CN204578479U - The microwave power amplifying device of adjustable attenuation amplitude - Google Patents
The microwave power amplifying device of adjustable attenuation amplitude Download PDFInfo
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- CN204578479U CN204578479U CN201520313083.XU CN201520313083U CN204578479U CN 204578479 U CN204578479 U CN 204578479U CN 201520313083 U CN201520313083 U CN 201520313083U CN 204578479 U CN204578479 U CN 204578479U
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Abstract
The utility model provides a kind of microwave power amplifying device of adjustable attenuation amplitude.It comprises the first coupler, first detector, microwave power amplifier tube, circulator, second coupler, second detector, load, processor, electric power bias circuit, controlled switch, attenuator and harmonic wave absorption circuit, microwave signal is successively through attenuator, first coupler, microwave power amplifier tube, circulator is to microwave output port and the second coupler, part microwave signal is separated and is entered first detector and second detector by the first coupler and the second coupler, two wave detectors are by the input processor respectively of the signal after detection, electric power bias circuit is powered to processor and by controlled switch to microwave power amplifier tube, the controlled end connection handling device of controlled switch.The utility model can carry out power supply control to microwave power amplifier tube.
Description
Technical field
The utility model relates to technical field of micro communication, particularly relates to a kind of microwave power amplifying device of adjustable attenuation amplitude.
Background technology
The microwave power amplifier tube that microwave power amplifying device 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 amplifying device.As can be seen here, accurate output control technology and good load matching technique have very important effect to microwave power amplifying device.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of microwave power amplifying device of adjustable attenuation amplitude, 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 utility model adopts is: the microwave power amplifying device providing a kind of adjustable attenuation amplitude, comprise the first coupler, first detector, microwave power amplifier tube, circulator, second coupler, second detector, load, processor, electric power bias circuit, controlled switch, attenuator and harmonic wave absorption circuit, 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 microwave power amplifier tube, the output of described microwave power amplifier tube exports the microwave signal after amplifying to described circulator by metal pad, 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 by described controlled switch to described microwave power amplifier tube, the controlled end of described controlled switch connects described processor, described harmonic absorption loop comprises pressure welding spun gold, bonding pads, MIM capacitor and ground pad, and described ground pad, described MIM capacitor, described bonding pads, described pressure welding spun gold and described metal pad are connected successively, 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 described controlled switch to disconnect, the first predetermined threshold value is greater than described second predetermined threshold value.
Be different from the situation of prior art; the beneficial effects of the utility model are: 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 is more than the first predetermined threshold value; control attenuator and increase attenuation amplitude; when difference is more than the second predetermined threshold value; disconnect the power supply of microwave power amplifier tube; and harmonic absorption loop is set at microwave power amplifier tube output; 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 the microwave power amplifying device of the adjustable attenuation amplitude of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
See Fig. 1, it is the structural representation of the microwave power amplifying device of the adjustable attenuation amplitude of the utility model embodiment.The microwave power amplifying device of the adjustable attenuation amplitude of the present embodiment comprises the first coupler 1, first detector 2, microwave power amplifier tube 3, circulator 4, second coupler 5, second detector 6, load 7, processor 8, electric power bias circuit 9, controlled switch 10, attenuator 11 and harmonic wave absorption circuit 12.
Microwave signal is input to the input of attenuator 11 from microwave input port, the output of attenuator 11 connects, the input of the first coupler 1, the output of the first coupler 1 connects the input of microwave power amplifier tube 3, the output of microwave power amplifier tube 3 exports the microwave signal after amplifying to circulator 4 by metal pad 301, one end of circulator 4 is as microwave output port, the other end of circulator 4 connects the input of the second coupler 5, the output of the second coupler 5 connects load 7, the control end connection handling device 8 of attenuator 11, the coupled end of the first coupler 1 connects the input of first detector 2, the output connection handling device 8 of first detector 2, the coupled end of the second coupler 5 connects the input of second detector 6, the output connection handling device 8 of second detector 6, power supply is input to electric power bias circuit 9 from power interface, electric power bias circuit 9 is powered to processor 8 and by controlled switch 10 to microwave power amplifier tube 3, the controlled end connection handling device 8 of controlled switch 10.
Harmonic absorption loop 12 comprises pressure welding spun gold 101, bonding pads 102, MIM capacitor 103 and ground pad 104.Ground pad 104, MIM capacitor 103, bonding pads 102, pressure welding spun gold 101 and metal pad 301 are connected successively.
Wherein, the rectified signal of processor 8 pairs of first detectors 2 and second detector 6 compares, when difference between first detector 2 and the rectified signal of second detector 6 is more than the first predetermined threshold value, control attenuator 11 and increase attenuation amplitude, when difference between first detector 2 and the rectified signal of second detector 6 is more than the second predetermined threshold value, controls controlled switch 10 and disconnect.Wherein, the first predetermined threshold value is greater than the second predetermined threshold value.
Specifically, microwave signal is input to attenuator 11 from microwave input port, the input of the first coupler 1 is input to after attenuator 11 is decayed, first coupler 1 by microwave signal transmission to microwave power amplifier tube 3, 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 8.Microwave power amplifier tube 3 pairs of microwave signals output to circulator 4 after amplifying, microwave signal exports from microwave output port through circulator 4, and output to the second coupler 5 simultaneously, microwave signal enters second detector 6 after the coupled end of the second coupler 5 exports, and second detector 6 sends becoming DC control signal after the microwave signal detection of input into processor 8.Processor 8 receives the rectified signal of first detector 2 and second detector 6 feeding, and the rectified signal of first detector 2 and second detector 6 is compared, when difference between rectified signal first detector 2 and second detector 6 being detected is more than the first predetermined threshold value, control end to attenuator 11 sends control signal control attenuator 11 and increases attenuation amplitude, to reduce difference.If after control attenuator 11 increases attenuation amplitude; difference is still greater than the second predetermined threshold value; controlled end to controlled switch 10 sends control signal control controlled switch 10 and disconnects; microwave power amplifier tube 3 power down; thus the power supply control function realized microwave power amplifier tube, reach the object of protection microwave power amplifying device.Certainly, if processor 8 first detector 2 and second detector 6 detected rectified signal between difference lower than the second predetermined threshold value, then control controlled switch 10 and close.
Be connected with microwave power amplifier tube 3 by pressure welding spun gold 101, and then be connected with circulator 4.Produce series resonance point by the element in harmonic absorption loop 12, absorb the harmonic components produced when microwave power amplifier tube 3 works.Simultaneously, due to pressure welding spun gold 101 adjustable in length, the flexible of the inductance value that can be brought by the length variations of pressure welding spun gold 101 changes the resonance point needed for producing, thus improves the flexibility ratio of harmonic absorption, the harmonic components produced in effective absorption working band, improves the linearity of circuit.
By the way, the microwave power amplifying device of the adjustable attenuation amplitude of the utility model embodiment 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 is more than the first predetermined threshold value, control attenuator and increase attenuation amplitude, when difference is more than the second predetermined threshold value, disconnect the power supply of microwave power amplifier tube, and harmonic absorption loop is set at microwave power amplifier tube output, 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 embodiment of the present utility model; not thereby protection range of the present utility model is limited; every utilize the utility model specification and accompanying drawing to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in protection range of the present utility model.
Claims (1)
1. the microwave power amplifying device of an adjustable attenuation amplitude, it is characterized in that, comprise the first coupler, first detector, microwave power amplifier tube, circulator, second coupler, second detector, load, processor, electric power bias circuit, controlled switch, attenuator and harmonic wave absorption circuit, 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 microwave power amplifier tube, the output of described microwave power amplifier tube exports the microwave signal after amplifying to described circulator by metal pad, 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 by described controlled switch to described microwave power amplifier tube, the controlled end of described controlled switch connects described processor,
Described harmonic absorption loop comprises pressure welding spun gold, bonding pads, MIM capacitor and ground pad, and described ground pad, described MIM capacitor, described bonding pads, described pressure welding spun gold and described metal pad are connected successively;
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 described controlled switch to disconnect, the first predetermined threshold value is greater than described second predetermined threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313083.XU CN204578479U (en) | 2015-05-15 | 2015-05-15 | The microwave power amplifying device of adjustable attenuation amplitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313083.XU CN204578479U (en) | 2015-05-15 | 2015-05-15 | The microwave power amplifying device of adjustable attenuation amplitude |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204578479U true CN204578479U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520313083.XU Expired - Fee Related CN204578479U (en) | 2015-05-15 | 2015-05-15 | The microwave power amplifying device of adjustable attenuation amplitude |
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| Country | Link |
|---|---|
| CN (1) | CN204578479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868858A (en) * | 2015-05-15 | 2015-08-26 | 四川龙瑞微电子有限公司 | Microwave power amplification device with adjustable attenuation amplitude |
| CN112039519A (en) * | 2020-08-12 | 2020-12-04 | 中国电子科技集团公司第四十一研究所 | Large-dynamic-range high-precision power control method for ultra-wideband millimeter wave signals |
-
2015
- 2015-05-15 CN CN201520313083.XU patent/CN204578479U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868858A (en) * | 2015-05-15 | 2015-08-26 | 四川龙瑞微电子有限公司 | Microwave power amplification device with adjustable attenuation amplitude |
| CN112039519A (en) * | 2020-08-12 | 2020-12-04 | 中国电子科技集团公司第四十一研究所 | Large-dynamic-range high-precision power control method for ultra-wideband millimeter wave signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20180515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |