CN203632645U - High-speed agility frequency marking device - Google Patents
High-speed agility frequency marking device Download PDFInfo
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- CN203632645U CN203632645U CN201320839279.3U CN201320839279U CN203632645U CN 203632645 U CN203632645 U CN 203632645U CN 201320839279 U CN201320839279 U CN 201320839279U CN 203632645 U CN203632645 U CN 203632645U
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
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Abstract
The utility model provides a high-speed agility frequency marking device. The device comprises a multi-frequency generator, a fine frequency module, a coarse frequency selector and a first frequency mixer, the multi-frequency generator converts fixed frequency signals generated by an external crystal oscillator to multi-dot frequency signals of first dot frequency signals and second dot frequency signals, the fine frequency module is electrically connected with the multi-frequency generator, a plurality of first dot frequency signals outputted by the multi-frequency generator are extracted and subdivided into fine stepping frequency marking signals with corresponding quantities, the coarse frequency selector is electrically connected with the multi-frequency generator, a plurality of second dot frequency signals outputted by the multi-frequency generator are extracted, and the first frequency mixer receives the fine stepping frequency marking signals outputted by the fine frequency module and the second dot frequency signals extracted by the coarse frequency selector, performs frequency mixing processing of the fine stepping frequency marking signals and the second dot frequency signals, and outputs the signals. The fine stepping frequency marking signals are advantaged by small stepping, the coarse frequency selector can select any second dot frequency signals to increase the frequency bandwidth, and the technical effect of broadband fine stepping can be realized by the combination of the fine stepping frequency marking signals and the coarse frequency selector.
Description
Technical field
The utility model relates to a kind of frequency generator, and is particularly related to a kind of high speed frequency agility device for mark.
Background technology
High speed frequency agility rate source is the important component part of contemporary electronic systems, and along with the develop rapidly of the technology such as radar, navigation, communication and space electronic equipment, system is also more and more higher to the requirement in high speed frequency agility rate source.Can equipment accurately move, and is not only subject to the impact of the frequency bandwidth of high speed frequency agility rate source output, is also subject to the impact of the difference on the frequency (being called stepping) between adjacent two frequency values simultaneously.Particularly, in the time that the required frequency signal of system exceeds the bandwidth range in high speed frequency agility rate source or just fall between adjacent two frequency values, system cannot or accurately be moved.Therefore, how to increase the bandwidth in high speed frequency agility rate source and the stepping that simultaneously reduces between adjacent two frequency values will more and more be subject to people's concern.
Traditional high speed frequency agility rate source adopts independent harmonic oscillator or digital frequency synthesis technology to realize conventionally.Harmonic oscillator can produce the frequency signal that frequency is fundamental frequency integral multiple, i.e. stepping between adjacent two harmonic waves is fundamental frequency value.When fundamental frequency value hour, its bandwidth of little while of stepping of harmonic oscillator output is also narrow; In order to increase bandwidth, need to increase input first-harmonic value, this increases the stepping between the harmonic wave that causes exporting.Adopt harmonic oscillator can not reach the technical requirement that both increases bandwidth and reduce the stepping between output harmonic wave simultaneously simultaneously.Adopt digital frequency synthesis technology, utilize amplitude and the phase place of digitizing technique to waveform to quantize, and form different frequency values after phase accumulator is cumulative.The advantage of this kind of method is, the word length of accumulator is depended in the stepping of output frequency, and it is very little that its stepping can reach.And in theory, this kind of its frequency bandwidth of method is very wide, but in actual use, due to the impact of the spuious and analog-to-digital conversion error that introduced by phase truncation, the frequency polydispersity of this kind of method output is very large, and its output frequency still can only use within the scope of narrow bandwidth.
The requirement of broadband and thin stepping cannot be realized in traditional high speed frequency agility rate source simultaneously, and its versatility is poor.In the time that reality is used, conventionally need design specific high speed frequency agility rate source for different device systems, between broadband and thin stepping, select one and meet.Not only the design cycle is long and design cost is high in design iterations high speed frequency agility rate source.
Utility model content
The utility model cannot be realized the requirement of broadband and thin stepping simultaneously in order to overcome prior art high speed frequency agility rate source, a kind of high speed frequency agility device for mark is provided.
To achieve these goals, the utility model provides a kind of high speed frequency agility device for mark, comprises multi-frequency generator, thin frequency module, thick selector and the first frequency mixer frequently.The fixed frequency signal that multi-frequency generator produces external crystal-controlled oscillation is converted to the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal.Thin frequency module is electrically connected multi-frequency generator, extracts multiple first point-frequency signals of multi-frequency generator output, and this first point-frequency signal is subdivided into the thin stepping frequency standard signal of respective numbers.Thick selector is frequently electrically connected multi-frequency generator, extracts multiple second point-frequency signals of multi-frequency generator output.The first frequency mixer receives thin stepping frequency standard signal and thick second point-frequency signal that selector extracts frequently of thin frequency module output, and will after both Frequency mixing processing, export.
Above-mentioned high speed frequency agility device for mark, wherein, thin frequency module comprises thin frequency selector and the first frequency divider, thin selector is frequently electrically connected between multi-frequency generator and the first frequency divider.
Above-mentioned high speed frequency agility device for mark, wherein, thin frequency module also comprises step-by-step adjustment unit, step-by-step adjustment unit receives the fixed frequency that external crystal-controlled oscillation produces, and after Subdividing Processing and after the thin stepping frequency standard signal mixing of thin frequency module output, exports.
Above-mentioned high speed frequency agility device for mark, wherein, step-by-step adjustment unit comprises the second frequency divider and the second frequency mixer, and the second frequency divider is electrically connected external crystal-controlled oscillation, and two inputs of the second frequency mixer are electrically connected respectively the output of the first frequency divider and the second frequency divider.
Above-mentioned high speed frequency agility device for mark, wherein, step-by-step adjustment unit also comprises power splitter, and power splitter input is electrically connected external crystal-controlled oscillation, and wherein an output is electrically connected the second frequency divider, and another output is electrically connected the output of thin frequency module.
Above-mentioned high speed frequency agility device for mark, wherein, multi-frequency generator comprises the point-frequency signal of the steppings such as harmonic oscillator output.
Above-mentioned high speed frequency agility device for mark, wherein, multi-frequency generator also comprises at least one tri-frequency divider, tri-frequency divider is electrically connected harmonic oscillator.
Above-mentioned high speed frequency agility device for mark, wherein, high speed frequency agility device for mark also comprises temperature compensation attenuator, is electrically connected the output of thin frequency module, the frequency signal of the thin frequency module output of temperature-compensating.
Above-mentioned high speed frequency agility device for mark, wherein, high speed frequency agility device for mark also comprises housing, and housing is divided into multiple accommodation spaces through demarcation strip, and multi-frequency generator, thin frequency module, thick selector frequently and the first frequency mixer are separately positioned in different accommodation spaces.
Above-mentioned high speed frequency agility device for mark, wherein, housing is that nickel plating ag material is made, and between accommodation space by silver-coated copper wire to wearing connection.
In sum, the utility model compared with prior art, has the following advantages: by multi-frequency generator is set, its fixed frequency signal that crystal oscillator can be produced is converted to the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal.Thin frequency module is set, and it can be subdivided into multiple first point-frequency signals of multi-frequency generator output the thin stepping frequency standard signal of respective numbers.Thick selector frequently extracts multiple second point-frequency signals of multi-frequency generator output.The first frequency mixer carries out the thin stepping frequency standard signal of thin frequency module output and thick frequently the second point-frequency signal that selector extracts to export after Frequency mixing processing.Thick selector frequently can select arbitrarily multiple the second point-frequency signals to increase frequency bandwidth, with the technique effect that can realize the thin stepping in broadband after the mixing of thin stepping frequency standard signal, greatly increase the versatility of high speed frequency agility device for mark, solve legacy frequencies source design iterations, the defect that the design cycle is long and cost is high.
In addition,, by step-by-step adjustment unit being set in thin frequency module, it can further segment the stepping of thin stepping frequency standard signal.By harmonic oscillator device is set in multi-frequency generator, its fixed frequency signal that external crystal-controlled oscillation can be produced is converted to and waits the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal of stepping, makes the steppings such as the thin stepping frequency standard signal of the respective numbers that thin frequency module exports is.By tri-frequency divider being set in multi-frequency generator, the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal of harmonic oscillator output have reduced the stepping of output frequency after frequency division, Frequency mixing processing, reach the technique effect of the thin stepping frequency standard signal of further refinement.By set temperature compensated attenuator, it can carry out temperature-compensating to the output frequency of thin frequency module, guarantees the consistency of output frequency in wide temperature range.By multiple-frequency generator, thin frequency module, thick selector frequently and the first frequency mixer are separately arranged in different accommodation spaces, reduce mutual frequency interferences, greatly improve the spectral purity of high speed frequency agility device for mark output frequency.
For above-mentioned and other objects, features and advantages of the present utility model can be become apparent, preferred embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below.
Accompanying drawing explanation
Figure 1 shows that the circuit diagram of the high speed frequency agility device for mark that the utility model embodiment mono-provides.
Figure 2 shows that the circuit diagram of the high speed frequency agility device for mark that the utility model embodiment bis-provides.
Figure 3 shows that the internal structure schematic diagram of the housing of the high speed frequency agility device for mark that the utility model provides.
Embodiment
Embodiment mono-
Figure 1 shows that the circuit diagram of the high speed frequency agility device for mark that the utility model embodiment mono-provides.Figure 3 shows that the internal structure schematic diagram of the housing of the high speed frequency agility device for mark that the utility model provides.See also Fig. 1 and Fig. 3.
High speed frequency agility device for mark comprises multi-frequency generator 1, thin frequency module 2, thick selector 3 and the first frequency mixer 4 frequently.The fixed frequency signal that multi-frequency generator 1 produces external crystal-controlled oscillation is converted to the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal.Thin frequency module 2 is electrically connected multi-frequency generator 1, extracts multiple the first point-frequency signals that multi-frequency generator 1 is exported, and this first point-frequency signal is subdivided into the thin stepping frequency standard signal of respective numbers.Thick selector 3 is frequently electrically connected multi-frequency generator 1, extracts multiple the second point-frequency signals that multi-frequency generator 1 is exported.The first frequency mixer 4 receives thin stepping frequency standard signal and thick the second point-frequency signal that selector 3 extracts frequently that thin frequency module 2 is exported, and will after both Frequency mixing processing, export.
In the present embodiment, multi-frequency generator 1 comprises harmonic oscillator 11.Harmonic oscillator 11 is electrically connected outside 100MHz constant-temperature crystal oscillator, multiple many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal that wait stepping that the 100MHz fixed frequency signal that this external crystal-controlled oscillation is produced is changed and formed stepping is 100MHz, as 600MHz, 700MHz, 800MHz ... 2300MHz, 2400MHz, 2500MHz etc.But the fixed frequency value that the utility model produces external crystal-controlled oscillation is not limited in any way.
In the present embodiment, thin frequency module 2 comprises thin frequency selector 21 and the first frequency divider 22.Thin multiple the first point-frequency signals that selector 21 selected harmonic generators 11 are exported frequently, and after the first frequency divider 22 frequency divisions, form the thin stepping frequency standard signal of respective numbers.Preferably, thin selector 21 is frequently four to select a switch filter, and this four selects a switch filter to comprise that one four is selected a switch and four band pass filters; The first frequency divider 22 is five frequency divider.Four select a switch filter from harmonic oscillator 11, to select 600MHz, 700MHz, 800MHz and tetra-the first point-frequency signals of 900MHz, and are 120MHz, 140MHz, 160MHz and tetra-thin stepping frequency standard signals of 180MHz through the first frequency divider 22 frequency divisions.But the utility model is not limited in any way this.In other embodiment, thin selector 21 frequently can be six and selects a switch filter or eight to select a switch filter, and the first point-frequency signal of its selection also can be other value, and the first frequency divider 22 also can be four-divider or six frequency dividers.
In the present embodiment, thick selector 3 is frequently either-or switch filter, and either-or switch filter extracts 2400MHz, two the second point-frequency signals of 2500MHz from multi-frequency generator 1.But the utility model is not limited in any way this.
In the present embodiment, thin frequency module 2 also comprises step-by-step adjustment unit 23, and step-by-step adjustment unit 23 receives the fixed frequency that external crystal-controlled oscillation produces, and after the thin stepping frequency standard signal mixing of exporting with the first frequency divider 22 after Subdividing Processing, exports.Step-by-step adjustment unit 23 comprises at least one second frequency divider 231 and the second frequency mixer 232.In the present embodiment, step-by-step adjustment unit 23 comprises second frequency divider 231, and the second frequency divider 231 is two-divider.But the utility model is not limited in any way this.The second frequency divider 231 receives the 100MHz fixed frequency value that external crystal-controlled oscillation produces, and carried out and 120MHz, 140MHz, 160MHz and tetra-thin stepping frequency standard signals of 180MHz of after two divided-frequency, exporting with the first frequency divider 22 through the second frequency mixer 232 mixing, form the thin stepping frequency standard signal that 110MHz, 130MHz, 150MHz, 170MHz and five steppings of 190MHz are 20MHz.120MHz, 140MHz, 160MHz and tetra-thin stepping frequency standard signals of 180MHz of exporting in conjunction with the first frequency divider 22, the thin stepping frequency standard signal that the thin exportable 110MHz～190MHz of frequency module 2 stepping is 10MHz, further refinement thin stepping frequency standard signal.The thin stepping frequency standard signal that 110MHz～190MHz stepping that thin frequency module 2 is exported is 10MHz and thick frequently two the second point-frequency signals of 2400MHz, 2500MHz that selector 3 extracts form the frequency standard signal of 2500MHz～2690MHz stepping 10MHz after the first frequency mixer 4 mixing.
In the present embodiment, step-by-step adjustment unit 23 also comprises power splitter 233.Power splitter 233 inputs are electrically connected external crystal-controlled oscillation, and wherein an output is electrically connected the second frequency divider 233, and another output is electrically connected the output of thin frequency module 2.In the present embodiment, power splitter 233 is two power splitters.But the utility model is not limited in any way this.In other embodiment, power splitter 233 can be four power splitters.Power splitter 233 is divided into the input signal merit of 100MHz the frequency signal of two-way 100MHz.Wherein a road is accessed the second frequency divider 231 and is formed five thin stepping frequency standard signals that 110MHz～190MHz stepping is 20MHz, another road directly exports the output of thin frequency module 2 to, making the thin stepping frequency standard signal that thin frequency module 2 is exported is that 100MHz～190MHz stepping is 10MHz, has expanded thin stepping frequency marking signal bandwidth.
In the present embodiment, high speed frequency agility device for mark also comprises temperature compensation attenuator 5, be electrically connected the output of thin frequency module 2, the frequency signal that the thin frequency module 2 of temperature-compensating is exported can guarantee the consistency of output frequency in the wide temperature range of-40 ℃～70 ℃.
In the present embodiment, high speed frequency agility device for mark also comprises housing 6, and housing 6 is divided into multiple accommodation spaces 61 through demarcation strip.Multi-frequency generator 1, thin frequency module 2, thick selector 3 frequently and the first frequency mixer 4 are separately positioned in different accommodation space 61.By frequency or function, the module in high speed frequency agility device for mark is separately arranged in different accommodation space 61 and carries out shielding protection, reduce mutual frequency interferences, greatly improved the spectral purity of high speed frequency agility device for mark output frequency.Preferably, housing 6 is made for nickel plating ag material, and between each accommodation space 61 by silver-coated copper wire to wearing connection, guaranteed radio frequency air-tightness, also reduced mutual frequency interferences simultaneously, further improve the spectral purity of transmitting.
Embodiment bis-
As shown in Figure 2, the present embodiment and embodiment mono-and change basic identical.Difference is: multi-frequency generator 1 also comprises that at least one tri-frequency divider 12, the tri-frequency divider 12 is electrically connected harmonic oscillator 11.In the present embodiment, the quantity of tri-frequency divider 12 is one, and is two-divider.But the utility model is not limited in any way this.Particularly, the stepping that harmonic oscillator 11 produces is to form the point-frequency signal that stepping is 50MHz after many point-frequency signal tri-frequency dividers 12 frequency divisions that comprise the first point-frequency signal and the second point-frequency signal of 100MHz, as 600MHz, 650MHz, 700MHz, 750MHz ... 2300MHz, 2350MHz, 2400MHz etc.Choosing these seven first point-frequency signals of 600MHz～900MHz, is seven thin stepping frequency standard signals that 120MHz～180MHz stepping is 10MHz through the first frequency divider 22 frequency divisions.Compared with embodiment mono-, the thin stepping frequency standard signal stepping of the present embodiment after the first frequency divider 22 frequency divisions is less.Can reach the technique effect of the stepping that regulates thin stepping frequency standard signal by increasing tri-frequency divider 12.
In sum, by multi-frequency generator 1 is set, its fixed frequency signal that crystal oscillator can be produced is converted to the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal.Thin frequency module 2 is set, and its multiple the first point-frequency signals that multi-frequency generator 1 can be exported are subdivided into the thin stepping frequency standard signal of respective numbers.Thick selector 3 frequently extracts multiple the second point-frequency signals that multi-frequency generator 1 is exported.The thin stepping frequency standard signal that the first frequency mixer 4 is exported thin frequency module 2 and thick frequently the second point-frequency signal that selector 3 extracts carry out exporting after Frequency mixing processing.Thick selector 3 frequently can select arbitrarily multiple the second point-frequency signals to increase frequency bandwidth, with the requirement that can realize the thin stepping in broadband after the mixing of thin stepping frequency standard signal, greatly increase the versatility of high speed frequency agility device for mark, solve legacy frequencies source design iterations, the defect that the design cycle is long and cost is high.
In addition, by the interior step-by-step adjustment unit that arranges of thin frequency module 2, it can further segment the stepping of thin stepping frequency standard signal.By at the interior harmonic oscillator 11 that arranges of multi-frequency generator 1, its fixed frequency signal that external crystal-controlled oscillation can be produced such as is converted at the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal of stepping, makes the steppings such as multiple thin stepping frequency standard signal that thin frequency module 2 is exported is.By at the interior tri-frequency divider 12 that arranges of multi-frequency generator 1, the point-frequency signal that harmonic oscillator 11 is exported has reduced the stepping of output frequency after after frequency division, Frequency mixing processing, reaches the technique effect of the thin stepping frequency standard signal of further refinement.By set temperature compensated attenuator 5, it can carry out temperature-compensating to the output frequency of thin frequency module 2, guarantees the consistency of output frequency in wide temperature range.By multiple-frequency generator 1, thin frequency module 2, thick selector 3 frequently and the first frequency mixer 4 are separately arranged in different accommodation space 61, reduce mutual frequency interferences, greatly improve the spectral purity of high speed frequency agility device for mark output frequency.
Although the utility model is disclosed as above by preferred embodiment; but not in order to limit the utility model; anyly know this skill person; not departing from spirit and scope of the present utility model; can do a little change and retouching, therefore protection range of the present utility model is when being as the criterion depending on claims scope required for protection.
Claims (10)
1. a high speed frequency agility device for mark, is characterized in that, comprising:
Multi-frequency generator, the fixed frequency signal that external crystal-controlled oscillation is produced is converted to the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal;
Thin frequency module, is electrically connected described multi-frequency generator, extracts multiple first point-frequency signals of described multi-frequency generator output, and this first point-frequency signal is subdivided into the thin stepping frequency standard signal of respective numbers;
Thick selector frequently, is electrically connected multi-frequency generator, extracts multiple second point-frequency signals of multi-frequency generator output;
The first frequency mixer, receives the thin stepping frequency standard signal of described thin frequency module output and the second point-frequency signal that described thick frequency selector extracts, and will after both Frequency mixing processing, export.
2. high speed frequency agility device for mark according to claim 1, is characterized in that, described thin frequency module comprises thin frequency selector and the first frequency divider, and described thin frequency selector is electrically connected between described multi-frequency generator and the first frequency divider.
3. high speed frequency agility device for mark according to claim 2, it is characterized in that, described thin frequency module also comprises step-by-step adjustment unit, described step-by-step adjustment unit receives the fixed frequency that external crystal-controlled oscillation produces, and after the thin stepping frequency standard signal mixing of exporting with described the first frequency divider after Subdividing Processing, exports.
4. high speed frequency agility device for mark according to claim 3, it is characterized in that, described step-by-step adjustment unit comprises at least one second frequency divider and the second frequency mixer, described the second frequency divider is electrically connected external crystal-controlled oscillation, and two inputs of the second frequency mixer are electrically connected respectively the output of described the first frequency divider and the second frequency divider.
5. high speed frequency agility device for mark according to claim 4, it is characterized in that, described step-by-step adjustment unit also comprises power splitter, and described power splitter input is electrically connected external crystal-controlled oscillation, wherein an output is electrically connected the second frequency divider, and another output is electrically connected the output of thin frequency module.
6. high speed frequency agility device for mark according to claim 1, is characterized in that, described multi-frequency generator comprises harmonic oscillator, the many point-frequency signals that comprise the first point-frequency signal and the second point-frequency signal of the steppings such as described harmonic oscillator output.
7. high speed frequency agility device for mark according to claim 6, is characterized in that, described multi-frequency generator also comprises at least one tri-frequency divider, and described tri-frequency divider is electrically connected described harmonic oscillator.
8. high speed frequency agility device for mark according to claim 1, is characterized in that, described high speed frequency agility device for mark also comprises temperature compensation attenuator, is electrically connected the output of described thin frequency module, the frequency signal of the thin frequency module output of temperature-compensating.
9. high speed frequency agility device for mark according to claim 1, it is characterized in that, described high speed frequency agility device for mark also comprises housing, described housing is divided into multiple accommodation spaces through demarcation strip, and described multi-frequency generator, thin frequency module, thick selector frequently and the first frequency mixer are separately positioned in different accommodation spaces.
10. high speed frequency agility device for mark according to claim 9, is characterized in that, described housing is that nickel plating ag material is made, and between described accommodation space by silver-coated copper wire to wearing connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320839279.3U CN203632645U (en) | 2013-12-18 | 2013-12-18 | High-speed agility frequency marking device |
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| CN201320839279.3U CN203632645U (en) | 2013-12-18 | 2013-12-18 | High-speed agility frequency marking device |
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| CN203632645U true CN203632645U (en) | 2014-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684443A (en) * | 2013-12-18 | 2014-03-26 | 无锡市雷华科技有限公司 | Method and device for compounding high-speed frequency agility markers |
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2013
- 2013-12-18 CN CN201320839279.3U patent/CN203632645U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684443A (en) * | 2013-12-18 | 2014-03-26 | 无锡市雷华科技有限公司 | Method and device for compounding high-speed frequency agility markers |
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