CN207834548U - A kind of TM moulds resonant oscillator - Google Patents
A kind of TM moulds resonant oscillator Download PDFInfo
- Publication number
- CN207834548U CN207834548U CN201721720565.2U CN201721720565U CN207834548U CN 207834548 U CN207834548 U CN 207834548U CN 201721720565 U CN201721720565 U CN 201721720565U CN 207834548 U CN207834548 U CN 207834548U
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- cavity
- support element
- tuning
- rigid plate
- area
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Abstract
The utility model discloses a kind of TM moulds resonant oscillators.It includes cavity,Lid is located at the cover board on cavity and the rigid plate above cover board,Dielectric resonator is equipped in cavity,Microstrip line,Circuit board,First support element,Second support element and elastomeric pad,Two support elements are spaced and are vertically fixed on cavity bottom,Circuit board is vertically connected on the upper end of two support elements,And the cavity of at least one side opening is formed with the first support element and the second support element,Microstrip line is set on circuit board,Dielectric resonator is arranged adjacent to cavity,Cover board is equipped with the deformation area positioned at the tuning area at middle part and around tuning area,It tunes area and rigid plate is equipped with coaxial through-hole,Deformation area, which is equipped with, surrounds through-hole and the groove towards rigid plate,Dielectric resonator includes tuning screw and medium resonant rod,Tuning screw is worn in through-hole,Medium resonant rod is clamped between tuning area and cavity,Elastomeric pad is located between groove and rigid plate.The utility model can improve quality factor.
Description
Technical field
The utility model is related to technical field of communication equipment, more particularly to a kind of TM moulds 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 small by its, 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.
Utility model content
The utility model mainly solving the technical problems that provide a kind of TM moulds resonant oscillator, can improve quality because
Number.
In order to solve the above technical problems, the technical solution that the utility model uses is：A kind of TM moulds resonance is provided to shake
Device is swung, including cavity, lid are located at the cover board on the cavity and the rigid plate above the cover board, are set in the cavity
There are dielectric resonator, microstrip line, circuit board, the first support element, the second support element and elastomeric pad, first support element and
Two support elements are spaced and are vertically fixed on the cavity bottom, and the circuit board is vertically connected on first support element
With the upper end of the second support element, and the cavity of at least one side opening is formed with first support element and the second support element, it is described
Microstrip line is set on the circuit board, and the dielectric resonator is arranged adjacent to the cavity, and the cover board is equipped with positioned at middle part
Area and the deformation area around the tuning area are tuned, the tuning area and rigid plate are equipped with coaxial through-hole, and the deformation area is set
Having around the through-hole and towards the groove of the rigid plate, the dielectric resonator includes tuning screw and medium resonant rod,
The tuning screw is threaded through in the cover board and the through-hole of the rigid plate, and is fixed on the rigid plate by tuning nut
On, the both ends of the surface of the medium resonant rod are clamped between the tuning area and the cavity, and the elastomeric pad is located in institute
It states between groove and the rigid plate.
Preferably, first support element and the second support element are located at the lower section of the circuit board opposite end.
Preferably, the width of the microstrip line is less than the spacing of first support element and the second support element.
The utility model has the beneficial effects that：The case where being different from the prior art, the utility model is by being arranged two branch
Support member supports circuit board, and two support elements form the cavity of at least one side opening with circuit board, microstrip line is arranged on circuit board,
Dielectric resonator is arranged in neighbouring cavity, in this way, the electromagnetic wave below microstrip line can carry out coupling by cavity and dielectric resonator
It closes, to which the electromagnetic wave absorbed by pedestal reduces, 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 for the TM mould resonant oscillators that the utility model embodiment provides.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Refering to fig. 1, it is the schematic cross-sectional view for the TM mould resonant oscillators that the utility model embodiment provides.This practicality
The TM mould resonant oscillators of new embodiment include cavity 10, cover the cover board 20 being located on cavity 10 and set on 20 top of cover board
Rigid plate 21, dielectric resonator 30, microstrip line 40, circuit board 50, the first support element 60, the second support element are equipped in cavity 10
70 and elastomeric pad 80.
First support element 60 and the second support element 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 support element 60 and the second support element 70, and formed extremely with the first support element 60 and the second support element 70
The cavity 51 of few one side opening, microstrip line 40 are set on circuit board 50, and dielectric resonator 30 is arranged adjacent to cavity 51, and cover board 20 is set
There are the deformation area 202 positioned at the tuning area 201 at middle part and around tuning area 201, tuning area 201 and rigid plate 21 to be equipped with coaxial
Through-hole 203, deformation area 202 are equipped with around through-hole 203 and towards the groove of rigid plate 21 204, and dielectric resonator 30 includes tuning
Screw rod 31 and medium resonant rod 32, tuning screw 31 are threaded through in cover board 20 and the through-hole 203 of rigid plate 21, and by tuning spiral shell
Mother 33 is fixed in rigid plate 21, and the both ends of the surface of medium resonant rod 32 are clamped between tuning area 201 and cavity 10, elastomeric pad
80 are located between groove 204 and rigid plate 21.
Since deformation area 202 is equipped with groove 204, the thickness of the cover board 20 in deformation area 202 can be with very little, due to thickness
Small, the cover board 20 in deformation area 202 can deform upon.In practical applications, on the one hand, utilize 21 elasticity of compression gasket of rigid plate
80 so that cover board 20 deforms upon in deformation area 202, and cover board 20 is in close contact with 32 upper surface of medium resonant rod, on the other hand,
Cover board 20 and 32 contact site of medium resonant rod, that is, the thickness for tuning area 201 is big, hardly can deformation, it is ensured that cover board 20
It is contacted with the good face of 32 upper surface of medium resonant rod, avoids the formation of line contact.And further, even if in temperature change feelings
Under condition, by the variation of elastomeric pad 80, ensure that cover board 200 is contacted with the good face of medium resonant rod 32.
Microstrip line 40, which may be used, to be covered process for copper and is formed on circuit board 50.After microstrip line 40 is set, circuit board 50,
First support element 60, the second support element 70 and cavity 10 are enclosed the cavity 51 of at least one side opening.Not only due to cavity 51
For hollow structure, and at least one side is open, therefore cavity 51 can be made 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 support element 60 and the second support element 70 are located under 50 opposite end of circuit board
The width of square microstrip lines 40 is less than the spacing of the first support element 60 and the second support element 70.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (3)
1. a kind of TM moulds resonant oscillator, which is characterized in that including cavity, cover the cover board being located on the cavity and be set to institute
The rigid plate above cover board is stated, dielectric resonator, microstrip line, circuit board, the first support element, the second support are equipped in the cavity
Part and elastomeric pad, first support element and the second support element are spaced and be vertically fixed on the cavity bottom, institute
State the upper end that circuit board is vertically connected on first support element and the second support element, and with first support element and second
Support member forms the cavity of at least one side opening, and the microstrip line is set on the circuit board, and the dielectric resonator is neighbouring described
Cavity is arranged, and the cover board is equipped with the deformation area positioned at the tuning area at middle part and around the tuning area, the tuning Qu Hegang
Property plate be equipped with coaxial through-hole, the deformation area is equipped with around the through-hole and towards the groove of the rigid plate, the medium
Resonator includes tuning screw and medium resonant rod, and the tuning screw is threaded through the through-hole of the cover board and the rigid plate
It is interior, and be fixed in the rigid plate by tuning nut, the both ends of the surface of the medium resonant rod be clamped in the tuning area and
Between the cavity, the elastomeric pad is located between the groove and the rigid plate.
2. TM moulds resonant oscillator according to claim 1, which is characterized in that first support element and the second support element
It is located at the lower section of the circuit board opposite end.
3. TM moulds resonant oscillator according to claim 1, which is characterized in that the width of the microstrip line is less than described the
The spacing of one support element and the second support element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721720565.2U CN207834548U (en) | 2017-12-11 | 2017-12-11 | A kind of TM moulds resonant oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721720565.2U CN207834548U (en) | 2017-12-11 | 2017-12-11 | A kind of TM moulds resonant oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207834548U true CN207834548U (en) | 2018-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721720565.2U Expired - Fee Related CN207834548U (en) | 2017-12-11 | 2017-12-11 | A kind of TM moulds resonant oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207834548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978833A (en) * | 2017-12-11 | 2018-05-01 | 四川九鼎智远知识产权运营有限公司 | A kind of TM moulds resonant oscillator |
-
2017
- 2017-12-11 CN CN201721720565.2U patent/CN207834548U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978833A (en) * | 2017-12-11 | 2018-05-01 | 四川九鼎智远知识产权运营有限公司 | A kind of TM moulds resonant oscillator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20181211 |