CN206628567U - The high rejects trap of the outer high frequency of passband - Google Patents
The high rejects trap of the outer high frequency of passband Download PDFInfo
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- CN206628567U CN206628567U CN201720419747.XU CN201720419747U CN206628567U CN 206628567 U CN206628567 U CN 206628567U CN 201720419747 U CN201720419747 U CN 201720419747U CN 206628567 U CN206628567 U CN 206628567U
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Abstract
It the utility model is related to wireless communication technology field, more particularly to the high rejects trap of high frequency outside passband, medium body including a cuboid or cube structure, two opposite faces are provided with four through holes in the medium body, either side provided with through hole is provided with metal feed layer, and the medium body is provided with input and output electrode with provided with the adjacent one side of metal feed layer, said metal feed layer is electrically connected with input and output electrode, each side of the medium body is coated with metal conductor layer, the metal feed layer feeds block by four rectangles and formed, block is corresponding is arranged on four through holes for four rectangles feed, and the rectangle feed block on adjacent three through holes connects provided with distributing point.The utility model is improved by the design of the structure to medium substrate and the metal electrode layer of coating, so as to greatly improve the filter quality of wave filter, and is effectively improved the antijamming capability of wave filter.
Description
Technical field
It the utility model is related to wireless communication technology field, and in particular to the high rejects trap of the outer high frequency of passband.
Background technology
As wireless communication technology develops, increasing electronic equipment employs wireless transmission function.In radio wave
In by electric wave carrier wave load data, film data, then launched by transmission equipment or be received back to Lai then transmit process has
Many different frequencies exist simultaneously, and relative interference effect is caused for connecing equipment, to ensure number or data in the process
Frequency channels can be led to by identical to receive and maintain the good quality of reception, a kind of filtering is put into wireless transmission or receiving circuit
Component be called wave filter (Filter), the wave filter of main flow can divide LTCC, SAW, dielectric filter, ceramic filtering according to processing procedure at present
Ripple device, quartz filter etc., and ceramic filter is using porous structural made of ceramics.
Existing ceramic filter is because its wave frequency wavelength is short, easily with peripheral material or autologous generation resonance effects to filter
Ripple device passage, which produces, to be disturbed, the signal attenuation ability being easily affected outside band channels in its filtering, and filter quality is big
It is big to reduce.
The content of the invention
For this reason, it may be necessary to provide a kind of passband the outer high rejects trap of high frequency, pass through the structure to medium substrate and coating
The design of metal electrode layer improves, and so as to greatly improve the filter quality of wave filter, and is effectively improved wave filter
Antijamming capability.
To achieve the above object, the invention provides the high rejects trap of high frequency outside a kind of passband, including a cuboid or
The medium body of cube structure, two opposite faces are provided with four through holes, the either side provided with through hole in the medium body
Face is provided with metal feed layer, and the medium body is provided with input and output electrode with provided with the adjacent one side of metal feed layer,
Said metal feed layer is electrically connected with input and output electrode, and each side of the medium body is coated with metal conductor layer, institute
State metal feed layer and feed blocks by four rectangles and form, block is corresponding is arranged on four through holes for four rectangles feeds, and phase
Rectangle feed block on adjacent three through holes connects provided with distributing point.
Further, four through holes are circular hole, and the center of circle of four through holes is on same straight line and and medium
The long edge in the face that body is provided with through hole is parallel.
Further, it is respectively equipped with rectangle feed tab on the rectangle feed block of two outermost ends.Rectangle feed tab energy is set
Enough adjust the capacitance characteristic of rectangle feed block sum.
Further, the ratio between the length of side of the distributing point of the rectangle feed block among connection two and the length of side of rectangle feed block
Scope is 2/3-5/6.
Further, the metal conductor layer avoids metal feed layer and input and output electrode is coated with.
Further, three adjacent rectangles feed block connection that the input electrode is connected with distributing point, it is described defeated
Go out electrode to be connected with independent rectangle feed block.It is equivalent go out uneven inductance value form that high frequency is high to suppress transmission zero
Further, the medium body is ceramic dielectric body.
Prior art is different from, above-mentioned technical proposal passes through
A kind of a kind of high rejects trap of the outer high frequency of passband of brand new is designed, by designing a row in medium body
Through hole, and the one side with through hole sets metal conductor layer wherein, metal conductor layer feeds block using three rectangles and connected
Input electrode is connect, a rectangle feed block connects output electrode, feed tab is additionally provided with metal conductor layer, so that whole gold
The equivalent circuit structure performance characteristics of category conductor layer greatly enhance, and realize that the outer high frequency of passband is high and suppress to have while filtering
Effect improves the antijamming capability of wave filter.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present embodiment.
Fig. 2 is the dimensional structure diagram of the present embodiment（Band broken section）.
Fig. 3 is the equivalent circuit diagram of the present embodiment.
Fig. 4 is the structure electrical performance characteristics of the present embodiment.
Embodiment
To describe the technology contents of technical scheme, construction feature, the objects and the effects in detail, below in conjunction with specific reality
Apply example and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1 and Fig. 2, a kind of high rejects trap of the outer high frequency of passband of the present embodiment, include the medium of a cuboid
Body 1, in other embodiments, cubical ceramic dielectric body 1 can also be used.Two in the rectangle medium body 1
Opposite face is provided with four through holes 21,22,23,24, in the present embodiment, four through holes 21,22,23,24 axially with it is rectangular
The upper side 11 of body medium body 1 is parallel with downside 12, and four through holes 21,22,23,24 are through cuboid medium
The front and rear two relative side of body 1, four through holes 21,22,23,24 are circular hole, and the circle of four through holes 21,22,23,24
The heart is on same straight line and parallel with the long edge of the leading flank 13 of medium body 1.This design can also improve production
Efficiency.
In the present embodiment, the leading flank 13 of cuboid medium body 1 is provided with metal feed layer 3, for other embodiment
It is also not necessarily limited to this, it is only necessary to metal feed layer is provided with the either side provided with through hole.In the present embodiment, and Jie
The upper side 11 of matter body 1 is provided with input and output electrode 4, and the leading flank 13 provided with metal feed layer 3 is with being provided with input and output
The upper side 11 of electrode is adjacent, and said metal feed layer 3 is connected with input and output electrode electrical 4, each side of the medium body 1
Face is coated with metal conductor layer 3, and the metal feed layer 3 feeds block 31,32,33,34 by four rectangles and formed, four rectangle feedbacks
Electric block 31,32,33,34 is corresponding to be arranged on four through holes 21,22,23,24, in the present embodiment the rectangle feed He of block 31
34 wherein one end right angle is provided in round chamfering, so as to preferably increase the feed edge lengths of rectangle feed block 31 and 34,
And reception and transmission of the rounded corners for signal have more preferable antijamming capability, and the signal for avoiding right angle setting is mutual
Interference.
In the present embodiment, the rectangle feed block 31,32,33 on adjacent three through holes 21,22,23 is provided with feedback between any two
Electricity point connection, and rectangle feed block 31,32,33 is connected with input electrode 41.And another rectangle feed block 34 is then to be independent
Set, and rectangle feed block 34 is connected with output electrode 42.
In the present embodiment, rectangle feed tab 5 is respectively equipped with the rectangle feed block 31 and 34 of two outermost ends.Rectangle is set to present
Electric piece 5 can increase the capacitance characteristic of rectangle feed block 31 and 34.The distributing point of rectangle feed block 32,33 among connection two
It is 2/3-5/6 that the length of side, which feeds the ratio between the length of side of block scope with rectangle,.So as to coordinate the equivalent capacity inductance value of electrical characteristics, ensure it
Capacitive character.The metal conductor layer avoids metal feed layer and input and output electrode is coated with.So as to needed for equivalent integrated circuit
Configuration.
With reference to shown in figure 3, the equivalent circuit diagram of the present embodiment is shown in the figure, the equivalent circuit include input port,
Electric capacity C1, electric capacity C21, electric capacity C2, inductance L2, electric capacity C65, electric capacity C4, inductance L4, electric capacity C29, inductance L59, electric capacity C4, electricity
Feel L4, electric capacity C30, electric capacity C1, four through holes 21,22,23,24 in medium body 1 and provided around metal feed
Electric capacity C21 and electric capacity C23 in the equivalent circuit that the capacitive character of layer 3 is formed so that it is high that whole wave filter possesses the outer high frequency of passband
Suppress function filtering characteristic.
With reference to shown in figure 4, the figure illustrates the structure electrical performance characteristics of the present embodiment, it can be seen that this implementation
The structure design of example can realize that the outer high frequency of passband is high well and suppress filtering, whole indicatrix smooth steady, and noise immunity
Can be good, substantially increase the filter quality of wave filter.Red curve is indicated in Fig. 4 represents that wave filter crosses band and Out-of-band rejection is special
Property, it is to have to suppress index well that 5,6,7 numerical value of sign point are very low.
In the present embodiment, the making of the feed tab of the feed layer can use typography or etch process complete
Into.Its flow is as follows when making feed tab using typography：
Web plate is set in the medium body of printing, and web plate is from gap 2mm between medium body, using scraper by under web plate
Metal material is printed in medium body by pressure.After drying, feed tab then prints completion.
Then the design of designed feed tab is covered on photographic plate through overexposure when making feed tab using etch process,
Then it is disposed in medium body, feed tab is etched in medium body using etching machine.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or terminal device including a series of elements not only include those
Key element, but also the other element including being not expressly set out, or it is this process, method, article or end also to include
The intrinsic key element of end equipment.In the absence of more restrictions, limited by sentence " including ... " or " including ... "
Key element, it is not excluded that other key element in the process including the key element, method, article or terminal device also be present.This
Outside, herein, " being more than ", " being less than ", " exceeding " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understand
It is to include this number.
Although the various embodiments described above are described, those skilled in the art once know basic wound
The property made concept, then other change and modification can be made to these embodiments, so embodiments of the invention are the foregoing is only,
Not thereby the scope of patent protection of the present invention, every equivalent structure made using description of the invention and accompanying drawing content are limited
Or equivalent flow conversion, or other related technical areas are directly or indirectly used in, similarly it is included in the patent of the present invention
Within protection domain.
Claims (7)
- A kind of 1. high rejects trap of the outer high frequency of passband, it is characterised in that：Medium sheet including a cuboid or cube structure Body, two opposite faces are provided with four through holes in the medium body, and the either side provided with through hole is provided with metal feed layer, And the medium body is provided with input and output electrode, said metal feed layer and input with provided with the adjacent one side of metal feed layer Output electrode is electrically connected with, and each side of the medium body is coated with metal conductor layer, and the metal feed layer includes four Rectangle feeds block, and block is corresponding is arranged on four through holes for four rectangles feed, and the rectangle feedback on adjacent three through holes Electric block connects provided with distributing point.
- A kind of 2. high rejects trap of the outer high frequency of passband according to claim 1, it is characterised in that：Four through holes For circular hole, the center of circle of four through holes be on same straight line and be provided with medium body through hole the long edge in the face it is parallel.
- A kind of 3. high rejects trap of the outer high frequency of passband according to claim 2, it is characterised in that：The rectangle of two outermost ends Rectangle feed tab is respectively equipped with feed block, sets rectangle feed tab to increase the capacitance characteristic of rectangle feed block sum.
- A kind of 4. high rejects trap of the outer high frequency of passband according to claim 2, it is characterised in that：Square among connection two It is 2/3-5/6 that the length of side of the distributing point of shape feed block, which feeds the ratio between the length of side of block scope with rectangle,.
- A kind of 5. high rejects trap of the outer high frequency of passband according to claim 1, it is characterised in that：The metal conductor layer Avoid metal feed layer and input and output electrode is coated with.
- A kind of 6. high rejects trap of the outer high frequency of passband according to claim 1, it is characterised in that：The input electrode with Three adjacent rectangles feed block connection with distributing point connection, the output electrode are connected with independent rectangle feed block.
- A kind of 7. high rejects trap of the outer high frequency of passband according to claim 1, it is characterised in that：Further, it is described Medium body is ceramic dielectric body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720419747.XU CN206628567U (en) | 2017-04-20 | 2017-04-20 | The high rejects trap of the outer high frequency of passband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720419747.XU CN206628567U (en) | 2017-04-20 | 2017-04-20 | The high rejects trap of the outer high frequency of passband |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206628567U true CN206628567U (en) | 2017-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720419747.XU Active CN206628567U (en) | 2017-04-20 | 2017-04-20 | The high rejects trap of the outer high frequency of passband |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206628567U (en) |
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2017
- 2017-04-20 CN CN201720419747.XU patent/CN206628567U/en active Active
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Address after: No. 1203, Jinting Road, Jimei District, Xiamen City, Fujian Province Patentee after: Xiamen Songyuan Electronics Co.,Ltd. Address before: 361000 No. 1203, Jinting Road, Jimei District, Xiamen City, Fujian Province Patentee before: Xiamen Sunyear Electronics Co.,Ltd. |