CN207543074U - A kind of Ku wave bands amplifying circuit - Google Patents
A kind of Ku wave bands amplifying circuit Download PDFInfo
- Publication number
- CN207543074U CN207543074U CN201721265969.7U CN201721265969U CN207543074U CN 207543074 U CN207543074 U CN 207543074U CN 201721265969 U CN201721265969 U CN 201721265969U CN 207543074 U CN207543074 U CN 207543074U
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- CN
- China
- Prior art keywords
- numerical
- power amplifier
- amplifying circuit
- control attenuator
- amplifier
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of Ku wave bands amplifying circuits, and including final power amplifier, numerical-control attenuator, the numerical-control attenuator is connect with final power amplifier, and input signal exports after numerical-control attenuator, final power amplifier successively.The beneficial effects of the utility model are：The circuit small-signal gain height, output power, circuit stability and output power are controllable so that the performance of circuit is further improved.
Description
Technical field
The utility model is related to Ku wave band amplifying circuits, more particularly to a kind of adjustable controllable amplification electricity of Ku band powers
Road.
Background technology
With the fast development of the Modern Satellite communication technology, Ku wave band electromagnetic environments become increasingly complex, to the precision of power
It is it is required that higher and higher.In modern communications, electromagnetic interference increasingly become one it is important the problem of, can by the output for controlling power
In the case where ensureing communication quality, interfering with each other between reduction electromagnetism.In modern communications, the size of power can control logical
The transmission range of letter, we can reach communication by controlling power to the greatest extent in the case where ensureing communication quality
The demand of adjusting, therefore controllable high-precision numerical control adjustable amplifying circuit improves communication quality extremely for reducing electromagnetic interference
It closes important.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of novel Ku wave bands amplifying circuit, should
Circuit structure is simple, has that power is controllable, power rate control accuracy is high, available for improving communication quality.
To achieve these goals, the technical solution adopted in the utility model is：A kind of Ku wave bands amplifying circuit, including end
Stage power amplifier, numerical-control attenuator, the numerical-control attenuator are connect with final power amplifier, and input signal is successively through number
It is exported after control attenuator, final power amplifier.
The numerical-control attenuator includes signal input part, signal output end, five adjustable attenuation input terminals.
First order amplifier is concatenated between the numerical-control attenuator and final power amplifier.
The amplifying circuit further includes π type attenuators, and the π type attenuators are serially connected in numerical-control attenuator and the first order
Between amplifier.
The amplifying circuit further includes prime isolator, rear class isolator, and input signal is sent into after prime isolator
To the input terminal of numerical-control attenuator；Final power amplifier is sent to after the nearly rear class isolator of output signal of first order amplifier
Input terminal.
The first order amplifier and the material of final power amplifier are GaAs.
The utility model has the advantage of：1st, a kind of novel Ku wave band amplifying circuits of design, simple in structure, realization side
Just；2nd, differential declines amount is adjusted by numerical-control attenuator, attenuation range is adjustable, attenuation accuracy is high, stability is good, application range
It is wider；3rd, the circuit power control accuracy is high, it is good to increase height, stability；4th, it is set respectively in the input and output side of amplifying circuit
Isolator is put, for protecting prime equipment；5th, first order amplifier and final power amplifier use collection of the material for GaAs
Into chip, using it the Ku waveband high-gain performances, output power the characteristics of, the high of this circuit can be well realized and increases
Benefit, high power, so as to fulfill the index of Gao Sanjie.
Description of the drawings
Label in each width attached drawing is expressed to the utility model specification below content and figure is briefly described：
Fig. 1 is the utility model Ku wave band amplification circuit structure block diagrams；
Fig. 2 is the utility model Ku wave band amplifying circuit schematic diagrams.
Label in above-mentioned figure is：1st, prime isolator；2nd, numerical-control attenuator；3rd, π types attenuator；4th, the first order is amplified
Device；5th, rear class isolator；6th, final power amplifier.
Specific embodiment
Below against attached drawing, by the description to optimum embodiment, specific embodiment of the present utility model is made into one
Step detailed description.
As shown in Figure 1, a kind of Ku wave bands amplifying circuit, final power amplifier, numerical-control attenuator, numerical-control attenuator and end
Stage power amplifier connects, and input signal exports after numerical-control attenuator, final power amplifier successively.Numerical-control attenuator includes
Signal input part, signal output end, five adjustable attenuation input terminals.Numerical-control attenuator includes signal input part, signal output end
For outputting and inputting for signal, five adjustable attenuation input terminals are five input terminals, for numerical-control attenuator to be controlled to be operated in
Different attenuation ranges.Attenuation, and then the gain of control circuit are controlled by the adjustable attenuation end of numerical-control attenuator, increased
Add the working range of final power amplifier, reach the adjusting of output power.
First order amplifier is concatenated between numerical-control attenuator and final power amplifier.It is put in numerical-control attenuator and the first order
π type attenuators are concatenated between big device.Input signal is sent to the input terminal of numerical-control attenuator after prime isolator；The first order is put
The input terminal of final power amplifier is sent to after the nearly rear class isolator of output signal of big device.First order amplifier is used as electricity
Road provides enough gains and provides driving power for final stage, and final power amplification is main to provide gain and output power.It is putting
The input and output side of big circuit sets isolator respectively, for protecting prime equipment.The first order and second level amplifier circuit
Signal gain can be improved using its high-gain performance, solves increasing caused by the circuit formed merely with first stage amplifier characteristic
The problem of benefit is low.
As shown in Fig. 2, in a preferred embodiment, prime isolator, numerical-control attenuator, π types attenuator, first order amplification
Device, rear class isolator, final power amplifier are sequentially connected in series to form Ku wave band amplifying circuits.Signal declines through numerical-control attenuator control
Subtract, so as to achieve the purpose that control gain, and then control the input power of final stage power amplifier so as to reach the work of control output power
With.
There are numerical-control attenuator 5 control bits to control 1dB, 2dB, 4dB, 8dB, 16dB respectively, each corresponds to one and declines
Down control position pin controls attenuation by increasing level to everybody, is controlled by outside to Transistor-Transistor Logic level, combination declines
Range is reduced up to 31dB, gain is controlled by controlling attenuation, considerably increases the working range of power amplifier.When
So, according to different demands, using different numerical-control attenuators, its position of decaying is different with the attenuation range that combination obtains.
First order amplifier is the amplification for realizing small-signal, so as to reach the input power needed for final power amplifier,
The prime isolator of input terminal be in order to prevent the train of signal to module of first order amplifier when first order amplifier mismatch before
Grade equipment has the function that protect prime equipment, and because first order amplifier is interior matched device, adding in isolator can improve
Input matching.
Numerical-control attenuator is located in entire circuit before first order amplifier and final power amplifier, is primarily due to this
Module gain is higher, and attenuator is added in before dual-stage amplifier can substantially improve the input matching of prime, prevent self-excitation phenomena
Generation.Final stage power amplifier is located at the output port of entire amplifying circuit primarily to reducing differential loss as far as possible, so as to increase
Output power.π types attenuator mainly prevents first order amplifier output power excessive, while match first order amplifier.When
When the small-signal gain of circuit entirety is inadequate, small-signal gain can be improved by removing π types attenuator.In final stage power amplifier and
Between first stage amplifier plus rear class isolator is to improve the input of final stage power amplifier matching, and preventing the variation of final stage power amplifier influences
The amplification of prime and the attenuation of attenuator.First order amplifier gain is higher, and enough driving powers, but module are provided for final stage
Gain is higher, the generation of self-excitation phenomena easily occurs, and between first order amplifier and final power amplifier plus isolator is main
It is to reduce self-excitation phenomena.
Numerical-control attenuator used in this circuit is integrated in inside a chip, and appearance and size is small, is easily assembled, attenuation essence
Degree is high, and stability is good；The first order and second level amplifier are formed by being integrated in gallium arsenide chips, using it in Ku wave bands height
The high-gain of this circuit, high power, so as to fulfill Gao Sanjie can be well realized in the characteristics of gain performance, output power
Index.The circuit small-signal gain is high, output power, and the effect that output power is controllable.So that the performance of circuit obtains
To further improving.
Obvious the utility model specific implementation is not subject to the restrictions described above, as long as employing the methodology of the present invention
The improvement of the various unsubstantialities carried out with technical solution, within protection scope of the present invention.
Claims (6)
1. a kind of Ku wave bands amplifying circuit, including final power amplifier (6), it is characterised in that：Further include numerical-control attenuator
(2), the numerical-control attenuator (2) is connect with final power amplifier (6), and input signal is successively through numerical-control attenuator (2), end
Stage power amplifier (6) exports afterwards.
2. a kind of Ku wave bands amplifying circuit as described in claim 1, it is characterised in that：The numerical-control attenuator (2) includes
Signal input part, signal output end, adjustable attenuation input terminal.
3. a kind of Ku wave bands amplifying circuit as claimed in claim 1 or 2, it is characterised in that：The numerical-control attenuator (2) and
First order amplifier (4) is concatenated between final power amplifier (6).
4. a kind of Ku wave bands amplifying circuit as claimed in claim 3, it is characterised in that：The amplifying circuit further includes π types
Attenuator (3), the π types attenuator (3) are serially connected between numerical-control attenuator (2) and first order amplifier (4).
5. a kind of Ku wave bands amplifying circuit as claimed in claim 3, it is characterised in that：The amplifying circuit further includes prime
Isolator (1), rear class isolator (5), input signal are sent to the input terminal of numerical-control attenuator (2) after prime isolator (1)；
The output signal of first order amplifier (4) is sent to the input terminal of final power amplifier (6) after rear class isolator (5).
6. a kind of Ku wave bands amplifying circuit as claimed in claim 3, it is characterised in that：The first order amplifier (4) and
The material of final power amplifier (6) is GaAs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265969.7U CN207543074U (en) | 2017-09-29 | 2017-09-29 | A kind of Ku wave bands amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265969.7U CN207543074U (en) | 2017-09-29 | 2017-09-29 | A kind of Ku wave bands amplifying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207543074U true CN207543074U (en) | 2018-06-26 |
Family
ID=62609801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721265969.7U Expired - Fee Related CN207543074U (en) | 2017-09-29 | 2017-09-29 | A kind of Ku wave bands amplifying circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207543074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768772A (en) * | 2018-12-19 | 2019-05-17 | 安徽华东光电技术研究所有限公司 | Minimize high efficiency X-band power amplifier module and preparation method thereof |
-
2017
- 2017-09-29 CN CN201721265969.7U patent/CN207543074U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768772A (en) * | 2018-12-19 | 2019-05-17 | 安徽华东光电技术研究所有限公司 | Minimize high efficiency X-band power amplifier module and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190418 Address after: 241000 Emshan Road, Yijiang District, Wuhu City, Anhui Province Patentee after: ANHUI HUADONG PHOTOELECTRIC TECHNOLOGY INSTITUTE Co.,Ltd. Address before: 241000 Two High-tech Industrial Development Zones in Yijiang District, Wuhu City, Anhui Province Patentee before: ANHUI EAST CHINA PHOTOELECTRIC INDUSTRY RESEARCH INSTITUTE CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 Termination date: 20210929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |