CN105379113A - Method and apparatus - Google Patents
Method and apparatus Download PDFInfo
- Publication number
- CN105379113A CN105379113A CN201380076260.0A CN201380076260A CN105379113A CN 105379113 A CN105379113 A CN 105379113A CN 201380076260 A CN201380076260 A CN 201380076260A CN 105379113 A CN105379113 A CN 105379113A
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- Prior art keywords
- resonator
- perforate
- securing member
- shell
- attachment part
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Classifications
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- 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
Abstract
A method and apparatus comprising: at least one resonating portion; and at least one attachment portion shaped to engage with at least one fastener.
Description
Technical field
The disclosure relates to method and apparatus, and particularly but the method and apparatus related to nonexclusively for front-end filtering.
Background technology
Ceramic resonator can produce vibration at characteristic frequency place.Generally, when voltage is put on resonator, provide the oscillator signal at characteristic frequency place.
The resonance frequency of ceramic resonator can depend on the shape of the substrate of resonator and form the material of resonator.In order to control the resonance frequency of resonator, tuning screw can be used to regulate the resonance frequency of resonator.
Resonator may be used in the filter in communication system, and its signal being configured to receive different frequency place also selects the signal with characteristic frequency, and refuses all signals at other frequency place.
Summary of the invention
According to first aspect, provide a kind of resonator, comprising: at least one resonance portion; And be configured as at least one attachment part engaged with at least one securing member.
The profile (profile) of described attachment part can comprise following at least one: flush portion; Stepped portion; Sweep; Sloping portion; Linear segment; Non-linear partial; And layered portion.At least one attachment part can comprise at least one perforate.
At least one perforate can be configured to receive at least one securing member described.At least one resonance portion can be tubulose.At least one attachment part can be positioned at described tubulose resonance portion.
The profile of at least one resonance portion described can be following at least one: cylindrical, cube, polygon, ellipse, spherical, prismatic or irregular.Resonator can be formed by least one in pottery, metal resonator material.Perforate can extend through described attachment part.
According to second aspect, provide a kind of shell, comprising: at least one wall, it comprises at least one perforate being configured to receive securing member.
At least one perforate can extend partially through at least one wall described.The profile of at least one perforate described can be following in one: flush, ladder, bending, that tilt, linear, nonlinear, layering with threaded (tapped).
According to the third aspect, provide a kind of securing member, it is configured to engage with the perforate in the attachment part of resonator and the wall of shell.
Securing member can be following in one: screw; Nail; Wedge; Pin; Rivet; Connector or fixture.The profile of described securing member can be determined by the profile of at least one in described resonator and described shell.Securing member can be engaged with described attachment part and described perforate by least one in following: interference fit (interferencefit); Frictional fit (frictionfit); Threaded engagement (screwfit); Welding coordinates (solderfreefit); Machinery coordinates (mechanicalfit); (heatfreefit) is coordinated without heat; And dry fit (dryfit).Securing member can be formed by dielectric substance.
According to fourth aspect, provide a kind of filter, comprising: resonator, it comprises at least one resonance portion and is configured as at least one attachment part engaged with at least one securing member; Shell, it comprises at least one wall comprising at least one perforate being configured to receive described securing member; And securing member, be configured to engage with the perforate in the attachment part of resonator and the wall of shell.
At least one perforate of described resonator and at least one perforate of shell can be attached with fastener alignment.The profile of described attachment part can comprise following at least one: flush portion; Stepped portion; Sweep; Sloping portion; Linear segment; Non-linear partial; And layered portion.At least one attachment part can comprise at least one perforate.At least one perforate can be configured to receive at least one securing member described.
At least one resonance portion can be tubulose.At least one attachment part can be positioned at described tubulose resonance portion.
The profile of at least one resonance portion described can be following at least one: cylindrical, cube, polygon, oval, spherical, prismatic or irregular.Resonator can be formed by least one in pottery, metal resonator material.Perforate can extend through described attachment part.At least one perforate can extend partially through at least one wall described.The profile of at least one perforate described can be following in one: flush; Ladder; Bend; Tilt; Linear; Nonlinear; Layering; And it is threaded.
Securing member can be following in one: screw; Nail; Wedge; Pin; Rivet; Connector or fixture.The profile of described securing member can be determined by the profile of at least one in described resonator and described shell.Securing member can be engaged with described attachment part and described perforate by least one in following: interference fit; Frictional fit; Threaded engagement; Welding coordinates; Machinery coordinates; Coordinate without heat; And dry fit.Securing member can be formed by dielectric substance.Securing member can be screwed onto in described shell.
Filter can also comprise the dielectric layer be arranged between described resonator and described securing member.
According to the 5th aspect, provide a kind of method manufacturing filter, comprising: at least one perforate in shell is aimed at at least one perforate in resonator; And by means of securing member, described housing openings is fastened to described resonator perforate.
The method can also comprise: before described housing openings is fastened to described resonator perforate, between described housing openings and described securing member, arrange dielectric layer.Described securing member is screwed in described shell by fastening can comprising.At least one perforate of described resonator and at least one perforate of shell can be attached with fastener alignment.
The profile of described attachment part can comprise following at least one: flush portion; Stepped portion; Sweep; Sloping portion; Linear segment; Non-linear partial; And layered portion.
At least one attachment part can comprise at least one perforate.At least one perforate can be configured to receive at least one securing member described.At least one resonance portion can be tubulose.At least one attachment part can be positioned at described tubulose resonance portion.
The profile of at least one resonance portion described can be following at least one: cylindrical, cube, polygon, ellipse, spherical, prismatic or irregular.
Resonator can be formed by least one in pottery, metal resonator material.Perforate can extend through described attachment part.
At least one perforate can extend partially through at least one wall described.The profile of at least one perforate described can be following in one: flush; Ladder; Bend; Tilt; Linear; Nonlinear; Layering; And it is threaded.
Securing member can be following in one: screw; Nail; Wedge; Pin; Rivet; Connector or fixture.The profile of described securing member can be determined by the profile of at least one in described resonator and described shell.Securing member can be engaged with described attachment part and described perforate by least one in following: interference fit; Frictional fit; Threaded engagement; Welding coordinates; Machinery coordinates; Coordinate without heat; And dry fit.Securing member can be formed by dielectric substance.Filter can also comprise the dielectric layer be arranged between described resonator and described securing member.Securing member can be screwed onto in described shell.
According to the 6th aspect, provide a kind of external member (kit) of the parts for filter, comprising: resonator; Shell; And securing member, wherein said resonator can be attached to described shell by means of described securing member.
At least one perforate of described resonator and at least one perforate of shell can be attached with fastener alignment.
The profile of described attachment part can comprise following at least one: flush portion; Stepped portion; Sweep; Sloping portion; Linear segment; Non-linear partial; And layered portion.At least one attachment part can comprise at least one perforate.At least one perforate can be configured to receive at least one securing member described.At least one resonance portion can be tubulose.At least one attachment part can be positioned at described tubulose resonance portion.The profile of at least one resonance portion described can be following at least one: cylindrical, cube, polygon, ellipse, spherical, prismatic or irregular.
Resonator can be formed by least one in pottery, metal resonator material.Perforate can extend through described attachment part.
At least one perforate can extend partially through at least one wall described.
The profile of at least one perforate described can be following in one: flush; Ladder; Bend; Tilt; Linear; Nonlinear; Layering; And it is threaded.
Securing member can be following in one: screw; Nail; Wedge; Pin; Rivet; Connector or fixture.The profile of described securing member can be determined by the profile of at least one in described resonator and described shell.Securing member can be engaged with described attachment part and described perforate by least one in following: interference fit; Frictional fit; Threaded engagement; Welding coordinates; Machinery coordinates; Coordinate without heat; And dry fit.Securing member can be formed by dielectric substance.Securing member can be screwed onto in described shell.
Filter can also comprise the dielectric layer be arranged between described resonator and described securing member.
According to the 7th aspect, provide a kind of resonator, comprising: at least one resonant member; And at least one attachment members for engaging with at least one securing member.
The profile of described attachment members can comprise following at least one: flush portion; Stepped portion; Sweep; Sloping portion; Linear segment; Non-linear partial; And layered portion.
At least one attachment members can comprise at least one apertured member.At least one apertured member may be used for receiving at least one securing member described.
At least one resonant member can be tubulose.At least one attachment members can be positioned at described tubulose resonance portion.The profile of at least one resonant member described can be following at least one: cylindrical, cube, polygon, ellipse, spherical, prismatic or irregular.Apertured member can extend through described attachment members.Resonator can be formed by least one in pottery, metal resonator material.
According to eighth aspect, provide a kind of casing component, comprising: at least one wall, it comprises at least one apertured member for receiving securing member.
At least one apertured member can extend partially through at least one wall described.The profile of at least one apertured member described can be following in one: flush; Ladder; Bend; Tilt; Linear; Nonlinear; Layering; And it is threaded.
According to the 9th aspect, provide a kind of clamp structure for engaging with the apertured member in the attachment members of resonator and the wall of shell.
Clamp structure can be following in one: screw; Nail; Wedge; Pin; Rivet; Connector or fixture.The profile of described clamp structure can be determined by the profile of at least one in described resonator and described shell.Clamp structure can be engaged with described attachment part and described apertured member by least one in following: interference fit; Frictional fit; Threaded engagement; Welding coordinates; Machinery coordinates; Coordinate without heat; And dry fit.Clamp structure can be formed by dielectric substance.
According to the tenth aspect, provide a kind of filter, comprising: resonator, it comprises at least one resonant member and at least one attachment members for engaging with at least one clamp structure; Shell, it comprises at least one wall of at least one apertured member comprised for receiving described clamp structure; And clamp structure, for engaging with the apertured member in the attachment members of resonator and the wall of shell.
At least one attachment members can comprise at least one apertured member.At least one apertured member of described resonator and at least one apertured member of shell can be aimed at clamp structure and be attached.The profile of described attachment members can comprise following at least one: flush portion; Stepped portion; Sweep; Sloping portion; Linear segment; Non-linear partial; And layered portion.At least one apertured member can receive at least one clamp structure described.At least one resonant member can be tubulose.At least one attachment members can be positioned at described tubulose resonance portion.
The profile of at least one resonant member described can be following at least one: cylindrical, cube, polygon, ellipse, spherical, prismatic or irregular.
Resonator can be formed by least one in pottery, metal resonator material.Apertured member can extend through described attachment members.
At least one apertured member can extend partially through at least one wall described.The profile of at least one apertured member described can be following in one: flush; Ladder; Bend; Tilt; Linear; Nonlinear; Layering; And it is threaded.
Clamp structure can be following in one: screw; Nail; Wedge; Pin; Rivet; Connector or fixture.The profile of described clamp structure can be determined by the profile of at least one in described resonator and described shell.Clamp structure can be engaged with described attachment members and described apertured member by least one in following: interference fit; Frictional fit; Threaded engagement; Welding coordinates; Machinery coordinates; Coordinate without heat; And dry fit.Clamp structure can be formed by dielectric substance.Filter can also comprise the dielectric component be arranged between described resonator and described clamp structure.Clamp structure can be screwed onto in described shell.
Should understand, in the feature discussed in any one at least any one can use in combination with one or more other side.
Should understand, any feature of any aspect can combine with any further feature of any other side.
Accompanying drawing explanation
Now the mode by means of only example in further detail embodiment is described with reference to following example and accompanying drawing, in the drawing:
Figure 1A and 1B shows the shell of fixing resonance device wherein;
The difference that Fig. 2 A to 2D shows according to the resonator in the shell of some embodiments is installed; And
Fig. 3 A to 3C shows resonator differently contoured according to some embodiments.
Similar Reference numeral runs through description and accompanying drawing refers to element.
Embodiment
Figure 1A shows and comprises the filter that restriction wherein provides the shell 100 of the cavity 106 of ceramic resonator 104.Sidewall and the top of ceramic resonator and shell are separated.The top-supported tuning screw 102 of shell, the resonance frequency of its Position Control resonator.Ceramic resonator 104 uses the welding point 108 at the bottom place of shell to be fixed to shell 100.
When voltage is put on ceramic resonator, the magnetic distribution in resonator will carry out resonance with AD HOC.Two or more resonators that some filters configure with can comprising cascade, this can allow to transmit the signal wanted and refuse undesired signal.
Relatively not good enough thermal conduction characteristic for making the pottery of resonator may mean that ceramic resonator must use the method (such as gas phase welding) of the base of heating ceramic resonator and shell simultaneously to weld, to avoid making ceramic resonator break during manufacture process.If ceramic resonator breaks due to the heat created by welding process, then may need to abandon whole filter due to the position of the structure resonator of filter.
The difference of Figure 1B and Figure 1A is, ceramic resonator 104 is connected to hold-down screw 110 by welding point 108.Ceramic resonator 104 is attached to the base 112 of shell 100 by hold-down screw 110 via the perforate 114 in the base 112 of shell 100.This makes ceramic resonator 104 can receive hold-down screw 110 using as subassemblies by prewelding, and then it can be attached or be coupled in shell.
Design shown in Figure 1B can not be subject to the impact of the heat in welding process, this is because resonator is not welded direct to shell.But this fixing means requires ceramic resonator 104 to be welded to hold-down screw 110 before hold-down screw is attached to shell 100 using as subassemblies.Thus, ceramic resonator 104 and hold-down screw 110 may also need simultaneously by heating and cooling.Hold-down screw 110 can have the thermal coefficient of expansion substantially the same with ceramic resonator 104, to keep connection reliability at different temperatures.
Fig. 2 A shows the filter comprising the shell 200 limiting cavity 206 according to some embodiments.Tuning screw 202 is provided at the top place of shell.The base of shell 200 has the perforate 214 extended at least in part in base.In certain embodiments, perforate extends through the whole thickness of base.In other embodiments, perforate can extend only through the part road of base.
Ceramic resonator 204 is provided in the cavity limited by shell.Ceramic resonator comprises the hollow tube with inwall 220 and outer wall 222.The outer wall 222 of pipe is cylindrical substantially.Inwall 220 has at least one stepped portion substantially.In embodiment in fig. 2, there are two attachment part 216a and b, they are inside stepped portion.Stepped portion 216a and b is arranged to the layer or the insert (insert) that receive dielectric substance 212.
Dielectric substance 212 in the embodiment of Fig. 2 A is generally the tubulose with inwall 211b and outer wall 211a.Inwall is generally cylindrical.Outer wall is generally have outward extending flange or projection 217 at one end cylindrical.Projection 217 is arranged to be supported by the first stepped portion 216a.End away from the dielectric substance of flange 217 is arranged to be supported by the second stepped portion 216b.Second stepped portion 216b can than the longitudinal axis 223 of the first stepped portion 216a closer to pipe.
Securing member 210 has flange 209a and shank 209b.Securing member 210 is supported by dielectric substance 212.Flange 209a is by the surface bearing of the flange 217 of dielectric substance, and described surface is relative with that surface of being supported by stepped portion 216a.In certain embodiments, securing member 210 has T-shaped shape.
Fig. 2 B shows the filter according to some embodiments.The difference of Fig. 2 B and Fig. 2 A is, resonator 204 is included in two attachment part 216a and 216b of outer wall 222 outside of resonator 204.Each of attachment part 216a, 216b comprises the perforate 214 being configured to receive corresponding dielectric component 212 and securing member 210.The difference of Fig. 2 B and Fig. 2 A is also, the base of shell 200 comprises two perforates 214.
Fig. 2 C shows the other filter according to some embodiments.The difference of Fig. 2 C and Fig. 2 B is, attachment part 216a and 216b does not comprise perforate, but dielectric substance 212 and securing member 210 are configured to engage with the stepped end of each of attachment part 216a and 216b in the mode similar with the mode of Fig. 2 A.In certain embodiments, the profile of securing member 210 is L shape.
Fig. 2 D shows the other filter according to some embodiments.The difference of Fig. 2 D and Fig. 2 A is, attachment part 216a and 216b does not comprise stepped portion.Instead, attachment part be flush and with resonator 204 integration, inner and outer wall 211a, 211b dielectric substance 212 has straight profile, and securing member 210 has shank 209b and do not have flange.
To understand, Fig. 2 A, the element of each in 2B, 2C and 2D can combine.
As the layout as shown in about Figure 1B, perforate 214 may be provided in the base of shell, and only partly and do not extend completely through base, and the web of securing member 210 (web) is received in perforate 214 at least in part in this perforate.
In certain embodiments, securing member 210 can be any securing member that ceramic resonator 204 and dielectric substance 212 can be set firmly the base of shell 200, such as screw, nail, wedge, pin, rivet, connector or fixture.
In certain embodiments, the shape of hole and lip (lip) may affect the shape of securing member.
In certain embodiments, securing member can be formed by metal material, and dielectric substance can be configured to make ceramic resonator and securing member electric insulation.
In certain embodiments, securing member can be formed by dielectric substance at least in part.In certain embodiments, dielectric layer or coating can be provided on securing member.
Fig. 3 A, B and C show the cross section of the pipe of some interchangeable ceramic resonators.
These embodiments each in, provide single stepped portion.But should understand, one or more in the size of stepped portion and position can change.
Should understand, in other embodiments, all pipes as seen in figs. 3 a-3d can be modified as has two or more stepped portion.In figure 3 a, the inner surface of ceramic resonator 204 and outer surface are straight and about parallel to each other, wherein stepped portion provides the change from large diameter to less internal diameter.The embodiment of all embodiments as shown in fig. 3 can be suitable for selecting high-frequency signal, such as, have those signals of the frequency of about more than 2600MHz.
In figure 3b, the inwall of resonator 204 is generally straight, and wherein stepped portion provides the change from large diameter to less internal diameter.The outer wall of resonator has the stepped portion 402 of the change provided between larger external diameter and less external diameter.Stepped portion 402 may be provided in the about halfway along pipe.
The embodiment of all embodiments as shown in Figure 3 B can be suitable for selecting intermediate-freuqncy signal, such as, have those signals of the frequency about between 900MHz and 2600MHz.
In certain embodiments, the part with the pipe of larger external diameter may be provided in the section place different from the part of the pipe with less internal diameter.One or more in these different sections can be end section.
In certain embodiments, more than one stepped portion can be provided.
In fig. 3 c, the inwall of resonator 204 is generally straight, and wherein stepped portion provides the change from large diameter to less internal diameter.The outer wall of resonator is generally straight and has flange 404 in the end of the pipe relative with the base of shell.
The embodiment of all embodiments as shown in Figure 3 C can be suitable for selecting low frequency signal, such as, have those signals of the frequency of about below 900MHz.
In certain embodiments, the size of flange 404 and/or stepped portion 402, shape and position can be determined based on the frequency of the signal that will select.
Pipe can have any type of rule or irregular cross section, such as ellipse, circle, polygon, cube or spherical.
The inner and outer wall of pipe can have any type of shape, such as the regular shape of such as prismatic, cylindrical, cube and so on, or has the irregularly shaped of indefinite interior cross section and/or outer cross section.
In certain embodiments, hole can be shoulder hole as shown in Figures 2 and 3.In certain embodiments, the profile in hole can be bending, or changes linearly or non-linearly.
In certain embodiments, all or part of resonator can be formed by any applicable resonant material, such as pottery, metal or crystal.Ceramic resonator can use the high stability pottery of such as lead zirconate titanate and so on to manufacture.But should understand, in other embodiments, can additionally or alternatively use different potteries.
In certain embodiments, resonator can comprise one or more arm or branch.One or more arm or branch can be solid or hollow.
In certain embodiments, the shape of perforate, securing member terminal pad (land) at least one stepped portion can be selected depending therefromly.
Some embodiments can make ceramic resonator can be attached to the base of shell when not welding.
In certain embodiments, perforate can extend through the bottom of shell.
For convenience's sake, term top, bottom and sidepiece has been used.Should understand, in use, the top of shell can be the bottom of shell or the sidepiece of shell.Can be like this equally for top and sidepiece.
In certain embodiments, filter can comprise at least one resonator in the enclosure.
Some embodiments can provide the ceramic resonator that can operate under the E mode selected by least one.
Some embodiments can be provided for the dry method when not needing to weld, resonator being attached to shell.
Some embodiments can be provided for resonator to be attached to shell without thermal means.
Some embodiments can provide the ceramic resonator with high q-factor.
Some embodiments can be water-fast or waterproof.
Description before has provided the complete and abundant description of exemplary embodiment of the present invention by the exemplary and mode of non-limiting example.But when reading with claims by reference to the accompanying drawings, various amendment and adaptation can become obvious in view of above description to various equivalent modifications.But, instruction of the present invention all like this with similar amendment all by the scope of the present invention that still drops on defined in claims.In fact, exist comprise before the other embodiment of any one or more combination of other embodiment discussed.
Claims (25)
1. a resonator, comprising:
At least one resonance portion; And
Be configured as at least one attachment part engaged with at least one securing member.
2. resonator as claimed in claim 1, the profile of wherein said attachment part comprise following at least one: flush portion; Stepped portion; Sweep; Sloping portion; Linear segment; Non-linear partial; And layered portion.
3. the resonator as described in any one in aforementioned claim, at least one attachment part wherein said comprises at least one perforate.
4. resonator as claimed in claim 3, at least one perforate wherein said is configured to receive at least one securing member described.
5. the resonator as described in any one in aforementioned claim, at least one resonance portion wherein said is tubulose.
6. resonator as claimed in claim 4, at least one attachment part wherein said is positioned at described tubulose resonance portion.
7. the resonator as described in any one in aforementioned claim, the profile of at least one resonance portion wherein said be following at least one: cylindrical, cube, polygon, ellipse, spherical, prismatic or irregular.
8. the resonator as described in any one in aforementioned claim, wherein said resonator is formed by least one in pottery, metal resonator material.
9. the resonator as described in any one in aforementioned claim, wherein said perforate extends through described attachment part.
10. a shell, comprising:
At least one wall, it comprises at least one perforate being configured to receive securing member.
11. shells as claimed in claim 10, at least one perforate wherein said extends partially through at least one wall described.
12. shells as described in claim 10 or 11, the profile of at least one perforate wherein said be following in one: flush; Ladder; Bend; Tilt; Linear; Nonlinear; Layering; And it is threaded.
13. 1 kinds of securing members, it is configured to engage with the perforate in the attachment part of resonator and the wall of shell.
14. securing members as claimed in claim 11, wherein said securing member be following in one: screw; Nail; Wedge; Pin; Rivet; Connector or fixture.
15. securing members as described in claim 13 or 14, the profile of wherein said securing member is determined by the profile of at least one in described resonator and described shell.
16. securing members as described in claim 13,14 or 15, wherein said securing member is engaged with described attachment part and described perforate by least one in following: interference fit; Frictional fit; Threaded engagement; Welding coordinates; Machinery coordinates; Coordinate without heat; And dry fit.
17. 1 kinds of filters, comprising:
As resonator required for protection in any one in claim 1 to 9;
As shell required for protection in any one in claim 10 to 12; And
As securing member required for protection in any one in claim 13 to 16.
18. filters as claimed in claim 17, at least one perforate of wherein said resonator and at least one perforate of shell and fastener alignment are also attached.
19. filters as described in claim 17 or 18, wherein said securing member is formed by dielectric substance.
20. filters as described in claim 17 or 18, also comprise the dielectric layer be arranged between described resonator and described securing member.
21. filters as described in any one in aforementioned claim, wherein said securing member is screwed onto in described shell.
22. 1 kinds of methods manufacturing filter, comprising:
At least one perforate in shell is aimed at at least one perforate in resonator; And
By means of securing member, described housing openings is fastened to described resonator perforate.
23. methods as claimed in claim 22, also comprise:
Before described housing openings is fastened to described resonator perforate, dielectric layer is set between described housing openings and described securing member.
24. methods as described in claim 22 or 23, described securing member is screwed in described shell by wherein said fastening comprising.
25. 1 kinds, for the external member of the parts of filter, comprising:
Resonator;
Shell; And
Securing member, wherein
Described resonator can be attached to described shell by means of described securing member.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/075061 WO2014176770A1 (en) | 2013-05-02 | 2013-05-02 | Method and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105379113A true CN105379113A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380076260.0A Pending CN105379113A (en) | 2013-05-02 | 2013-05-02 | Method and apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105379113A (en) |
| WO (1) | WO2014176770A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002330010A (en) * | 2001-04-27 | 2002-11-15 | Murata Mfg Co Ltd | Dielectric resonator device, filter, duplexer, and communication equipment |
| US8026120B2 (en) * | 2009-01-14 | 2011-09-27 | Seiko Epson Corporation | Method of manufacturing MEMS device |
| CN102780465A (en) * | 2011-03-07 | 2012-11-14 | 精工电子有限公司 | Method and apparatus of manufacturing piezoelectric vibrating reed, piezoelectric vibration reed, piezoelectric vibrator, oscillator, electronic apparatus and radio-controlled timepiece |
| CN102938490A (en) * | 2012-11-21 | 2013-02-20 | 江苏贝孚德通讯科技股份有限公司 | Medium TM mode single-ended short circuit resonator |
-
2013
- 2013-05-02 WO PCT/CN2013/075061 patent/WO2014176770A1/en active Application Filing
- 2013-05-02 CN CN201380076260.0A patent/CN105379113A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002330010A (en) * | 2001-04-27 | 2002-11-15 | Murata Mfg Co Ltd | Dielectric resonator device, filter, duplexer, and communication equipment |
| US8026120B2 (en) * | 2009-01-14 | 2011-09-27 | Seiko Epson Corporation | Method of manufacturing MEMS device |
| CN102780465A (en) * | 2011-03-07 | 2012-11-14 | 精工电子有限公司 | Method and apparatus of manufacturing piezoelectric vibrating reed, piezoelectric vibration reed, piezoelectric vibrator, oscillator, electronic apparatus and radio-controlled timepiece |
| CN102938490A (en) * | 2012-11-21 | 2013-02-20 | 江苏贝孚德通讯科技股份有限公司 | Medium TM mode single-ended short circuit resonator |
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| Publication number | Publication date |
|---|---|
| WO2014176770A1 (en) | 2014-11-06 |
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Application publication date: 20160302 |