CN207705364U - Resonator, close coupling cavity body filter and communication equipment - Google Patents
Resonator, close coupling cavity body filter and communication equipment Download PDFInfo
- Publication number
- CN207705364U CN207705364U CN201721763390.3U CN201721763390U CN207705364U CN 207705364 U CN207705364 U CN 207705364U CN 201721763390 U CN201721763390 U CN 201721763390U CN 207705364 U CN207705364 U CN 207705364U
- Authority
- CN
- China
- Prior art keywords
- rod
- even muscle
- resonator
- capacitive load
- close coupling
- 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.)
- Active
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The close coupling cavity body filter of the application communication equipment, including cavity, at least two resonators, at least two resonator is set in cavity, each resonator includes the body of rod and capacitive load structure, the capacitive load structure includes chassis and shirt rim, the chassis is extended outward to form by the end face of the body of rod upper end, the shirt rim along the body of rod axial direction and is downwardly extending based on the chassis edge, the body of rod between the adjacent resonator, which is connected to each other, even muscle, the shirt rim of the capacitive load structure is equipped with even muscle channel, so that the even muscle connects the two neighboring body of rod via the even muscle channel.The application realizes stronger coupling, while reducing the volume of cavity body filter, reduces production cost, improves productivity effect, and the design bandwidth of filter greatly promotes.
Description
Technical field
This application involves fields of communication technology, more particularly to a kind of cavity body filter and communication equipment.
Background technology
With the development of mobile communication, in base station system bandwidth and filtering requirements it is higher and higher, cavity body filter
As a kind of frequency selection device, for selecting communication signal frequency and filtering out the clutter outside communication signal frequency or interference letter
Number, it is widely used in mobile base station, to reduce inter-modulated signal interference.Currently, generally cavity is used to filter in base station system
Device, cavity body filter in the prior art generally comprise cavity, cover board, resonant rod and tuning screw, and cover board is equipped with screw thread
Hole, tuning screw are stretched by the threaded hole on cover board in resonant cavity, and structure capacitive is formed with resonant rod, and spiral shell is tuned by adjusting
Bar screws in the depth of cavity to adjust the frequency of filter.As shown in Figure 1, general filter will include multiple resonators 101, phase
It is coupled by dowel 102 between adjacent resonator 101.And be that realization system overall volume is small, light-weight requirement, filter
The structure design of resonator capacitor load, capacitive load structure 103 as shown in Figure 1 are generally used in design.It can be with by Fig. 1
See, is limited to capacitive load structure 103, the setting of dowel 102 can only be in the lower section of capacitive load structure 103, resonator
The narrower bandwidth weaker, filter is realized is coupled between 101, it is difficult to meet broadband design requirement.
Therefore, when facing broadband filter, a kind of novel close coupling form is needed, forms close coupling, while realizing band
Wide and small filter.
Invention content
The application realizing broader bandwidth, the filtering of small close coupling cavity mainly solving the technical problems that offer is a kind of
The communication equipment of device and the application cavity body filter, and a kind of resonator for realizing the close coupling cavity body filter is provided.
In order to solve the above technical problems, the technical solution that the application uses is：
There is provided a kind of close coupling cavity body filter comprising cavity, at least two resonators, at least two resonator
It is set in cavity, each resonator includes the body of rod and capacitive load structure, the body of rod between the adjacent resonator
Being connected to each other has even muscle, and the capacitive load structure is equipped with even muscle channel, so that the even muscle connects via the even muscle channel
Connect the two neighboring body of rod.
Wherein, the even muscle includes the base portion extended by two neighboring body of rod bottom end side, and via described
Even muscle channel connects the interconnecting piece on the two neighboring base portion top.
Wherein, the capacitive load structure includes chassis and shirt rim, the end of the disk on the chassis and the body of rod upper end
Face is concordant, and the shirt rim along the body of rod axial direction and is downwardly extending based on the chassis edge, the height of the base portion
Degree is ranging from more than shirt rim bottom end height and the height less than the resonator body of rod.
Wherein, it is equipped with insulating materials between the even muscle and the even inner periphery in muscle channel.
Wherein, there are gaps between the even muscle and the even inner periphery in muscle channel.
Wherein, the even muscle channel be by open up axial along the body of rod of the shirt rim bottom end of the capacitive load structure and
The interconnecting piece of the fluting upwardly extended, the even muscle connects the base portion of both sides via the fluting.
Wherein, the fluting is rectangle or arched door type.
Wherein, the height of the fluting is more than zero to the shirt rim length less than the capacitive load structure.
Wherein, the even muscle channel is provided in the trepanning on the shirt rim of the capacitive load structure, the company of the even muscle
Socket part connects the base portion of both sides via the trepanning.
Wherein, the trepanning is rectangle or round or ellipse.
The application also provides a kind of communication equipment comprising close coupling cavity body filter as described above.
The application also provides a kind of resonator, and the resonator includes the body of rod and capacitive load structure, the capacitive load
Structure is equipped with even muscle channel.
Even muscle channel, realization connect the adjustable resonance of muscle structure height for the setting provided by the present application in capacitive load structure
Device coupled structure, for the more existing resonator coupled structure being typically designed, realize stronger coupling can more meet it is general
Wide band filter design requirement, while the volume of cavity body filter is reduced, so that production cavity body filter materials is reduced, reduces
Production cost improves productivity effect.Material is reduced, the weight saving of cavity body filter, the behaviour such as is readily transported, installs, dismantling
Make.The design bandwidth of filter is greatly promoted.
Description of the drawings
Fig. 1 is existing cavity body filter structural schematic diagram；
Fig. 2 is the structural schematic diagram of one of the application close coupling cavity body filter embodiment；
Fig. 3 is the structural schematic diagram of one of two resonator connection embodiments of the application.
Specific implementation mode
The application is described in detail with embodiment below in conjunction with the accompanying drawings.
Fig. 2 and Fig. 3 are please referred to, respectively the structural schematic diagram of the application close coupling cavity body filter embodiment and this Shen
Please two resonators connection embodiment structural schematic diagram.
The close coupling cavity body filter of the present embodiment includes cavity 200, and at least two resonators are equipped in cavity 200
300, each resonator 300 includes the body of rod 310 and capacitive load structure 320, and the capacitive load structure 320 includes chassis
321 and shirt rim 322, the disk on the chassis 321 is concordant with the end face of 310 upper end of the body of rod, and the shirt rim 322 is with the bottom
It along 310 axial direction of the body of rod and is downwardly extending, the body of rod between the adjacent resonator 300 based on 321 edge of disk
310, which are connected to each other, has even muscle 400, the capacitive load structure 320 to be equipped with even muscle channel, so that the even muscle 400 is via institute
The company's of stating muscle channel connects the two neighboring body of rod 310.Specifically, the even muscle channel is arranged in the capacitive load structure 320
On shirt rim 322.
As shown in Figures 2 and 3, the even muscle 400 includes the base extended by 310 bottom end side of the two neighboring body of rod
Portion 410, and via the interconnecting piece 420 for connecting muscle channel and connecting 410 top of two neighboring base portion.The base of the even muscle 400
The altitude range in portion 410 is the height more than shirt rim bottom end height and less than the resonator body of rod 310.Base portion in the present embodiment
410 height is increased as needed to more than the half of 310 height of the body of rod, greatly increases stiffness of coupling.
In the present embodiment, the even muscle channel be by 322 bottom end of shirt rim of the capacitive load structure 320 open up along institute
The fluting 323 stated 310 axial direction of the body of rod and upwardly extended, the interconnecting piece 420 of the even muscle 400 is via 323 connection two of the fluting
The base portion 410 of side.
In the present embodiment, the cavity 200 includes two chambers being connected, and resonator is respectively equipped in each chamber
300, pass through the even connection of muscle 400 coupling between the body of rod 310 of resonator 300.It is a in some other embodiment, it can also be in chamber
Body 200 includes more than two resonators 300, is separated into different chamber by the way that 200 shape of cavity is arranged between resonator 300,
It is connected with each other between chamber, passes through the even connection of muscle 400 coupling between the body of rod 310 of resonator 300.Extend 310 upper end of the body of rod
Capacitive load structure 320 as described above, equipped with even muscle channel so that the even muscle 400 can be increased as needed, to obtain
Stronger coupling reduces the volume of cavity body filter, so that production cavity body filter materials is reduced, reduces production cost, improves
Productivity effect, the design bandwidth of filter are greatly promoted.
There are gaps between the even muscle 400 and the inner periphery of the fluting 323.More preferably, the connection of the even muscle 400
It is equipped with insulating materials (not shown) between portion 420 and the inner periphery of the fluting 323.
Wherein, the fluting 323 is rectangle, can also be arranged to arched door type or other shapes.The height of the fluting 323
To arrive the shirt rim length less than the capacitive load structure more than zero.In the present embodiment, the fluting 323 is from 322 bottom of shirt rim
Open up always to close to chassis 321, can make even muscle 400 to increase range more flexible.
In further embodiments, the even muscle channel can also be provided in the shirt rim of the capacitive load structure 320
The interconnecting piece 420 of trepanning (not shown) on 322, the even muscle 400 connects the base portion 410 of both sides via the trepanning.Wherein,
The hole shape can be rectangle or round or ellipse or other adapt to the shape for connecting muscle 400.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the claims of the application, every to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field includes similarly in the scope of patent protection of the application.
Claims (10)
1. a kind of close coupling cavity body filter, which is characterized in that it includes cavity, at least two resonators, and described at least two
Resonator is set in cavity, and each resonator includes the body of rod and capacitive load structure, between the adjacent resonator
The body of rod be connected to each other and have even muscle, the capacitive load structure is equipped with even muscle channel, so that the even muscle is via the even muscle
Channel connects the two neighboring body of rod.
2. close coupling cavity body filter according to claim 1, which is characterized in that the even muscle includes by two neighboring institute
The base portion that body of rod bottom end side is extended is stated, and connects the connection on the two neighboring base portion top via the even muscle channel
Portion.
3. close coupling cavity body filter according to claim 2, which is characterized in that the capacitive load structure includes chassis
And shirt rim, the disk on the chassis is concordant with the end face of body of rod upper end, shirt rim edge based on the chassis edge
It the body of rod axial direction and is downwardly extending, the altitude range of the base portion is more than shirt rim bottom end height and less than described
The height of the resonator body of rod.
4. close coupling cavity body filter according to claim 3, which is characterized in that the even muscle channel is by the capacitance
The shirt rim bottom end of loading structure open up along the body of rod axial direction and the fluting that upwardly extends, the interconnecting piece of the even muscle is via institute
State the base portion of fluting connection both sides.
5. close coupling cavity body filter according to claim 4, which is characterized in that the fluting is rectangle or arched door type.
6. close coupling cavity body filter according to claim 4, which is characterized in that the height of the fluting is to be arrived more than zero
Less than the shirt rim length of the capacitive load structure.
7. close coupling cavity body filter according to claim 3, which is characterized in that the even muscle channel is provided in described
The interconnecting piece of trepanning on the shirt rim of capacitive load structure, the even muscle connects the base portion of both sides via the trepanning.
8. according to claim 1~7 any one of them close coupling cavity body filter, which is characterized in that it is described even muscle with it is described
Even be equipped between the inner periphery in muscle channel between insulating materials or the even muscle and the even inner periphery in muscle channel there are
Gap.
9. a kind of communication equipment, which is characterized in that it includes that claim 1~8 any one of them close coupling cavity such as filters
Device.
10. a kind of resonator, which is characterized in that the resonator includes the body of rod and capacitive load structure, the capacitive load knot
Structure is equipped with even muscle channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721763390.3U CN207705364U (en) | 2017-12-15 | 2017-12-15 | Resonator, close coupling cavity body filter and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721763390.3U CN207705364U (en) | 2017-12-15 | 2017-12-15 | Resonator, close coupling cavity body filter and communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207705364U true CN207705364U (en) | 2018-08-07 |
Family
ID=63026864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721763390.3U Active CN207705364U (en) | 2017-12-15 | 2017-12-15 | Resonator, close coupling cavity body filter and communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207705364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676542A (en) * | 2019-09-05 | 2020-01-10 | 京信通信技术(广州)有限公司 | Port coupling structure, filter and radio frequency assembly |
-
2017
- 2017-12-15 CN CN201721763390.3U patent/CN207705364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676542A (en) * | 2019-09-05 | 2020-01-10 | 京信通信技术(广州)有限公司 | Port coupling structure, filter and radio frequency assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6572391B2 (en) | Dielectric filters, transceivers, and base stations | |
| CN110148819B (en) | Capacitive coupling structure of dielectric waveguide filter and dielectric waveguide filter | |
| US20160141748A1 (en) | Antenna device using ebg structure, wireless communication device, and radar device | |
| CN206864583U (en) | A kind of dielectric filter be easy to regulating frequency and couple bandwidth | |
| CN109786901A (en) | A kind of dielectric filter with capacitive coupling structure | |
| CN105680125A (en) | Ceramic filter using stepped impedance resonators | |
| US9105984B2 (en) | Wireless communication device with slot antenna | |
| CN106025532B (en) | A kind of dual-layer atenna | |
| CN104466361A (en) | Mobile phone and antenna thereof | |
| CN207705364U (en) | Resonator, close coupling cavity body filter and communication equipment | |
| US11145945B2 (en) | Dielectric filter | |
| US9761947B2 (en) | Antenna oscillator structure | |
| CN107394332B (en) | Common port coupling device and microwave cavity device | |
| CN206364163U (en) | A kind of band resistance combiner of same frequency ultra-wide passband | |
| CN107579321A (en) | A kind of minor matters load coaxial cavity harmonic supression filter | |
| CN105470617A (en) | Dual-mode resonator | |
| CN208208942U (en) | A kind of perception cross coupling structure | |
| CN204652320U (en) | A kind of miniaturized multilayer bluetooth band pass filter | |
| CN207303308U (en) | Bandstop filter and radio-frequency devices | |
| CN106549202A (en) | A kind of resonator and cavity body filter | |
| CN206864593U (en) | A kind of cavity body filter | |
| EP3525281B1 (en) | Combiner and antenna device | |
| WO2014101320A1 (en) | An adjustable coupling for use with an input resonator and/or an output resonator of a bandpass filter | |
| CN104332683B (en) | A kind of dual-passband hexagon wave filter for being applied to PCS ＆ WiMAX frequency ranges | |
| KR200403175Y1 (en) | Uneven Shape Cavity Filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co.,Ltd. Patentee after: Chengdu Xunji Tianyun Technology Co.,Ltd. Address before: 518104 First, Second and Third Floors of A1, A2, A3 101, A4 of Shajing Street, Shajing Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. Patentee before: CHENGDU TATFOOK TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210203 Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co.,Ltd. Address before: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee before: Dafu Technology (Anhui) Co.,Ltd. Patentee before: Chengdu Xunji Tianyun Technology Co.,Ltd. |