CN104868859A - Adjustable microwave power amplifier - Google Patents
Adjustable microwave power amplifier Download PDFInfo
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- CN104868859A CN104868859A CN201510247028.XA CN201510247028A CN104868859A CN 104868859 A CN104868859 A CN 104868859A CN 201510247028 A CN201510247028 A CN 201510247028A CN 104868859 A CN104868859 A CN 104868859A
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- power amplifier
- microwave power
- detector
- microwave
- amplifier tube
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Abstract
The invention provides an adjustable microwave power amplifier. The adjustable microwave power amplifier comprises a first coupler, a first wave detector, a first microwave power amplifying tube, a second microwave power amplifying tube, a circulator, a second coupler, a second wave detector, a load, a processor, a power supply biasing circuit, a single-pole double-throw controlled switch and an attenuator, wherein microwave signals pass through the attenuator, the first coupler, the first microwave power amplifying tube or the second microwave power amplifying tube and the circulator in sequence; the first coupler and the second coupler are used for separating a part of microwave signals out, and the separated microwave signals are input into the processor respectively after being subjected to wave detection of the first wave detector and the second wave detector; and the power supply biasing circuit is used for supplying power to the processor and the two microwave power amplifying tubes. Power supply control can be performed on the microwave power amplifying tubes.
Description
Technical field
The present invention relates to technical field of micro communication, particularly relate to a kind of adjustable microwave power amplifier.
Background technology
The microwave power amplifier tube that microwave power amplifier uses, due to semiconductor own characteristic, having higher quiescent current, namely also having higher power consumption when not carrying out power amplification to microwave signal.Microwave power amplifier tube only amplifies input signal, and output signal can change along with the change of input signal, and this just needs an output power.In the unmatched situation of load, the signal reflex of output is on microwave power amplifier tube, and long-time reflection can make the microwave power amplifier tube life-span decline, and even may cause the damage of microwave power amplifier.As can be seen here, accurate output control technology and good load matching technique have very important effect to microwave power amplifier.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of adjustable microwave power amplifier, can carry out power supply control to microwave power amplifier tube.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of adjustable microwave power amplifier, comprise the first coupler, first detector, first microwave power amplifier tube, second microwave power amplifier tube, circulator, second coupler, second detector, load, processor, electric power bias circuit, single-pole double throw controlled switch and attenuator, microwave signal is input to the input of described attenuator from microwave input port, the output of described attenuator connects the input of described first coupler, the output of described first coupler connects the input of described first microwave power amplifier tube and described second microwave power amplifier tube, the output of described first microwave power amplifier tube and described second microwave power amplifier tube exports the microwave signal after amplifying to described circulator, one end of described circulator is as microwave output port, the other end of described circulator connects the input of described second coupler, the output of described second coupler connects described load, the control end of described attenuator connects described processor, the coupled end of described first coupler connects the input of described first detector, the output of described first detector connects described processor, the coupled end of described second coupler connects the input of described second detector, the output of described second detector connects described processor, power supply is input to described electric power bias circuit from power interface, described electric power bias circuit is powered to described processor and is powered to described first microwave power amplifier tube or described second microwave power amplifier tube by described single-pole double throw controlled switch, the controlled end of described single-pole double throw controlled switch connects described processor, wherein, the rectified signal of described processor to described first detector and described second detector compares, when difference between described first detector and the rectified signal of described second detector is more than the first predetermined threshold value, control described attenuator and increase attenuation amplitude, when difference between described first detector and the rectified signal of described second detector is more than the second predetermined threshold value, control the one in the described single-pole double throw controlled switch described first microwave power amplifier tube of connection and described second microwave power amplifier tube, and the another one disconnected in described first microwave power amplifier tube and described second microwave power amplifier tube.
Be different from the situation of prior art; the invention has the beneficial effects as follows: by carrying out detection to the isolated microwave signal before the input of microwave power amplifier tube and after exporting; comparing the difference of two rectified signals; when difference exceedes predetermined threshold value; another microwave power amplifier tube is switched to from current microwave power amplifier tube; thus power supply control can be carried out to microwave power amplifier tube, reach the object of protection microwave power amplifier tube.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention adjustable microwave power amplifier.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, it is the structural representation of embodiment of the present invention adjustable microwave power amplifier.The adjustable microwave power amplifier of the present embodiment comprises the first coupler 1, first detector 2, first microwave power amplifier tube 3, second microwave power amplifier tube 4, circulator 5, second coupler 6, second detector 7, load 8, processor 9, electric power bias circuit 10, single-pole double throw controlled switch 11 and attenuator 12.
Microwave signal is input to the input of attenuator 12 from microwave input port, the output of attenuator 12 connects the input of the first coupler 1, the output of the first coupler 1 connects the input of the first microwave power amplifier tube 3 and the second microwave power amplifier tube 4, the output of the first microwave power amplifier tube 3 and the second microwave power amplifier tube 4 exports the microwave signal after amplifying to circulator 5, one end of circulator 5 is as microwave output port, the other end of circulator 5 connects the input of the second coupler 6, the output of the second coupler 6 connects load 8, the control end connection handling device 9 of attenuator 12, the coupled end of the first coupler 1 connects the input of first detector 2, the output connection handling device 9 of first detector 2, the coupled end of the second coupler 6 connects the input of second detector 7, the output connection handling device 9 of second detector 7, power supply is input to electric power bias circuit 10 from power interface, electric power bias circuit 10 is powered to processor 9 and is powered to the first microwave power amplifier tube 3 or the second microwave power amplifier tube 4 by single-pole double throw controlled switch 11, the controlled end connection handling device 9 of single-pole double throw controlled switch 11.
Wherein, the rectified signal of processor 9 pairs of first detectors 2 and second detector 7 compares, when difference between first detector 2 and the rectified signal of second detector 7 exceedes predetermined threshold value, control controlled switch 11 connects the one in the first microwave power amplifier tube 3 and the second microwave power amplifier tube 4, and disconnects the another one in the first microwave power amplifier tube 3 and the second microwave power amplifier tube 4.That is, if work at present is the first microwave power amplifier tube 3, be then switched to the second microwave power amplifier tube 4, if work at present is the second microwave power amplifier tube 4, be then switched to the first microwave power amplifier tube 3.
Specifically, microwave signal is input to the input of the first coupler 1 from microwave input port, first coupler 1 by microwave signal transmission to the first microwave power amplifier tube 3 or the second microwave power amplifier tube 4, part microwave signal is separated simultaneously, after coupled end exports, enter first detector 2, first detector 2 sends becoming DC control signal after the microwave signal detection of input into processor 9.First microwave power amplifier tube 3 or the second microwave power amplifier tube 4 pairs of microwave signals output to circulator 5 after amplifying, microwave signal exports from microwave output port through circulator 5, and output to the second coupler 6 simultaneously, microwave signal enters second detector 7 after the coupled end of the second coupler 6 exports, and second detector 7 sends becoming DC control signal after the microwave signal detection of input into processor 9.Processor 9 receives the rectified signal of first detector 2 and second detector 7 feeding, and the rectified signal of first detector 2 and second detector 7 is compared, when difference between rectified signal first detector 2 and second detector 7 being detected is more than the first predetermined threshold value, control end to attenuator 12 sends control signal control attenuator 12 and increases attenuation amplitude, when difference between first detector 2 and the rectified signal of second detector 7 is more than the second predetermined threshold value, controlled end to single-pole double throw controlled switch 11 sends control signal control single-pole double throw controlled switch 11 and is switched to another output from an output, the microwave power amplifier tube power down of work at present, another microwave power amplifier tube works, thus the power supply control function realized microwave power amplifier tube, reach the object of protection microwave power amplifier.Certainly, if processor 9 first detector 2 and second detector 7 detected rectified signal between difference lower than the second predetermined threshold value, then the state controlling single-pole double throw controlled switch 11 is constant.
By the way; the adjustable microwave power amplifier of the embodiment of the present invention is by carrying out detection to the isolated microwave signal before the input of microwave power amplifier tube and after exporting; comparing the difference of two rectified signals; when difference exceedes predetermined threshold value; another microwave power amplifier tube is switched to from current microwave power amplifier tube; thus power supply control can be carried out to microwave power amplifier tube, reach the object of protection microwave power amplifier tube.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. an adjustable microwave power amplifier, it is characterized in that, comprise the first coupler, first detector, first microwave power amplifier tube, second microwave power amplifier tube, circulator, second coupler, second detector, load, processor, electric power bias circuit, single-pole double throw controlled switch and attenuator, microwave signal is input to the input of described attenuator from microwave input port, the output of described attenuator connects the input of described first coupler, the output of described first coupler connects the input of described first microwave power amplifier tube and described second microwave power amplifier tube, the output of described first microwave power amplifier tube and described second microwave power amplifier tube exports the microwave signal after amplifying to described circulator, one end of described circulator is as microwave output port, the other end of described circulator connects the input of described second coupler, the output of described second coupler connects described load, the control end of described attenuator connects described processor, the coupled end of described first coupler connects the input of described first detector, the output of described first detector connects described processor, the coupled end of described second coupler connects the input of described second detector, the output of described second detector connects described processor, power supply is input to described electric power bias circuit from power interface, described electric power bias circuit is powered to described processor and is powered to described first microwave power amplifier tube or described second microwave power amplifier tube by described single-pole double throw controlled switch, the controlled end of described single-pole double throw controlled switch connects described processor,
Wherein, the rectified signal of described processor to described first detector and described second detector compares, when difference between described first detector and the rectified signal of described second detector is more than the first predetermined threshold value, control described attenuator and increase attenuation amplitude, when difference between described first detector and the rectified signal of described second detector is more than the second predetermined threshold value, control the one in the described single-pole double throw controlled switch described first microwave power amplifier tube of connection and described second microwave power amplifier tube, and the another one disconnected in described first microwave power amplifier tube and described second microwave power amplifier tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247028.XA CN104868859A (en) | 2015-05-15 | 2015-05-15 | Adjustable microwave power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247028.XA CN104868859A (en) | 2015-05-15 | 2015-05-15 | Adjustable microwave power amplifier |
Publications (1)
| Publication Number | Publication Date |
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| CN104868859A true CN104868859A (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510247028.XA Pending CN104868859A (en) | 2015-05-15 | 2015-05-15 | Adjustable microwave power amplifier |
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Cited By (3)
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| CN105939149A (en) * | 2016-04-16 | 2016-09-14 | 合肥博雷电气有限公司 | Tunable microwave power amplifier device |
| CN105939150A (en) * | 2016-04-16 | 2016-09-14 | 合肥博雷电气有限公司 | Linear microwave power amplifier |
| CN108732490A (en) * | 2018-08-31 | 2018-11-02 | 成都天箭科技股份有限公司 | The full-automatic unmanned aging test of microwave solid-state power amplifier and service life experiment system |
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|---|---|---|---|---|
| CN105939149A (en) * | 2016-04-16 | 2016-09-14 | 合肥博雷电气有限公司 | Tunable microwave power amplifier device |
| CN105939150A (en) * | 2016-04-16 | 2016-09-14 | 合肥博雷电气有限公司 | Linear microwave power amplifier |
| CN108732490A (en) * | 2018-08-31 | 2018-11-02 | 成都天箭科技股份有限公司 | The full-automatic unmanned aging test of microwave solid-state power amplifier and service life experiment system |
| CN108732490B (en) * | 2018-08-31 | 2024-02-23 | 成都天箭科技股份有限公司 | Full-automatic unmanned aging test and life test system for microwave solid-state power amplifier |
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Application publication date: 20150826 |
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| RJ01 | Rejection of invention patent application after publication |