CN206323367U - A kind of broadband agility scheme synthesizer - Google Patents
A kind of broadband agility scheme synthesizer Download PDFInfo
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- CN206323367U CN206323367U CN201621415528.6U CN201621415528U CN206323367U CN 206323367 U CN206323367 U CN 206323367U CN 201621415528 U CN201621415528 U CN 201621415528U CN 206323367 U CN206323367 U CN 206323367U
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Abstract
The utility model discloses a kind of broadband agility scheme synthesizer, frequency hopping circuit and work(parallel circuit including electrical connection, wherein, frequency hopping circuit includes comprehensive, the DDS direct synthesizers of frequency, frequency multiplier, frequency mixer, power splitter, RF switch, wave filter and amplifier, frequently it is comprehensive to be connected with frequency multiplier, frequency multiplier is connected with DDS direct synthesizers with mixer input, mixer output is connected with power splitter, power splitter output end is connected with wave filter, and filter output is connected by RF switch with amplifier in；Work(parallel circuit includes multiple power splitters in hierarchical arrangement, two output ends of first order power splitter, two power splitter inputs connection corresponding with the second level respectively, each output end of two power splitters of the second level is connected with the input of corresponding third level power splitter respectively.Broadband agility scheme synthesizer of the present utility model, it has the structure design and device layout of optimization, and wide frequency range, frequency conversion speed are quick, output port many and volume very little.
Description
Technical field
The utility model belongs to microwave-radio technology field, and in particular to a kind of broadband agility scheme synthesizer.
Background technology
In a communications system, frequency synthesizer (FS) is an important module, is the important composition of contemporary electronic systems
Part, has a wide range of applications in the equipment such as military communication, radar and guidance.With the development of modern electronic technology, system
Higher and higher requirement is proposed to indexs such as the precision of frequency synthesizer, frequency resolution, Hopping time and the purities of frequency spectrum.
It is slower using the synthesizer frequency conversion speed of conversion system in frequency synthesizer of the prior art, typically all in ms
Level, the frequency range of frequency conversion is narrower, and application circuit is complex, sufficiently bulky when output port is more.And microwave radio system
In system, it is necessary to frequency range is wide, frequency conversion speed is fast and output way more than the comprehensive signal of frequency, wideband frequency synthesis of the prior art
There is the technological deficiency that area is big, power consumption is high in device, it is impossible to meet fast frequency-hopped, small stepping and miniaturization, the requirement of low-power consumption.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, the utility model proposes a kind of broadband frequency agility frequency synthesis
Device, it has structure design and device layout of optimization, wide frequency range, frequency conversion speed are quick, output port is more and volume very
It is small.
To achieve the above object, the concrete technical scheme that the utility model is used is as follows：
A kind of broadband agility scheme synthesizer, includes the frequency hopping circuit and work(parallel circuit of electrical connection, wherein,
The frequency hopping circuit include frequency comprehensive, DDS direct synthesizers, frequency multiplier, frequency mixer, power splitter, RF switch,
Wave filter and amplifier, are connected wherein the frequency is comprehensive with frequency multiplier, and frequency multiplier is defeated with frequency mixer with DDS direct synthesizers
Enter end connection, mixer output is connected with power splitter, and power splitter output end is connected with wave filter, and filter output is by penetrating
Frequency switch be connected with amplifier in, amplifier out as frequency hopping circuit output end；
The work(parallel circuit includes the input and frequency hopping of the multiple power splitters, wherein first order power splitter in hierarchical arrangement
Circuit output end is connected, two output ends, two power splitter inputs connection corresponding with the second level, two work(of the second level respectively
Each output end of device is divided to be connected respectively with the input of corresponding third level power splitter.
Further preferably wave filter in the frequency hopping circuit is two as of the present utility model, its respectively with frequency hopping
The two output ends connection of power splitter in circuit.
Further preferably first order power splitter in the work(parallel circuit is one as of the present utility model, its correspondence
Second level power splitter be two, the corresponding 3rd pole power splitter in the second level is four, so as to generate eight road work(point output letter
Number.
It is used as of the present utility model further preferred, two layers of setting of frequency hopping circuit and the work(parallel circuit point.
Frequency synthesizer of the present utility model, quick frequency conversion signal, the fixed comprehensive generation fixed frequency letter of frequency are produced by DDS
It is mixed number after frequency multiplier, is filtered after power splitter with the DDS signals produced, through RF switch selection process
Amplifier amplifies, and last work(separates the output of 8 tunnels.
In general, by the contemplated above technical scheme of the utility model compared with prior art, have with following
Beneficial effect：
Frequency synthesizer of the present utility model can produce the broadband frequency agility Low phase noise frequency in the range of 12GHz~24GHz
Composite signal, its small volume, frequency conversion speed is better than 30us, and output port is more, can large-scale application in microwave radar systems.
Brief description of the drawings
Fig. 1 is the structural representation of the broadband agility scheme synthesizer of the utility model embodiment.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
As shown in figure 1, a kind of broadband agility scheme synthesizer of the present utility model, including electrical connection frequency hopping circuit and
Work(parallel circuit.
The frequency hopping circuit include frequency comprehensive 1 (also referred to as local oscillator), DDS direct synthesizers 3, frequency multiplier 2, frequency mixer 4,
Power splitter 5, RF switch 7, wave filter 6 and amplifier 8, its intermediate frequency comprehensive 1 are connected with frequency multiplier 2, frequency multiplier 2 and the direct frequencies of DDS
Rate synthesizer 3 is connected with the input of frequency mixer 4, and the output end of frequency mixer 4 is connected with power splitter 5, the output end of power splitter 5 and filtering
Device connects 6 and connect, and the output end of wave filter 6 is connected by RF switch 7 with the input of amplifier 8, and the output end of amplifier 8 is used as frequency hopping electricity
The output end on road
As shown in figure 1, work(parallel circuit includes multiple power splitters 9 in hierarchical arrangement, i.e., the multiple power splitters cascaded successively
9, the wherein input of first order power splitter 9 is connected with frequency hopping circuit output end, two output ends respectively corresponding with the second level two
The connection of the individual input of power splitter 9, each output ends of two power splitters 9 of the second level respectively with corresponding third level power splitter 9
Input is connected.
Preferably, the wave filter 6 in frequency hopping circuit is two, its two output respectively with the power splitter 5 in frequency hopping circuit
End connection.
Preferably, the first order power splitter 9 in work(parallel circuit is one, and its corresponding second level power splitter 9 is two, the
Two grades of corresponding 3rd pole power splitters 9 are four, so as to generate eight road work(point output signals.
Frequency synthesizer of the present utility model, quick frequency conversion signal is produced by DDS3, and fixed frequency comprehensive 1 produces fixed frequency
Signal is mixed after frequency multiplier 2 with the DDS3 signals produced, is filtered, is selected through RF switch after power splitter 5
Select and amplify by amplifier 8, last work(separates the output of 8 tunnels.
The topology layout of frequency synthesizer of the present utility model can be using two layers of composition up and down, and last layer is frequency hopping electricity
Road, next layer is work(parallel circuit, has effectively saved space.
Frequency synthesizer in one embodiment can produce 12~24GHz frequency signals, and frequency hopping conversion time is better than
30us, while low phase noise≤- 85dBc/Hz@1kHz, the output of 8 tunnels, volume is only 120mm × 60mm × 15mm.
As it will be easily appreciated by one skilled in the art that the foregoing is only preferred embodiment of the present utility model, not
To limit the utility model, all any modifications made within spirit of the present utility model and principle, equivalent and change
Enter, should be included within protection domain of the present utility model.
Claims (4)
1. a kind of broadband agility scheme synthesizer, includes the frequency hopping circuit and work(parallel circuit of electrical connection, wherein,
The frequency hopping circuit includes comprehensive, the DDS direct synthesizers of frequency, frequency multiplier, frequency mixer, power splitter, RF switch, filtering
Device and amplifier, are connected wherein the frequency is comprehensive with frequency multiplier, and frequency multiplier and DDS direct synthesizers are and mixer input
Connection, mixer output is connected with power splitter, and power splitter output end is connected with wave filter, and filter output is opened by radio frequency
Pass be connected with amplifier in, amplifier out as frequency hopping circuit output end；
The work(parallel circuit includes multiple power splitters in hierarchical arrangement, the wherein input of first order power splitter and frequency hopping circuit
Output end is connected, two output ends, two power splitter inputs connection corresponding with the second level, two power splitters of the second level respectively
Each output end connected respectively with the input of corresponding third level power splitter.
2. a kind of broadband agility scheme synthesizer according to claim 1, wherein, the wave filter in the frequency hopping circuit
For two, it is connected with two output ends of the power splitter in frequency hopping circuit respectively.
3. a kind of broadband agility scheme synthesizer according to claim 1 or 2, wherein, in the work(parallel circuit
One-level power splitter is one, and its corresponding second level power splitter is two, and the corresponding 3rd pole power splitter in the second level is four, from
And eight road work(point output signals can be generated.
4. a kind of broadband agility scheme synthesizer according to claim 1 or 2, wherein, the frequency hopping circuit and work(point
Two layers of setting of circuit point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415528.6U CN206323367U (en) | 2016-12-22 | 2016-12-22 | A kind of broadband agility scheme synthesizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415528.6U CN206323367U (en) | 2016-12-22 | 2016-12-22 | A kind of broadband agility scheme synthesizer |
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| CN206323367U true CN206323367U (en) | 2017-07-11 |
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| CN201621415528.6U Active CN206323367U (en) | 2016-12-22 | 2016-12-22 | A kind of broadband agility scheme synthesizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777599A (en) * | 2018-08-15 | 2018-11-09 | 上海频语电子技术有限公司 | A kind of microwave broadband instantaneous frequency measurement reception system |
| CN112187259A (en) * | 2020-09-11 | 2021-01-05 | 中国电子科技集团公司第十三研究所 | Broadband agile frequency source |
-
2016
- 2016-12-22 CN CN201621415528.6U patent/CN206323367U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777599A (en) * | 2018-08-15 | 2018-11-09 | 上海频语电子技术有限公司 | A kind of microwave broadband instantaneous frequency measurement reception system |
| CN112187259A (en) * | 2020-09-11 | 2021-01-05 | 中国电子科技集团公司第十三研究所 | Broadband agile frequency source |
| CN112187259B (en) * | 2020-09-11 | 2022-10-14 | 中国电子科技集团公司第十三研究所 | Broadband agile frequency source |
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