CN208889817U - A kind of microwave band-elimination filter - Google Patents
A kind of microwave band-elimination filter Download PDFInfo
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- CN208889817U CN208889817U CN201821855212.8U CN201821855212U CN208889817U CN 208889817 U CN208889817 U CN 208889817U CN 201821855212 U CN201821855212 U CN 201821855212U CN 208889817 U CN208889817 U CN 208889817U
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- rectangular patch
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- microstrip line
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Abstract
The utility model discloses a kind of microwave band-elimination filters, its structure includes dielectric-slab, main microstrip line, first rectangular patch, second rectangular patch, third rectangular patch, 4th rectangular patch, 5th rectangular patch, radius is the circle of 1mm, 6th rectangular patch and lump port, the utility model discloses a kind of microwave band-elimination filters, it solves when the interference problem in some frequency band (some range) is very serious, or it says in the case where spuious output problem, the inadequate problem of inhibiting effect, merge the first rectangular patch with it by setting upper at left and right sides of main microstrip line, second rectangular patch, third rectangular patch, 4th rectangular patch, 5th rectangular patch and the 6th rectangular patch enhance inhibitory effect, it is punched in main microstrip line, cut out the circle that radius on patch is 1mm, it is able to adjust main microstrip line Centre frequency reaches enhancing Out-of-band rejection effect, reduces the beneficial effect of insertion loss.
Description
Technical field
The utility model relates to wave filter technology fields, and in particular to a kind of microwave band-elimination filter.
Background technique
Because spectrum application is in short supply, our requirements to passive filter also can be more and more, so microwave filter
Application it is also just more and more common, it is general it be to inhibit and the interference signal in blocking channel and noise etc. for selection signal,
Various systems, the band resistance filter such as the communication of example microwave and millimeter wave, remote sensing and Radar Technology, satellite communication are popularized in the use of microwave filter
Wave device is also known as notch filter, because bandstop filter is the filter that the frequency for taking less than us is removed, we are used in
The occasion of tiny signal is handled, because commercial power frequency is exchange restricting the number, electromagnetic induction interference is tended to have, selects bandstop filter
Maximum reason be exactly to remove AC noise, AC noise is not only 2 times of fundamental frequency, and is 3 times of component, in order to delete
Unwanted frequency section is gone, in other words, intermediate certain section of noise of going out will select notch filter, with science and technology
Rapid development, microwave band-elimination filter have also obtained technological improvement, but the prior art, when in some frequency band (some range)
When interior interference problem is very serious, or say that inhibiting effect is inadequate in the case where spuious output problem.
Utility model content
(1) technical problems to be solved
In order to overcome the shortage of prior art, it is proposed that a kind of microwave band-elimination filter is solved when in some frequency band (certain
A range) in interference problem it is very serious when, or say in the case where spuious output problem, inhibiting effect is inadequate to ask
Topic has reached the effect of enhancing Out-of-band rejection, has reduced the beneficial effect of insertion loss.
(2) technical solution
The utility model is achieved through the following technical solutions: the utility model proposes a kind of microwave band-elimination filter, packets
Include dielectric-slab, main microstrip line, lump port, the first rectangular patch, the second rectangular patch, third rectangular patch, the 4th rectangle patch
Piece, the 5th rectangular patch, the circle and the 6th rectangular patch that radius is 1mm, the main microstrip line bottom end and dielectric-slab top middle portion
Horizontal bonding is carried out, first rectangular patch bottom end carries out horizontal bonding, the first rectangular patch right side with dielectric-slab top
End and the progress of main microstrip line left end are horizontal bonding, and second rectangular patch bottom end carries out horizontal bonding, institute with dielectric-slab top
It is bonding with the first rectangular patch left end carry out level to state the second rectangular patch right end, third rectangular patch bottom end and dielectric-slab
Top carries out horizontal bonding, and third rectangular patch rear end middle part and the progress of the second rectangular patch front end are horizontal bonding, described
4th rectangular patch bottom end carries out horizontal bonding, the 4th rectangular patch left end middle part and third rectangle patch with dielectric-slab top
Piece right end carries out horizontal bonding, and the 5th rectangular patch bottom end carries out horizontal bonding, the 5th rectangle with dielectric-slab top
Carried out with the 5th rectangular patch front end in the middle part of patch rear end it is be bonded, the half dog points that the radius is 1mm and main microstrip line top into
The horizontal bonding of row, the 6th rectangular patch bottom end carries out horizontal bonding, the 6th rectangular patch right end with dielectric-slab top
Horizontal bonding with progress on front side of main microstrip line left end, the lump port is arranged in the middle part of dielectric-slab rear end.
Further, it there are two the first rectangular patch settings, is located on front side of main microstrip line left end and after right end
Side, and having a size of 2.84 × 6.35mm.
Further, there are two the second rectangular patch settings, two the first rectangular patch left ends, and ruler are located at
Very little is 1.42 × 7mm.
Further, there are four the third rectangular patch settings, two one group, it is divided into positioned at each second rectangular patch
Rear and front end, and having a size of 3 × 0.7mm.
Further, the 4th rectangular patch is arranged by eight, two one group, is divided into positioned at each third rectangular patch
Left and right ends, and having a size of 0.7 × 1.5mm.
Further, the 5th rectangular patch is provided with 16, two one group, is divided into and pasting positioned at each 4th rectangle
Piece rear and front end, and having a size of 1.5 × 0.7mm.
Further, the radius is that the circle of 1mm is provided with 12, and with main microstrip line central circular patch radius one
It causes.
Further, the dielectric board substrate material is FR4 isolation material.
Further, the dielectric-slab bottom and top layer material are copper.
(3) beneficial effect
The utility model compared with the existing technology, has the advantages that
1) it is, solution when the interference problem in some frequency band (some range) is very serious, or says spuious
In the case where output problem, the inadequate problem of inhibiting effect, the design proposes the design of the first rectangular patch, solves when at certain
It when interference problem in a frequency band (some range) is very serious, or says in the case where spuious output problem, inhibits to make
With inadequate problem, by left and right sides of main microstrip line upper be arranged merge the first rectangular patch, the second rectangular patch, the with it
Three rectangular patches, the 4th rectangular patch, the 5th rectangular patch and the 6th rectangular patch enhance inhibitory effect, beat in main microstrip line
Hole cuts out the circle that radius on patch is 1mm, is able to adjust the centre frequency of main microstrip line, reaches enhancing Out-of-band rejection effect, subtracts
The beneficial effect of few insertion loss.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the band stop filter structure schematic diagram of the utility model；
Fig. 2 is the bandstop filter top-most-surface plane structural schematic diagram of the utility model；
Fig. 3 is the bandstop filter floor plane structural schematic diagram of the utility model；
Fig. 4 is the S11 structural schematic diagram of the bandstop filter of the utility model；
Fig. 5 is the S21 structural schematic diagram of the bandstop filter of the utility model；
In figure: dielectric-slab -1, main microstrip line -2, the first rectangular patch -3, the second rectangular patch -4, third rectangular patch -
5, the 4th rectangular patch -6, the 5th rectangular patch -7, circle -8, the 6th rectangular patch -9, lump port -10 that radius is 1mm.
Specific embodiment
In the technical program:
First rectangular patch 3, the second rectangular patch 4, third rectangular patch 5, the 4th rectangular patch 6, the 5th rectangular patch
7, radius is 1mm circle 8, the 6th rectangular patch 9 are that the utility model contains the innovative component of essence.
Dielectric-slab 1, main microstrip line 2, lump port 10 are to realize the essential connectivity of technical solutions of the utility model
Component.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 are please referred to, the utility model provides a kind of microwave band-elimination filter: including medium
Plate 1, main microstrip line 2, lump port 10, the first rectangular patch 3, the second rectangular patch 4, third rectangular patch 5, the 4th rectangle patch
Piece 6, the 5th rectangular patch 7, the circle 8 and the 6th rectangular patch 9 that radius is 1mm, in main 2 bottom end of microstrip line and 1 top of dielectric-slab
Portion carries out horizontal bonding, 3 bottom end of the first rectangular patch carried out with 1 top of dielectric-slab it is horizontal bonding, 3 right end of the first rectangular patch and
Main 2 left end of microstrip line carries out horizontal bonding, and 4 bottom end of the second rectangular patch carries out horizontal bonding, the second rectangle with 1 top of dielectric-slab
4 right end of patch carries out horizontal bonding, 5 bottom end of third rectangular patch and 1 top of dielectric-slab progress water with 3 left end of the first rectangular patch
Flat bonding, 5 rear end of third rectangular patch middle part carry out horizontal bonding, 6 bottom end of the 4th rectangular patch with 4 front end of the second rectangular patch
It is horizontal bonding with the progress of 1 top of dielectric-slab, horizontal glue is carried out in the middle part of 6 left end of the 4th rectangular patch with 5 right end of third rectangular patch
It connects, 7 bottom end of the 5th rectangular patch carries out horizontal bonding, 7 rear end of the 5th rectangular patch middle part and the 5th rectangle with 1 top of dielectric-slab
7 front end of patch is bonded, and 8 bottom end of circle that radius is 1mm carries out horizontal bonding, the 6th rectangular patch 9 with main 2 top of microstrip line
Bottom end and the progress of 1 top of dielectric-slab are horizontal bonding, and horizontal glue is carried out on front side of 9 right end of the 6th rectangular patch and main 2 left end of microstrip line
It connects, lump port 10 is arranged in the middle part of 1 rear end of dielectric-slab.
Wherein, it there are two the settings of the first rectangular patch 3, is located on front side of main 2 left end of microstrip line and on rear side of right end,
And having a size of 2.84 × 6.35mm, it can effectively enhance Out-of-band rejection effect.
Wherein, there are two the settings of the second rectangular patch 4, two 3 left ends of the first rectangular patch, and size are located at
For 1.42 × 7mm, it can effectively enhance Out-of-band rejection effect.
Wherein, there are four the settings of third rectangular patch 5, two one group, it is divided into before each second rectangular patch 4
Both ends afterwards, and having a size of 3 × 0.7mm, it can effectively enhance Out-of-band rejection effect.
Wherein, the 4th rectangular patch 6 is arranged by eight, two one group, is divided into left positioned at each third rectangular patch 5
Right both ends, and having a size of 0.7 × 1.5mm, it can effectively enhance Out-of-band rejection effect.
Wherein, the 5th rectangular patch 7 is provided with 16, two one group, is divided into positioned at each 4th rectangular patch 6
Rear and front end, and having a size of 1.5 × 0.7mm, it can effectively enhance Out-of-band rejection effect.
Wherein, the radius is provided with 12 for the circle 8 of 1mm, and consistent with main 2 central circular patch radius of microstrip line
The centre frequency of main microstrip line 2 can effectively be adjusted.
Wherein, the 1 substrate material of dielectric-slab is FR4 isolation material, and insulation effect is good, and use scope is wide.
Wherein, 1 bottom of dielectric-slab and top layer material are copper, and thermally conductive endothermic effect is good.
1 substrate material of scutum described in this patent is FR4 isolation material, and FR-4 is a kind of code name of flame resistant material grade,
A kind of representative material specification for meaning resin material and allowing for self-extinguish by combustion state, it is not a kind of material
Material title, but a kind of material rate, therefore FR-4 grade material used in general circuit plate just has very more types at present,
But majority is all with the epoxy resin of so-called four function (Tera-Function) plus filler (Filler) and glass
The composite material that fiber is made.
Working principle: in the structure change of the enterprising row metal patch of FR4_epoxy dielectric-slab 1 of a 50mm × 30mm,
Divide in the main microstrip line 2 of rectangle that 1 middle position of dielectric-slab is one 2.84 × 50 away from branch is increased at edge 15.26mm
The both sides of main microstrip line 2, Liang Ge branch respectively 2.84 × 6.35 the first rectangular patch 3, then on the two rectangles after
Second rectangular patch 4 of continuous superposition 1.42 × 7, the third rectangle of superposition 3 × 0.7 is continued on the wide both sides of the rectangle of each branch
Patch 5, the wide both ends of the rectangle again fold 0.7 × 1.5 the 4th rectangular patch 6 of rectangle, continue on this basis superposition 1.5 ×
0.7 the 5th rectangular patch 7 reaches two most complicated branches with regard to this, later, to adjust bandwidth, in the one side of main microstrip line 2
Symmetric position increase by one 5 × 2.84 the 6th rectangular patch 9, all rectangles are finally merged with master tape line, master tape line
Lump port 10, which is provided with, with the two sides of bottom to connect then on this basis, using punching, cuts out radius on patch
It for the circle 8 of 1mm, is able to adjust his centre frequency, the design proposes the design of the first rectangular patch 3, solves when at some
When interference problem in frequency band (some range) is very serious, or say in the case where spuious output problem, inhibiting effect
Inadequate problem, by left and right sides of main microstrip line 2 it is upper be arranged merge with it the first rectangular patch 3, the second rectangular patch 4,
Third rectangular patch 5, the 4th rectangular patch 6, the 5th rectangular patch 7 and the 6th rectangular patch 9 enhance inhibitory effect, in main micro-strip
Line 2 punches, and cuts out the circle 8 that radius on patch is 1mm, is able to adjust the centre frequency of main microstrip line 2, reaches enhancing Out-of-band rejection
Effect, reduces the beneficial effect of insertion loss.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein.It should not treat any reference in the claims as limiting related right
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of microwave band-elimination filter, including dielectric-slab (1), main microstrip line (2) and lump port (10), it is characterised in that:
It further include the first rectangular patch (3), the second rectangular patch (4), third rectangular patch (5), the 4th rectangular patch (6), the 5th square
Shape patch (7), the circle (8) and the 6th rectangular patch (9) that radius is 1mm, main microstrip line (2) bottom end and dielectric-slab (1) are pushed up
End middle part carries out horizontal bonding, and the first rectangular patch (3) bottom end and the progress of dielectric-slab (1) top are horizontal bonding, and described the
One rectangular patch (3) right end carries out horizontal bonding, the second rectangular patch (4) bottom end and medium with main microstrip line (2) left end
Plate (1) top carries out horizontal bonding, and the second rectangular patch (4) right end and the first rectangular patch (3) left end carry out horizontal viscous
It connects, third rectangular patch (5) bottom end carries out horizontal bonding, third rectangular patch (5) rear end with dielectric-slab (1) top
Middle part carries out horizontal bonding, the 4th rectangular patch (6) bottom end and dielectric-slab (1) top with the second rectangular patch (4) front end
Horizontal bonding is carried out, the 4th rectangular patch (6) the left end middle part carries out horizontal bonding, institute with third rectangular patch (5) right end
It states the 5th rectangular patch (7) bottom end and carries out horizontal bonding, the 5th rectangular patch (7) the rear end middle part with dielectric-slab (1) top
Be bonded, the radius is 1mm circle (8) bottom end and main microstrip line (2) top progress water are carried out with the 5th rectangular patch (7) front end
Flat bonding, the 6th rectangular patch (9) bottom end carry out horizontal bonding, the 6th rectangular patch (9) with dielectric-slab (1) top
Right end and progress on front side of main microstrip line (2) left end are horizontal bonding, and the lump port (10) is arranged in dielectric-slab (1) rear end
Portion.
2. a kind of microwave band-elimination filter according to claim 1, it is characterised in that: first rectangular patch (3) sets
There are two setting, it is located on front side of main microstrip line (2) left end and on rear side of right end, and having a size of 2.84 × 6.35mm.
3. a kind of microwave band-elimination filter according to claim 1, it is characterised in that: second rectangular patch (4) sets
There are two setting, two the first rectangular patch (3) left ends are located at, and having a size of 1.42 × 7mm.
4. a kind of microwave band-elimination filter according to claim 1, it is characterised in that: the third rectangular patch (5) sets
There are four setting, two one group, it is divided into positioned at each second rectangular patch (4) rear and front end, and having a size of 3 × 0.7mm.
5. a kind of microwave band-elimination filter according to claim 1, it is characterised in that: the 4th rectangular patch (6) sets
It sets by eight, two one group, is divided into positioned at each third rectangular patch (5) left and right ends, and having a size of 0.7 × 1.5mm.
6. a kind of microwave band-elimination filter according to claim 1, it is characterised in that: the 5th rectangular patch (7) sets
16 are equipped with, two one group, is divided into positioned at each 4th rectangular patch (6) rear and front end, and having a size of 1.5 × 0.7mm.
7. a kind of microwave band-elimination filter according to claim 1, it is characterised in that: the radius is that the circle (8) of 1mm is set
12 are equipped with, and consistent with main microstrip line (2) central circular patch radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821855212.8U CN208889817U (en) | 2018-11-12 | 2018-11-12 | A kind of microwave band-elimination filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821855212.8U CN208889817U (en) | 2018-11-12 | 2018-11-12 | A kind of microwave band-elimination filter |
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| Publication Number | Publication Date |
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| CN208889817U true CN208889817U (en) | 2019-05-21 |
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| CN201821855212.8U Expired - Fee Related CN208889817U (en) | 2018-11-12 | 2018-11-12 | A kind of microwave band-elimination filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518315A (en) * | 2019-09-07 | 2019-11-29 | 西南交通大学 | Multi-frequency band elimination filter based on asymmetric tree-shaped minor matters load multimode resonator |
-
2018
- 2018-11-12 CN CN201821855212.8U patent/CN208889817U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518315A (en) * | 2019-09-07 | 2019-11-29 | 西南交通大学 | Multi-frequency band elimination filter based on asymmetric tree-shaped minor matters load multimode resonator |
| CN110518315B (en) * | 2019-09-07 | 2020-08-25 | 西南交通大学 | Multi-frequency band elimination filter based on asymmetric tree-shaped branch knot loaded multimode resonator |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191105 Address after: 212028 Xinfeng Industrial Park, Dantu District, Zhenjiang City, Jiangsu Province Patentee after: JIANGSU MINGLIAN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: Nanjing City, Jiangsu province 210037 Longpan Road No. 159 Patentee before: Nanjing Forestry University |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20211112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |