CN102664300B - Inductive coupling bar adjusting device and coaxial cavity radio frequency device - Google Patents
Inductive coupling bar adjusting device and coaxial cavity radio frequency device Download PDFInfo
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- CN102664300B CN102664300B CN201210161370.4A CN201210161370A CN102664300B CN 102664300 B CN102664300 B CN 102664300B CN 201210161370 A CN201210161370 A CN 201210161370A CN 102664300 B CN102664300 B CN 102664300B
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Abstract
The invention provides an inductive coupling bar adjusting device and a coaxial cavity radio frequency device. The inductive coupling bar adjusting device comprises an inductive coupling bar, expansion screw rods, cover plate locking screw rods, a cover plate and nuts, wherein the cover plate locking screw rods can be rotatably adjusted and drive the expansion screw rods to expand up and down; and the expansion screw rods drive the inductive coupling bar to expand up and down in a horizontal linear mode so as to adjust the vertical height of the inductive coupling bar. By the inductive coupling bar adjusting device and the coaxial cavity radio frequency device, the vertical height of the inductive coupling bar can be quickly and accurately adjusted, and accurate and reliable data is provided for researching and developing conversion to mass production, so that the requirements on indexes of the product are met to the maximum extent, and the risk of poor production is reduced.
Description
Technical field
The present invention relates to a kind of communication equipment technical field, relate in particular to a kind of inductive coupled post adjustment mechanism and a kind of coaxial cavity radio-frequency (RF) device.
Background technology
Coaxial cavity radio-frequency (RF) device, for the treatment of the electromagnetic wave signal of 300KHz ~ 12GHz, mainly applies to the front-end filtering of each large communication base station, and its effect is the outer high reject signal of filtering band.
As shown in Figure 1, the part of the coaxial cavity radio-frequency (RF) device of prior art mainly comprises: cavity 1, cover plate 2, resonator 3, inductive coupled bar 4, inductive coupled bar holder 5, adjustment screw 6.Fig. 1 is the schematic diagram of the coaxial cavity radio-frequency (RF) device of prior art, and the chamber number of actual product and arrangement are more complicated.
Inductive coupled bar 4 role in coaxial cavity radio-frequency (RF) device is: produce at the non-resonant cavity that closes on the Frequency point coupling that is transmitted as zero, to improve squareness factor, strengthen the Out-of-band rejection of coaxial cavity radio-frequency (RF) device, make it have better frequency selectivity.
The inductive coupled bar 4 non-size of closing on resonant cavity energy that is coupled becomes the key that realizes its function, in inductive coupled bar 4 cross-directional length certain in the situation that, the size of coupling energy is that the height by regulating inductive coupled bar 4 vertical direction is realized, re-use small tool stir by the adjustment screw on cover plate inductive coupled bar 4 middle part height realize fine setting.
Concrete, referring to Fig. 2, the principle of assembling inductive coupled bar in prior art is as follows:
First, inductive coupled bar holder 5 is screwed into the through hole on cover plate 2, more inductive coupled bar 4 is inserted to inductive coupled bar holder 5, then tight with scolding tin weldering.
Then, cover plate 2 is installed on cavity 1, then adjustment screw 6 is screwed into cover plate 2, regulate inductive coupled bar 4 to reach, to regulate the big or small object of coupling energy.
In the process of research and development coaxial cavity radio-frequency (RF) device, the height of the vertical direction of its inductive coupled bar need to regulate frequently, to play the effect that regulates coupling energy size, thereby make the performance index of product reach designing requirement, after debugging, the height value of this inductive coupled bar is just fixing, and then this tune-up data is applied in the product of batch production and goes.
The coaxial cavity radio-frequency (RF) device that prior art provides and its inductive coupled bar regulative mode, have following defect:
The first, the middle part that can only stir inductive coupled bar in prior art makes its distortion, to reach the object that regulates its height value.Very inconvenient when but this mode regulates, because the horizontal direction of inductive coupled bar is an intermediate projections or recessed non-rectilinear bar, therefore when measuring appliance vertical height, its data are very unreliable, and the vertical height value therefore regulating for inductive coupled bar cannot accurately be measured.
Second, in the process of production product, inductive coupled bar is a straight U-shaped bar of horizontal direction, this has just caused in the time that research and development are changed the line of production to production, the data that regulate for the vertical height of inductive coupled bar can not accurately be measured, can only design choice according to research staff's empirical value, this has caused great risk to production undoubtedly.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of inductive coupled post adjustment mechanism and a kind of coaxial cavity radio-frequency (RF) device.
The inductive coupled post adjustment mechanism of one provided by the invention, comprising:
Inductive coupled bar, expansion screw, cover plate tie down screw, cover plate, nut;
Described inductive coupled bar takes the shape of the letter U, and described cover plate the right and left is respectively provided with the first screw and the second through hole; Described nut is divided into the first nut and the second nut; Described the first nut is arranged on described the first through hole, and described the second nut is arranged on described the second through hole;
Described cover plate tie down screw is divided into the first tie down screw and the second tie down screw, and this first tie down screw is screwed in the first screw of described cover plate, and described the second tie down screw is screwed in the second screw of described cover plate;
Described expansion screw is divided into the first expansion screw and the second expansion screw; Described the first expansion screw screws into described the first tie down screw; Described the second expansion screw screws in described the second tie down screw;
Insert respectively in the first expansion screw of described expansion screw and first blind hole and the second blind hole of the second expansion screw lower end at the two ends of described inductive coupled bar; And weld mutually with described the first expansion screw and the second expansion screw the both sides at the two ends of described inductive coupled bar;
Described cover plate tie down screw is rotatable adjusting, and it drives described expansion screw to stretch up and down, and described expansion screw drives described inductive coupled bar flexible up and down in keeping horizontal linear shape, to regulate the vertical height of described inductive coupled bar.
Wherein, the screw thread arranging respectively on described cover plate tie down screw and described expansion screw is reverse thread.
Or the screw thread arranging respectively on described cover plate tie down screw and described expansion screw is screw thread in the same way.
Wherein, the first tie down screw of described cover plate tie down screw and the second tie down screw can adjusted in concert.
Wherein, between described the first nut and described the first through hole, be also provided with the first plain washer, between described the second nut and described the second through hole, be also provided with the second plain washer.
Accordingly, the present invention also provides a kind of coaxial cavity radio-frequency (RF) device, comprising:
Cavity, the resonator arranging in cavity; Inductive coupled bar, expansion screw, cover plate tie down screw, cover plate, nut; Described cover plate is used for sealing described cavity;
Described inductive coupled bar takes the shape of the letter U, and described cover plate the right and left is respectively provided with the first screw and the second through hole; Described nut is divided into the first nut and the second nut; Described the first nut is arranged on described the first through hole, and described the second nut is arranged on described the second through hole;
Described cover plate tie down screw is divided into the first tie down screw and the second tie down screw, and this first tie down screw is screwed in the first screw of described cover plate, and described the second tie down screw is screwed in the second screw of described cover plate;
Described expansion screw is divided into the first expansion screw and the second expansion screw; Described the first expansion screw screws into described the first tie down screw; Described the second expansion screw screws in described the second tie down screw;
Insert respectively in the first expansion screw of described expansion screw and first blind hole and the second blind hole of the second expansion screw lower end at the two ends of described inductive coupled bar; And weld mutually with described the first expansion screw and the second expansion screw the both sides at the two ends of described inductive coupled bar;
Described cover plate tie down screw is rotatable adjusting, and it drives described expansion screw to stretch up and down, and described expansion screw drives described inductive coupled bar flexible up and down in keeping horizontal linear shape, to regulate the vertical height of described inductive coupled bar.
Or the screw thread arranging respectively on described cover plate tie down screw and described expansion screw is reverse thread.
Wherein, the screw thread arranging respectively on described cover plate tie down screw and described expansion screw is screw thread in the same way.
Wherein, the first tie down screw of described cover plate tie down screw and the second tie down screw can adjusted in concert.
Wherein, between described the first nut and described the first through hole, be also provided with the first plain washer, between described the second nut and described the second through hole, be also provided with the second plain washer.
Implement the inductive coupled post adjustment mechanism of one provided by the invention and a kind of coaxial cavity radio-frequency (RF) device, it can regulate the vertical height of inductive coupled bar fast and accurately, for research and development provide accurate and reliable data in the time that volume production is changed, greatly degree has met the requirement of product to index, has reduced and has produced bad risk.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the coaxial cavity radio-frequency (RF) device of prior art;
Fig. 2 is the assembling schematic diagram of the inductive coupled bar of prior art;
Fig. 3 is the structural representation of a kind of inductive coupled post adjustment mechanism embodiment mono-provided by the invention;
Fig. 4 is the structural representation of a kind of inductive coupled post adjustment mechanism embodiment bis-provided by the invention;
Fig. 5 is the structural representation of a kind of coaxial cavity radio-frequency (RF) device embodiment mono-provided by the invention;
Fig. 6 is the structural representation of a kind of coaxial cavity radio-frequency (RF) device embodiment bis-provided by the invention.
Embodiment
The invention provides a kind of inductive coupled post adjustment mechanism and a kind of coaxial cavity radio-frequency (RF) device, it can regulate the vertical height of inductive coupled bar fast and accurately, for research and development provide accurate and reliable data in the time that volume production is changed, greatly degree has met the requirement of product to index, has reduced and has produced bad risk.The concrete enforcement of a kind of inductive coupled post adjustment mechanism provided by the invention and a kind of coaxial cavity radio-frequency (RF) device will be illustrated below.
Referring to Fig. 3, it is the structural representation of a kind of inductive coupled post adjustment mechanism embodiment mono-provided by the invention.
The inductive coupled post adjustment mechanism of one provided by the invention, comprising:
Inductive coupled bar 1, expansion screw 2, cover plate tie down screw 3, cover plate 4, nut 5;
Described inductive coupled bar 1 takes the shape of the letter U, and described cover plate 4 the right and lefts are respectively provided with the first screw 41 and the second through hole 42; Described nut 5 is divided into the first nut 51 and the second nut 52; Described the first nut 51 is arranged on described the first through hole 41, and described the second nut is arranged on described the second through hole 42;
Described cover plate tie down screw 3 is divided into the first tie down screw 31 and the second tie down screw 32, and this first tie down screw 31 is screwed in the first screw 41 of described cover plate 4, and described the second tie down screw 32 is screwed in the second screw 42 of described cover plate 4;
Described expansion screw 2 is divided into the first expansion screw 21 and the second expansion screw 22; Described the first expansion screw 21 screws into described the first tie down screw 31; Described the second expansion screw 22 screws in described the second tie down screw 32;
Insert respectively in the first expansion screw 21 of described expansion screw 2 and first blind hole 210 and the second blind hole 220 of the second expansion screw 22 lower ends at the two ends of described inductive coupled bar 1; And weld mutually with described the first expansion screw 21 and the second expansion screw 22 both sides at the two ends of described inductive coupled bar 1;
Described cover plate tie down screw 3 is rotatable adjusting, it drives described expansion screw 2 to stretch up and down, described expansion screw 2 drives described inductive coupled bar 1 flexible up and down in keeping horizontal linear shape, to regulate the vertical height of described inductive coupled bar 1.
Wherein, the screw thread arranging respectively on described cover plate tie down screw 3 and described expansion screw 2 is reverse thread.For example, cover plate tie down screw 3 is right-handed thread, and expansion screw 2 is left hand thread.Otherwise or.When this design can make full use of reverse thread rotation, make inner-outer sleeve improve the efficiency of adjusting to the feature of same direction motion simultaneously.
Or the screw thread arranging respectively on described cover plate tie down screw 3 and described expansion screw 2 is screw thread in the same way.This design, inner-outer sleeve produces counter motion, also can reach the object that regulates inductive coupled bar 1 vertical height.
And, the first tie down screw 31 of described cover plate tie down screw 3 and the second tie down screw 32 can adjusted in concert, it should be noted that: need a special instrument to regulate to the first adjusted in concert that tightens screw rod 31 and the second tie down screw 32, for example toothed belt transmission, synchromesh gear engagement etc. mode, this is well-known to those skilled in the art to utilize specialist tools to carry out adjusted in concert to screw rod.Certainly, in the present invention, also can asynchronous adjusting first lock Luo bar 31 and the second tie down screw 32, this is because the inductive coupled bar 1 of U-shaped is softer, and possesses certain elasticity, can distinguish independently and regulate, and also can reach same effect.
In specific implementation, between nut and screw, be also provided with plain washer.Concrete, referring to Fig. 4, between described the first nut 51 and described the first screw 41, be also provided with the first plain washer 61, between described the second nut 52 and described the second screw 42, be also provided with the second plain washer 62(and no longer illustrate at this).
In specific implementation, cover plate tie down screw 3 is M4 cover plate tie down screw, and expansion screw 2 is M2 expansion screw; The telescopic adjustment stroke that M4 cover plate tie down screw rotates a circle is that the pitch P of M4 cover plate tie down screw and M2 expansion screw is added: specifically 0.7mm+0.4mm=1.1mm.
If wanting increases the precision regulating, M2 expansion screw can be made into closely-pitched P=0.25mm, M4 cover plate tie down screw makes closely-pitched P=0.5mm into, and the telescopic adjustment stroke that M4 cover plate tie down screw rotates a circle is 0.25mm+0.4mm=0.65mm.
It should be noted that: if be screw thread in the same way by the Design of Screw Thread on cover plate tie down screw 3 and described expansion screw 2, due to the two counter motion, the telescopic adjustment stroke that M4 cover plate tie down screw rotates a circle is 0.7mm-0.3mm=0.4mm.
Accordingly, the present invention also provides a kind of coaxial cavity radio-frequency (RF) device, and referring to Fig. 5, it comprises:
Cavity 7, the resonator 8 arranging in cavity 7; Inductive coupled bar 1, expansion screw 2, cover plate tie down screw 3, cover plate 4, nut 5; Described cover plate 4 is for sealing described cavity 7;
Described inductive coupled bar 1 takes the shape of the letter U, and described cover plate 4 the right and lefts are respectively provided with the first screw 41 and the second through hole 42; Described nut 5 is divided into the first nut 51 and the second nut 52; Described the first nut 51 is arranged on described the first through hole 41, and described the second nut is arranged on described the second through hole 42;
Described cover plate tie down screw 3 is divided into the first tie down screw 31 and the second tie down screw 32, and this first tie down screw 31 is screwed in the first screw 41 of described cover plate 4, and described the second tie down screw 32 is screwed in the second screw 42 of described cover plate 4;
Described expansion screw 2 is divided into the first expansion screw 21 and the second expansion screw 22; Described the first expansion screw 21 screws into described the first tie down screw 31; Described the second expansion screw 22 screws in described the second tie down screw 32;
Insert respectively in the first expansion screw 21 of described expansion screw 2 and first blind hole 210 and the second blind hole 220 of the second expansion screw 22 lower ends at the two ends of described inductive coupled bar 1; And weld mutually with described the first expansion screw 21 and the second expansion screw 22 both sides at the two ends of described inductive coupled bar 1;
Described cover plate tie down screw 3 is rotatable adjusting, it drives described expansion screw 2 to stretch up and down, described expansion screw 2 drives described inductive coupled bar 1 flexible up and down in keeping horizontal linear shape, to regulate the vertical height of described inductive coupled bar 1.
Wherein, the screw thread arranging respectively on described cover plate tie down screw 3 and described expansion screw 2 is reverse thread.
Or the screw thread arranging respectively on described cover plate tie down screw 3 and described expansion screw 2 is screw thread in the same way.
Wherein, the first tie down screw 31 of described cover plate tie down screw 3 and the second tie down screw 32 can adjusted in concert.
In specific implementation, between described the first nut 51 and described the first through hole 41, be also provided with the first plain washer 61, between described the second nut and described the second through hole 42, be also provided with the second plain washer 62.
Referring to Fig. 6, after inductive coupled bar welding is complete, the part that can be exceeded cover plate is cut.
Coaxial cavity radio-frequency (RF) device provided by the invention, has utilized the rear non-rotatable characteristic of inductive coupled bar both sides welding, and the effect that screws of recycling internal and external threads bar, makes it can reach the object of upper and lower telescopic adjustment height.
Implement the inductive coupled post adjustment mechanism that the embodiment of the present invention provides, there is following beneficial effect:
Implement inductive coupled post adjustment mechanism provided by the invention and coaxial cavity radio-frequency (RF) device, can regulate quickly and easily the height of inductive coupled bar vertical direction, increase to reach adjustable range, adjust Cheng Jia great, and researched and developed accurately debugging test data.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. an inductive coupled post adjustment mechanism, is characterized in that, comprising:
Inductive coupled bar (1), expansion screw (2), cover plate tie down screw (3), cover plate (4), nut (5);
Described inductive coupled bar (1) takes the shape of the letter U, and described cover plate (4) the right and left is respectively provided with the first screw (41) and the second screw (42); Described nut (5) is divided into the first nut (51) and the second nut (52); It is upper that described the first nut (51) is arranged on described the first screw (41), and described the second nut is arranged on described the second screw (42);
Described cover plate tie down screw (3) is divided into the first tie down screw (31) and the second tie down screw (32), this first tie down screw (31) is screwed in first screw (41) of described cover plate (4), and described the second tie down screw (32) is screwed in second screw (42) of described cover plate (4);
Described expansion screw (2) is divided into the first expansion screw (21) and the second expansion screw (22); Described the first expansion screw (21) screws into described the first tie down screw (31); Described the second expansion screw (22) screws in described the second tie down screw (32);
Insert respectively in first expansion screw (21) of described expansion screw (2) and first blind hole (210) and the second blind hole (220) of the second expansion screw (22) lower end at the two ends of described inductive coupled bar (1); And weld mutually with described the first expansion screw (21) and the second expansion screw (22) both sides at the two ends of described inductive coupled bar (1);
Described cover plate tie down screw (3) is rotatable adjusting, it drives described expansion screw (2) to stretch up and down, described expansion screw (2) drives described inductive coupled bar (1) flexible up and down in keeping horizontal linear shape, to regulate the vertical height of described inductive coupled bar (1);
The first tie down screw (31) and second tie down screw (32) of described cover plate tie down screw (3) can adjusted in concert.
2. inductive coupled post adjustment mechanism as claimed in claim 1, is characterized in that, the screw thread arranging respectively on described cover plate tie down screw (3) and described expansion screw (2) is reverse thread.
3. inductive coupled post adjustment mechanism as claimed in claim 1, is characterized in that, the screw thread arranging respectively on described cover plate tie down screw (3) and described expansion screw (2) is screw thread in the same way.
4. inductive coupled post adjustment mechanism as claimed in claim 2 or claim 3, it is characterized in that, between described the first nut (51) and described the first screw (41), be also provided with the first plain washer (61), between described the second nut and described the second screw (42), be also provided with the second plain washer (62).
5. a coaxial cavity radio-frequency (RF) device, is characterized in that, comprising:
Cavity (7), the resonator (8) arranging in cavity (7); Inductive coupled bar (1), expansion screw (2), cover plate tie down screw (3), cover plate (4), nut (5); Described cover plate (4) is for sealing described cavity (7);
Described inductive coupled bar (1) takes the shape of the letter U, and described cover plate (4) the right and left is respectively provided with the first screw (41) and the second screw (42); Described nut (5) is divided into the first nut (51) and the second nut (52); It is upper that described the first nut (51) is arranged on described the first screw (41), and described the second nut is arranged on described the second screw (42);
Described cover plate tie down screw (3) is divided into the first tie down screw (31) and the second tie down screw (32), this first tie down screw (31) is screwed in first screw (41) of described cover plate (4), and described the second tie down screw (32) is screwed in second screw (42) of described cover plate (4);
Described expansion screw (2) is divided into the first expansion screw (21) and the second expansion screw (22); Described the first expansion screw (21) screws into described the first tie down screw (31); Described the second expansion screw (22) screws in described the second tie down screw (32);
Insert respectively in first expansion screw (21) of described expansion screw (2) and first blind hole (210) and the second blind hole (220) of the second expansion screw (22) lower end at the two ends of described inductive coupled bar (1); And weld mutually with described the first expansion screw (21) and the second expansion screw (22) both sides at the two ends of described inductive coupled bar (1);
Described cover plate tie down screw (3) is rotatable adjusting, it drives described expansion screw (2) to stretch up and down, described expansion screw (2) drives described inductive coupled bar (1) flexible up and down in keeping horizontal linear shape, to regulate the vertical height of described inductive coupled bar (1);
Wherein, first tie down screw (31) of described cover plate tie down screw (3) and the second tie down screw (32) can adjusted in concert.
6. coaxial cavity radio-frequency (RF) device as claimed in claim 5, is characterized in that, the screw thread arranging respectively on described cover plate tie down screw (3) and described expansion screw (2) is reverse thread.
7. coaxial cavity radio-frequency (RF) device as claimed in claim 5, is characterized in that, the screw thread arranging respectively on described cover plate tie down screw (3) and described expansion screw (2) is screw thread in the same way.
8. the coaxial cavity radio-frequency (RF) device as described in claim 6 or 7, it is characterized in that, between described the first nut (51) and described the first screw (41), be also provided with the first plain washer (61), between described the second nut and described the second screw (42), be also provided with the second plain washer (62).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210161370.4A CN102664300B (en) | 2012-05-23 | 2012-05-23 | Inductive coupling bar adjusting device and coaxial cavity radio frequency device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210161370.4A CN102664300B (en) | 2012-05-23 | 2012-05-23 | Inductive coupling bar adjusting device and coaxial cavity radio frequency device |
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| CN102664300A CN102664300A (en) | 2012-09-12 |
| CN102664300B true CN102664300B (en) | 2014-06-18 |
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| US9287600B2 (en) * | 2014-03-26 | 2016-03-15 | Alcatel-Lucent Shanghai Bell Co., Ltd. | Adjustable phase-inverting coupling loop |
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| CN2812313Y (en) * | 2005-06-01 | 2006-08-30 | 摩比天线技术（深圳）有限公司 | A cross coupling trimming device |
| CN2859833Y (en) * | 2005-12-12 | 2007-01-17 | 武汉凡谷电子技术股份有限公司 | Double fly-pole type cross coupling for duplexer |
| CN200997431Y (en) * | 2006-12-30 | 2007-12-26 | 摩比天线技术（深圳）有限公司 | Sensitive coupling structure between coaxial cavity resonater and filter therewith |
| CN101527380A (en) * | 2009-04-22 | 2009-09-09 | 京信通信系统（中国）有限公司 | Cavity radio frequency apparatus with capacitive cross coupling device |
| CN201603888U (en) * | 2009-12-11 | 2010-10-13 | 广州中船黄埔造船有限公司 | Angle adjusting device |
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2012
- 2012-05-23 CN CN201210161370.4A patent/CN102664300B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2812313Y (en) * | 2005-06-01 | 2006-08-30 | 摩比天线技术（深圳）有限公司 | A cross coupling trimming device |
| CN2859833Y (en) * | 2005-12-12 | 2007-01-17 | 武汉凡谷电子技术股份有限公司 | Double fly-pole type cross coupling for duplexer |
| CN200997431Y (en) * | 2006-12-30 | 2007-12-26 | 摩比天线技术（深圳）有限公司 | Sensitive coupling structure between coaxial cavity resonater and filter therewith |
| CN101527380A (en) * | 2009-04-22 | 2009-09-09 | 京信通信系统（中国）有限公司 | Cavity radio frequency apparatus with capacitive cross coupling device |
| CN201603888U (en) * | 2009-12-11 | 2010-10-13 | 广州中船黄埔造船有限公司 | Angle adjusting device |
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