CN108091976A - A kind of resonant oscillator - Google Patents
A kind of resonant oscillator Download PDFInfo
- Publication number
- CN108091976A CN108091976A CN201711308252.0A CN201711308252A CN108091976A CN 108091976 A CN108091976 A CN 108091976A CN 201711308252 A CN201711308252 A CN 201711308252A CN 108091976 A CN108091976 A CN 108091976A
- Authority
- CN
- China
- Prior art keywords
- supporting item
- cavity
- metal
- fixed
- circuit board
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/10—Dielectric resonators
-
- 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
- H03B1/00—Details
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- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
The invention discloses a kind of resonant oscillators.It includes cavity and covers the cover board being located on the cavity,Dielectric resonator is equipped in cavity,Microstrip line,Circuit board,First supporting item and the second supporting item,First supporting item and the second supporting item are spaced and be vertically fixed on cavity bottom,Circuit board is vertically connected on the upper end of first supporting item and the second supporting item,And the cavity of at least one side opening is formed with the first supporting item and the second supporting item,Microstrip line is arranged on circuit board,Dielectric resonator is set adjacent to cavity,Dielectric resonator includes tuning screw,Dielectric resonance disk,Metal resonance plate and metal resonant column,Tuning screw is fixed on the cover board by tuning nut,Metal resonant column is open-topped hollow barrel-type structure,The closing of metal resonant column is fixed on cavity bottom on one side,Metal resonance plate is fixed on the one side of metal resonant column opening,Dielectric resonance disk is fixed on metal resonance plate.The present invention can improve quality factor.
Description
Technical field
The present invention relates to technical field of communication equipment, more particularly to a kind of resonant oscillator.
Background technology
In a communications device, the performance that the performance of local vibration source receives signal has important influence.Local vibration source usually by
The local oscillator source chip or dielectric resonator of specific frequency generates.The structure of local oscillator source chip is simple, but expensive, and
External reference clock frequency is needed, therefore application field is smaller.And dielectric resonator is by its is small, quality factor are high, knot
The advantages that structure is simple, at low cost, reality are relatively broad in using.
However, dielectric resonator needs to meet low-loss and the requirement of low phase noise in practical applications, due to medium
The quality factor of resonator are inversely proportional with loss, and low quality factor can increase the phase noise of system, therefore to reduce damage
Consumption and phase noise, can only improve quality factor.But the quality of dielectric resonator is improved there is presently no good method
Factor.
The content of the invention
The invention mainly solves the technical problem of providing a kind of resonant oscillators, can improve quality factor.
In order to solve the above technical problems, one aspect of the present invention is：A kind of resonant oscillator is provided, including
Cavity and lid are located at cover board on the cavity, be equipped in the cavity dielectric resonator, microstrip line, circuit board, first
Support member and the second supporting item, first supporting item and the second supporting item are spaced and be vertically fixed on the cavity bottom
On, the circuit board is vertically connected on the upper end of first supporting item and the second supporting item, and with first supporting item and
Second supporting item forms the cavity of at least one side opening, and the microstrip line is arranged on the circuit board, and the dielectric resonator is adjacent
The nearly cavity is set, and the dielectric resonator includes tuning screw, dielectric resonance disk, metal resonance plate and metal resonant column,
The tuning screw is fixed on by tuning nut on the cover board, and the metal resonant column is open-topped hollow barrel-type knot
Structure, the metal resonant column closing are fixed on the cavity bottom on one side, and it is humorous that the metal resonance plate is fixed on the metal
The one side for column opening of shaking, the dielectric resonance disk are fixed on the metal resonance plate.
Preferably, first supporting item and the second supporting item are located at the lower section of the circuit board opposite end respectively.
Preferably, the width of the microstrip line is less than the spacing of first supporting item and the second supporting item.
The beneficial effects of the invention are as follows：The situation of the prior art is different from, the present invention is by setting two supporting items to prop up
Circuit board is supportted, two supporting items form the cavity of at least one side opening with circuit board, microstrip line is set on circuit board, neighbouring cavity
Dielectric resonator is set, in this way, the electromagnetic wave below microstrip line can be coupled by cavity with resonant oscillator, so as to quilt
The electromagnetic wave that pedestal absorbs reduces, and the loss of electromagnetic wave also just reduces, and then can improve quality factor.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of resonant oscillator provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
It is the schematic cross-sectional view of resonant oscillator provided in an embodiment of the present invention refering to Fig. 1.The embodiment of the present invention
Resonant oscillator includes cavity 10 and covers the cover board 20 being located on cavity 10, and dielectric resonator 30, micro-strip are equipped in cavity 10
Line 40, circuit board 50, the first supporting item 60 and the second supporting item 70.
First supporting item 60 and the second supporting item 70 are spaced and be vertically fixed on 10 bottom of cavity, and circuit board 50 hangs down
The direct-connected upper end for being connected on the first supporting item 60 and the second supporting item 70, and with the first supporting item 60 and the second supporting item 70 formed to
The cavity 51 of few one side opening, microstrip line 40 are arranged on circuit board 50, and dielectric resonator 30 is set adjacent to cavity 51, dielectric resonance
Device 30 includes tuning screw 31, dielectric resonance disk 32, metal resonance plate 33 and metal resonant column 34, and tuning screw 31 passes through tuning
Nut 35 is fixed on cover board 20, and metal resonant column 34 is open-topped hollow barrel-type structure, what metal resonant column 34 was closed
10 bottom of cavity is fixed on one side, and metal resonance plate 33 is fixed on the one side of the opening of metal resonant column 34, and dielectric resonance disk 32 is solid
It is scheduled on metal resonance plate 33.
After dielectric resonator 30 is installed in cavity 10, by tuning screw 31 inside cavity 10 to dielectric resonator 30
Frequency be tuned, principle is：Capacitance is formed between the upper surface of dielectric resonance disk 32 and the lower surface of cover board 20, is passed through
Adjust dielectric resonance disk 32 and the distance before cover board 20, thus it is possible to vary the capacitance size of the capacitance, and then change resonance and shake
Swing the frequency of device.Since the characteristic of forceful electric power field distribution being not present between dielectric resonance disk 32 and cover board 20, with reference to metal resonant column
Simplicity, the ease for operation of assembling of uniformity and the zero point realization of 34 materials, so as to promote the power capacity of resonant oscillator.
Microstrip line 40, which may be employed, to be covered process for copper and is formed on circuit board 50.After microstrip line 40 is set, circuit board 50,
First supporting item 60, the second supporting item 70 and cavity 10 are enclosed the cavity 51 of at least one side opening.Due to cavity 51 not only
For hollow structure, and at least one side opening, therefore cavity 51 can be caused to be communicated with outside, the damage that electromagnetic wave passes through cavity 51
Consumption substantially reduces, thus the electromagnetic wave of 40 lower section of microstrip line can be coupled by cavity 51 with dielectric resonator 30, also
It is to say, is reduced by the electromagnetic wave that cavity 10 absorbs, the loss of electromagnetic wave also just reduces, and then can improve quality factor,
Reduce phase noise, the final performance for promoting dielectric oscillator.
In the present embodiment, the first supporting item 60 and the second supporting item 70 are located under 50 opposite end of circuit board respectively
The width of square microstrip lines 40 is less than the spacing of the first supporting item 60 and the second supporting item 70.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (3)
1. a kind of resonant oscillator, which is characterized in that including cavity and the cover board being located on the cavity is covered, in the cavity
Equipped with dielectric resonator, microstrip line, circuit board, the first supporting item and the second supporting item, first supporting item and the second support
Part is spaced and is vertically fixed on the cavity bottom, and the circuit board is vertically connected on first supporting item and second
The upper end of supporting item, and form with first supporting item and the second supporting item the cavity of at least one side opening, the microstrip line
On the circuit board, the dielectric resonator is set adjacent to the cavity, and the dielectric resonator includes tuning screw, is situated between
Matter resonance plate, metal resonance plate and metal resonant column, the tuning screw is fixed on by tuning nut on the cover board, described
Metal resonant column is open-topped hollow barrel-type structure, and the metal resonant column closing is fixed on the cavity bottom on one side
Portion, the metal resonance plate are fixed on the one side of the metal resonant column opening, and the dielectric resonance disk is fixed on the metal
On resonance plate.
2. resonant oscillator according to claim 1, which is characterized in that first supporting item and the second supporting item difference
Positioned at the lower section of the circuit board opposite end.
3. resonant oscillator according to claim 1, which is characterized in that the width of the microstrip line is less than described first
The spacing of support member and the second supporting item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308252.0A CN108091976A (en) | 2017-12-11 | 2017-12-11 | A kind of resonant oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308252.0A CN108091976A (en) | 2017-12-11 | 2017-12-11 | A kind of resonant oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108091976A true CN108091976A (en) | 2018-05-29 |
Family
ID=62174574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711308252.0A Pending CN108091976A (en) | 2017-12-11 | 2017-12-11 | A kind of resonant oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108091976A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059499A (en) * | 2016-07-20 | 2016-10-26 | 深圳市华讯星通讯有限公司 | Dielectric resonator oscillator |
| CN107275729A (en) * | 2016-04-08 | 2017-10-20 | 中兴通讯股份有限公司 | The assembly method of resonator, wave filter and resonator |
| CN207719382U (en) * | 2017-12-11 | 2018-08-10 | 四川九鼎智远知识产权运营有限公司 | A kind of resonant oscillator |
-
2017
- 2017-12-11 CN CN201711308252.0A patent/CN108091976A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275729A (en) * | 2016-04-08 | 2017-10-20 | 中兴通讯股份有限公司 | The assembly method of resonator, wave filter and resonator |
| CN106059499A (en) * | 2016-07-20 | 2016-10-26 | 深圳市华讯星通讯有限公司 | Dielectric resonator oscillator |
| CN207719382U (en) * | 2017-12-11 | 2018-08-10 | 四川九鼎智远知识产权运营有限公司 | A kind of resonant oscillator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180529 |