CN208046572U - Multiple harmonic oscillator that is a kind of while exporting multiple Frequency points - Google Patents
Multiple harmonic oscillator that is a kind of while exporting multiple Frequency points Download PDFInfo
- Publication number
- CN208046572U CN208046572U CN201820221370.1U CN201820221370U CN208046572U CN 208046572 U CN208046572 U CN 208046572U CN 201820221370 U CN201820221370 U CN 201820221370U CN 208046572 U CN208046572 U CN 208046572U
- Authority
- CN
- China
- Prior art keywords
- capacitance
- branch
- inductance
- frequency point
- frequency
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 230000005611 electricity Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
The utility model discloses a kind of while exporting the multiple harmonic oscillators of multiple Frequency points, multiple harmonic oscillating circuit is amplified by amplifier including benchmark frequency point, after being vibrated by multiple harmonic oscillating circuit, the benchmark frequency point after multiple oscillation is divided into the roads N Frequency point being switched using RF, and by per the filter being arranged on the way, obtaining target frequency point.Benchmark frequency point (such as 100MHz) enters after amplifier (by capacitance C1, C2, C3, C4, inductance L1, L2, L3, resistance R1 and diode D1 compositions) multiple harmonic oscillating circuit, produce the seismic multiples harmonic wave of 100MHz, these harmonic waves are segmented into the roads N Frequency point by RF switches, then by obtaining our desired target frequency points after filter.The complexity of circuit can be adequately reduced in this way, saves product cost, reduce debugging difficulty, influencing each other between reduction electric elements.
Description
Technical field
The utility model is related to a kind of oscillating circuits, and in particular to multiple harmonic that is a kind of while exporting multiple Frequency points shakes
Swing device.
Background technology
It is more and more to the type demand of frequency source in various high frequency points frequency sources design at this stage.Meanwhile to a frequency source
Phase noise, volume and cost more stringent requirements are proposed.
In current point frequency source design, mainly obtained by two schemes：
The first is the benchmark frequency point (being usually 100MHz) for selecting high target, passes through N1 integer frequency and N2 integer
Frequency dividing, obtains desired frequency point.But the frequency point comparison rule that this method obtains, there is certain integral multiple with benchmark frequency point
Relationship, it is difficult to the changeable frequency point frequency source that frequency resolution reaches 1Hz is obtained, meanwhile, the frequency that the mode of direct frequency doubling is realized is close
Far-end noise all can be relatively high.The index of high phase place noise is gone for, rear end needs addition narrow band filter to be filtered.It is logical
Often, it in 100MHz narrow-band filterings below, can be realized by the crystal filter of high q-factor.And in the microwave of 300MHz or more
The narrow-band filtering to signal may be implemented in wave band, the sound sufacing of high q-factor.Country's SAW filter highest frequency energy at present
Accomplish 2.5GHz, therefore go for the point frequency source of the high phase place noise within the scope of 3GHz to 10GHz, should obtain first
2.5GHz frequencies below are obtained by filtering frequency multiplication later.But this filter volume is big, and it is of high cost, for different
Point frequency, needs to be customized, versatility is low.
Second scheme is the benchmark frequency point (being usually 100MHz) and a narrowband VCO for selecting high target, passes through monocycle
The mode of locking phase obtains.Phase-locked loop circuit is mainly by phase discriminator (PD), loop filter (LPF), voltage controlled oscillator (VCO) and meter
Modulus frequency divider (N) forms.The output signal of VCO is divided first through counter in circuit design, is input to phase discriminator.Phase discriminator
In also input reference signal, phase discriminator output move into the error signal of direct ratio with two kinds of signal phases simultaneously.LPF exports PD
Pulse error signal is converted to direct current signal, and send to the input terminal of VCO the output frequency for adjusting VCO, when the signal of frequency divider
When consistent with reference signal, VCO outputs are stablized.The point frequency that this method obtains, output frequency proximal end (within loop bandwidth)
It mutually makes an uproar and is determined by reference, distal end is mutually made an uproar (other than loop bandwidth) to be determined by VCO, and far-end noise can be than the noise of the first scheme
It is low.Deteriorate formula according to mutually making an uproar, phase noise is with the worsening of relations of 20lgN, therefore, for the point frequency source of high band, uses this
Kind method proximal end is difficult to obtain index of preferably mutually making an uproar, moreover, such scheme is limited to the bandwidth of narrowband VCO, is difficult to realize
The covering of full frequency band in 5GHz to 10GHz bandwidth increases circuit cost, together if the VCO in broadband is selected to generate high frequency points frequency
When result in waste of resources.
Utility model content
It is logical that technical problem to be solved in the utility model is that traditional frequency source frequency point mostly uses greatly some benchmark frequency point
It is obtained after crossing frequency multiplication, when going for that target frequency point frequency is very high or there are many frequency point, circuit structure will be very complicated, increases
Product cost and increase production debugging difficulty, and it is an object of the present invention to provide multiple harmonic that is a kind of while exporting multiple Frequency points
Oscillator solves the problem above-mentioned.
The utility model is achieved through the following technical solutions：
Multiple harmonic oscillator that is a kind of while exporting multiple Frequency points, including benchmark frequency point amplified by amplifier it is laggard
Enter multiple harmonic oscillating circuit, after being vibrated by multiple harmonic oscillating circuit, is switched the benchmark after multiple oscillation using RF
Frequency point is divided into the roads N Frequency point, and by per the filter being arranged on the way, obtaining target frequency point.Benchmark frequency point (such as
100MHz) enter after amplifier (by capacitance C1, C2, C3, C4, inductance L1, L2, L3, resistance R1 and diode D1 groups
At) multiple harmonic oscillating circuit, the seismic multiples harmonic wave of 100MHz is produced, these harmonic waves are segmented into the roads N by RF switches
Frequency point, then by obtaining our desired target frequency points after filter.The complexity of circuit can be adequately reduced in this way,
Product cost is saved, debugging difficulty, influencing each other between reduction electric elements are reduced.
Further, the multiple harmonic oscillating circuit includes capacitance C1, capacitance C2, inductance L3 and capacitance C4, the base
The main circuit that quasi- frequency point is formed after being sequentially connected in series by capacitance C1, capacitance C2, capacitance C4 and inductance L3 after being amplified by amplifier
It is transferred in RF switches.Main circuit forms primary oscillation, inductive drop and each capacitance voltage etc. by multiple capacitances and inductance
It is worth contrary sign, i.e. inductance capacitance absorbs the reactive power of equivalent contrary sign, and it is 0 to make the reactive power that circuit absorbs, electric field energy and magnetic
Field energy is all constantly changing, but this increases that and subtracts, and compensates mutually.
Further, the first branch is provided between the capacitance C1 and capacitance C2, capacitance C1 is accessed in first branch one end
Between capacitance C2, the other end is grounded, and inductance L1 is additionally provided in the first branch.By between capacitance C1 and capacitance C2
One branch is set, the inductance L1 being arranged on branch road can form a resonance again, can by change inductance L1 or
Change frequency and carries out frequency modulation.
Further, the second branch and third branch, the second branch are provided between the capacitance C2 and inductance L3
Between third branch one end access capacitance C2 and inductance L3, the other end is grounded respectively, and capacitance is provided in the second branch
C3, third branch road are provided with resistance R1 and inductance L2, and the inductance L2 connect with resistance R1, resistance R1 and ground terminal company
It connects.It is similar to the above-mentioned first branch, the second branch of setting and the effect of third branch also for forming resonance, by with
Main circuit coordinates, and forms resonance more than twice, the two branches can be by changing inductance L2 or resistance R1 to capacitance size
It is changed.
Further, the 4th branch, the 4th branch one end access electricity are provided between the inductance L3 and capacitance C4
Between feeling L3 and capacitance C4, other end ground connection, the 4th road is provided with diode D1.With above-mentioned first, second and third
Road is similar, and the diode D1 of the 4th road setting plays the role of being also to be adjusted capacitance size.
The utility model compared with prior art, has the following advantages and advantages：
1, the utility model is a kind of while exporting the multiple harmonic oscillator of multiple Frequency points, and circuit structure will be very simple
It is single, facilitate setting；
2, the utility model is a kind of while exporting the multiple harmonic oscillator of multiple Frequency points, reduces appliance component, section
About cost improves debugging efficiency.
Description of the drawings
Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the utility model circuit diagram.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figure 1, the utility model is a kind of while exporting the multiple harmonic oscillator of multiple Frequency points, it is a kind of while defeated
Go out the multiple harmonic oscillator of multiple Frequency points, including benchmark frequency point is amplified into multiple harmonic oscillation electricity by amplifier
Benchmark frequency point after multiple oscillation after being vibrated by multiple harmonic oscillating circuit, is divided into the roads N frequency by road being switched using RF
Point, and by per the filter being arranged on the way, obtaining target frequency point.Benchmark frequency point (such as 100MHz) is laggard by amplifier
Enter and (be made of capacitance C1, C2, C3, C4, inductance L1, L2, L3, resistance R1 and diode D1) multiple harmonic oscillating circuit, production
The seismic multiples harmonic wave of 100MHz is given birth to, these harmonic waves are segmented into the roads N Frequency point by RF switches, then by being obtained after filter
To our desired target frequency points.The complexity of circuit can be adequately reduced in this way, saves product cost, and it is difficult to reduce debugging
It spends, influencing each other between reduction electric elements.
The multiple harmonic oscillating circuit includes that capacitance C1, capacitance C2, inductance L3 and capacitance C4, the benchmark frequency point pass through
The main circuit formed after being sequentially connected in series by capacitance C1, capacitance C2, capacitance C4 and inductance L3 after amplifier amplification is transferred to RF and opens
Inside the Pass.Main circuit forms primary oscillation, inductive drop and each capacitance voltage equivalence contrary sign by multiple capacitances and inductance, i.e., electric
The reactive power for feeling capacitive absorption equivalence contrary sign, it is 0 to make the reactive power that circuit absorbs, and electric field energy and magnetic field energy be not all
Disconnected variation, but this increases that and subtracts, and compensates mutually.
Be provided with the first branch between the capacitance C1 and capacitance C2, first branch one end access capacitance C1 and capacitance C2 it
Between, the other end is grounded, and inductance L1 is additionally provided in the first branch.By the way that a branch is arranged between capacitance C1 and capacitance C2
Road, the inductance L1 being arranged on branch road can form a resonance again, can by change inductance L1 or change frequency into
Row frequency modulation.
The second branch and third branch, the second branch and third branch are provided between the capacitance C2 and inductance L3
One end is accessed between capacitance C2 and inductance L3, and the other end is grounded respectively, and capacitance C3, the third are provided in the second branch
Branch road is provided with resistance R1 and inductance L2, and the inductance L2 connects with resistance R1, and resistance R1 is connect with ground terminal.With it is above-mentioned
The first branch is similar, and the second branch of setting and the effect of third branch are also for resonance is formed, by coordinating with main circuit,
Resonance more than twice is formed, the two branches can be changed capacitance size by changing inductance L2 or resistance R1.
The 4th branch, the 4th branch one end access inductance L3 and capacitance are provided between the inductance L3 and capacitance C4
Between C4, other end ground connection, the 4th road is provided with diode D1.It is similar to the first, second and third above-mentioned branch, the
The diode D1 of four road settings plays the role of being also to be adjusted capacitance size.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (5)
1. multiple harmonic oscillator that is a kind of while exporting multiple Frequency points, which is characterized in that pass through amplification including benchmark frequency point
Device is amplified into multiple harmonic oscillating circuit, after being vibrated by multiple harmonic oscillating circuit, will repeatedly shake using RF switches
Benchmark frequency point after swinging is divided into the roads N Frequency point, and by per the filter being arranged on the way, obtaining target frequency point.
2. multiple harmonic oscillator that is according to claim 1 a kind of while exporting multiple Frequency points, which is characterized in that institute
It includes that capacitance C1, capacitance C2, inductance L3 and capacitance C4, the benchmark frequency point are amplified by amplifier to state multiple harmonic oscillating circuit
The main circuit formed after being sequentially connected in series afterwards by capacitance C1, capacitance C2, capacitance C4 and inductance L3 is transferred in RF switches.
3. multiple harmonic oscillator that is according to claim 2 a kind of while exporting multiple Frequency points, which is characterized in that institute
It states and is provided with the first branch between capacitance C1 and capacitance C2, first branch one end is accessed between capacitance C1 and capacitance C2, the other end
It is grounded, inductance L1 is additionally provided in the first branch.
4. multiple harmonic oscillator that is according to claim 2 a kind of while exporting multiple Frequency points, which is characterized in that institute
It states and is provided with the second branch and third branch between capacitance C2 and inductance L3, the second branch and third branch one end access electricity
Between holding C2 and inductance L3, the other end is grounded respectively, and capacitance C3 is provided in the second branch, and the third branch road is arranged
There are resistance R1 and inductance L2, the inductance L2 to connect with resistance R1, resistance R1 is connect with ground terminal.
5. multiple harmonic oscillator that is according to claim 2 a kind of while exporting multiple Frequency points, which is characterized in that institute
It states and is provided with the 4th branch between inductance L3 and capacitance C4, between the 4th branch one end access inductance L3 and capacitance C4, separately
One end is grounded, and the 4th road is provided with diode D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221370.1U CN208046572U (en) | 2018-02-07 | 2018-02-07 | Multiple harmonic oscillator that is a kind of while exporting multiple Frequency points |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221370.1U CN208046572U (en) | 2018-02-07 | 2018-02-07 | Multiple harmonic oscillator that is a kind of while exporting multiple Frequency points |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208046572U true CN208046572U (en) | 2018-11-02 |
Family
ID=63952496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820221370.1U Expired - Fee Related CN208046572U (en) | 2018-02-07 | 2018-02-07 | Multiple harmonic oscillator that is a kind of while exporting multiple Frequency points |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208046572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116679125A (en) * | 2023-06-07 | 2023-09-01 | 海安市综合检验检测中心 | Strain resistance measuring circuit device for generating measured signal by using multivibrator |
-
2018
- 2018-02-07 CN CN201820221370.1U patent/CN208046572U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116679125A (en) * | 2023-06-07 | 2023-09-01 | 海安市综合检验检测中心 | Strain resistance measuring circuit device for generating measured signal by using multivibrator |
| CN116679125B (en) * | 2023-06-07 | 2024-04-09 | 海安市综合检验检测中心 | Strain resistance measuring circuit device for generating measured signal by using multivibrator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104202048B (en) | Broadband totally-integrated phase-locked loop frequency synthesizer | |
| CN105897263B (en) | A kind of wideband voltage controlled oscillator and frequency synthesizer | |
| CN109450445A (en) | A kind of variable loop bandwidth frequency synthesizer, system and method | |
| CN107623492A (en) | A kind of high-frequency wideband voltage controlled oscillator and its operation method | |
| CN202949409U (en) | Dual VCO-based ultra-wide band frequency synthesizer | |
| CN1998132A (en) | XO-buffer robust to interference | |
| CN105049035A (en) | Multi-mode small low phase noise broadband dot frequency synthetic circuit and method | |
| CN203632644U (en) | Novel X wave band frequency synthesizer based on DDS and PLL | |
| CN207504824U (en) | A kind of high frequency crystal oscillator | |
| CN106374838A (en) | LC oscillator having automatic amplitude control function and used for FW-UWB transmitter | |
| CN108365846A (en) | A kind of current-mode phase-locked loop structures based on active inductance transformer | |
| CN208046572U (en) | Multiple harmonic oscillator that is a kind of while exporting multiple Frequency points | |
| CN104300977A (en) | Low-phase-noise high-speed frequency synthesizing system | |
| CN117081583B (en) | Frequency source for improving phase noise | |
| CN102931918B (en) | Frequency channel programmable LC_digitally controlled oscillator (DCO) circuit structure | |
| CN205647494U (en) | Ultra wide band low phase noise hangs down stray frequency synthesizer | |
| CN107896516A (en) | Voltage Waveform Shaping Oscillator | |
| CN105356878B (en) | A kind of implementation method and device of improved tricyclic wideband frequency synthesizer | |
| CN204836137U (en) | Frequency synthesizer | |
| CN208226994U (en) | A kind of thin stepping low noise frequency source in broadband | |
| CN202364176U (en) | Clock circuit | |
| CN104702279A (en) | Frequency synthesizer of phase-locked loop | |
| CN106059576B (en) | A kind of design method of twice frequency oscillator | |
| CN112671399B (en) | Ultra-wideband low-phase-noise frequency synthesizer | |
| CN104052465A (en) | High-frequency-point, high-stability, low-noise and constant-temperature crystal oscillator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |