CN205790303U - Cavity body filter - Google Patents
Cavity body filter Download PDFInfo
- Publication number
- CN205790303U CN205790303U CN201620699147.9U CN201620699147U CN205790303U CN 205790303 U CN205790303 U CN 205790303U CN 201620699147 U CN201620699147 U CN 201620699147U CN 205790303 U CN205790303 U CN 205790303U
- Authority
- CN
- China
- Prior art keywords
- resonant
- tap sheet
- cavity
- substrate
- body filter
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 32
- 238000010168 coupling process Methods 0.000 claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 210000003205 muscle Anatomy 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 235000013372 meat Nutrition 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
This utility model relates to technology for radio frequency field, a kind of cavity body filter is provided, resonant cavity, cover plate, some resonant rods, first tap sheet and the second tap sheet, resonant cavity has signal input part and signal output part, each resonant rod is located in resonant cavity, resonant rod includes hollow lever, the one-body molded first tap sheet of the first substrate near a wherein resonant rod of signal input part, the other end of the first tap sheet connects signal input part, the one-body molded second tap sheet of the second substrate near a wherein resonant rod of signal output part, the other end of the second tap sheet connects signal output part.The cavity body filter that this utility model provides, first substrate and the first tap sheet junction and the second substrate and the second tap sheet junction there is higher fineness, improve the coupling performance of resonant rod, use integrated mode, reduce installation difficulty, meanwhile, technological requirement is low, manual operation low cost.
Description
Technical field
This utility model relates to technology for radio frequency field, particularly relates to a kind of cavity body filter.
Background technology
Electromagnetic wave signal can be filtered by cavity body fluid filter, allows the signal needed pass through, suppresses unwanted
Signal, its main purpose is the interference problem between the wireless telecommunication system solving different frequency range, multi-form.
Cavity body fluid filter mainly includes resonant cavity, resonant rod, tuning screw and tap sheet.Resonant cavity has
Input and outfan, resonant rod is installed in resonant cavity, resonant rod by tap sheet respectively with the input section of resonant cavity
Connect with deferent segment.At present, during assembling resonant rod, first multiple resonant rods are separately mounted in each resonant cavity, then
By welding by the way of, the resonant rod in humorous with cavity body filter input for tap sheet cavity is connected, meanwhile, tap sheet also with
Resonant rod in cavity body filter deferent segment resonant cavity connects.Welding manner is used to connect below tap sheet and resonant rod existence
Drawback: first, tap sheet easily occurs heated bending in welding process, thus affects the coupling performance of resonant rod；Second, resonance
Bar is connected by input or the outfan of tap sheet with resonant cavity, is easily generated build-up tolerance, thus assembly precision requires height；The
Three, there is solder joint with the junction of tap sheet in resonant rod, the fineness causing resonant rod surface is low, affects resonant rod too
Coupling performance；4th, technological requirement is high, and operating process is complicated.
Utility model content
In sum, the purpose of this utility model is to provide a kind of cavity body filter, it is intended to solve in prior art humorous
The coupling performance of the resonant rod that the bar that shakes causes because using welding connecting mode with tap sheet declines, quality of fit requires high asking
Topic.
This utility model is achieved in that cavity body filter, including resonant cavity, is covered on described resonant cavity
Cover plate, some resonant rods, the first tap sheet and the second tap sheet, described resonant cavity has signal input part and signal output
Holding, each described resonant rod is located in described resonant cavity, and described resonant rod includes hollow lever, near described signal input part
Wherein the edge of the described hollow lever of resonant rod described in radially protrudes out formation the first substrate, on described first substrate
One-body molded described first tap sheet, the other end of described first tap sheet connects described signal input part, near described signal
The edge of the described hollow lever of the wherein resonant rod described in of outfan radially protrudes out formation the second substrate, and described the
One-body molded described second tap sheet on two substrates, the other end of described second tap sheet connects described signal output part.
Further, described first tap sheet and described first substrate are in same level plane.
Further, described second tap sheet includes being in the first level being same as horizontal plane with described second substrate
Section, bent down by described first horizontal segment and straight down extend form vertical section and be vertically connected at described vertical section
Second horizontal segment, described second horizontal segment is parallel to described first horizontal segment and connects described signal output part.
Further, offering some chambers in described resonant cavity, each described chamber is sequentially communicated in order, each described
Resonant rod described in one it is equipped with in chamber.
Further, being provided with coupling muscle between adjacent described resonant rod, described in described coupling muscle and two, resonant rod one becomes
Type.
Specifically, described coupling muscle level connection joint is between the described hollow lever of resonant rod described in adjacent two.
Further, if also including dry-cured meat screw rod, described cover plate is provided with some first perforates, each described first perforate
Corresponding with the middle part of each described coupling muscle, each described coupling screw rod is each passed through each described first perforate and is placed in the institute of correspondence
State above the middle part of coupling muscle.
Further, also including some resonance screw rods, described cover plate is provided with some second perforates, each described second perforate
With the opening one_to_one corresponding of each described hollow lever, each described resonance screw rod is each passed through each described second perforate and stretches into correspondence
Described hollow lever in.
Compared with prior art, the cavity body filter that this utility model provides, will be close to the signal input part of resonant cavity
The one-body molded first tap sheet of the first substrate of a wherein resonant rod, and will be close to the signal output part of resonant cavity wherein
The one-body molded second tap sheet of second substrate of resonant rod in one, so, the first substrate and the first tap sheet junction and
Two substrates and the second tap sheet junction there is higher fineness, improve the coupling performance of resonant rod, use one to become
The mode of type, reduces installation accuracy, and meanwhile, technological requirement is low, manual operation low cost.
Accompanying drawing explanation
Fig. 1 is the explosive view of the cavity body filter that this utility model embodiment provides；
Fig. 2 is the profile in Fig. 1 at A-A；
Fig. 3 is the resonant rod of this utility model embodiment offer and the structural representation coupling muscle；
Fig. 4 is the first tap sheet structural representation with resonant rod of this utility model embodiment offer；
Fig. 5 is the profile in Fig. 4 at B-B；
Fig. 6 is the second tap sheet structural representation with resonant rod of this utility model embodiment offer；
Fig. 7 is the profile in Fig. 6 at C-C.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
It should be noted that when element is referred to as on " being fixed on " or " being arranged at " another element, it can be direct
On another element or be connected on another element.When an element is known as " connection " another element, and it can
Being to be directly connected to another element or be indirectly connected on this another element.
Also, it should be noted the orientation term such as left and right, upper and lower, top in the present embodiment, end, it is only the most general
Read or with the normal operating condition of product as reference, and should not be regarded as restrictive.
Below in conjunction with specific embodiment, realization of the present utility model is described in detail.
Refer to Fig. 1, Fig. 5 and Fig. 7, the cavity body filter that this utility model embodiment provides includes that resonant cavity 1, lid set
Cover plate 2 on resonant cavity 1, some resonant rods the 3, first tap sheet 41 and the second tap sheet 42, resonant cavity 1 has letter
Number input 11 and signal output part 12, each resonant rod 3 is located in resonant cavity 1, and resonant rod 3 includes hollow lever 30, close
The edge of the wherein hollow lever 30 of a resonant rod 3 of signal input part 11 radially protrudes out formation the first substrate 31, the
One-body molded first tap sheet 41 on one substrate 31, the other end of the first tap sheet 41 connects signal input part 11, near signal
The edge of the wherein hollow lever 30 of a resonant rod 3 of outfan 12 radially protrudes out formation the second substrate 32, the second base
One-body molded second tap sheet 42 on sheet 32, the other end of the second tap sheet 42 connects signal output part 12.
The cavity body filter that this utility model embodiment provides, will be close to the signal input part 11 of resonant cavity 1 wherein
The one-body molded first tap sheet 41 of first substrate 31 of one resonant rod 3, and will be close to its of signal output part 12 of resonant cavity 1
In the one-body molded second tap sheet 42 of the second substrate 32 of resonant rod 3 in, so, the first substrate 31 and the first tap sheet 41 are even
The place of connecing and the second substrate 32 and the second tap sheet 42 junction there is higher fineness, improve the coupling of resonant rod 3
Performance, uses integrated mode, also reduces installation difficulty, and meanwhile, technological requirement is low, manual operation low cost.
Further, refer to Fig. 4, in the present embodiment, the first tap sheet 41 and the first substrate 31 are in same level
Plane.So, beneficially input signal is quickly transferred to the first substrate 31, and excitation is near the resonant rod 3 of signal input part 11, logical
After crossing the coupling of this hollow lever 30, energy signal is transferred to next resonant rod 3.
Further, refer to Fig. 7, in the present embodiment, the second tap sheet 42 includes being in the second substrate 32 being same as
First horizontal segment 421 of horizontal plane, the first horizontal segment 421 bend down and extend straight down and forms vertical section and vertical
Direct-connected the second horizontal segment 422 being connected to vertical section, the second horizontal segment 422 is parallel to the first horizontal segment 421 and connects signal output
End 12.When the many secondary coupling of energy signal are transferred to last resonant rod 3, i.e. when the resonant rod 3 of signal output part 12, energy
Signal is transferred to the second tap sheet 42 by the second substrate 32 after being coupled by hollow lever 30, then the second tap sheet 42 is transferred to letter
Number outfan 12.
Further, refer to Fig. 1 and Fig. 2, in the present embodiment, in resonant cavity 1, offer some chambers 10, each chamber
Room 10 is sequentially communicated in order, is equipped with a resonant rod 3 in each chamber 10.Generally, determine according to the Out-of-band rejection that passband is other
Chamber 10 in resonant cavity 1 and the quantity of resonant rod 3.
Further, refer to Fig. 2 and Fig. 3, in the present embodiment, between adjacent resonant rod 3, be provided with coupling muscle 5, coupling
Muscle 5 is one-body molded with two resonant rods 3.Specifically, coupling muscle 5 level connection joint is between the hollow lever 30 of adjacent two resonant rods 3.
Here, energy signal couples in conductive process between each resonant rod 3, owing to the coupling ability of each resonant rod 3 exists deviation, then
Coupling muscle 5 need to be utilized to finely tune the stiffness of coupling of resonant rod 3.
Further, refer to Fig. 1 and Fig. 2, in the present embodiment, if also including dry-cured meat screw rod 6, cover plate 2 is provided with
Some first perforates 21, each first perforate 21 is corresponding with the middle part of each coupling muscle 5, and each coupling screw rod 6 is each passed through each first
Perforate 21 is placed in above the middle part of coupling muscle 5 of correspondence.Utilize the range difference of coupling screw rod 6 opposing coupler muscle 5, realize phase
The stiffness of coupling of adjacent two resonant rods 3, is adjusted to matching status, to reach corresponding index request.
Further, refer to Fig. 1 and Fig. 2, in the present embodiment, also include some resonance screw rods 7, cover plate 2 is provided with
Some second perforates 22, each second perforate 22 and the opening one_to_one corresponding of each hollow lever 30, each resonance screw rod 7 is each passed through respectively
Second perforate 22 is also stretched in corresponding hollow lever 30.Enter the degree of depth in hollow lever 30 by regulation resonance screw rod 7, make
Obtain each resonant rod 3 resonance to assigned frequency.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (8)
1. cavity body filter, the cover plate including resonant cavity, being covered on described resonant cavity, some resonant rods, the first tap
Sheet and the second tap sheet, described resonant cavity has signal input part and signal output part, and each described resonant rod is located at described
In resonant cavity, described resonant rod includes hollow lever, it is characterised in that wherein humorous described near described signal input part
The shake edge of described hollow lever of bar radially protrudes out formation the first substrate, one-body molded described on described first substrate
First tap sheet, the other end of described first tap sheet connects described signal input part, near described signal output part wherein
The edge of the described hollow lever of resonant rod described in radially protrudes out formation the second substrate, one on described second substrate
Second tap sheet described in molding, the other end of described second tap sheet connects described signal output part.
2. cavity body filter as claimed in claim 1, it is characterised in that described first tap sheet is in described first substrate
Same level plane.
3. cavity body filter as claimed in claim 1, it is characterised in that described second tap sheet includes and described second substrate
Be in be same as horizontal plane the first horizontal segment, bent down by described first horizontal segment and straight down extend form vertical section
And it being vertically connected at the second horizontal segment of described vertical section, described second horizontal segment is parallel to described first horizontal segment and connection
Described signal output part.
4. cavity body filter as claimed in claim 1, it is characterised in that offer some chambers in described resonant cavity, respectively
Described chamber is sequentially communicated in order, is equipped with resonant rod described in each described chamber.
5. cavity body filter as claimed in claim 4, it is characterised in that be provided with coupling muscle, institute between adjacent described resonant rod
State resonant rod described in coupling muscle and two one-body molded.
6. cavity body filter as claimed in claim 5, it is characterised in that described coupling muscle level connection joint is in humorous described in adjacent two
Shake between the described hollow lever of bar.
7. the cavity body filter as described in claim 5 or 6, it is characterised in that if also including dry-cured meat screw rod, on described cover plate
Being provided with some first perforates, each described first perforate is corresponding with the middle part of each described coupling muscle, and each described coupling screw rod is respectively
Above the middle part of the described coupling muscle being placed in correspondence through each described first perforate.
8. cavity body filter as claimed in claim 1, it is characterised in that also include some resonance screw rods, described cover plate sets
Having the opening one_to_one corresponding of some second perforates, each described second perforate and each described hollow lever, each described resonance screw rod divides
Not Chuan Guo each described second perforate and stretch into correspondence described hollow lever in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699147.9U CN205790303U (en) | 2016-07-05 | 2016-07-05 | Cavity body filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699147.9U CN205790303U (en) | 2016-07-05 | 2016-07-05 | Cavity body filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205790303U true CN205790303U (en) | 2016-12-07 |
Family
ID=58126223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620699147.9U Expired - Fee Related CN205790303U (en) | 2016-07-05 | 2016-07-05 | Cavity body filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205790303U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010888A (en) * | 2018-08-08 | 2020-04-14 | 深圳市大富科技股份有限公司 | Resonator and cavity filter |
| CN112952325A (en) * | 2021-01-29 | 2021-06-11 | 盐城东山通信技术有限公司 | Inductive coupling assembly, cavity filter and communication radio frequency equipment |
| CN113675563A (en) * | 2020-05-14 | 2021-11-19 | 大富科技(安徽)股份有限公司 | Filter and communication equipment |
| CN113851803A (en) * | 2020-06-28 | 2021-12-28 | 大富科技(安徽)股份有限公司 | Filter and communication equipment |
-
2016
- 2016-07-05 CN CN201620699147.9U patent/CN205790303U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010888A (en) * | 2018-08-08 | 2020-04-14 | 深圳市大富科技股份有限公司 | Resonator and cavity filter |
| CN111010888B (en) * | 2018-08-08 | 2022-08-12 | 大富科技(安徽)股份有限公司 | Resonator and cavity filter |
| CN113675563A (en) * | 2020-05-14 | 2021-11-19 | 大富科技(安徽)股份有限公司 | Filter and communication equipment |
| CN113675563B (en) * | 2020-05-14 | 2023-03-10 | 大富科技(安徽)股份有限公司 | Filter and communication equipment |
| CN113851803A (en) * | 2020-06-28 | 2021-12-28 | 大富科技(安徽)股份有限公司 | Filter and communication equipment |
| CN112952325A (en) * | 2021-01-29 | 2021-06-11 | 盐城东山通信技术有限公司 | Inductive coupling assembly, cavity filter and communication radio frequency equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205790303U (en) | Cavity body filter | |
| CN209544573U (en) | Filter tuner structure and filter | |
| CN107394332B (en) | Common port coupling device and microwave cavity device | |
| CN209515958U (en) | Cavity body filter and radio frequency communication devices | |
| CN103201897A (en) | Cavity filter | |
| US11929537B2 (en) | Resonator filter | |
| CN110112519A (en) | High bandwidth dielectric waveguide filter | |
| CN207320286U (en) | Coupled structure and communication headend equipment component | |
| CN205921059U (en) | Cavity filter who contains adjustable capacitance coupling structure | |
| CN106549202A (en) | A kind of resonator and cavity body filter | |
| CN207925639U (en) | A kind of filter and communication equipment | |
| EP3764461A1 (en) | Dual mode resonator, filter, and radiofrequency unit | |
| CN208173760U (en) | A kind of cavity body filter being adjustable stiffness of coupling | |
| CN203386877U (en) | Cavity filter and filter cavity | |
| CN205543164U (en) | Wave filter casing | |
| CN107663751B (en) | Fixing structure of iron table top of washing machine | |
| CN204619609U (en) | Leaf filter and the air-treatment unit with it | |
| CN108292483B (en) | The plate face mounting structure of display and the plate face installation method of display | |
| CN205548359U (en) | Cooking device | |
| CN103151587B (en) | Cavity filter | |
| CN210224241U (en) | Low-frequency project ultra-strong capacitive coupling structure | |
| CN209544574U (en) | Tunable filter and adjustable duplexer | |
| CN209517632U (en) | A kind of integrally formed soft or hard combination PCB circuit board | |
| CN209229881U (en) | Air inlet filter screen mounting structure, filter screen air inlet subassembly and air conditioner | |
| CN110021804A (en) | Simple resonant rod drop frequency structure and its filter |
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 |
Granted publication date: 20161207 Termination date: 20210705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |