CN204441432U - The coaxial low pass filter that zero point is adjustable - Google Patents
The coaxial low pass filter that zero point is adjustable Download PDFInfo
- Publication number
- CN204441432U CN204441432U CN201520102556.1U CN201520102556U CN204441432U CN 204441432 U CN204441432 U CN 204441432U CN 201520102556 U CN201520102556 U CN 201520102556U CN 204441432 U CN204441432 U CN 204441432U
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- CN
- China
- Prior art keywords
- low pass
- adjustable
- housing
- zero point
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010168 coupling process Methods 0.000 claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 210000003205 muscle Anatomy 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The utility model relates to wave filter technology field, particularly relates to adjustable coaxial low pass filter at a kind of zero point.Comprise housing, low pass sleeve and cover plate, cover plate is arranged in housing top wall, muscle enclosure interior space being separated into multiple main chamber is provided with in housing, location hole is provided with in the middle part of muscle, low pass sleeve is placed in housing horizontal through location hole, main chamber side is provided with the adjustable coupling chamber be communicated with it, and on described cover plate, downward screw thread is hung with coupling screw rod, and described coupling screw rod is positioned at adjustable coupling chamber.The utility model structure is simple, by the coupling screw rod rotated in adjustable coupling chamber, its extension elongation is adjusted, position and the power at zero point can be changed, its be applied to filtering wherein have suppress adjustable, low-loss, the novel low pass filter feature of bandwidth, can meet the requirements such as broadband transmission data communication.
Description
Technical field
The utility model relates to wave filter technology field, particularly relates to adjustable coaxial low pass filter at a kind of zero point.
Background technology
Filter is one of indispensable device in wireless communication system, further in short supply along with wireless communication system frequency spectrum resource, and now more and more wide to the bandwidth requirement of filter, loss is low more and more low, and the application of low pass filter is also more and more extensive.The zero point of conventional lowpass filter is uncontrollable and adjust, and loss is still comparatively large, cannot meet existing market demand.
Utility model content
The purpose of this utility model is to solve the deficiency in above-mentioned background technology, provides a kind of loss low and the coaxial low pass filter that zero point is adjustable.
The technical solution of the utility model is: the coaxial low pass filter that a kind of zero point is adjustable, comprise housing, low pass sleeve and cover plate, cover plate is arranged in housing top wall, muscle enclosure interior space being separated into multiple main chamber is provided with in housing, location hole is provided with in the middle part of muscle, low pass sleeve is placed in housing horizontal through location hole, be provided with in described low pass sleeve and comprise height, the transmission line of Low ESR section, main chamber side is provided with the adjustable coupling chamber be communicated with it, on described cover plate, downward screw thread is hung with coupling screw rod, described coupling screw rod is positioned at adjustable coupling chamber.
Further, described adjustable coupling chamber is multiple.
Further, described transmission line comprises spaced low pass high resistant line and low pass low-resistance line.
Further, described cover plate is bolted in housing top wall.
The beneficial effects of the utility model are: the utility model structure is simple, adjustable coupling chamber is set up in main chamber side, by the coupling screw rod rotated in adjustable coupling chamber, its extension elongation is adjusted, position and the power at zero point can be changed, its be applied to filtering wherein have suppress adjustable, low-loss, the novel low pass filter feature of bandwidth, can meet the requirements such as broadband transmission data communication.
Accompanying drawing explanation
Fig. 1 is the utility model front view;
Fig. 2 is that Figure 1A-A is to cutaway view;
In figure: 1-housing, 2-low pass sleeve, 3-transmission line, 3.2-low pass high resistant line, 3.3-low pass low-resistance line, 4-adjustable coupling chamber, 5-coupling screw rod, 6-muscle, 7-main chamber.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Specific embodiment described herein only in order to explain the utility model, and is not used in restriction the utility model.In addition, if below in described each execution mode of the utility model involved technical characteristic do not form conflict each other and just can mutually combine.
As illustrated in fig. 1 and 2, the utility model comprises housing 1, the muscle 6 housing 1 inner space being separated into multiple main chamber 7 is provided with in housing 1, location hole is provided with in the middle part of muscle 6, in location hole, level is equipped with a low pass sleeve 2, be provided with in low pass sleeve 2 and comprise height, the transmission line 3 of Low ESR section, wherein three main chamber 7 sides are respectively arranged with three the adjustable coupling chambeies 4 be communicated with it, housing 1 roof is fixed with cover plate, on cover plate, downward screw thread is hung with three coupling screw rods 5, coupling screw rod 5 lays respectively in a corresponding with it adjustable coupling chamber 4.Transmission line 3 is made up of spaced low pass high resistant line 3.1 and low pass low-resistance line 3.2, and two low pass low-resistance line 3.2 diameters near middle part are greater than the diameter of the low pass low-resistance line 3.2 near two ends, left and right.
The adjustable coupling chamber 4 set up is utilized to realize the transmission zero of filter, by rotatable communication screw rod 5, make its extension elongation different, the i.e. position of adjustable transmission zero and power, it is have to suppress adjustable that this structure is applied on filter, low-loss, the novel low pass filter feature of bandwidth.
The above; be only embodiment of the present utility model, it should be pointed out that any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.
Claims (4)
1. the coaxial low pass filter that zero point is adjustable, comprise housing (1), low pass sleeve (2) and cover plate, described cover plate is arranged on housing (1) roof, the muscle (6) housing (1) inner space being separated into multiple main chamber (7) is provided with in described housing (1), described muscle (6) middle part is provided with location hole, described low pass sleeve (2) is placed in housing (1) horizontal through location hole, be provided with in described low pass sleeve (2) and comprise height, the transmission line (3) of Low ESR section, it is characterized in that: described main chamber (7) side is provided with the adjustable coupling chamber (4) be communicated with it, on described cover plate, downward screw thread is hung with coupling screw rod (5), described coupling screw rod (5) is positioned at adjustable coupling chamber (4).
2. the coaxial low pass filter that a kind of zero point as claimed in claim 1 is adjustable, is characterized in that: described adjustable coupling chamber (4) is for multiple.
3. the coaxial low pass filter that a kind of zero point as claimed in claim 1 is adjustable, is characterized in that: described transmission line (3) comprises spaced low pass high resistant line (3.1) and low pass low-resistance line (3.2).
4. the coaxial low pass filter that a kind of zero point as claimed in claim 1 is adjustable, is characterized in that: described cover plate is bolted on housing (1) roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102556.1U CN204441432U (en) | 2015-02-12 | 2015-02-12 | The coaxial low pass filter that zero point is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102556.1U CN204441432U (en) | 2015-02-12 | 2015-02-12 | The coaxial low pass filter that zero point is adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204441432U true CN204441432U (en) | 2015-07-01 |
Family
ID=53609259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520102556.1U Expired - Fee Related CN204441432U (en) | 2015-02-12 | 2015-02-12 | The coaxial low pass filter that zero point is adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204441432U (en) |
-
2015
- 2015-02-12 CN CN201520102556.1U patent/CN204441432U/en not_active Expired - Fee Related
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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: 20150701 |