CN208272094U - A kind of dielectric waveguide filter - Google Patents
A kind of dielectric waveguide filter Download PDFInfo
- Publication number
- CN208272094U CN208272094U CN201820765731.9U CN201820765731U CN208272094U CN 208272094 U CN208272094 U CN 208272094U CN 201820765731 U CN201820765731 U CN 201820765731U CN 208272094 U CN208272094 U CN 208272094U
- Authority
- CN
- China
- Prior art keywords
- resonator
- height
- dielectric waveguide
- waveguide filter
- resonators
- 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 utility model relates to a kind of dielectric waveguide filters, including at least three sequentially connected resonators, are respectively equipped with input port and output port on two resonators at both ends；Window is respectively equipped on the joint face of two adjacent resonators, the window of two adjacent resonators docks to form a coupling window；In at least three resonator, the height of at least one resonator and the height of remaining resonator be not identical.The utility model can realize the inhibition to high far-end harmonic, have the advantages that miniaturization, high stability, low-loss, light weight and cost are low etc. a variety of, can satisfy the miniaturization and high performance requirement of filter.
Description
[technical field]
The utility model relates to wave filter technology fields, more particularly, to a kind of dielectric waveguide filter.
[background technique]
Filter is widely used in the communications field as a kind of frequency selective device, is the critical component in communication system, with
The development of communication system, the requirement to filter are continuously improved, and miniaturization, lightweight are increasingly becoming a kind of trend.Utilize medium
The high dielectric constant of material and the high q-factor of material, Medium Wave Guide can substantially reduce product size, have Insertion Loss small, temperature drift is small
The advantages that.But due to the characteristic of dielectric material, the spuious Property comparison of the far-end harmonic of general dielectric waveguide filter is poor, from logical
Just there is stronger spurious signal with closer frequency, spurious signal can interfere with other systems.
[utility model content]
The purpose of the utility model is to overcome the deficiencies of above-mentioned technology, and providing one kind can be realized high distal end harmonics restraint
Dielectric waveguide filter.
A kind of dielectric waveguide filter provided by the utility model, including at least three sequentially connected resonators, are located at
Input port and output port are respectively equipped on two resonators at both ends；It is set respectively on the joint face of two adjacent resonators
There is window, the window of two adjacent resonators docks to form a coupling window；In at least three resonator, at least one
The height of a resonator and the height of remaining resonator be not identical.
A preferred embodiment as the utility model: the dielectric waveguide filter include three resonators, described three
A resonator is respectively the first resonator, the second resonator and third resonator, first resonator and third resonator
On be respectively equipped with the input port and the output port, first resonator is identical with the height of third resonator, and
Height, the height of third resonator of first resonator are greater than the height of second resonator.
A preferred embodiment as the utility model: the dielectric waveguide filter include seven resonators, described seven
A resonator is respectively the first resonator, the second resonator, third resonator, the 4th resonator, the 5th resonator, the 6th resonance
Device and the 7th resonator are respectively equipped with the input port and the output end on first resonator and the 7th resonator
Mouthful.
A preferred embodiment as the utility model: the third resonator, the 4th resonator and the 5th resonator
It is highly identical；Second resonator is identical with the height of sixth resonator, and the height of second resonator is greater than described the
The height of three resonators；The height of first resonator and the 7th resonator is identical, and the height of first resonator is greater than
The height of second resonator.
A preferred embodiment as the utility model: the height of the third resonator and the 5th resonator is identical；Institute
The height for stating the second resonator, the 4th resonator and sixth resonator is identical, and the height of second resonator is greater than described
The height of third resonator；The height of first resonator and the 7th resonator is identical, and the height of first resonator is big
In the height of second resonator.
A preferred embodiment as the utility model: the resonator includes medium block and is coated on medium block surface
Conductive layer, the window run through corresponding joint face conductive layer.
A preferred embodiment as the utility model: the shape of the resonator is cuboid, and described at least three is humorous
Shake the of same size of device.
A preferred embodiment as the utility model: the cross sectional shape of the coupling window is rectangular, round or terraced
Shape.
Preferred embodiment as the utility model: pass through welded connecting between two adjacent resonators.
Preferred embodiment as the utility model: pass through bonding connection between two adjacent resonators.
The utility model can realize the inhibition to high far-end harmonic, have miniaturization, high stability, low-loss, it is light-weight,
A variety of advantages such as at low cost can satisfy the miniaturization and high performance requirement of filter.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram for dielectric waveguide filter that the utility model first embodiment provides；
Fig. 2 is the side view of dielectric waveguide filter shown in FIG. 1；
Fig. 3 is that the electric property of dielectric filter shown in FIG. 1 emulates schematic diagram one；
Fig. 4 is that the electric property of dielectric filter shown in FIG. 1 emulates schematic diagram two；
Fig. 5 is a kind of side view for dielectric waveguide filter that the utility model second embodiment provides；
Fig. 6 is a kind of side view for dielectric waveguide filter that the utility model 3rd embodiment provides.
[specific embodiment]
The utility model will be further described with reference to the accompanying drawings and examples.
First embodiment
A kind of dielectric waveguide filter provided by the utility model, including at least three sequentially connected resonators, are located at
Input port and output port are respectively equipped on two resonators at both ends.It is set respectively on the joint face of two adjacent resonators
There is window, the window of two adjacent resonators docks to form a coupling window.In at least three resonators, at least one is humorous
The height of vibration device is not identical as the height of remaining resonator.
Specifically, a kind of dielectric waveguide filter provided in this embodiment, including seven resonators, seven resonator difference
For the first resonator 111, the second resonator 112, third resonator 113, the 4th resonator 114, the 5th resonator the 115, the 6th
Resonator 116 and the 7th resonator 117.Wherein, input terminal is respectively equipped on the first resonator 111 and the 7th resonator 117
Mouth 121 and output port 122, for carrying out the transmission of signal.On the joint face of first resonator 111 and the second resonator 112
It is respectively equipped with window, the window of the first resonator 111 is docked with the window of the second resonator 112 to be formed one and couple window 101.With
This analogizes, and the joint face of every two adjacent resonator has been respectively formed on a coupling window 101.
In the present embodiment, third resonator 113, the 4th resonator 114 are identical with the height of the 5th resonator 115.Second
Resonator 112 is identical with the height of sixth resonator 116, and the height of the second resonator 112 is greater than the height of third resonator 113
Degree.First resonator 111 is identical with the height of the 7th resonator 117, and the height of the first resonator 111 is greater than the second resonator
112 height.
In the present embodiment, the shape of resonator is cuboid, and each resonator is of same size.Adjacent two are humorous
Welded connecting can be passed through between vibration device.In addition, can also be connected by conductive adhesive between two adjacent resonators.
Resonator includes medium block and the conductive layer for being coated on medium block surface.Preferably, medium block is ceramic material
Made medium block.It due to ceramic dielectric block dielectric constant with higher and lower dielectric loss, and is a kind of high
The structural support material of intensity, dielectric waveguide filter made of ceramic dielectric block have the characteristics that miniaturization, high stability.
Conductive layer plays electromagnetic shielding action.Preferably, conductive layer is conductive silver layer.Conductive layer made of silver-colored material is led
Electrical property and thermal conductivity are all very good, have splendid shield effectiveness.Intelligible, conductive layer can also use other electric conductivity
It can good metal conducting layer.
The window of resonator runs through the conductive layer of corresponding joint face.It is first that conductive layer is complete when generating the window of resonator
It is coated on the outer surface of entire medium block entirely, then etches window in corresponding conductive layer position.Coupling window 101 does not coat
Conductive layer is non-electromagnetic shield regions.Coupling window 101 exposes the interior medias of two adjacent resonators, and adjacent two
A resonator realizes energy coupling by coupling window 101 on joint face.
In the present embodiment, coupling window 101 cross sectional shape be it is rectangular, alternatively, couple window 101 cross sectional shape
It can also be round or trapezoidal.
Fig. 4 is that the electric property of the present embodiment emulates schematic diagram one.Wherein, curve S11 indicates Jie provided in this embodiment
The amplitude-versus-frequency curve of matter waveguide filter, S12 indicate the return loss plot of signal.From curve S11 and S12 it is found that medium
The passband of waveguide filter is 2.57-2.64GHz.In the frequency range, the return loss of signal in -20dB hereinafter, to
Signal can be almost without damply passing through dielectric waveguide filter；Other frequency signals outside passband are passing through medium wave
Significantly decay when waveguide filter, therefore has obtained good inhibition.
Fig. 5 is that the electric property of the present embodiment emulates schematic diagram two.Wherein, curve L1 indicates the amplitude-frequency of conventional filter
Characteristic curve, curve L2 indicate the amplitude-versus-frequency curve of dielectric waveguide filter provided in this embodiment.Compare L1 and L2, it is conventional
Filter passband outside there is apparent spurious signal, these spurious signals can further interfere other systems；And it is situated between
Rejection of the matter waveguide filter outside passband is significantly better than the rejection of Conventional filters, closer apart from passband
Position, spurious signal obtained preferable inhibition, reduced the interference to other systems.
The utility model characteristic inconsistent by the harmonic wave using different height resonator, realizes to high far-end harmonic
Inhibition, while also having the advantages that miniaturization, high stability, low-loss, light weight and cost are low etc. a variety of, meet filter
Miniaturization and high performance requirement.
Second embodiment
With reference to Fig. 5, the present embodiment different from the first embodiment: the present embodiment carries out the height of seven resonators
Adjustment.
Specifically, third resonator 213 is identical with the height of the 5th resonator 215 in the present embodiment.Second resonator
212, the height of the 4th resonator 214 and sixth resonator 216 is identical, and the height of the second resonator 212 is greater than third resonance
The height of device 213.First resonator 211 is identical with the height of the 7th resonator 217, and the height of the first resonator 211 is greater than the
The height of two resonators 212.
3rd embodiment
With reference to Fig. 5, the present embodiment is unlike the first, second embodiment: the present embodiment is to dielectric waveguide filter
Number of resonators is adjusted.
Specifically, dielectric waveguide filter provided in this embodiment includes three resonators, three resonators are respectively the
One resonator 311, the second resonator 312 and third resonator 313.On first resonator 311 and third resonator 313 respectively
Equipped with the output port of input port 321 and 322.First resonator 311 is identical with the height of third resonator 313, and first is humorous
The height of device 311, the height of third resonator 313 of shaking are greater than the height of the second resonator 312.
Above embodiments only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, such as to each implementation
Different characteristic in example is combined, and these are all within the protection scope of the present invention.
Claims (10)
1. a kind of dielectric waveguide filter, which is characterized in that including at least three sequentially connected resonators, positioned at the two of both ends
Input port and output port are respectively equipped on a resonator；It is respectively equipped with window on the joint face of two adjacent resonators,
The window of two adjacent resonators docks to form a coupling window；In at least three resonator, at least one resonance
The height of device and the height of remaining resonator be not identical.
2. dielectric waveguide filter according to claim 1, it is characterised in that: the dielectric waveguide filter includes three
Resonator, three resonators are respectively the first resonator, the second resonator and third resonator, first resonator
Be respectively equipped with the input port and the output port on third resonator, first resonator and third resonator
It is highly identical, and the height of the first resonator, the height of third resonator are greater than the height of second resonator.
3. dielectric waveguide filter according to claim 1, it is characterised in that: the dielectric waveguide filter includes seven
Resonator, seven resonators are respectively the first resonator, the second resonator, third resonator, the 4th resonator, the 5th humorous
Shake device, sixth resonator and the 7th resonator, is respectively equipped with the input terminal on first resonator and the 7th resonator
Mouth and the output port.
4. dielectric waveguide filter according to claim 3, it is characterised in that: the third resonator, the 4th resonator
It is identical with the height of the 5th resonator；Second resonator is identical with the height of sixth resonator, second resonator
Height is greater than the height of the third resonator；The height of first resonator and the 7th resonator is identical, and described first is humorous
The height of vibration device is greater than the height of second resonator.
5. dielectric waveguide filter according to claim 3, it is characterised in that: the third resonator and the 5th resonator
Height it is identical；The height of second resonator, the 4th resonator and sixth resonator is identical, second resonator
Height is greater than the height of the third resonator；The height of first resonator and the 7th resonator is identical, and described first is humorous
The height of vibration device is greater than the height of second resonator.
6. dielectric waveguide filter according to claim 1, it is characterised in that: the resonator includes medium block and packet
The conductive layer on medium block surface is overlayed on, the window runs through the conductive layer of corresponding joint face.
7. dielectric waveguide filter according to claim 1, it is characterised in that: the shape of the resonator is cuboid,
At least three resonator it is of same size.
8. dielectric waveguide filter according to claim 1, it is characterised in that: the cross sectional shape of the coupling window is side
Shape, circle or trapezoidal.
9. dielectric waveguide filter according to claim 1, it is characterised in that: pass through weldering between two adjacent resonators
It connects in succession.
10. dielectric waveguide filter according to claim 1, it is characterised in that: pass through between two adjacent resonators
Bonding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820765731.9U CN208272094U (en) | 2018-05-22 | 2018-05-22 | A kind of dielectric waveguide filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820765731.9U CN208272094U (en) | 2018-05-22 | 2018-05-22 | A kind of dielectric waveguide filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208272094U true CN208272094U (en) | 2018-12-21 |
Family
ID=64684980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820765731.9U Active CN208272094U (en) | 2018-05-22 | 2018-05-22 | A kind of dielectric waveguide filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208272094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768359A (en) * | 2019-02-20 | 2019-05-17 | 武汉凡谷电子技术股份有限公司 | A kind of filter of the improvement harmonic wave of mixing chamber and hybrid guided mode composition |
-
2018
- 2018-05-22 CN CN201820765731.9U patent/CN208272094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768359A (en) * | 2019-02-20 | 2019-05-17 | 武汉凡谷电子技术股份有限公司 | A kind of filter of the improvement harmonic wave of mixing chamber and hybrid guided mode composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9843083B2 (en) | Multi-mode filter having a dielectric resonator mounted on a carrier and surrounded by a trench | |
| CN108539337B (en) | A kind of novel crossed coupling membrane low-pass filter | |
| CN102280677A (en) | Dual-bandpass high-temperature superconducting filter | |
| CN101609915A (en) | A kind of LTCC bandpass filter with image suppression | |
| CN103367844A (en) | Multi-branch loading-based three passband high-temperature superconductive filter | |
| CN110459843A (en) | A kind of dielectric waveguide filter | |
| CN110808440A (en) | Dielectric waveguide duplexer | |
| CN102386882B (en) | Signal transmission device, filter, and inter-substrate communication device | |
| CN101621147B (en) | 2.4-kilomegahertz miniature band-pass filter with low loss and double-zero | |
| CN103972622B (en) | A kind of cavity body filter and communication radio frequency device | |
| CN208272094U (en) | A kind of dielectric waveguide filter | |
| US8836451B2 (en) | Wideband high frequency bandpass filter | |
| CN209184569U (en) | A kind of novel medium ceramics low-pass filter | |
| CN111540988A (en) | Ultra-thin flexible circuit bow tie artificial surface plasma microwave broadband band-pass filter | |
| CN201408828Y (en) | LTCC image frequency suppression band-pass filter | |
| US7436274B2 (en) | Band-pass filter | |
| KR101216433B1 (en) | High-pass filter using metameterial | |
| KR101252687B1 (en) | Low-pass filter using metameterial | |
| CN201838691U (en) | Double passband high temperature superconducting filter | |
| CN209981435U (en) | Microstrip band-pass filter of WLAN frequency channel | |
| US7489214B2 (en) | Low-pass filter | |
| CN212342781U (en) | Filter and radio transceiver | |
| CN210576354U (en) | LTCC band-pass filter | |
| KR20180052725A (en) | Filtering unit and filter | |
| CN205564932U (en) | Novel super broadband band -pass filter of LTCC |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 5th floor, building 1, Guoren science and Technology Park, the intersection of Jinxiu middle road and Cuijing Road, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Guoren Technology Co., Ltd Address before: 518000 7F, B 7F, China Science and technology three road, central high tech Zone, Shenzhen, Guangdong Patentee before: Shenzhen GrenTech Corporation |
|
| CP03 | Change of name, title or address |