CN108832240A - The dielectric waveguide filter that distal end inhibits can be improved - Google Patents
The dielectric waveguide filter that distal end inhibits can be improved Download PDFInfo
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- CN108832240A CN108832240A CN201810582848.8A CN201810582848A CN108832240A CN 108832240 A CN108832240 A CN 108832240A CN 201810582848 A CN201810582848 A CN 201810582848A CN 108832240 A CN108832240 A CN 108832240A
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- 230000008878 coupling Effects 0.000 claims abstract description 25
- 238000010168 coupling process Methods 0.000 claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 claims abstract description 25
- 239000003989 dielectric material Substances 0.000 claims abstract description 10
- 230000008054 signal transmission Effects 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 6
- 230000002401 inhibitory effect Effects 0.000 claims description 13
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000035772 mutation Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000002305 electric material Substances 0.000 claims 1
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 238000004088 simulation Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 3
- 229930006000 Sucrose Natural products 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000005720 sucrose Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/2002—Dielectric waveguide filters
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
This application discloses one kind can improve the dielectric waveguide filter that distal end inhibits, including at least two ontology made of solid dielectric material, multiple ontologies are combined by way of stacking, the body surface is coated with conductive layer, the ontology includes at least two U-shaped input and output electrode, U-shaped input and output electrode surface is without conductive layer, the ontology includes the multiple resonators being arranged, the resonator is split by the coupling device between the adjacent resonator, signal transmission window is offered between the coincidence face of multiple ontologies, signal transmission window surface is without conductive layer.Output electrode is exported by optimization U-shaped, can weaken input/output port elapse second harmonic position can toward farther place the coupling amplitude of the higher order resonances mode of Medium Wave Guide, and reduce the amplitude of 2 subharmonic.
Description
Technical field
The application belongs to field of communication technology, more particularly to a kind of dielectric waveguide filter.
Background technique
The present invention relates to David R.Heine et al., and the patent US005926079A authorized is obtained on July 20th, 1999,
And 104871364 A of patent CN filed in R. Fan Jiala et al. on August 26th, 2015, wherein Jie of above-mentioned patent disclosure
Matter waveguide filter forms through-hole or blind hole and external coaxial connector by drilling to achieve the purpose that the input and output of signal.
Such structure processing is complicated, and accuracy requirement is higher, distally inhibits less desirable, generally 1.3-1.4 times of centre frequency position
It has had already appeared harmonic wave and harmonic amplitude is higher, it can only be by adding low-pass filtering outside in the case where thering is inhibition to require the frequency range
Device processing can be only achieved preferable effect, but can not only bring the folded of insertion loss after being superimposed low-pass filter under normal circumstances
Add, overall volume also will increase.
Furthermore R. Fan Jiala et al. is filed on August 26th, 2015 in 104871364 A of patent CN, by using heap
Multiple dielectrics are stitched together to achieve the purpose that reduce outer dimension by folded mode, but such method makes filter
Pass input and output are no longer at the bottom of filter, make filter when installing to communication system on after, it is still desirable to
The other forms such as cable lead to the signal of filter on the circuit board of communication system, are unfavorable for system compact and system collection
At.
Summary of the invention
The purpose of the present invention is to provide one kind can improve the dielectric waveguide filter that distal end inhibits, to overcome the prior art
Deficiency.
To achieve the above object, the present invention provides the following technical solutions：
The embodiment of the present application discloses a kind of dielectric waveguide filter that can improve distal end and inhibit, including at least two is by solid-state
Ontology made of dielectric material, multiple ontologies are combined by way of stacking, and the body surface, which is coated with, leads
Electric layer, the ontology include at least two U-shaped input and output electrode, and U-shaped input and output electrode surface is described without conductive layer
Ontology includes multiple resonators for being arranged, the resonator by the coupling device between the adjacent resonator into
Row is divided, and offers signal transmission window between the coincidence face of multiple ontologies, signal transmission window surface is without conduction
Layer.
Preferably, the above-mentioned dielectric waveguide filter for improving distal end and inhibiting, the U-shaped input and output electrode are located at ontology
Waveguide short side extended surface or long side extended surface.
Preferably, the dielectric waveguide filter for improving distal end and inhibiting, the U-shaped input and output electrode shape is C
The mutation of shape.
Preferably, it is described improve distal end inhibit dielectric waveguide filter, each ontology be disposed with 2 or
Multiple resonators.
Preferably, the dielectric waveguide filter for improving distal end and inhibiting, the coupling device are short to be parallel to waveguide
The through-hole or rectangular recess of edge direction, the through-hole or rooved face are covered with conductive layer.
Preferably, the dielectric waveguide filter for improving distal end and inhibiting, the solid dielectric material are ceramics or stone
English glass.
Preferably, the dielectric waveguide filter for improving distal end and inhibiting, the conductive material are silver or copper.
Compared with the prior art, the advantages of the present invention are as follows：Output electrode is exported by optimization U-shaped, input can be weakened
Output port elapse second harmonic position can toward farther place the coupling amplitude of the higher order resonances mode of Medium Wave Guide, and drop
The amplitude of low 2 subharmonic.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it is clear that described embodiment is only the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
The distal end that improves that Fig. 1 show a 6 chamber setting coupling throughhole inhibits dielectric waveguide filter；
Fig. 2 show a 6 chamber be provided with coupling slot improve distal end inhibit dielectric waveguide filter；
Fig. 3 show multiple embodiments of U-shaped output output electrode of the present invention；
Fig. 4 show the simulation curve figure of the traditional sucrose waveguide filter using blind hole or through-hole input/output format；
Fig. 5 show the simulation curve for improving distal end and inhibiting dielectric waveguide filter using U-shaped output output form
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention 1, and technical solution in the embodiment of the present invention carries out detailed
Description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, those of ordinary skill in the art's every other reality obtained without making creative work
Example is applied, shall fall within the protection scope of the present invention.It is illustrated by taking a 6 chamber resonator as an example below, it should be noted that this case
It is equally applicable to the dielectric waveguide filter of other quantity resonator.
Refering to what is shown in Fig. 1, the dielectric waveguide filter that distal end inhibits can be improved, including：Made of solid dielectric material
Ontology 10 and 20, is combined by way of stacking.Ontology 10,20 surfaces are coated with conductive silver layer.
Ontology 10,20 includes 2 U-shaped input and output electrodes 101,201, and U-shaped input and output electrode 101,201 surfaces do not have
Conductive layer.
More specifically, U-shaped input and output electrode 101 is located on the extended surface of the short side e1 of waveguide resonator；U-shaped input
Output electrode 201 is located on the extended surface of the short side e2 of waveguide resonator
More specifically, by adjusting the groove width of U-shaped input and output electrode 101 and 201, size and positioned at resonator 102
Input and output with the position on 202 surfaces, adjustable filter couple amplitude.
Ontology 10 includes 3 resonators 102,103,104 being arranged, wherein resonator 102 and 103 is by being located at
Coupling throughhole 105a, 105b between adjacent resonators are split；Likewise, resonator 103 and 104 is adjacent humorous by being located at
Coupling throughhole 106a, 107b between vibration device are split.The hole wall of 105a, 105b, 106a, 106b are covered with conductive silver layer.
Likewise, ontology 20 includes 3 resonators 202,203,204 being arranged, wherein resonator 202 and 203 is logical
Coupling throughhole 205a, the 205b crossed between adjacent resonators is split；Likewise, resonator 203 and 204 is by being located at
Coupling throughhole 206a, 207b between adjacent resonators are split.The hole wall of 205a, 205b, 206a, 206b are covered with conduction
Silver layer.
More specifically, coupling throughhole 105a, 105b, 106a, 106b is parallel to the short side e1 of waveguide resonator；Coupling is logical
Hole 205a, 205b, 206a, 206b are parallel to the short side e2 of waveguide resonator；
More specifically, resonator 102 and 103 is carried out by the dielectric material between coupling throughhole 105a and 105b
RF coupling.By adjusting the spacing of 105a and 105b, the RF coupling amount of adjustable 102 resonator 103 of resonator.Together
Sample, the amount of intercoupling between other resonators is controlled by the coupling throughhole being located between two resonators.
Between ontology 10 and 20 coincidence face, signal transmission window 107 and 108,107 He of signal transmission window are offered
108 surfaces do not have conductive layer.
More specifically, radiofrequency signal carries out radio frequency coupling by signal transmission window 107 and 108 between ontology 10 and 20
It closes.
More specifically, the size by adjusting signal transmission window 107 and 108, position, adjustable filtering body
RF coupling amplitude between 10 and 20.
The embodiment has the following advantages that：It designs, can reduce defeated as defeated by using U-shaped input output window appropriate
Out to the coupling amplitude of the higher order resonances mode of Medium Wave Guide, push away 2 subharmonic of dielectric waveguide filter as far as 1.5-1.7 times
Centre frequency；It is distal to 2 subharmonic of the traditional sucrose waveguide filter using blind hole or through-hole input/output format, reduces logical
Believe the demand of link pair low-pass filter.(using 2 times of the traditional sucrose waveguide filter of blind hole or through-hole input/output format
1.3-1.4 times or so in centre frequency of harmonic wave)
By using the U-shaped input/output structure of surface-mount type, filter processing technology is simplified；In addition, Surface Mount U-shaped inputs
Export structure is more suitable for SMT mounting process, reduces the manufacturing cost and use cost of filter.In addition, filter be mounted on it is logical
When in letter system, directly microstrip line can be attached with the waveguide filter U-shaped input/output port by soldering, more
Be conducive to the high integration and Miniaturization Design of communication system.
In the second embodiment, as shown in Fig. 2, the closure of the U-shaped input and output electrode 301 and 401 of filter is punished
It Wei Yu not be on the extended surface of waveguide resonator short side e3 and e4；Further, the open end of U-shaped input and output electrode 301 and 401
It is located on the extended surface of waveguide resonator long side d3 and d4.
Further, the electricity on waveguide resonator long side d3 and d4 extended surface is located at by U-shaped input and output electrode of polishing
Pole slot can achieve the purpose of debugging filter input and output electrode coupling amplitude.
In the second embodiment, as shown in Fig. 2, resonator 302 and 303 is intercoupled by rectangular recess 305.
More specifically, by adjusting the groove width and groove depth of coupling slot 305,306,405,406, adjustable adjacent 2
Coupling amplitude between resonator.
This embodiment can push away 2 subharmonic of dielectric waveguide filter as far as 1.5- as the first embodiment
1.7 times of centre frequencies.
It should be noted that the U-shaped input/output structure is various informative, the first embodiment and the second embodiment are removed
Described in U-shaped input/output structure, further include the mutation input/output structure of U-shaped like shown in Fig. 3.It is situated between by changing
The method that the technical effect is realized in matter waveguide filter input and output shape or position, all should belong to scope of the present application.
Further, solid dielectric material is preferably ceramics.Ceramics dielectric constant with higher, hardness and resistant to high temperature
Performance is also relatively good, therefore becomes the common solid dielectric material in radio-frequency filter field.Certainly, dielectric material can also be selected
Other materials known to those skilled in the art, such as the high molecular polymer of glass, electrical isolation.
Further, the conductive layer is silver.
Conductive layer is preferably the high conductivity materials such as silver.
Dielectric waveguide filter is inputted defeated using through-hole or blind hole and the formation of external coaxial connector in conventional technical means
Exit port is compared under same qualifications using two schemes below：It is identical appearance volume, same media material, identical
Exterior shield effect, index debugging is consistent (with logical in-band insertion loss and proximal end Out-of-band rejection numerical value collectively as comparison
Foundation).
Join shown in Fig. 4, is the Medium Wave Guide that conventional through holes or blind hole and external coaxial connector form input/output port
The simulation curve figure of filter, can following index as seen from the figure：
Centre frequency：3.5GHz；Bandwidth is set：3.4-3.6GHz
The outer second harmonic of distally is located at 4.9GHz, at 1.4 times of centre frequency.
Join shown in Fig. 5, it, can be with for using the simulation curve figure of the dielectric waveguide filter of U-shaped Surface Mount input/output structure
Following index as seen from the figure：
Centre frequency：3.5GHz；Bandwidth is set：3.4-3.6GHz
The outer second harmonic of distally is located at 5.5GHz, at 1.57 times of centre frequency.
It is compared by the Simulation result data of both the above scheme, using the Medium Wave Guide of U-shaped Surface Mount input/output structure
The inhibition of distal end can be improved in filter, and second harmonic position can be toward farther place passage and inhibitory effect is reinforced, examples detailed above master
It is embodied in the Out-of-band rejection index of middle 4.9GHz~6GHz.
And through overtesting, the direction moving distance of the U-shaped input/output port of dielectric waveguide filter to the second resonator
Remoter, the passage of second harmonic position is remoter.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (7)
1. one kind can improve the dielectric waveguide filter that distal end inhibits, which is characterized in that including at least two by solid dielectric material
Manufactured ontology, multiple ontologies are combined by way of stacking, and the body surface is coated with conductive layer, described
Ontology includes at least two U-shaped input and output electrode, and without conductive layer, the ontology includes row on U-shaped input and output electrode surface
Multiple resonators of setting are arranged, the resonator is split by the coupling device between the adjacent resonator, more
Signal transmission window is offered between the coincidence face of a ontology, signal transmission window surface is without conductive layer.
2. the dielectric waveguide filter according to claim 1 for improving distal end and inhibiting, which is characterized in that the U-shaped is defeated
Enter waveguide short side extended surface or long side extended surface that output electrode is located at ontology.
3. the dielectric waveguide filter according to claim 1 for improving distal end and inhibiting, which is characterized in that the U-shaped is defeated
Enter the mutation that output electrode shape is C-shaped.
4. the dielectric waveguide filter according to claim 1 for improving distal end and inhibiting, which is characterized in that each described
Body is disposed with 2 or multiple resonators.
5. the dielectric waveguide filter according to claim 1 for improving distal end and inhibiting, which is characterized in that the coupling dress
It is placed parallel to the through-hole or rectangular recess of waveguide short side direction, the through-hole or rooved face are covered with conductive layer.
6. the dielectric waveguide filter according to claim 1 for improving distal end and inhibiting, which is characterized in that the solid-state is situated between
Electric material is ceramics or quartz glass.
7. the dielectric waveguide filter according to claim 1 for improving distal end and inhibiting, which is characterized in that the conduction material
Material is silver or copper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582848.8A CN108832240B (en) | 2018-06-07 | 2018-06-07 | Dielectric waveguide filter capable of improving far-end inhibition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582848.8A CN108832240B (en) | 2018-06-07 | 2018-06-07 | Dielectric waveguide filter capable of improving far-end inhibition |
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| CN108832240A true CN108832240A (en) | 2018-11-16 |
| CN108832240B CN108832240B (en) | 2024-06-04 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494489A (en) * | 2018-12-06 | 2019-03-19 | 京信通信系统（中国）有限公司 | Filter integrated form antenna for base station |
| CN109560355A (en) * | 2018-12-28 | 2019-04-02 | 重庆思睿创瓷电科技有限公司 | Dielectric, dielectric waveguide filter, radio-frequency module and base station for 5G communication |
| CN109616725A (en) * | 2018-12-29 | 2019-04-12 | 扬州江嘉科技有限公司 | A kind of novel medium waveguide filter |
| CN110224205A (en) * | 2019-05-30 | 2019-09-10 | 江苏灿勤科技股份有限公司 | Surface-mount type dielectric filter containing through-hole type input/output structure |
| CN110336102A (en) * | 2019-07-09 | 2019-10-15 | 重庆思睿创瓷电科技有限公司 | A kind of dielectric waveguide filter, radio-frequency module and base station improving harmonic performance |
| WO2020118523A1 (en) * | 2018-12-11 | 2020-06-18 | 深圳市麦捷微电子科技股份有限公司 | Dielectric waveguide filter having two cavities and four modes |
| WO2020132973A1 (en) * | 2018-12-26 | 2020-07-02 | 华为技术有限公司 | Dielectric filter, duplexer, and communication device |
| CN111384546A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric filter and communication equipment |
| CN114026741A (en) * | 2019-06-26 | 2022-02-08 | Cts公司 | Dielectric waveguide filter with trap resonators |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494489A (en) * | 2018-12-06 | 2019-03-19 | 京信通信系统（中国）有限公司 | Filter integrated form antenna for base station |
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| WO2020118523A1 (en) * | 2018-12-11 | 2020-06-18 | 深圳市麦捷微电子科技股份有限公司 | Dielectric waveguide filter having two cavities and four modes |
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| CN109616725A (en) * | 2018-12-29 | 2019-04-12 | 扬州江嘉科技有限公司 | A kind of novel medium waveguide filter |
| CN111384546A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Dielectric filter and communication equipment |
| CN110224205A (en) * | 2019-05-30 | 2019-09-10 | 江苏灿勤科技股份有限公司 | Surface-mount type dielectric filter containing through-hole type input/output structure |
| CN114026741A (en) * | 2019-06-26 | 2022-02-08 | Cts公司 | Dielectric waveguide filter with trap resonators |
| CN110336102A (en) * | 2019-07-09 | 2019-10-15 | 重庆思睿创瓷电科技有限公司 | A kind of dielectric waveguide filter, radio-frequency module and base station improving harmonic performance |
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| CN108832240B (en) | 2024-06-04 |
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