CN211046878U - High-frequency power amplification extension for microwave power capacity tester - Google Patents
High-frequency power amplification extension for microwave power capacity tester Download PDFInfo
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- CN211046878U CN211046878U CN201922337014.3U CN201922337014U CN211046878U CN 211046878 U CN211046878 U CN 211046878U CN 201922337014 U CN201922337014 U CN 201922337014U CN 211046878 U CN211046878 U CN 211046878U
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Abstract
The utility model discloses a high frequency power amplification extension for microwave power capacity tester, include: the high-frequency power amplifier circuit comprises a first power amplifier circuit, a second power amplifier circuit and a third power amplifier circuit; the output ends of the first power amplifier circuit, the second power amplifier circuit and the third power amplifier circuit are connected with the bidirectional coupling modules, and the output ends of the bidirectional coupling modules are connected with the radio frequency output port; the bidirectional coupling module also outputs positive and negative power detection signals, and the positive and negative power detection circuits respectively comprise attenuators; the control unit is connected with the high-frequency power amplifier circuit, the power supply unit and the time sequence power supply unit; the power supply unit supplies power to the high-frequency power amplification extension set; and the time sequence power supply unit is connected with the first power amplifier circuit, the second power amplifier circuit and the third power amplifier circuit.
Description
Technical Field
The utility model relates to a microwave detection research technique, especially a high frequency power amplification extension for microwave power capacity tester.
Background
The mobile communication system carries more and more data, so the power requirement on the device is higher and higher, especially with the development of the 4G technology, when the device generates flashover, device burnout and device index deterioration due to insufficient power capacity, the reliability and safety of the mobile communication system are all reduced, and devices such as a microwave power capacity tester appear on the basis.
The microwave power capacity tester is an indispensable instrument in microwave communication research, and can help researchers to research generation, amplitude control, frequency hopping, mode control and the like of high-power microwave signals; the microwave power capacity tester consists of a plurality of hardware devices, wherein the indispensable devices comprise a power amplification extension, and the power amplification extension is generally divided into a low-frequency-band power amplification extension and a high-frequency-band power amplification extension in a test system; at present, the power capacity test equipment is not mature, and the stability and the accuracy of the radio frequency signal output have a larger improvement space.
The utility model discloses expect to solve the problem of stability and the accuracy of high frequency channel power amplification extension radio frequency output signal in the power capacity test equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a high frequency power amplification extension for microwave power capacity tester, can effectively improve high frequency channel power amplification extension output signal's stability and accuracy.
The purpose of the utility model is realized through the following technical scheme:
a high frequency power amplifier extension for microwave power capacity tester includes: the high-frequency power amplifier circuit comprises a first power amplifier circuit, a second power amplifier circuit and a third power amplifier circuit; and
the output ends of the first power amplifier circuit, the second power amplifier circuit and the third power amplifier circuit are all connected with the bidirectional coupling modules, and the output ends of the bidirectional coupling modules are connected with the radio frequency output port; the bidirectional coupling module also outputs positive and negative power detection signals, and the positive and negative power detection signals are output after passing through the attenuator; and
the control unit is connected with the high-frequency power amplifier circuit, the power supply unit and the time sequence power supply unit; the power supply unit supplies power to the high-frequency power amplification extension set; and the time sequence power supply unit is connected with the first power amplifier circuit, the second power amplifier circuit and the third power amplifier circuit.
Furthermore, the first power amplifier circuit comprises a first driving power amplifier module and a first final power amplifier module which are connected in sequence;
the first driving power amplifier module comprises a front-stage power amplifier and a rear-stage power amplifier which are sequentially connected, and the front-stage power amplifier receives radio frequency signal input;
the first final-stage power amplifier module comprises a first power divider, a first final-stage power amplifier circuit and a first synthesizer which are connected in sequence; the first final-stage power amplifier circuit comprises 4 paths; the first power divider is connected with the rear-stage power amplifier, and the first synthesizer outputs a radio-frequency signal to the bidirectional coupling module connected with the first power amplifier circuit.
Further, the first final power amplifier circuit comprises a first quadrature bridge, a first power amplifier device and a second quadrature bridge which are connected in sequence, and the first power amplifier device comprises 2 paths; the first quadrature bridge is connected to the first power divider, and the second quadrature bridge is connected to the first combiner.
Furthermore, the second power amplifier circuit comprises a second driving power amplifier module, a third isolator and a second final power amplifier module which are connected in sequence;
the second final-stage power amplifier module comprises a second power divider, a second final-stage power amplifier circuit and a second synthesizer which are connected in sequence; the second final-stage power amplifier circuit comprises 6 paths; the second power divider is connected with the third isolator, and the second synthesizer outputs a radio frequency signal to the bidirectional coupling module connected with the second power amplifier circuit.
Furthermore, the second driving power amplifier module comprises a second power amplifier device, a first isolator, a third power amplifier device, a second isolator and a fourth power amplifier device which are connected in sequence, the second power amplifier device receives the input of the radio frequency signal, and the fourth power amplifier device is connected with the third isolator.
Further, the second final-stage power amplifier circuit comprises a fifth power amplifier device, and the fifth power amplifier device comprises 2 paths.
Furthermore, the third power amplifier circuit comprises a third driving power amplifier module, a fourth isolator and a third final power amplifier module which are connected in sequence;
the third driving power amplifier module comprises a sixth power amplifier device;
the third final-stage power amplification module comprises a third power divider, a third final-stage power amplification circuit and a third synthesizer which are connected in sequence; the third final power amplifier circuit comprises 2 paths; the third power divider is connected with the fourth isolator, and the third synthesizer outputs a radio frequency signal to the bidirectional coupling module connected with the third power amplifier circuit.
Further, the third final-stage power amplifier circuit includes a seventh power amplifier device, and the seventh power amplifier device includes 4 paths.
The utility model has the advantages of it is following:
1. the high-frequency power amplification extension realizes accurate and stable power amplification of signals in different frequency bands through a plurality of power amplification circuits, and improves the stability and the accuracy of output signals of the high-frequency power amplification extension;
2. the high-frequency power amplification circuit in the high-frequency power amplification extension has good protection measures, and the power device is prevented from being damaged due to high current impact when no grid electrode exists through the time sequence power supply unit.
Drawings
Fig. 1 is a schematic diagram of a circuit structure of the high-frequency power amplification extension set of the present invention;
fig. 2 is a schematic diagram of the power supply unit of the high-frequency power amplification extension timing sequence of the present invention;
fig. 3 is a circuit diagram of the first power amplifier circuit of the high-frequency power amplifier extension set of the present invention;
fig. 4 is a circuit diagram of the first final stage power amplifier circuit of the high-frequency power amplifier extension set of the present invention;
fig. 5 is a circuit diagram of a second power amplifier circuit of the high-frequency power amplifier extension set of the present invention;
fig. 6 is a circuit diagram of the second driving power amplifier module of the high-frequency power amplifier extension set of the present invention;
fig. 7 is a circuit diagram of the second final stage power amplifier circuit of the high-frequency power amplifier extension set of the present invention;
fig. 8 is a circuit diagram of a third power amplifier circuit of the high-frequency power amplifier extension set of the present invention;
fig. 9 is a circuit diagram of another third power amplifier circuit of the high-frequency power amplifier extension set of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following description will clearly describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a high frequency power amplification extension for microwave power capacity tester, as shown in fig. 1, includes high frequency power amplifier circuit, high frequency power amplifier circuit includes first power amplifier circuit, second power amplifier circuit and third power amplifier circuit; the high-frequency power amplifier circuit is mainly used for amplifying the power of a radio-frequency signal in a frequency range set by a user, and the set frequency range is divided into a first frequency band, a second frequency band and a third frequency band; in order to make the amplification of the signal more stable and accurate, the high-frequency power amplifier circuit is refined to comprise a first power amplifier circuit, a second power amplifier circuit and a third power amplifier circuit, wherein the first power amplifier circuit is mainly responsible for amplifying the radio-frequency signal of the first frequency band, the second power amplifier circuit is responsible for amplifying the radio-frequency signal of the second frequency band, and the third power amplifier circuit is responsible for amplifying the radio-frequency signal of the third frequency band; the refined high-frequency power amplifier circuit is more beneficial to the research on microwave signals.
The power amplifier further comprises a plurality of bidirectional coupling modules, the output ends of the first power amplifier circuit, the second power amplifier circuit and the third power amplifier circuit are connected with the bidirectional coupling modules, the bidirectional coupling modules can provide standing wave protection for each power amplifier circuit, and the output ends of the bidirectional coupling modules are connected with the radio frequency output port; the bidirectional coupling module also outputs positive and negative power detection signals, and the positive and negative power detection signals are output after passing through the attenuator; because the amplifying power of the power amplifying circuit is larger, a fixed power attenuator is added for protecting power detection devices such as a power meter and the like.
In an embodiment of the present invention, the rf output port connected to the bidirectional coupling module connected to the third power amplifier circuit includes an rf output waveguide.
The control unit is connected with the high-frequency power amplifier circuit, the power supply unit and the time sequence power supply unit, and the control unit adopts a singlechip to realize control; the power supply unit supplies power to the high-frequency power amplification extension set; the time sequence power supply unit is connected with the first power amplifier circuit, the second power amplifier circuit and the third power amplifier circuit, as shown in fig. 2, the time sequence power supply unit is used for ensuring the normal time sequence of power supply of the power amplifier device, so that the drain voltage is loaded on the device after being electrified on the grid electrode pressing plate, and the damage of the power amplifier device due to large current impact when the grid electrode does not exist is avoided.
The utility model discloses an embodiment, including a chronogenesis power supply unit, it realizes the power supply protection to three routes power amplifier circuit through multiplexing mode.
In another embodiment of the present invention, the power amplifier comprises a plurality of time-sequence power supply units, and each power amplifier circuit is protected by a separate time-sequence power supply unit.
As shown in fig. 3, the first power amplifier circuit includes a first driving power amplifier module and a first final power amplifier module that are connected in sequence; the first driving power amplifier module comprises a front-stage power amplifier and a rear-stage power amplifier which are sequentially connected, and the front-stage power amplifier receives radio frequency signal input; the first final-stage power amplifier module comprises a first power divider, a first final-stage power amplifier circuit and a first synthesizer which are sequentially connected, the first final-stage power amplifier circuit comprises 4 paths, the first power divider is connected with the rear-stage power amplifier to divide radio-frequency signals into 4 paths, and the first synthesizer synthesizes the 4 paths of power-amplified radio-frequency signals into 1 path and outputs the 1 path of radio-frequency signals to the bidirectional coupling module.
The first driving power amplifier module is composed of two stages, the front stage power amplifier is a common amplifier, and the rear stage power amplifier is a power amplifier tube with ceramic package.
As shown in fig. 4, the first final power amplifier circuit includes a first quadrature bridge, a first power amplifier device, and a second quadrature bridge, which are connected in sequence, where the first power amplifier device includes two paths; the first quadrature bridge is connected with the first power divider, and the second quadrature bridge is connected with the first synthesizer; wherein the quadrature bridge comprises a surface-mounted quadrature bridge.
As shown in fig. 5, the second power amplifier circuit includes a second driving power amplifier module, a third isolator, and a second final power amplifier module, which are connected in sequence; the second final-stage power amplifier module comprises a second power divider, a second final-stage power amplifier circuit and a second synthesizer which are connected in sequence; the second final-stage power amplifier circuit comprises 6 paths; the second power divider is connected with the third isolator, and the second synthesizer outputs a radio frequency signal to the bidirectional coupling module connected with the second power amplifier circuit.
After the radio frequency signal is amplified through the second driving power amplifier module, the radio frequency signal is divided into 6 same paths by the second power divider and correspondingly input into 6 paths of second final-stage power amplifier circuits for amplification, and the radio frequency signal after 6 paths of amplification is synthesized into a large signal through the second synthesizer, so that the amplification of the signal is realized.
As shown in fig. 6, the second driving power amplifier module includes a second power amplifier device, a first isolator, a third power amplifier device, a second isolator and a fourth power amplifier device, which are connected in sequence, where the second power amplifier device receives a radio frequency signal input, and the fourth power amplifier device is connected to the third isolator; wherein, the first isolator and the second isolator adopt a microstrip isolator.
As shown in fig. 7, the second final stage power amplifier circuit includes a fifth power amplifier device, and the fifth power amplifier device includes 2 paths.
As shown in fig. 8, the third power amplifier circuit includes a third driving power amplifier module, a fourth isolator and a third final power amplifier module, which are connected in sequence; the third final-stage power amplification module comprises a third power divider, a third final-stage power amplification circuit and a third synthesizer which are connected in sequence; the third final power amplifier circuit comprises 2 paths; the third power divider is connected with the fourth isolator, and the third synthesizer outputs a radio frequency signal to the bidirectional coupling module connected with the third power amplifier circuit.
As shown in fig. 9, the third driving power amplifier module includes a sixth power amplifier device; the third final power amplifier circuit comprises a seventh power amplifier device, and the seventh power amplifier device comprises 4 paths.
Claims (8)
1. A high frequency power amplifier extension for microwave power capacity tester, its characterized in that includes: the high-frequency power amplifier circuit comprises a first power amplifier circuit, a second power amplifier circuit and a third power amplifier circuit; and
the output ends of the first power amplifier circuit, the second power amplifier circuit and the third power amplifier circuit are all connected with the bidirectional coupling modules, and the output ends of the bidirectional coupling modules are connected with the radio frequency output port; the bidirectional coupling module also outputs positive and negative power detection signals, and the positive and negative power detection signals are output after passing through the attenuator; and
the control unit is connected with the high-frequency power amplifier circuit, the power supply unit and the time sequence power supply unit; the power supply unit supplies power to the high-frequency power amplification extension set; and the time sequence power supply unit is connected with the first power amplifier circuit, the second power amplifier circuit and the third power amplifier circuit.
2. The high-frequency power amplifier extension of claim 1, wherein the first power amplifier circuit comprises a first driving power amplifier module and a first final power amplifier module which are connected in sequence;
the first driving power amplifier module comprises a front-stage power amplifier and a rear-stage power amplifier which are sequentially connected, and the front-stage power amplifier receives radio frequency signal input;
the first final-stage power amplifier module comprises a first power divider, a first final-stage power amplifier circuit and a first synthesizer which are connected in sequence; the first final-stage power amplifier circuit comprises 4 paths; the first power divider is connected with the rear-stage power amplifier, and the first synthesizer outputs a radio-frequency signal to the bidirectional coupling module connected with the first power amplifier circuit.
3. The high-frequency power amplifier extension of claim 2, wherein the first final power amplifier circuit comprises a first quadrature bridge, a first power amplifier device and a second quadrature bridge, which are connected in sequence, and the first power amplifier device comprises 2 paths; the first quadrature bridge is connected to the first power divider, and the second quadrature bridge is connected to the first combiner.
4. The high-frequency power amplifier extension of claim 1, wherein the second power amplifier circuit comprises a second driving power amplifier module, a third isolator and a second final power amplifier module which are connected in sequence;
the second final-stage power amplifier module comprises a second power divider, a second final-stage power amplifier circuit and a second synthesizer which are connected in sequence; the second final-stage power amplifier circuit comprises 6 paths; the second power divider is connected with the third isolator, and the second synthesizer outputs a radio frequency signal to the bidirectional coupling module connected with the second power amplifier circuit.
5. The high-frequency power amplifier extension of claim 4, wherein the second driver power amplifier module comprises a second power amplifier device, a first isolator, a third power amplifier device, a second isolator and a fourth power amplifier device, which are connected in sequence, the second power amplifier device receives the radio frequency signal input, and the fourth power amplifier device is connected with the third isolator.
6. The high-frequency power amplifier extension of claim 4, wherein the second final power amplifier circuit comprises a fifth power amplifier device, and the fifth power amplifier device comprises 2 paths.
7. The high-frequency power amplifier extension of claim 1, wherein the third power amplifier circuit comprises a third driving power amplifier module, a fourth isolator and a third final power amplifier module which are connected in sequence;
the third driving power amplifier module comprises a sixth power amplifier device;
the third final-stage power amplification module comprises a third power divider, a third final-stage power amplification circuit and a third synthesizer which are connected in sequence; the third final power amplifier circuit comprises 2 paths; the third power divider is connected with the fourth isolator, and the third synthesizer outputs a radio frequency signal to the bidirectional coupling module connected with the third power amplifier circuit.
8. The high-frequency power amplifier extension of claim 7, wherein the third final power amplifier circuit comprises a seventh power amplifier device, and the seventh power amplifier device comprises 4 paths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922337014.3U CN211046878U (en) | 2019-12-23 | 2019-12-23 | High-frequency power amplification extension for microwave power capacity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922337014.3U CN211046878U (en) | 2019-12-23 | 2019-12-23 | High-frequency power amplification extension for microwave power capacity tester |
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| Publication Number | Publication Date |
|---|---|
| CN211046878U true CN211046878U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922337014.3U Active CN211046878U (en) | 2019-12-23 | 2019-12-23 | High-frequency power amplification extension for microwave power capacity tester |
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| Country | Link |
|---|---|
| CN (1) | CN211046878U (en) |
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- 2019-12-23 CN CN201922337014.3U patent/CN211046878U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High frequency power amplifier extension for microwave power capacity tester Effective date of registration: 20230613 Granted publication date: 20200717 Pledgee: Wuhou Sub-branch of Bank of Chengdu Co.,Ltd. Pledgor: CHENGDU PHASE LOCK ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2023510000148 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200717 Pledgee: Wuhou Sub-branch of Bank of Chengdu Co.,Ltd. Pledgor: CHENGDU PHASE LOCK ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2023510000148 |