CN219577018U - Power amplifier - Google Patents
Power amplifier Download PDFInfo
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- CN219577018U CN219577018U CN202320956358.6U CN202320956358U CN219577018U CN 219577018 U CN219577018 U CN 219577018U CN 202320956358 U CN202320956358 U CN 202320956358U CN 219577018 U CN219577018 U CN 219577018U
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- power
- power divider
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- amplifier
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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
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Abstract
The power amplifier comprises a driving circuit, a first power divider, a second power divider, a third power divider, an isolator, a final-stage amplifier, a fourth power divider and a fifth power divider, wherein the output end of the fourth power divider is connected with the output end of the fifth power divider and the input end of a sixth power divider, and the output end of the sixth power divider is connected with the input end of a low-pass filter; the output end of the low-pass filter is connected with the input end of the coupler; the first output of the coupler is the output of the power amplifier. The power amplifier can reduce the insertion loss to a great extent and greatly improve the efficiency; the power amplifier has high efficiency, low power consumption, small heating and wide power input range, so that the module has high reliability, high stability and strong adaptability.
Description
Technical Field
The present utility model relates to electronic components, and more particularly, to a power amplifier.
Background
The existing high-power amplifier has the following steps: the class A power amplifier adopts a power back-off method, namely, 10W of power is required to be output, and a 100W field effect transistor is actually required and can be realized when working in a class A state. The power amplifier has high power consumption, low efficiency and large heat generation, and further, the reliability is reduced. The number of the power modules needed to be synthesized is more, and the volume is relatively larger due to the need of larger power; the class-C power amplifier adopts a method of direct synthesis of a combiner, and not only needs each high-power tube to work in a nonlinear region to exert the maximum amplifying capability, but also realizes high-efficiency output. The power amplifier has the advantages of fast heating, poor stability, poor linearity, poor isolation of each path of synthesized power tube and low reliability.
Disclosure of Invention
The utility model aims to provide a power amplifier with high efficiency, low power consumption and small heat generation.
The power amplifier comprises a driving circuit, a first power divider, a second power divider, a third power divider, an isolator, a final-stage amplifier, a fourth power divider and a fifth power divider, wherein the output end of the driving circuit is connected with the input end of the first power divider; the output end of the low-pass filter is connected with the input end of the coupler; the first output of the coupler is the output of the power amplifier.
The power amplifier further comprises a reverse detection circuit, wherein the input end of the reverse detection circuit is connected with the second output end of the coupler, the output end of the reverse detection control circuit is connected with the input end of the high standing wave protection circuit of the control module, and the high standing wave protection circuit is connected with the Gao Zhubo alarm.
The power amplifier further comprises a seventh power divider and an automatic gain control circuit, wherein the input end of the seventh power divider is connected with the third output end of the coupler, the input end of the automatic gain control circuit is connected with the second output end of the seventh power divider, the output end of the automatic gain control circuit is connected with a front-stage amplifier, the input end of the front-stage amplifier is the input end of the power amplifier, and the output end of the front-stage amplifier is connected with the input end of the driving circuit.
The power amplifier of the utility model, wherein the power divider, the coupler and the low-pass filter are respectively a microstrip power divider, a microstrip coupler and a microstrip low-pass filter.
The power amplifier of the utility model, wherein the control module also comprises a negative control positive circuit, a temperature protection circuit, an external control circuit and a power supply processing circuit.
The power amplifier can reduce the insertion loss to a great extent and greatly improve the efficiency; the power amplifier has high efficiency, low power consumption, small heating and wide power input range, so that the module has high reliability, high stability and strong adaptability.
Drawings
Fig. 1 is a schematic diagram of a power amplifier according to the present utility model.
Detailed Description
As shown in fig. 1, the power amplifier of the utility model comprises a driving circuit, a first power divider 1, a second power divider 2, a third power divider 3, an isolator, a final-stage amplifier, a fourth power divider 4 and a fifth power divider 5, wherein the output end of the driving circuit is connected with the input end of the first power divider, the output end of the first power divider is respectively connected with the input ends of the second power divider and the third power divider which are connected in parallel, the output end of the second power divider is respectively connected with the input ends of the two final-stage amplifiers which are connected in parallel, the output end of the two final-stage amplifiers is respectively connected with the input end of the fourth power divider, the output end of the second power divider is respectively connected with the input end of the final-stage amplifier, the isolator is arranged between the output end of each final-stage amplifier and the input end of the fourth power divider is respectively connected with the output end of the fifth power divider, the output end of the fifth power divider is respectively connected with the output end of the fourth power divider, the output end of the fifth power divider is respectively connected with the output end of the fifth power divider, and the output end of the fifth power divider is respectively connected between the output end of the fourth power divider is respectively connected with the output end of the fourth power divider; the output end of the low-pass filter is connected with the input end of the coupler; the first output of the coupler is the output of the power amplifier.
The power divider, the coupler and the Low Pass Filter (LPF) are respectively a microstrip power divider, a microstrip coupler and a microstrip low pass filter.
The fourth power divider 4, the fifth power divider 5 and the sixth power divider 6 are power dividers having a combining function, which are commonly used for combining power in this system.
The power amplifier further comprises a reverse detection circuit, wherein the input end of the reverse detection circuit is connected with the second output end of the coupler, the output end of the reverse detection control circuit is connected with the input end of the high standing wave protection circuit of the control module, and the high standing wave protection circuit is connected with the Gao Zhubo alarm.
The power amplifier further comprises a seventh power divider 7 and an automatic gain control circuit (AGC), wherein the input end of the seventh power divider is connected with the third output end of the coupler, the input end of the automatic gain control circuit is connected with the second output end of the seventh power divider, the output end of the automatic gain control circuit is connected with a front-stage amplifier, the input end of the front-stage amplifier is the input end of the power amplifier, and the output end of the front-stage amplifier is connected with the input end of the driving circuit.
The power amplifier of the utility model, wherein the control module also comprises a negative control positive circuit, a temperature protection circuit, an external control circuit and a power supply processing circuit.
The power amplifier can improve the power amplification efficiency, reduce the power consumption, improve the adaptability, meet the popularization and use requirements and well meet the communication terminal requirements.
The power amplifier is a miniaturized high-efficiency high-linearity power amplifier, and can ensure high linearity and high efficiency of the power amplifier.
The power amplifier has the advantages that:
1. microstrip of the passive device, reducing insertion loss and miniaturizing the module;
2. each stage adopts microstrip connection, and insertion loss is reduced. And the power tube of each stage realizes maximum gain output through matching and debugging, and after the push gain of each stage is increased, the push output power of each stage is reduced, so that the power consumption of the amplifier of each stage is reduced. Because the integral output power is required to be larger, the final stage adopts a synthesis mode to achieve high-power output, and the amplitude phase consistency of each pipe of the final stage is optimized through debugging, so that the output power is improved, the power consumption is reduced, and the system efficiency is remarkably improved;
3. and each final-stage power tube output is added with a low-insertion-loss isolator, so that output standing waves are improved, and the requirements of communication terminals are met.
The power amplifier can reduce the insertion loss to a great extent and greatly improve the efficiency; the power amplifier has the advantages of high efficiency, low power consumption, small heating and wide power input range, so that the module has high reliability, high stability and strong adaptability.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (5)
1. The power amplifier is characterized by comprising a driving circuit, a first power divider, a second power divider, a third power divider, an isolator, a final-stage amplifier, a fourth power divider and a fifth power divider, wherein the output end of the driving circuit is connected with the input end of the first power divider; the output end of the low-pass filter is connected with the input end of the coupler; the first output of the coupler is the output of the power amplifier.
2. The power amplifier of claim 1, further comprising a reverse detection circuit, wherein an input of the reverse detection circuit is connected to the second output of the coupler, and an output of the reverse detection control circuit is connected to an input of a high standing wave protection circuit of the control module, and the high standing wave protection circuit is connected to the Gao Zhubo alarm.
3. The power amplifier of claim 2, further comprising a seventh power divider and an automatic gain control circuit, wherein an input of the seventh power divider is connected to a third output of the coupler, an input of the automatic gain control circuit is connected to a second output of the seventh power divider, an output of the automatic gain control circuit is connected to a pre-amplifier, an input of the pre-amplifier is an input of the power amplifier, and an output of the pre-amplifier is connected to an input of the driving circuit.
4. A power amplifier according to claim 3, wherein the power divider, coupler and low pass filter are respectively a microstrip power divider, a microstrip coupler and a microstrip low pass filter.
5. The power amplifier of claim 4, wherein the control module further comprises a negative control positive circuit, a temperature protection circuit, an external control circuit, a power supply processing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320956358.6U CN219577018U (en) | 2023-04-24 | 2023-04-24 | Power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320956358.6U CN219577018U (en) | 2023-04-24 | 2023-04-24 | Power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219577018U true CN219577018U (en) | 2023-08-22 |
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ID=87649277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320956358.6U Active CN219577018U (en) | 2023-04-24 | 2023-04-24 | Power amplifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN219577018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117176091A (en) * | 2023-11-02 | 2023-12-05 | 深圳市恒运昌真空技术有限公司 | Balanced power amplifier topology circuit of radio frequency power supply and control method thereof |
-
2023
- 2023-04-24 CN CN202320956358.6U patent/CN219577018U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117176091A (en) * | 2023-11-02 | 2023-12-05 | 深圳市恒运昌真空技术有限公司 | Balanced power amplifier topology circuit of radio frequency power supply and control method thereof |
| CN117176091B (en) * | 2023-11-02 | 2024-04-05 | 深圳市恒运昌真空技术股份有限公司 | Balanced power amplifier topology circuit of radio frequency power supply and control method thereof |
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