CN209133656U - A kind of medium block, dielectric waveguide filter and electromagnetic wave device - Google Patents
A kind of medium block, dielectric waveguide filter and electromagnetic wave device Download PDFInfo
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- CN209133656U CN209133656U CN201821391119.6U CN201821391119U CN209133656U CN 209133656 U CN209133656 U CN 209133656U CN 201821391119 U CN201821391119 U CN 201821391119U CN 209133656 U CN209133656 U CN 209133656U
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Abstract
It further includes that at least one is set between dielectric resonance portion for being fixedly connected with the middle part in dielectric resonance portion that the utility model discloses a kind of medium blocks by including multiple dielectric resonance portions；Coupling bandwidth between the dielectric resonance portion that the middle part connects it is less than the 10% of the bandwidth of operation of the dielectric waveguide filter using the medium block.A kind of dielectric waveguide filter and a kind of electromagnetic wave device is also disclosed in the utility model, the utility model by originally must independent multiple medium blocks one is combined under the premise of not changing coupled relation, the assembling process of dielectric waveguide filter can be greatly simplified using the medium block in the utility model, it reduces time-consuming, defect rate brought by position dimension inaccuracy when because of assembly is also reduced, to improve product yield.
Description
Technical field
The utility model relates to communication device components, and in particular to a kind of medium block, dielectric waveguide filter and electromagnetic wave
Equipment.
Background technique
With the development of wireless communication technique, wireless telecom equipment increasingly pursues miniaturization and filter with low insertion loss.Compared to traditional
Metal cavity waveguide filter, dielectric waveguide filter have that small in size, Insertion Loss is small, big, advantages such as at low cost of bearing power.It can
To be applied to wireless base station, rf terminal, in the equipment such as radio frequency or microwave transmitting and receiving component.
Existing dielectric waveguide filter, especially for work under the TE mode, equipped with adjacent and do not couple mutually
The dielectric waveguide filter of medium block is all made of the mode that physically separated multiple medium blocks are assembled and produces, that is,
After first making medium block independent, their assembly are got up again when assembly；Such mutually independent structure is led
It causes medium block type relatively more, a variety of frock clamps is needed when production management and assembling and setting.Meanwhile Medium Wave Guide is filtered
The production of wave device is very high for the required precision of medium block assembling and setting, and deviation once occur in medium block position or alignment relation
Tremendous influence will be caused to the performance of entire dielectric waveguide filter；Therefore in process of production often in order to accurately pacifying
It puts, be aligned these mutually independent medium blocks, need being dismounted and being debugged repeatedly, cause assembling process cumbersome, time-consuming；It is right
Production management, cost control and product yield cause very big influence.
Utility model content
The utility model is intended to provide a kind of medium block, to reduce the medium for being equipped with medium block that is adjacent and not coupling mutually
Assembly difficulty of the waveguide filter in production, and then production cost is reduced, improve the yields of product.
Medium block in the utility model, including multiple dielectric resonance portions further include that at least one is set to dielectric resonance portion
Between for being fixedly connected with the middle part in dielectric resonance portion；
The middle part is so that the coupling bandwidth between its dielectric resonance portion for being connected is less than Jie using the medium block
10% middle part of the bandwidth of operation of matter waveguide filter.
Medium block in the utility model can produce in advance, and position and structure size is controlled in production, by
Then it being fixedly connected, the position and structure size in dielectric resonance portion is fixed, when being assembled in dielectric waveguide filter,
Can integrally assemble, it is no longer necessary to being dismounted and being debugged repeatedly, using the connection of specific middle part dielectric resonance portion it
Between coupling bandwidth be less than using the medium block dielectric waveguide filter bandwidth of operation 10%, be not enough to Medium Wave Guide
The overall performance of filter impacts, and is equivalent between dielectric resonance portion and does not couple.
The necessary independent multiple medium blocks of script are incited somebody to action not by the connection of middle part by the utility model by dielectric resonance portion
It is combined into one under the premise of changing coupled relation, using the medium block in the utility model, can be substantially reduced equipped with adjacent
And assembly difficulty of the dielectric waveguide filter for the medium block not coupled mutually in production, simplify such dielectric waveguide filter
Assembling process, reduce time-consuming, also reduce because of defect rate brought by position dimension inaccuracy when assembly, to improve
Product yield.
Further, the dielectric resonance portion and middle part are one by the integrally formed global facility of dielectric material.
Medium Wave Guide filtering to a certain specifications and models, the quantity for the medium block for needing to produce greatly reduce, accordingly
Also the type of fixture required for just reducing, simplifies production management, optimizes cost.
Further, the middle part includes the interconnecting piece for being connected between the dielectric resonance portion, and for every
Spacer portion from the dielectric resonance portion.
In the dielectric resonance portion of TE mode, intermediate electromagnetic field is very strong, more weaker toward edge electromagnetic field, in adjacent Jie
The spacer portion of a spacer medium resonant structure is added among matter resonant structure, the part of strong-electromagnetic field is kept apart, only retains electromagnetism
The weak part in field is connected with each other；Due to intermediate electromagnetic field intensity, edge electromagnetic field is weak, and such integral structure makes dielectric resonance
Coupling between portion can be very weak, and strap width substantially reduces, and the coupling bandwidth between dielectric resonance portion is small for simple and easy realizing
In the 10% of the bandwidth of operation of the dielectric waveguide filter using the medium block.
Further, the spacer portion is the gap being provided between the dielectric resonance portion.
Such structure is extremely simple, and middle medium easy to produce is manufactured.
Further, the coupling bandwidth between the dielectric resonance portion that the middle part connects it, which is less than, uses the medium block
Dielectric waveguide filter bandwidth of operation 5%, greater than the 2% of the bandwidth of operation.
There is better equivalent performance, while directly proportional by the size that strap is wider than interconnecting piece, and the size of interconnecting piece
It is directly proportional to bonding strength, it is inversely proportional with molding difficulty, this preferred scheme had not only been able to maintain enough bonding strengths, but also made coupling
Crossed belt is wide very small.
Further, the dielectric material is the medium of ceramic material.
The dielectric material performance is good, small in size, is also convenient for forming.
The utility model further relates to a kind of dielectric waveguide filter, including one or more medium blocks, at least one medium
Block is above-mentioned medium block.The dielectric waveguide filter, due to having used above-mentioned medium block, so that production cost is minimized,
Yields is improved, and the production time is reduced.
The utility model further relates to a kind of electromagnetic wave device, including above-mentioned dielectric waveguide filter.
The electromagnetic wave device, due to having used above-mentioned dielectric waveguide filter block, so that production cost is minimized.
Further, the electromagnetic wave device is aircraft, radar, base station or satellite.
It is all the large scale equipment for needing to use dielectric waveguide filter, the reduction of dielectric waveguide filter cost is also brought
The reduction of these large scale equipment costs.
Detailed description of the invention
Fig. 1 is the normal axomometric drawing of one of the utility model embodiment medium block.
Fig. 2 is the graph of relation of the overall width of the coupling bandwidth and interconnecting piece between the dielectric resonance portion in Fig. 1.
Fig. 3 is the top view of another medium block of the medium block being different from Fig. 1 in the utility model embodiment.
Fig. 4 is the top view of another medium block of the medium block being different from Fig. 3 in the utility model embodiment.
Fig. 5 is the top view of another medium block of the medium block being different from Fig. 4 in the utility model embodiment.
Fig. 6 is the top view of another medium block of the medium block being different from Fig. 5 in the utility model embodiment.
Fig. 7 is the mounting structure schematic diagram of the medium block in the dielectric waveguide filter in the utility model embodiment.
Fig. 8 is the schematic block diagram of the base station in the utility model embodiment.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference of the Fig. 1 into Fig. 5 includes: dielectric resonance portion 1, interconnecting piece 2, spacer portion 3.
The utility model embodiment provides a kind of medium block, basic as shown in Figure 1, including two Jie arranged side by side
Matter resonant structure, therebetween there are the gap of a longitudinally through entire medium block, which forms two dielectric resonance portions of isolation
Spacer portion, the part at gap both ends is interconnecting piece, and spacer portion and interconnecting piece together form the middle part on the medium block；It is whole
A medium block is ceramic material, is integrally formed by the way of sintering；When specific production, position and structure size is by being used for
The mold of ceramic post sintering is controlled, the available good guarantee of the consistency of product.
In the dielectric resonance portion of TE mode, intermediate electromagnetic field is very strong, more weaker toward edge electromagnetic field, theoretically medium
Magnetic distribution on four angles of resonant structure is zero.A gap is added among two pieces of adjacent dielectric resonance portions, forceful electric power
The part in magnetic field keeps apart, and only keeps the part connection that edge portions electromagnetic field is weak；Due to intermediate electromagnetic field intensity, edge electromagnetic field
Weak, then such integral structure bring coupling can be very weak.It couples bandwidth (representing stiffness of coupling) and interconnecting piece
Width relation curve as shown in Fig. 2, horizontal axis in figure is the overall width of the interconnecting piece in Fig. 1, unit is millimeter (mm), and
The longitudinal axis is then that bandwidth is coupled brought by interconnecting piece, and unit is megahertz (MHz), and the medium block is applied to a job in TE
Under mode, bandwidth of operation is the dielectric waveguide filter of 100MHz.
As we can see from the figure:
When the overall width of interconnecting piece is less than 2.4mm, it is ensured that it is (low to be less than 10MHZ for coupling bandwidth brought by it
In the 10% of bandwidth of operation), coupling bandwidth is enough small at this time, is not enough to influence the overall performance of dielectric waveguide filter
, that is, can be considered two dielectric resonance portions " not coupling "；
When the overall width of interconnecting piece is less than 2.1mm；It can guarantee that its brought coupling bandwidth is less than 5MHZ and (is lower than
The 5% of bandwidth of operation)；
It is brought to couple bandwidth only 4MHZ when the overall width of interconnecting piece is equal to 2mm；
And if coupling bandwidth brought by it is dropped to 2MHz (the 2% of bandwidth of operation), it needs overall width
It reduces to 1.6mm；
The decline of overall width certainly will bring the reduction of bonding strength and form the rising of difficulty.
Coupling bandwidth drops to the overall width of reduction needed for 4MHz only 0.4mm from 10MHZ, however, by curve in figure it is found that
Coupling bandwidth gradually slows down with the speed of overall width reduction later, so continuing to reduce interconnecting piece to reduce coupling bandwidth
Overall width, sacrifice bonding strength are obviously lost more than gain, so the present embodiment has preferably used 2mm as the beam overall of interconnecting piece
Degree, had not only been able to maintain enough bonding strengths, but also made coupling bandwidth very small.
And in further embodiments, selection is so that coupling bandwidth drops to the connection between the 2%~5% of bandwidth of operation
Portion's overall width is also can property row.
In other some embodiments, according to resonant cavity needed for specific different medium waveguide filter for medium block
Different layouts needs, and can also take the connection pattern different from the medium block in Fig. 1, including but not limited to following example:
A kind of medium block as shown in Figure 3, the at L-shaped shape arrangement in three dielectric resonance portions, does not couple each other；
A kind of medium block as shown in Figure 4, three dielectric resonance portions do not couple each other at rounded projections arranged；
A kind of medium block as shown in Figure 5, two dielectric resonance portions side by side, therebetween along unified straight line, are equipped with a plurality of
Independent gap, quantity can be as shown in the figure two, but not limited to this, it can be more.
A kind of medium block as shown in FIG. 6, side by side, only middle part is connected therebetween, interconnecting piece two in two dielectric resonance portions
Side is using the through slot that is open as spacer portion.
The common feature of these medium blocks is all under TE mode, and the coupling width between dielectric resonance portion is not enough to thereon
The overall performance of dielectric waveguide filter is impacted；Simultaneously as using integrated design and manufacture, dielectric resonance portion
Position and structure size fixed, when being assembled in dielectric waveguide filter, can integrally assemble, it is no longer necessary to anti-
Multiple being dismounted and being debugged, and simplifies that assembling process is cumbersome, reduces time-consuming, is also reduced because position dimension is not when assembly
Defect rate brought by accurate, to improve product yield；Medium Wave Guide filtering to a certain specifications and models, needs to give birth to
The quantity of the medium block of production greatly reduces, and the type of fixture required for also just reducing accordingly simplifies production management, excellent
Cost is changed.
The utility model embodiment additionally provides a kind of dielectric waveguide filter, the medium block in the dielectric waveguide filter
Mounting structure is basic as shown in fig. 7, the feed section of the dielectric waveguide filter is not shown in the figure.
Appended drawing reference in Fig. 7 includes: first medium block 1, first medium resonant structure 11, second medium resonant structure 12,
Three dielectric resonance portions 13, coupling aperture 14, gap 15, second medium block 2.
Dielectric waveguide filter includes first medium block 1 and second medium block 2 stacked on top of one another, and first medium block 1
Then contain sequentially connected first medium resonant structure 11, second medium resonant structure 12 and third dielectric resonance portion 13；First is situated between
The multiple resonance of the dielectric waveguide filter are collectively formed in corresponding portion in mass 1 in each dielectric resonance portion and second medium block 2
Chamber.
In the design of the dielectric waveguide filter, needed between first medium resonant structure 11 and second medium resonant structure 12
Coupling, has then opened up therebetween coupling aperture；
And according to design, without coupling between second medium resonant structure 12 and third dielectric resonance portion 13, then, therebetween
Equipped with gap as spacer portion, and the part except gap then gives over to interconnecting piece, and medium block 1 is collectively formed in spacer portion and interconnecting piece
On middle part；
Then the first medium resonant structure 11 and second medium resonant structure to intercouple is had concurrently simultaneously in first medium block 1
12, and without coupling mutually between the second medium resonant structure 12 not coupled and third dielectric resonance portion 13；
When specific production, need to only be controlled by the mold for ceramic post sintering first medium block be on position and structure ruler
It is very little, it is integrally formed out first medium block, is that second medium block is assembled together.
The utility model also protects a kind of electromagnetic wave device with above-mentioned dielectric waveguide filter, which can
To be any equipment, such as aircraft, radar, base station, satellite etc. for needing to use dielectric waveguide filter.These electromagnetic waves
Equipment can send and receive signal, and be filtered after receipt or before sending, so that the signal received or sent is full
Sufficient demand, thus electromagnetic wave device at least further include the signal emission module being connect with the input terminal of dielectric waveguide filter, with
The signal receiving module of the output end connection of dielectric waveguide filter.
For example, base station includes the duplexer as dielectric waveguide filter, double as shown in figure 8, electromagnetic wave device is base station
Work device includes transmitting band pass filter and collection of letters bandpass filter.The input terminal of transmitting band pass filter connects sender, output
End connection antenna for base station；The input terminal of collection of letters bandpass filter connects antenna for base station, and output end connects receiver.Then for transmitting
Bandpass filter, signal emission module are sender, and signal receiving module is antenna for base station.And for collection of letters bandpass filtering
Device, signal emission module are antenna for base station, and signal receiving module is receiver.
Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively, the affiliated technology neck of utility model before one skilled in the art know the applying date or priority date
All ordinary technical knowledges in domain can know the prior art all in the field, and have using normal before the date
The ability of laboratory facilities is advised, one skilled in the art can be complete in conjunction with self-ability under the enlightenment that the application provides
It is apt to and implements this programme, it is real that some typical known features or known method should not become one skilled in the art
Apply the obstacle of the application.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure
Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence
The effect and patent practicability that the utility model is implemented.This application claims protection scope should be with the content of its claim
Subject to, the records such as specific embodiment in specification can be used for explaining the content of claim.
Claims (9)
1. a kind of medium block, including multiple dielectric resonance portions, it is characterised in that: further include at least one be set to dielectric resonance portion it
Between for being fixedly connected with the middle part in dielectric resonance portion；
The middle part is so that the coupling bandwidth between its dielectric resonance portion for being connected is less than the medium wave using the medium block
10% middle part of the bandwidth of operation of waveguide filter.
2. medium block according to claim 1, it is characterised in that: the dielectric resonance portion and middle part are one by medium material
Expect integrally formed global facility.
3. medium block according to claim 1, it is characterised in that: the middle part includes humorous for being connected to the medium
Interconnecting piece between vibration portion, and the spacer portion for the dielectric resonance portion to be isolated.
4. medium block according to claim 3, it is characterised in that: the spacer portion is to be provided between the dielectric resonance portion
Gap.
5. medium block according to claim 3, it is characterised in that: the dielectric resonance portion that the middle part connects it
Between coupling bandwidth be less than using the medium block dielectric waveguide filter bandwidth of operation 5%, greater than the bandwidth of operation
2%.
6. medium block according to claim 2, it is characterised in that: the dielectric material is the medium of ceramic material.
7. a kind of dielectric waveguide filter, including one or more medium blocks, it is characterised in that: at least one medium block is as weighed
Benefit requires medium block described in 1 to 6 any one.
8. a kind of electromagnetic wave device, it is characterised in that: including dielectric waveguide filter as claimed in claim 7.
9. electromagnetic wave device according to claim 8, it is characterised in that: the electromagnetic wave device is aircraft, radar, base station
Or satellite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821391119.6U CN209133656U (en) | 2018-08-27 | 2018-08-27 | A kind of medium block, dielectric waveguide filter and electromagnetic wave device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821391119.6U CN209133656U (en) | 2018-08-27 | 2018-08-27 | A kind of medium block, dielectric waveguide filter and electromagnetic wave device |
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| Publication Number | Publication Date |
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| CN209133656U true CN209133656U (en) | 2019-07-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005884A1 (en) * | 2021-07-29 | 2023-02-02 | 华为技术有限公司 | Filter and manufacturing method therefor, and antenna |
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2018
- 2018-08-27 CN CN201821391119.6U patent/CN209133656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005884A1 (en) * | 2021-07-29 | 2023-02-02 | 华为技术有限公司 | Filter and manufacturing method therefor, and antenna |
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