CN107222171A - One kind is used for two-way swept-frequency signal speedy carding process two-way Sweep Source - Google Patents
One kind is used for two-way swept-frequency signal speedy carding process two-way Sweep Source Download PDFInfo
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- CN107222171A CN107222171A CN201710356543.0A CN201710356543A CN107222171A CN 107222171 A CN107222171 A CN 107222171A CN 201710356543 A CN201710356543 A CN 201710356543A CN 107222171 A CN107222171 A CN 107222171A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B23/00—Generation of oscillations periodically swept over a predetermined frequency range
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Abstract
It is used for two-way swept-frequency signal speedy carding process two-way Sweep Source, including constant-temperature crystal oscillator, one-level power splitter, DDS, phaselocked loop one, phaselocked loop two, two grades of power splitter I and II power splitters two, two grades of power splitters three, frequency mixer one, frequency mixer two, frequency mixer three, one-level wave filter one, one-level wave filter two, one-level wave filter three, one-level wave filter four, one-level wave filter five, two-stage filter I and II wave filter two, × N frequencys multiplication one, × N frequencys multiplication two the invention discloses one kind.The two-way Sweep Source of the present invention, is higher than the frequency of phaselocked loop one by the frequency of phaselocked loop two, it is hereby achieved that two frequency sweeps with certain frequency difference are exported.
Description
Technical field
The present invention relates to a kind of Sweep Source, and in particular to one kind is used for two-way swept-frequency signal speedy carding process two-way Sweep Source.
Background technology
Sweep Source plays indispensable role in transmitting and test equipment, designs a kind of flexible and general frequency sweep
Signal generator has very important meaning.Sweep Source is the modern times such as wireless communication system, radar and electronic measuring instrument
The core of electronic equipment, its index directly determines the performance of electronic equipment.Improved constantly with the working frequency of electronic equipment,
Demand to 2~7GHz wave band Sweep Sources constantly increases, and the requirement to the index such as its phase noise, spuious is increasingly improved.
But the Sweep Source in existing design, a usual Sweep Source only has output source, i.e., can only carry out single channel
The output of swept-frequency signal.
The content of the invention
Problems of the prior art of the present invention are the Sweep Sources in existing design, and a usual Sweep Source only has one
Individual output source, i.e., can only carry out the output of single channel swept-frequency signal, it is therefore intended that be used for two-way swept-frequency signal at a high speed there is provided one kind
Two-way Sweep Source is exported, the frequency of phaselocked loop one is higher than by the frequency of phaselocked loop two, it is hereby achieved that two have necessarily
The frequency sweep output of frequency-splitting.
The present invention is achieved through the following technical solutions：
One kind be used for two-way swept-frequency signal speedy carding process two-way Sweep Source, including constant-temperature crystal oscillator, one-level power splitter,
DDS, phaselocked loop one, phaselocked loop two, two grades of power splitter I and II power splitters two, two grades of power splitters three, frequency mixer one, frequency mixers
2nd, frequency mixer three, one-level wave filter one, one-level wave filter two, one-level wave filter three, one-level wave filter four, one-level wave filter five,
Two-stage filter I and II wave filter two, × N frequencys multiplication one, × N frequencys multiplication two；The output end of the constant-temperature crystal oscillator and one
Level power splitter input connection, one-level power splitter output end is connected with the input of DDS, phaselocked loop one, phaselocked loop two, DDS's
It is defeated that output end connects two grades of inputs of power splitter one, the output end of phaselocked loop one connection two grades of inputs of power splitter two, phaselocked loops two
Go out end connection two grades of work(point, three inputs；The output end of two grades of power splitters one and two grades of power splitters two and the input of frequency mixer one
It is connected, the output end of frequency mixer one is connected with the input of one-level wave filter one, the output end of one-level wave filter one and × N frequencys multiplication one
Input is connected, and the output end of × N frequencys multiplication one is connected with the input of two-stage filter one；Two grades of power splitters two and two grades of power splitters
Three output ends are connected with the input of frequency mixer two, and the output end of frequency mixer two is connected and one-level wave filter two and one-level wave filter
It is connected between three input by either-or switch one；The output end and frequency mixer of two grades of power splitters one and two grades of power splitters three
Three input is connected, and two are passed through between the output end of frequency mixer three and the input of one-level wave filter four and one-level wave filter five
A switch two is selected to be connected；The output end of one-level wave filter four and one-level wave filter five passes through either-or switch three and × N frequencys multiplication two
Input be connected, the output end of × N frequencys multiplication two is connected with the input of two-stage filter two；The frequency of the phaselocked loop two is high
In the frequency of phaselocked loop one.
The two-way Sweep Source of the present invention, is higher than the frequency of phaselocked loop one by the frequency of phaselocked loop two, it is hereby achieved that
Two frequency sweeps with certain frequency difference are exported.One-level output signal, Ran Houtong are produced by constant-temperature crystal oscillator first
Cross one-level power splitter and input signal is divided into three tunnels, wherein two-way is respectively outputted to phaselocked loop one and phaselocked loop two, in addition the 3rd
Road is separated into two-way by two grades of power splitters and exported, finally, and RF outputs can be obtained after the filtering of two-stage filter one, are passed through
Two-stage filter two can obtain a LO outputs after filtering, wherein the output of LO frequency sweeps is higher than the output of RF frequency sweeps, by first-level filtering
Ripple device two and one-level wave filter three can obtain one after filtering and refer to fundamental frequency, and its output frequency is phaselocked loop two and phaselocked loop one
Difference.
The frequency of the phaselocked loop two is than the frequency high 50MHz or 100MHz of phaselocked loop one, × N frequencys multiplication one, × N frequencys multiplication two
In N be 4.It so finally can obtain RF frequency sweeps and be output as 15-17GHz, LO frequency sweeps output 15.2-17.2GHz or 15.4-
17.4GHz, with reference to fundamental frequency output frequency be 50MHz or 100MHz.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention is a kind of is used for two-way swept-frequency signal speedy carding process two-way Sweep Source, is higher than by the frequency of phaselocked loop two
The frequency of phaselocked loop one, it is hereby achieved that two frequency sweeps with certain frequency difference are exported；
2nd, the present invention is a kind of is used for two-way swept-frequency signal speedy carding process two-way Sweep Source, after the filtering of two-stage filter one
RF outputs can be obtained, a LO outputs can be obtained after the filtering of two-stage filter two, wherein LO frequency sweeps output is higher than RF
Frequency sweep is exported, and can obtain one after one-level wave filter two and one-level wave filter three are filtered refers to fundamental frequency, and its output frequency is
The difference of phaselocked loop two and phaselocked loop one.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, to present invention work
Further to describe in detail, exemplary embodiment and its explanation of the invention is only used for explaining the present invention, is not intended as to this
The restriction of invention.
Embodiment
It is of the invention a kind of for two-way swept-frequency signal speedy carding process two-way Sweep Source, including constant-temperature crystal oscillator, one-level
Power splitter, DDS, phaselocked loop one, phaselocked loop two, two grades of power splitter I and II power splitters two, two grades of power splitters three, frequency mixer one,
Frequency mixer two, frequency mixer three, one-level wave filter one, one-level wave filter two, one-level wave filter three, one-level wave filter four, first-level filtering
Ripple device five, two-stage filter I and II wave filter two, × N frequencys multiplication one, × N frequencys multiplication two；The output of the constant-temperature crystal oscillator
End is connected with one-level power splitter input, and one-level power splitter output end is connected with the input of DDS, phaselocked loop one, phaselocked loop two,
DDS output end connects two grades of inputs of power splitter one, the output end of phaselocked loop one and connects two grades of inputs of power splitter two, phaselocked loops
Two output ends connect two grades of work(point, three inputs；The output end of two grades of power splitters one and two grades of power splitters two is defeated with frequency mixer one
Enter end to be connected, the output end of frequency mixer one is connected with the input of one-level wave filter one, the output end of one-level wave filter one and × N frequencys multiplication
One input connection, the output end of × N frequencys multiplication one is connected with the input of two-stage filter one；Two grades of power splitters two and two grades of work(
The output end of device three is divided to be connected with the input of frequency mixer two, the output end of frequency mixer two is connected and one-level wave filter two and first-level filtering
It is connected between the input of ripple device three by either-or switch one；The output end of two grades of power splitters one and two grades of power splitters three is with mixing
The input of frequency device three is connected, and leads between the output end of frequency mixer three and the input of one-level wave filter four and one-level wave filter five
Either-or switch two is crossed to be connected；The output end of one-level wave filter four and one-level wave filter five passes through either-or switch three and × N times
Frequently two input is connected, and the output end of × N frequencys multiplication two is connected with the input of two-stage filter two；The frequency of the phaselocked loop two
Rate is higher than the frequency of phaselocked loop one.
The two-way Sweep Source of the present invention, is higher than the frequency of phaselocked loop one by the frequency of phaselocked loop two, it is hereby achieved that
Two frequency sweeps with certain frequency difference are exported.One-level output signal, Ran Houtong are produced by constant-temperature crystal oscillator first
Cross one-level power splitter and input signal is divided into three tunnels, wherein two-way is respectively outputted to phaselocked loop one and phaselocked loop two, in addition the 3rd
Road is separated into two-way by two grades of power splitters and exported, finally, and RF outputs can be obtained after the filtering of two-stage filter one, are passed through
Two-stage filter two can obtain a LO outputs after filtering, wherein the output of LO frequency sweeps is higher than the output of RF frequency sweeps, by first-level filtering
Ripple device two and one-level wave filter three can obtain one after filtering and refer to fundamental frequency, and its output frequency is phaselocked loop two and phaselocked loop one
Difference.
It is preferred that, frequency high 50MHz or 100MHz of the frequency than phaselocked loop one of the phaselocked loop two, × N frequencys multiplication one, ×
N in N frequencys multiplication two is 4.So finally can obtain RF frequency sweeps and be output as 15-17GHz, LO frequency sweeps output 15.2-17.2GHz or
15.4-17.4GHz, with reference to fundamental frequency output frequency be 50MHz or 100MHz.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (3)
1. one kind is used for two-way swept-frequency signal speedy carding process two-way Sweep Source, it is characterised in that including constant-temperature crystal oscillator, one
Level power splitter, DDS, phaselocked loop one, phaselocked loop two, two grades of power splitter I and II power splitters two, two grades of power splitters three, frequency mixers
First, frequency mixer two, frequency mixer three, one-level wave filter one, one-level wave filter two, one-level wave filter three, one-level wave filter four, one-level
Wave filter five, two-stage filter I and II wave filter two, × N frequencys multiplication one, × N frequencys multiplication two；The constant-temperature crystal oscillator it is defeated
Go out end to be connected with one-level power splitter input, one-level power splitter output end and DDS, phaselocked loop one, the input phase of phaselocked loop two
Even, DDS output end connects two grades of inputs of power splitter one, the output end of phaselocked loop one and connects two grades of inputs of power splitter two, lock
The output end of phase ring two connects two grades of work(point, three inputs；The output end of two grades of power splitters one and two grades of power splitters two and frequency mixer one
Input be connected, the output end of frequency mixer one is connected with the input of one-level wave filter one, the output end of one-level wave filter one and × N
The input connection of frequency multiplication one, the output end of × N frequencys multiplication one is connected with the input of two-stage filter one；Two grades of power splitters two and two
The level output end of power splitter three is connected with the input of frequency mixer two, and the output end of frequency mixer two is connected and one-level wave filter two and one
It is connected between the input of level wave filter three by either-or switch one；The output end of two grades of power splitters one and two grades of power splitters three
Be connected with the input of frequency mixer three, the input of the output end of frequency mixer three and one-level wave filter four and one-level wave filter five it
Between by either-or switch two be connected；The output end of one-level wave filter four and one-level wave filter five by either-or switch three with ×
The input of N frequencys multiplication two is connected, and the output end of × N frequencys multiplication two is connected with the input of two-stage filter two；The phaselocked loop two
Frequency be higher than phaselocked loop one frequency.
2. it is according to claim 1 a kind of for two-way swept-frequency signal speedy carding process two-way Sweep Source, it is characterised in that institute
State frequency high 50MHz or 100MHz of the frequency than phaselocked loop one of phaselocked loop two.
3. it is according to claim 1 a kind of for two-way swept-frequency signal speedy carding process two-way Sweep Source, it is characterised in that ×
N in N frequencys multiplication one, × N frequencys multiplication two is 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710356543.0A CN107222171A (en) | 2017-05-19 | 2017-05-19 | One kind is used for two-way swept-frequency signal speedy carding process two-way Sweep Source |
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| CN201710356543.0A CN107222171A (en) | 2017-05-19 | 2017-05-19 | One kind is used for two-way swept-frequency signal speedy carding process two-way Sweep Source |
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Citations (10)
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|---|---|---|---|---|
| US5130670A (en) * | 1991-08-01 | 1992-07-14 | Hewlett-Packard Company | Phase-locking circuit for swept synthesized source preferably having stability enhancement circuit |
| CN2258327Y (en) * | 1996-06-28 | 1997-07-23 | 清华大学 | High-resolution and broadband linear frequency-scanning signal resource |
| US20060114471A1 (en) * | 2004-11-29 | 2006-06-01 | Normand Cyr | Interferometric optical analyzer and method for measuring the linear response of an optical component |
| US20060164173A1 (en) * | 2002-08-06 | 2006-07-27 | Klein Robert H | Waveform lineariser |
| US20110216325A1 (en) * | 2007-01-10 | 2011-09-08 | Lightlab Imaging, Inc. | Methods and Apparatus for Swept-Source Optical Coherence Tomography |
| WO2014012180A1 (en) * | 2012-07-16 | 2014-01-23 | Nanowave Technologies Inc. | Ultra low phase noise signal source |
| CN103808993A (en) * | 2012-11-08 | 2014-05-21 | 姜韫英 | Multi-functional swept-frequency signal source |
| CN104378110A (en) * | 2013-08-15 | 2015-02-25 | 同方威视技术股份有限公司 | Frequency sweeping signal generating circuit |
| CN204216888U (en) * | 2014-11-25 | 2015-03-18 | 四川师范大学 | A kind of teaching radio receiver |
| CN205829606U (en) * | 2016-07-13 | 2016-12-21 | 贵州航天计量测试技术研究所 | A kind of based on DDS with the frequency synthesizer module of fractional frequency-division phase-locked loop |
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2017
- 2017-05-19 CN CN201710356543.0A patent/CN107222171A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5130670A (en) * | 1991-08-01 | 1992-07-14 | Hewlett-Packard Company | Phase-locking circuit for swept synthesized source preferably having stability enhancement circuit |
| CN2258327Y (en) * | 1996-06-28 | 1997-07-23 | 清华大学 | High-resolution and broadband linear frequency-scanning signal resource |
| US20060164173A1 (en) * | 2002-08-06 | 2006-07-27 | Klein Robert H | Waveform lineariser |
| US20060114471A1 (en) * | 2004-11-29 | 2006-06-01 | Normand Cyr | Interferometric optical analyzer and method for measuring the linear response of an optical component |
| US20110216325A1 (en) * | 2007-01-10 | 2011-09-08 | Lightlab Imaging, Inc. | Methods and Apparatus for Swept-Source Optical Coherence Tomography |
| WO2014012180A1 (en) * | 2012-07-16 | 2014-01-23 | Nanowave Technologies Inc. | Ultra low phase noise signal source |
| CN103808993A (en) * | 2012-11-08 | 2014-05-21 | 姜韫英 | Multi-functional swept-frequency signal source |
| CN104378110A (en) * | 2013-08-15 | 2015-02-25 | 同方威视技术股份有限公司 | Frequency sweeping signal generating circuit |
| CN204216888U (en) * | 2014-11-25 | 2015-03-18 | 四川师范大学 | A kind of teaching radio receiver |
| CN205829606U (en) * | 2016-07-13 | 2016-12-21 | 贵州航天计量测试技术研究所 | A kind of based on DDS with the frequency synthesizer module of fractional frequency-division phase-locked loop |
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Application publication date: 20170929 |
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