CN204029958U - A kind of capacitive flies post adjustment mechanism and coaxial cavity TEM mode filter - Google Patents
A kind of capacitive flies post adjustment mechanism and coaxial cavity TEM mode filter Download PDFInfo
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- CN204029958U CN204029958U CN201420449515.5U CN201420449515U CN204029958U CN 204029958 U CN204029958 U CN 204029958U CN 201420449515 U CN201420449515 U CN 201420449515U CN 204029958 U CN204029958 U CN 204029958U
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Abstract
The utility model provides a kind of capacitance characteristic for coaxial cavity TEM mode filter to fly post adjustment mechanism.Wherein, capacitance characteristic flies post adjustment mechanism and comprises: capacitance characteristic flies bar, insert, insulation clamping seat, cover plate; Capacitance characteristic flies bar and takes the shape of the letter U, and its two ends are each passed through the first through hole on cover plate and the second through hole; First insert of insert to embed in the first through hole and welds with the first end that capacitive flies bar, and its second insert to embed in the second through hole and welds with the second end that capacitance characteristic flies bar; First insulation clamping seat of insulation clamping seat and the second insulation clamping seat embed respectively in the first through hole and the second through hole and form capacitance characteristic fly post adjustment mechanism to make cover plate and insert and capacitance characteristic fly bar.The utility model can the vertical height of accurate control capacittance characteristic coupling bar fast, obtains the coupling energy required for TEM mode filter cross coupling design, for research and development provide accurately and reliable data when volume production change.
Description
Technical field
The utility model relates to the communications field, and the capacitance characteristic particularly relating to a kind of coaxial cavity TEM mode filter flies post adjustment mechanism and coaxial cavity TEM mode filter.
Background technology
Coaxial cavity TEM mode filter is the device for the treatment of 300KHz ~ 30GHz electromagnetic wave signal, mainly applies to the front-end filtering of each large communication base station, the outer high reject signal of filter out-band.
As depicted in figs. 1 and 2:
The main structure of coaxial cavity TEM mode filter comprises: cavity, cover plate, resonator, capacitance characteristic fly bar, capacitance characteristic flies bar insulation clamping seat.It should be noted that, Fig. 1 and Fig. 2 is the schematic diagram of the coaxial cavity radio-frequency (RF) device of prior art, and chamber number and the arrangement of actual product are more complicated, for the purpose of directly perceived, just illustrate 2 and close on resonant cavity in figure.
The difference that capacitance characteristic flies bar and inductance characteristic coupling bar is, inductance characteristic coupling bar role in coaxial cavity RF device is the size regulating magnetic field energy, and capacitance characteristic flies the size that bar role in coaxial cavity RF device is adjustment electric field energy, concrete, the Frequency point coupling that transmission polarity superposition is zero is produced at the non-resonant cavity that closes on, thus raising squareness factor, strengthen the Out-of-band rejection of coaxial cavity TEM mode filter, make it have better frequency selectivity.
Capacitance characteristic flies the non-size of closing on resonant cavity energy of bar coupling becomes the key realizing its function, and the size of coupling energy to be the distance flown between bar two ends coupling disc and resonator by control capacittance characteristic realized.
The capacitance characteristic of prior art flies bar and is made into an overall construction design, specifically as shown in Figure 3.The structure of such one is in batch production, due to the error of the too many levels such as material, manufacture, assembling, capacitive is made to fly the actual demand length of bar and adopt the capacitive of computer Electromagnetic Simulation to fly to there is certain deviation between pole length value in the ideal case, that is, in the process of producing, the length that the capacitance characteristic of nearly 20% flies bar needs adjustment, to reach the size of its coupling energy of design.Therefore cavity and the cover plate of dismantling coaxial cavity TEM mode filter is just needed, capacitive could be changed and fly bar, but because cavity and cover plate are by a lot of screw lock, usually have between 40 ~ 150 screws, its dismounting and assembling all make the efficiency of producing greatly reduce, and add time and the cost of labor of production.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of capacitance characteristic of coaxial cavity TEM mode filter to fly post adjustment mechanism.
Wherein, described capacitance characteristic flies post adjustment mechanism, comprising:
Capacitance characteristic flies bar, insert, insulation clamping seat, cover plate;
Described capacitance characteristic flies bar and takes the shape of the letter U, and described cover plate the right and left is respectively provided with the first through hole and the second through hole;
Described capacitance characteristic flies the first end of bar through described first through hole, and its second end is through described second through hole;
Described insert is divided into the first insert and the second insert; Described first insert to embed in described first through hole and welds with the first end that described capacitance characteristic flies bar; Described second insert to embed in described second through hole and welds with the second end that described capacitance characteristic flies bar;
Described insert is riveted into described insulation clamping seat; Described insulation clamping seat is divided into the first insulation clamping seat and the second insulation clamping seat; Described first insulation clamping seat embeds in described first through hole and insulate with the first end making described cover plate and described first insert and described capacitance characteristic fly bar, and described second insulation clamping seat embeds in described second through hole and insulate with the second end making described cover plate and described second insert and described capacitance characteristic fly bar.
Wherein, described insert is metallic conductor.
The utility model also provides a kind of coaxial cavity TEM mode filter, comprising: cavity, the resonator arranged in cavity; Tuning screw, cover plate lock-screw, cover plate, nut; Described cover plate is by sealing between described cover plate lock-screw and described cavity; Described tuning screw is fixed on described cover plate by described nut; Wherein, also pad is provided with between described nut and described cover plate;
Described coaxial cavity TEM mode filter also comprises:
Capacitance characteristic flies bar, insert, insulation clamping seat;
Described capacitance characteristic flies bar and takes the shape of the letter U, and described cover plate the right and left is respectively provided with the first through hole and the second through hole;
Described capacitance characteristic flies the first end of bar through described first through hole, and its second end is through described second through hole;
Described insert is divided into the first insert and the second insert; Described first insert to embed in described first through hole and welds with the first end that described capacitance characteristic flies bar; Described second insert to embed in described second through hole and welds with the second end that described capacitance characteristic flies bar;
Described insert is riveted into described insulation clamping seat; Described insulation clamping seat is divided into the first insulation clamping seat and the second insulation clamping seat; Described first insulation clamping seat embeds in described first through hole and insulate with the first end making described cover plate and described first insert and described capacitance characteristic fly bar, and described second insulation clamping seat embeds in described second through hole and insulate with the second end making described cover plate and described second insert and described capacitance characteristic fly bar.
Wherein, described insert is metallic conductor.
Implement the utility model, U-shaped capacitance characteristic can be regulated quickly and easily to fly the vertical height of bar in cavity, thus the coupled electric field energy size between adjustment resonator, make up and produce and assemble the scale error brought, improve the First Pass Yield of product, can also enhance productivity and reduce cost of labor, thus reducing product cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a structural representation of the coaxial cavity TEM mode filter of prior art;
Fig. 2 is the another structural representation of the coaxial cavity TEM mode filter of prior art;
Fig. 3 is the assembling schematic diagram that the capacitance characteristic of prior art flies bar;
Fig. 4 is the structural representation that a kind of capacitance characteristic provided by the invention flies post adjustment mechanism embodiment one;
Fig. 5 is the structural representation of a kind of coaxial cavity TEM mode filter embodiment one provided by the invention;
Fig. 6 is the structural representation of a kind of coaxial cavity TEM mode filter embodiment two provided by the invention.
Embodiment
The utility model provides a kind of coaxial cavity TEM mode filter capacitance characteristic to fly post adjustment mechanism, it can fast and the vertical height that accurate control capacittance characteristic flies bar is produced and scale error that assembling causes to meet design and want coupling energy value and to compensate, for research and development provide accurately and reliable data when volume production is changed, high degree meets the requirement of product to index, reduces and produces bad risk.Below the capacitance characteristic illustrating a kind of coaxial cavity TEM mode filter that the utility model provides is flown the concrete enforcement of post adjustment mechanism.
See Fig. 4, the utility model provides a kind of capacitance characteristic to fly post adjustment mechanism, comprising:
Capacitance characteristic flies bar 41, insert, insulation clamping seat, cover plate 11;
Described capacitance characteristic flies bar 41 and takes the shape of the letter U, and described cover plate 11 the right and left is respectively provided with the first through hole 51 and the second through hole 52;
Described capacitance characteristic flies the first end 411 of bar 41 through described first through hole 51, and its second end 412 is through described second through hole 52;
Described insert is divided into the first insert 421 and the second insert 422; Described first insert 421 to embed in described first through hole 51 and welds with the first end 411 that described capacitance characteristic flies bar 41; Described second insert 422 to embed in described second through hole 52 and welds with the second end 422 that described capacitance characteristic flies bar 41;
Described insert is riveted into described insulation clamping seat; Described insulation clamping seat 40 is divided into the first insulation clamping seat 401 and the second insulation clamping seat 402; Described first insulation clamping seat 401 embeds in described first through hole 51 and insulate with the first end 411 making described cover plate 11 and described first insert 421 and described capacitance characteristic fly bar 41, and described second insulation clamping seat 402 embeds in described second through hole 52 and insulate with the second end 412 making described cover plate 11 and described second insert 422 and described capacitance characteristic fly bar 41.
Wherein, described insert is metallic conductor, its effect be ensure and U-shaped capacitance characteristic fly can firm welded between bar.
See Fig. 5 and Fig. 6, the utility model also provides a kind of coaxial cavity TEM mode filter, comprising: cavity 10, the resonator 12 arranged in cavity 10; Tuning screw 30, cover plate lock-screw 20, cover plate 11, nut 31; Described cover plate 11 is by sealing between described cover plate lock-screw 20 and described cavity 10; Described tuning screw 30 is fixed on described cover plate 11 by described nut 31; Wherein, pad 32 is also provided with between described nut 31 and described cover plate 11;
Described coaxial cavity TEM mode filter also comprises:
Capacitance characteristic flies bar 41, insert, insulation clamping seat;
Described capacitance characteristic bar 41 takes the shape of the letter U, and described cover plate 11 the right and left is respectively provided with the first through hole 51 and the second through hole 52;
Described capacitance characteristic flies the first end 411 of bar 41 through described first through hole 51, and its second end 412 is through described second through hole 52;
Described insert is divided into the first insert 421 and the second insert 422; Described first insert 421 to embed in described first through hole 51 and welds with the first end 411 that described capacitance characteristic flies bar 41; Described second insert 422 to embed in described second through hole 52 and welds with the second end 422 that described capacitance characteristic flies bar 41;
Described insert is riveted into described insulation clamping seat; Described insulation clamping seat is divided into the first insulation clamping seat 401 and the second insulation clamping seat 402; Described first insulation clamping seat 401 embeds in described first through hole 51 and insulate with the first end 411 making described cover plate 11 and described first insert 421 and described capacitance characteristic fly bar 41, and described second insulation clamping seat 402 embeds in described second through hole 52 and insulate with the second end 412 making described cover plate 11 and described second insert 422 and described capacitance characteristic fly bar 41.
Wherein, when assembling, insert is first riveted into insulation clamping seat, again insulation clamping seat is adopted and be threaded into cover plate, follow-up two holes U-shaped capacitance characteristic being flown bar insertion insert, namely can fly the height of bar by vertical adjusting U-shaped capacitance characteristic when not dismantling cover plate, so just can regulate the size of coupled electric field energy.It is all insulation between bar and cover plate, cavity that the utility model can ensure that capacitive flies.
Implement the utility model, U-shaped capacitance characteristic can be regulated quickly and easily to fly the vertical height of bar in cavity, thus the coupled electric field energy size between adjustment resonator, make up and produce and assemble the scale error brought, improve the First Pass Yield of product, can also enhance productivity and reduce cost of labor, thus reducing product cost.
It should be noted that; what the utility model described is a kind of product form that coaxial cavity TEM mode filter capacitance characteristic flies post adjustment mechanism; other meets the product of structure described in the utility model; even if order etc. put by material, device name, outward appearance, device, not affect the factor of product performance not identical, still belongs to the scope of the utility model protection.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (3)
1. capacitance characteristic flies a post adjustment mechanism, it is characterized in that, comprising:
Capacitance characteristic flies bar (41), insert, insulation clamping seat, cover plate (11);
Described capacitance characteristic flies bar (41) and takes the shape of the letter U, and described cover plate (11) the right and left is respectively provided with the first through hole (51) and the second through hole (52);
Described capacitance characteristic flies the first end (411) of bar (41) through described first through hole (51), and its second end (412) is through described second through hole (52);
Described insert is divided into the first insert (421) and the second insert (422); Described first insert (421) to embed in described first through hole (51) and welds with the first end (411) that described capacitance characteristic flies bar (41); Described second insert (422) to embed in described second through hole (52) and welds with the second end (422) that described capacitance characteristic flies bar (41);
Described insert is riveted into described insulation clamping seat; Described insulation clamping seat is divided into the first insulation clamping seat (401) and the second insulation clamping seat (402); Described first insulation clamping seat (401) embeds in described first through hole (51) to be insulated with the first end (411) making described cover plate (11) and described first insert (421) and described capacitance characteristic fly bar (41), and described second insulation clamping seat (402) embeds in described second through hole (52) to be insulated with the second end (412) making described cover plate (11) and described second insert (422) and described capacitance characteristic fly bar (41).
2. capacitance characteristic as claimed in claim 1 flies post adjustment mechanism, and it is characterized in that, described insert (42) is metallic conductor.
3. a coaxial cavity TEM mode filter, is characterized in that, comprising: cavity (10), the resonator (12) arranged in cavity (10); Tuning screw (30), cover plate lock-screw (20), cover plate (11), nut (31); Described cover plate (11) is by sealing between described cover plate lock-screw (20) and described cavity (10); Described tuning screw (30) is fixed on described cover plate (11) by described nut (31); Wherein, pad (32) is also provided with between described nut (31) and described cover plate (11);
Described coaxial cavity TEM mode filter also comprises:
Capacitance characteristic flies bar (41), insert (42), insulation clamping seat (40);
Described capacitance characteristic flies bar (41) and takes the shape of the letter U, and described cover plate (11) the right and left is respectively provided with the first through hole (51) and the second through hole (52);
Described capacitance characteristic flies the first end (411) of bar (41) through described first through hole (51), and its second end (412) is through described second through hole (52);
Described insert is divided into the first insert (421) and the second insert (422); Described first insert (421) to embed in described first through hole (51) and welds with the first end (411) that described capacitance characteristic flies bar (41); Described second insert (422) to embed in described second through hole (52) and welds with the second end (422) that described capacitance characteristic flies bar (41);
Described insert is riveted into described insulation clamping seat; Described insulation clamping seat is divided into the first insulation clamping seat (401) and the second insulation clamping seat (402); Described first insulation clamping seat (401) embeds in described first through hole (51) to be insulated with the first end (411) making described cover plate (11) and described first insert (421) and described capacitance characteristic fly bar (41), and described second insulation clamping seat (402) embeds in described second through hole (52) to be insulated with the second end (412) making described cover plate (11) and described second insert (422) and described capacitance characteristic fly bar (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420449515.5U CN204029958U (en) | 2014-08-11 | 2014-08-11 | A kind of capacitive flies post adjustment mechanism and coaxial cavity TEM mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420449515.5U CN204029958U (en) | 2014-08-11 | 2014-08-11 | A kind of capacitive flies post adjustment mechanism and coaxial cavity TEM mode filter |
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| Publication Number | Publication Date |
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| CN204029958U true CN204029958U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420449515.5U Expired - Fee Related CN204029958U (en) | 2014-08-11 | 2014-08-11 | A kind of capacitive flies post adjustment mechanism and coaxial cavity TEM mode filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207339A (en) * | 2016-08-31 | 2016-12-07 | 安徽赛福电子有限公司 | A kind of coupling filter |
| CN106711569A (en) * | 2015-07-23 | 2017-05-24 | 上海贝尔股份有限公司 | TEM-mode resonator |
-
2014
- 2014-08-11 CN CN201420449515.5U patent/CN204029958U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711569A (en) * | 2015-07-23 | 2017-05-24 | 上海贝尔股份有限公司 | TEM-mode resonator |
| CN106207339A (en) * | 2016-08-31 | 2016-12-07 | 安徽赛福电子有限公司 | A kind of coupling filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20141217 Termination date: 20160811 |