CN104868857A - Microwave power amplifying device - Google Patents
Microwave power amplifying device Download PDFInfo
- Publication number
- CN104868857A CN104868857A CN201510246886.2A CN201510246886A CN104868857A CN 104868857 A CN104868857 A CN 104868857A CN 201510246886 A CN201510246886 A CN 201510246886A CN 104868857 A CN104868857 A CN 104868857A
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- Prior art keywords
- microwave power
- power amplifier
- amplifier tube
- detector
- microwave
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Abstract
The invention provides a microwave power amplifying device, comprising a first coupler, a first detector, a first microwave power amplifier tube, a second microwave power amplifier tube, a circulator, a second coupler, a second detector, a load, a processor, a power bias circuit, a single-pole double-throw controlled switch and a harmonic wave absorption circuit, wherein a microwave signal passes through the first coupler, the first microwave power amplifier tube or the second microwave power amplifier tube and the circulator in turn. The first coupler and the second coupler separate out partial microwave signals, and the signals are input into and detected by the first detector and the second detector and then are input into the processor. The power bias circuit is used for supplying power for the processor and the two microwave power amplifier tubes. The processor controls the single-pole double-throw controlled switch to switch to the first microwave power amplifier tube or the second microwave power amplifier tube when detecting that the difference value between the detecting signals of the two detectors is greater than a preset threshold value. The microwave power amplifying device of the invention can be used for carrying out power supply control for the microwave power amplifier tube.
Description
Technical field
The present invention relates to technical field of micro communication, particularly relate to a kind of microwave power amplifying device.
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.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of microwave power amplifying device, 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 microwave power amplifying device, 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 harmonic wave absorption circuit, microwave signal is input to the input of described first coupler from microwave input port, 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 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 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, 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 exceedes 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 disconnect the another one 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; 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 embodiment of the present invention microwave power amplifying device.
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 microwave power amplifying device.The microwave power amplifying device 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 harmonic wave absorption circuit 12.
Microwave signal is input to the input of the first coupler 1 from microwave input port, 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 by metal pad 301, 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 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.
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 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 exceedes 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 amplifying device.Certainly, if processor 9 first detector 2 and second detector 7 detected rectified signal between difference lower than predetermined threshold value, then the state controlling single-pole double throw controlled switch 11 is constant.
Be connected with the first microwave power amplifier tube 3 and the second microwave power amplifier tube 4 by pressure welding spun gold 101, and then be connected with circulator 5.Produce series resonance point by element in harmonic absorption loop 12, absorb the harmonic components produced when the first microwave power amplifier tube 3 and the second microwave power amplifier tube 4 work.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 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; 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 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. a microwave power amplifying device, 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 harmonic wave absorption circuit, microwave signal is input to the input of described first coupler from microwave input port, 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 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 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,
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 exceedes 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 disconnect the another one in described first microwave power amplifier tube and described second microwave power amplifier tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246886.2A CN104868857B (en) | 2015-05-15 | 2015-05-15 | Microwave power amplifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246886.2A CN104868857B (en) | 2015-05-15 | 2015-05-15 | Microwave power amplifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104868857A true CN104868857A (en) | 2015-08-26 |
| CN104868857B CN104868857B (en) | 2017-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510246886.2A Expired - Fee Related CN104868857B (en) | 2015-05-15 | 2015-05-15 | Microwave power amplifying device |
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| CN (1) | CN104868857B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105939150A (en) * | 2016-04-16 | 2016-09-14 | 合肥博雷电气有限公司 | Linear microwave power amplifier |
| CN105939149A (en) * | 2016-04-16 | 2016-09-14 | 合肥博雷电气有限公司 | Tunable microwave power amplifier device |
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| CN1750385A (en) * | 2004-09-15 | 2006-03-22 | 胡嘉宾 | High power TDD radio frequency power amplifier |
| CN102270967A (en) * | 2010-06-03 | 2011-12-07 | 中国科学院微电子研究所 | On-chip harmonic absorption circuit for power amplifier |
| CN102355203A (en) * | 2011-10-09 | 2012-02-15 | 上海东洲罗顿通信技术有限公司 | Intelligent output technology of microwave power amplifier |
| US20120295561A1 (en) * | 2007-05-17 | 2012-11-22 | Ying Shen | Compact wide dynamic range transmitter for point to point radio |
| CN103636121A (en) * | 2011-10-13 | 2014-03-12 | 三菱电机株式会社 | Front-end amplifier |
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2015
- 2015-05-15 CN CN201510246886.2A patent/CN104868857B/en not_active Expired - Fee Related
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| CN1750385A (en) * | 2004-09-15 | 2006-03-22 | 胡嘉宾 | High power TDD radio frequency power amplifier |
| US20120295561A1 (en) * | 2007-05-17 | 2012-11-22 | Ying Shen | Compact wide dynamic range transmitter for point to point radio |
| CN102270967A (en) * | 2010-06-03 | 2011-12-07 | 中国科学院微电子研究所 | On-chip harmonic absorption circuit for power amplifier |
| CN102355203A (en) * | 2011-10-09 | 2012-02-15 | 上海东洲罗顿通信技术有限公司 | Intelligent output technology of microwave power amplifier |
| CN103636121A (en) * | 2011-10-13 | 2014-03-12 | 三菱电机株式会社 | Front-end amplifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105939150A (en) * | 2016-04-16 | 2016-09-14 | 合肥博雷电气有限公司 | Linear microwave power amplifier |
| CN105939149A (en) * | 2016-04-16 | 2016-09-14 | 合肥博雷电气有限公司 | Tunable microwave power amplifier device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104868857B (en) | 2017-12-29 |
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Granted publication date: 20171229 Termination date: 20180515 |