is used, the width of the inner cavity of the metal casing 5 is equal to the width of the radio frequency power amplifier module 1, the interference of the connection of the input and output ports of the radio frequency power amplifier module 1 is avoided, meanwhile, a compact table type radio frequency power amplifier with a smaller size than the existing power amplifier is formed, the convenience of power supply is improved, the application occasions of the power amplifier are expanded by being applicable to the fields of a microwave experiment platform, a near-far-field turntable of a microwave darkroom, unmanned aerial vehicle set communication, ship communication and the like, the metal casing 5 can be used as a heat dissipation structure of the power amplifier, the heat dissipation function of the metal casing 5 is enhanced, and the influence of high temperature on the internal performance of the power amplifier is reduced.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. A miniaturized compact bench-top power amplifier characterized by: the power amplifier comprises a metal shell (5) and a radio frequency power amplifier module (1) and a DC-DC voltage reduction power supply board (2) which are tightly attached to the inner cavity of the metal shell (5), wherein the width of the inner cavity of the metal shell (5) is equal to that of the radio frequency power amplifier module (1), the radio frequency power amplifier module (1) comprises a power amplification circuit (101), an input matching network (104) is connected to the upstream of the power amplification circuit (101), a radio frequency source (131) is connected to the upstream of the input matching network (104), an output matching network (103) is connected to the downstream of the power amplification circuit (101), a load (14) is connected to the downstream of the output matching network (103), a power amplifier input interface (9) and a power amplifier output interface (10) are respectively installed on two sides of the metal shell (5), a heat transfer radiating component (8) is installed at the top of the metal shell (5), and a symmetrical air cooling radiating component is installed at the top of the heat transfer radiating component (8).
2. A miniaturized compact bench-top power amplifier as in claim 1, wherein: the radio frequency power amplifier module (1) is used for amplifying radio frequency power without distortion.
3. A miniaturized compact bench-top power amplifier as in claim 1, wherein: the metal shell (5) comprises a 12mm metal button switch (3) arranged on the front surface, a power socket (4), a program-controlled connection power supply end (11) and a grounding end (12), wherein the power socket (4) is a 220V alternating current socket and is converted into a +12V or +24V direct current power supply, and the power socket (4) comprises a fuse base.
4. A miniaturized compact bench-top power amplifier as in claim 1, wherein: the heat transfer radiating component (8) is a radiating fin with broken grooves and equidistant covering the top of the metal casing (5) and is used for cooling and radiating the radio frequency power amplifier module (1), and the radiating fin is a copper sheet or an aluminum alloy sheet.
5. A miniaturized compact bench-top power amplifier as in claim 4, wherein: the air-cooled heat dissipation assembly comprises a first air inlet fan (6) and a second air inlet fan (13) which are symmetrical to each other, and the first air inlet fan (6) and the second air inlet fan (13) are used for blowing heat dissipation airflow into the top heat dissipation fins.
6. A miniaturized compact bench-top power amplifier as in claim 1, wherein: the bottom of the metal shell (5) is detachably connected with a packaging plate (7), and the packaging plate (7) is provided with a fixed mounting hole.
7. A miniaturized compact bench-top power amplifier as in claim 1, wherein: the DC-DC step-down power panel (2) comprises a power supply and control module (102).
8. A miniaturized compact bench-top power amplifier as in claim 1, wherein: the load (14) is one or more of a resistive load, a capacitive load, or an inductive load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321153760.7U CN220291990U (en) | 2023-05-12 | 2023-05-12 | Miniaturized compact desk-top power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321153760.7U CN220291990U (en) | 2023-05-12 | 2023-05-12 | Miniaturized compact desk-top power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220291990U true CN220291990U (en) | 2024-01-02 |
Family
ID=89342643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321153760.7U Active CN220291990U (en) | 2023-05-12 | 2023-05-12 | Miniaturized compact desk-top power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220291990U (en) |
-
2023
- 2023-05-12 CN CN202321153760.7U patent/CN220291990U/en active Active
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