CN107863598A - A kind of TM moulds dielectric resonator - Google Patents
A kind of TM moulds dielectric resonator Download PDFInfo
- Publication number
- CN107863598A CN107863598A CN201711307422.3A CN201711307422A CN107863598A CN 107863598 A CN107863598 A CN 107863598A CN 201711307422 A CN201711307422 A CN 201711307422A CN 107863598 A CN107863598 A CN 107863598A
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- CN
- China
- Prior art keywords
- support member
- dielectric resonator
- pad
- cavity
- resonant rod
- 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
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of TM moulds dielectric resonator.It includes cavity and covers the cover plate being located on the cavity,Dielectric resonator is provided with cavity,Microstrip line,Circuit board,First support member and the second support member,First support member and the second support member are spaced and be vertically fixed on cavity bottom,Circuit board is vertically connected on the upper end of first support member and the second support member,And the cavity of at least one side opening is formed with the first support member and the second support member,Microstrip line is on circuit board,Dielectric resonator is set adjacent to cavity,Dielectric resonator includes tuning screw,Medium resonant rod and pad,Tuning screw is fixed on the cover board by tuning nut,Cavity bottom is provided with stopper slot,Pad is in stopper slot,The upper center of pad is provided with step,Medium resonant rod is provided with through hole vertically,Medium resonant rod is before pad and cover plate,Tuning screw is extending at least partially into through hole,In the step insertion through hole of pad.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 TM moulds dielectric resonator.
Background technology
In a communications device, the performance that the performance of local vibration source receives to signal has important influence.Local vibration source generally by
The local oscillator source chip or dielectric resonator of specific frequency produces.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 small volume, quality factor are high, tie
Structure is simple, low cost and other advantages, and reality is relatively broad in using.
However, dielectric resonator needs to meet low-loss and the requirement of low phase noise in actual 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 present invention solves the technical problem of provide a kind of TM moulds dielectric resonator, it is possible to increase quality factor.
In order to solve the above technical problems, one aspect of the present invention is：A kind of TM moulds dielectric resonator is provided,
Cover plate on the cavity is located at including cavity and lid, dielectric resonator, microstrip line, circuit board, the are provided with the cavity
One support member and the second support member, first support member and the second support member are spaced and are vertically fixed on the cavity bottom
In portion, the circuit board is vertically connected on the upper end of first support member and the second support member, and with first support member
The cavity of at least one side opening is formed with the second support member, the microstrip line is on the circuit board, the dielectric resonator
The neighbouring cavity is set, and the dielectric resonator includes tuning screw, medium resonant rod and pad, and the tuning screw passes through
Tuning nut is fixed on the cover plate, and the cavity bottom is provided with stopper slot, and the pad is described in the stopper slot
The upper center of pad is provided with step, and the medium resonant rod is provided with through hole vertically, and the medium resonant rod is located at the pad
Before piece and the cover plate, the upper end of the medium resonant rod abuts the lower surface of the cover plate, the tuning screw at least portion
Divide and stretch into the through hole, the lower end of the medium resonant rod abuts the pad, and the step insertion of the pad is described logical
In hole.
Preferably, first support member and the second support member 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 support member and the second support member.
Preferably, the stopper slot, the pad, the step and the through hole are circle.
Preferably, the pad is flexible, and conductive.
Preferably, the upper surface of the medium resonant rod and lower surface are equipped with short circuit metal version.
The beneficial effects of the invention are as follows：The situation of prior art is different from, the present invention is by setting two support members to prop up
Circuit board is supportted, two support members 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, and so, the electromagnetic wave below microstrip line can be coupled by cavity with dielectric resonator, 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.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of TM moulds dielectric resonator provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme 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, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
It is the cross section structure diagram of TM moulds dielectric resonator provided in an embodiment of the present invention refering to Fig. 1.The present invention is implemented
The TM moulds dielectric resonator of example includes cavity 10 and covers the cover plate 20 being located on cavity 10, and dielectric resonator is provided with cavity 10
30th, microstrip line 40, circuit board 50, the first support member 60 and the second support member 70.
First support member 60 and the second support member 70 are spaced and be vertically fixed on the bottom of cavity 10, and circuit board 50 hangs down
The direct-connected upper end for being connected on the first support member 60 and the second support member 70, and with the first support member 60 and the second support member 70 formed to
The cavity 51 of few one side opening, microstrip line 40 is on circuit board 50, and dielectric resonator 30 is set adjacent to cavity 51, dielectric resonance
Device 30 includes tuning screw 31, medium resonant rod 32 and pad 33, and tuning screw 31 is fixed on cover plate 20 by tuning nut 34
On, the bottom of cavity 10 is provided with stopper slot 11, and for pad 33 in stopper slot 11, the upper center of pad 33 is provided with step 331, is situated between
Matter resonant rod 32 is provided with through hole 321 vertically, and medium resonant rod 32 is located at before pad 33 and cover plate 20, medium resonant rod 32
Upper end abuts the lower surface of cover plate 20, and tuning screw 31 is extending at least partially into through hole 321, and the lower end of medium resonant rod 32 abuts
Pad 33, and the step 331 of pad 33 is embedded in through hole 321.
After being installed on due to dielectric resonator 30 in cavity 10, the upper end of medium resonant rod 32 abuts with cover plate 20, lower end
Abut, therefore can be not only solved due to cavity 10 caused by machining tolerance and the loose contact of dielectric resonator 30 with pad 33
Problem, but also medium resonant rod 32 can be carried out by pad 33 spacing, ensure medium resonant rod 32 using pad 33
In drastically stress electrical connection is remained in that with cover plate 20 and cavity 10.In the present embodiment, pad 33 is flexible, and has
It is conductive.So, in actual applications, using pad 33 can effectively release temperature circulation change when caused stress,
Thoroughly solve medium resonant rod 32 and differ that too caused greatly medium resonant rod 32 ruptures or what is be broken asks with the coefficient of expansion of cavity 10
Topic.
Microstrip line 40 can be formed on circuit board 50 using process for copper is covered.After microstrip line 40 is set, circuit board 50,
First support member 60, the second support member 70 and cavity 10 enclose the cavity 51 to form 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 is substantially reduced, thus the electromagnetic wave of the lower section of microstrip line 40 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 lifting dielectric oscillator.
In the present embodiment, the first support member 60 and the second support member 70 are located under the opposite end of circuit board 50 respectively
The width of square microstrip lines 40 is less than the spacing of the first support member 60 and the second support member 70.
In the present embodiment, the upper surface of medium resonant rod 32 and lower surface are equipped with short circuit metal plate 322.Due to medium
The both-end short circuit of resonant rod 32, thus can further improve quality factor, reduce loss, while have tuning range wide, warm
Spend good characteristic, small volume, high reliability.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of TM moulds dielectric resonator, it is characterised in that the cover plate being located at including cavity and lid on the cavity, the chamber
It is provided with dielectric resonator, microstrip line, circuit board, the first support member and the second support member, first support member and second in vivo
Support member is spaced and is vertically fixed on the cavity bottom, the circuit board be vertically connected on first support member and
The upper end of second support member, and the cavity of at least one side opening is formed with first support member and the second support member, it is described micro-
On the circuit board, the dielectric resonator is set band line adjacent to the cavity, and the dielectric resonator includes tuning spiral shell
Bar, medium resonant rod and pad, the tuning screw are fixed on the cover plate by tuning nut, and the cavity bottom is provided with
Stopper slot, for the pad in the stopper slot, the upper center of the pad is provided with step, and the medium resonant rod is along axle
To provided with through hole, before the pad and the cover plate, the upper end of the medium resonant rod abuts the medium resonant rod
The lower surface of the cover plate, the tuning screw are extending at least partially into the through hole, and the lower end of the medium resonant rod abuts
The pad, and the step of the pad is embedded in the through hole.
2. TM moulds dielectric resonator according to claim 1, it is characterised in that first support member and the second support member
It is located at the lower section of the circuit board opposite end respectively.
3. TM moulds dielectric resonator according to claim 1, it is characterised in that the width of the microstrip line is less than described the
The spacing of one support member and the second support member.
4. TM moulds dielectric resonator according to claim 1, it is characterised in that the stopper slot, the pad, described
Rank and the through hole are circle.
5. TM moulds dielectric resonator according to claim 1, it is characterised in that the pad is flexible, and has and lead
Electrically.
6. TM moulds dielectric resonator according to claim 1, it is characterised in that the upper surface of the medium resonant rod is with
End face is equipped with short circuit metal version.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307422.3A CN107863598A (en) | 2017-12-11 | 2017-12-11 | A kind of TM moulds dielectric resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307422.3A CN107863598A (en) | 2017-12-11 | 2017-12-11 | A kind of TM moulds dielectric resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107863598A true CN107863598A (en) | 2018-03-30 |
Family
ID=61705474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711307422.3A Pending CN107863598A (en) | 2017-12-11 | 2017-12-11 | A kind of TM moulds dielectric resonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863598A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921160A (en) * | 2019-03-21 | 2019-06-21 | 深圳市国人射频通信有限公司 | A kind of TM mould dielectric filter |
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 |
| CN205921064U (en) * | 2016-08-03 | 2017-02-01 | 武汉凡谷电子技术股份有限公司 | TM mould dielectric resonator and dielectric filter |
| CN207834549U (en) * | 2017-12-11 | 2018-09-07 | 四川九鼎智远知识产权运营有限公司 | A kind of TM moulds dielectric resonator |
-
2017
- 2017-12-11 CN CN201711307422.3A patent/CN107863598A/en active Pending
Patent 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 |
| CN205921064U (en) * | 2016-08-03 | 2017-02-01 | 武汉凡谷电子技术股份有限公司 | TM mould dielectric resonator and dielectric filter |
| CN207834549U (en) * | 2017-12-11 | 2018-09-07 | 四川九鼎智远知识产权运营有限公司 | A kind of TM moulds dielectric resonator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921160A (en) * | 2019-03-21 | 2019-06-21 | 深圳市国人射频通信有限公司 | A kind of TM mould dielectric filter |
| CN109921160B (en) * | 2019-03-21 | 2023-11-03 | 深圳国人科技股份有限公司 | TM mode dielectric filter |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180330 |
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| RJ01 | Rejection of invention patent application after publication |