CN206322825U - A kind of microwave filter with 90 degree of bent angles - Google Patents
A kind of microwave filter with 90 degree of bent angles Download PDFInfo
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- CN206322825U CN206322825U CN201720004399.XU CN201720004399U CN206322825U CN 206322825 U CN206322825 U CN 206322825U CN 201720004399 U CN201720004399 U CN 201720004399U CN 206322825 U CN206322825 U CN 206322825U
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- groove
- filtering
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- transition
- microwave
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Abstract
The utility model discloses a kind of microwave filter with 90 degree of bent angles, wherein, including two shape identical filtering units, described filtering unit balances the filtering chamber that the dieelctric sheet set is formed by two panels, in the opposite face of two panels dieelctric sheet along microwave transmission direction line of rabbet joint guided wave face is arranged with successively, transition face and filtering groove surface, described filtering groove surface is the multiple filtering grooves set in the vertical microwave transmission direction of dieelctric sheet opposite face, the groove face of the filtering groove is rectangle, described transition face is the multiple transition grooves set in the vertical microwave transmission direction of dieelctric sheet opposite face, the groove face of the transition groove is trapezoidal；The filtering groove surface end of two filtering units connects and is in 90 ° of bent angles.A kind of microwave filter with 90 degree of bent angles of the present utility model has the characteristics of anti-electromagnetic interference capability is good, integrated circuit wiring is flexible and changeable.
Description
Technical field
The utility model is related to a kind of artificial surface phasmon type microwave filter, more specifically, more particularly to one
Plant the microwave filter with 90 degree of bent angles.
Background technology
Today's society is the big data epoch, as the demand of information is in explosive growth, field of mobile communication requirement
The higher microwave device of integrated level can be produced, however as the continuous improvement of high-frequency circuit integrated level, electromagnetic noise is seriously done
The stability of microwave device work is disturbed.Therefore, existing microwave device has not adapted to current extensive microwave integrated circuit
Development, based on such technical background urgently utility model some there is the artificial surface etc. of stronger anti-electromagnetic interference capability
From excimer type microwave filter, so as to preferably meet the requirement of microwave communication of future generation.
Utility model content
The purpose of this utility model is to provide a kind of microwave filter with 90 degree of bent angles, and the microwave filter has
The characteristics of anti-electromagnetic interference capability is good, integrated circuit wiring is flexible and changeable.
The technical solution adopted in the utility model is as follows：
A kind of microwave filter with 90 degree of bent angles, wherein, including two shape identical filtering units, described filter
Ripple component is balanced the filtering chamber that is formed of dieelctric sheet set by two panels, two panels dieelctric sheet opposite face along microwave transmission direction according to
Sub-symmetry is vertical in dieelctric sheet opposite face provided with line of rabbet joint guided wave face, transition face and filtering groove surface, described filtering groove surface
Multiple filtering grooves that microwave transmission direction is set, the groove face of the filtering groove is rectangle, and described transition face is in medium
Multiple transition grooves that the vertical microwave transmission direction of piece opposite face is set, the groove face of the transition groove is trapezoidal；Described in two
The filtering groove surface end of filtering unit connects and is in 90 ° of bent angles.
Further, the bottom land oblique line equation of the transition groove is：
Y=a+bx
Wherein a is Linear intercept, and value is 0.1~5mm, and b is straight slope, and value is 0.1~3mm.
Further, multiple described filtering grooves are uniformly arranged, and the rectangle width of the filtering groove is 2~6mm, institute
The rectangular elevation for stating filtering groove is that the distance between 2~6mm, two neighboring filtering groove is 1~5mm.
Further, multiple described transition grooves are uniformly arranged, and the width of rebate of the transition groove is recessed equal to filtering
Distance, adjacent transition groove between the rectangle width of groove, two neighboring transition groove and the distance and phase between filtering groove
Distance between adjacent two filtering groove is identical.
Further, length of the filtering groove surface along microwave transmission direction is 74~94mm, the filtering groove surface
The width in vertical microwave transmission direction is 8~12mm, and length of the transition face along microwave transmission direction is 20~40mm, described
Length of the line of rabbet joint guided wave face along microwave transmission direction is 6~10mm.
Further, the length in the vertical microwave transmission direction of the dieelctric sheet is 90~110mm, the thickness of the dieelctric sheet
For 0.3~0.7mm.
Further, in described filtering unit, filtering groove and transition groove (7) described in two panels on dieelctric sheet are
Specular.
Compared with prior art, the utility model have the advantage that for：
A kind of microwave filter with 90 degree of bent angles of the present utility model, wherein, including two shape identicals filtering
Component, described filtering unit balances the filtering chamber that the dieelctric sheet set is formed by two panels, on the opposite face edge of two panels dieelctric sheet
Microwave transmission direction is arranged with line of rabbet joint guided wave face, transition face and filtering groove surface successively, and described filtering groove surface is to be situated between
Multiple filtering grooves that the vertical microwave transmission direction of matter piece opposite face is set, the groove face of the filtering groove is rectangle, described
Transition face is the multiple transition grooves set in the vertical microwave transmission direction of dieelctric sheet opposite face, and the groove face of the transition groove is
It is trapezoidal；The filtering groove surface end of two filtering units connects and is in 90 ° of bent angles.Microwave signal is realized using line of rabbet joint guided wave face
Input or output, by transition face by microwave transmission to filtering groove surface, employed in filtering groove surface new periodicity,
The 90 degree of bent angles and rectangular filter groove structure of specular, improve the constraint effect of microwave band sub-wavelength so that filtering
The anti-electromagnetic interference capability of device is more excellent.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the S parameter performance diagram of the utility model specific embodiment；
Fig. 3 is the normal direction distribution map of the electric field of the utility model specific embodiment；
Fig. 4 is the regulation and control schematic diagram of the out-of-band transmission zero point of the utility model specific embodiment.
Embodiment
With reference to embodiment, the technical solution of the utility model is described in further detail, but not structure
Paired any limitation of the present utility model.
Shown in reference picture 1, a kind of microwave filter with 90 degree of bent angles of the present utility model, wherein, including two shapes
Shape identical filtering unit, described filtering unit balances the filtering chamber that the dieelctric sheet 2 set is formed by two panels, in two panels medium
The opposite face of piece 2 is arranged with line of rabbet joint guided wave face 3, transition face 4 and filtering groove surface 5 successively along microwave transmission direction, described
It is the multiple filtering grooves 6 set in the vertical microwave transmission direction of the opposite face of dieelctric sheet 2 to filter groove surface 5, the filtering groove 6
Groove face be rectangle, described transition face 4 is the multiple transition grooves set in the vertical microwave transmission direction of the opposite face of dieelctric sheet 2
7, the groove face of the transition groove 7 is trapezoidal；The end of filtering groove surface 5 of two filtering units connects and is in 90 ° of bent angles.Profit
The input or output of microwave signal are realized with line of rabbet joint guided wave face 3, by transition face 2 by microwave transmission to groove surface 5 is filtered, in filtering
New periodicity, 90 degree of bent angles of specular and the structure of rectangular filter groove 6 are employed in groove surface 5, microwave is improved
The constraint effect of wave band sub-wavelength so that the anti-electromagnetic interference capability of wave filter is more excellent.Therefore, one kind of the present utility model
Microwave filter with 90 degree of bent angles can be applied in the civilian microwave communication system of L~S-band, real with certain engineering
With value.Microwave filter of the present utility model counts out the physical dimension of filtering groove 6, Ran Houxuan according to customer demand in advance
The microwave filter with the filtering groove 6 for being adapted to size is selected to use.
By adjusting the several of 6 gaps of rectangular filter groove 6 and its filtering groove in microwave filter of the present utility model
What size can regulate and control the free transmission range and stopband rejection characteristic of wave filter.Moreover, 90 degree of corner structures of wave filter can make collection
Wiring into circuit is more flexible and changeable, and the high integration of circuit is ensure that while the electrical characteristic of Optimal Filter.
The bottom land oblique line equation of the transition groove 7 is：
Y=a+bx
Wherein a is Linear intercept, and value is 0.1~5mm, and b is straight slope, and value is 0.1~3mm.Transition groove 7 is adopted
Gradual change resistance technique is used, its bottom portion of groove is angled straight lines progressively structure for amplifying, and electromagnetic resistivity can be prevented to be mutated and realize and filter
The good linking of ripple groove surface 5.
Multiple described filtering grooves 6 are uniformly arranged, and the rectangle width of the filtering groove 6 is 2~6mm, the filtering
The rectangular elevation of groove 6 is that the distance between 2~6mm, two neighboring filtering groove 6 is 1~5mm, by setting the filtering energy of groove 6
Transmission line is produced high-frequency cut-off frequency, and closely fetter electromagnetic field, prevent electromagnetic interference.
Multiple described transition grooves 7 are uniformly arranged, and the width of rebate of the transition groove 7 is equal to the square of filtering groove 6
The distance and adjacent two between distance, adjacent transition groove 7 and filtering groove 6 between shape width, two neighboring transition groove 7
Distance between individual filtering groove 6 is identical.
Length of the filtering groove surface 5 along microwave transmission direction is 74~94mm, the vertical microwave of the filtering groove surface 5
The width of direction of transfer is 8~12mm, and length of the transition face 4 along microwave transmission direction is 20~40mm, and the line of rabbet joint is led
Length of the corrugated 3 along microwave transmission direction is 6~10mm, and the good of electromagnetic resistivity and electromagnetic mode can be realized using transition face 4
Matching.
The length in the vertical microwave transmission direction of the dieelctric sheet 2 is 90~110mm, the thickness of the dieelctric sheet 2 for 0.3~
0.7mm。
In described filtering unit, filtering groove 6 and the equal specular of transition groove 7 described in two panels on dieelctric sheet 2,
Transmission line is set to produce high-frequency cut-off frequency effects more preferable.
Embodiment
The structure of the microwave filter of the present embodiment is identical with embodiment, and described dieelctric sheet 1 uses dielectric constant
For 2.65 substrate, a kind of physical dimension data such as table of the microwave filter each several part with 90 degree of bent angles of the present utility model
Shown in one：
The microwave filter each several part physical size (unit of table one：mm)
The filtering curve of the microwave filter of physical dimension data as shown in Table 1 is calculated such as through Fdtd Method
Shown in Fig. 2, filter centre frequency is 2.21GHz, and insertion loss is 2.0dB at this, and filter passband internal reflection is less than
9.4dB, ripple shake 1.4dB.The microwave filter of physical dimension data as shown in Table 1 works in the method obtained during 3.5GHz
Line direction distribution map of the electric field according to Fig. 3 as shown in figure 3, can obtain, and the filtering groove surface 5 that its microwave electric field is mainly bound by rectangle hangs down
Around the gap of the width in straight microwave transmission direction, leakage is seldom, effectively improves the anti-electromagnetic interference capability of the wave filter.
The microwave filter out-of-band transmission zero point of physical dimension data as shown in Table 1 is by the 6 gap size regulation and control of rectangular filter groove
Regulate and control schematic diagram as shown in figure 4, can be obtained according to Fig. 4, the position of wave filter out-of-band transmission zero point, the outer suppression of the band of wave filter in other words
Characteristic processed, can be regulated and controled by the width in 6 gaps of filtering groove.
It the foregoing is only preferred embodiment of the present utility model, all institutes in spirit of the present utility model and spirit
Any modification, equivalent and improvement made etc., should be included within protection domain of the present utility model.
Claims (7)
1. a kind of microwave filter with 90 degree of bent angles, it is characterised in that described including two shape identical filtering units
Filtering unit the filtering chamber that is formed of dieelctric sheet (2) set is balanced by two panels, two panels dieelctric sheet (2) opposite face along microwave
Direction of transfer is arranged with line of rabbet joint guided wave face (3), transition face (4) and filtering groove surface (5), described filtering groove surface successively
(5) it is the multiple filtering grooves (6) set in the vertical microwave transmission direction of dieelctric sheet (2) opposite face, the filtering groove (6)
Groove face is rectangle, and described transition face (4) is that the multiple transition set in the vertical microwave transmission direction of dieelctric sheet (2) opposite face are recessed
Groove (7), the groove face of the transition groove (7) is trapezoidal；Filtering groove surface (5) end of two filtering units connects and is in
90 ° of bent angles.
2. a kind of microwave filter with 90 degree of bent angles according to claim 1, it is characterised in that the transition groove
(7) bottom land oblique line equation is：
Y=a+bx
Wherein a is Linear intercept, and value is 0.1~5mm, and b is straight slope, and value is 0.1~3mm.
3. a kind of microwave filter with 90 degree of bent angles according to claim 1, it is characterised in that multiple described filters
Ripple groove (6) is uniformly arranged, and the rectangle width of the filtering groove (6) is 2~6mm, the rectangular elevation of the filtering groove (6)
For 2~6mm, the distance between two neighboring filtering groove (6) is 1~5mm.
4. a kind of microwave filter with 90 degree of bent angles according to claim 2, it is characterised in that multiple described mistakes
Cross groove (7) to be uniformly arranged, the width of rebate of the transition groove (7) is equal to the rectangle width of filtering groove (6), two neighboring
Distance and two neighboring filtering between distance between transition groove (7), adjacent transition groove (7) and filtering groove (6) is recessed
Distance between groove (6) is identical.
5. a kind of microwave filter with 90 degree of bent angles according to claim 1, it is characterised in that the filtering groove
Length of the face (5) along microwave transmission direction is 74~94mm, and the width in the vertical microwave transmission direction of the filtering groove surface (5) is
8~12mm, length of the transition face (4) along microwave transmission direction is 20~40mm, and the line of rabbet joint guided wave face (3) passes along microwave
The length for sending direction is 6~10mm.
6. a kind of microwave filter with 90 degree of bent angles according to claim 1, it is characterised in that the dieelctric sheet
(2) length in vertical microwave transmission direction is 90~110mm, and the thickness of the dieelctric sheet (2) is 0.3~0.7mm.
7. a kind of microwave filter with 90 degree of bent angles according to claim 1, it is characterised in that in described filtering
In component, filtering groove (6) and transition groove (7) the specular on dieelctric sheet described in two panels (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004399.XU CN206322825U (en) | 2017-01-04 | 2017-01-04 | A kind of microwave filter with 90 degree of bent angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004399.XU CN206322825U (en) | 2017-01-04 | 2017-01-04 | A kind of microwave filter with 90 degree of bent angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206322825U true CN206322825U (en) | 2017-07-11 |
Family
ID=59261777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720004399.XU Expired - Fee Related CN206322825U (en) | 2017-01-04 | 2017-01-04 | A kind of microwave filter with 90 degree of bent angles |
Country Status (1)
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|---|---|
| CN (1) | CN206322825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785265A (en) * | 2017-01-04 | 2017-05-31 | 梧州学院 | It is a kind of that there are 90 degree of microwave filters of bent angle |
-
2017
- 2017-01-04 CN CN201720004399.XU patent/CN206322825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785265A (en) * | 2017-01-04 | 2017-05-31 | 梧州学院 | It is a kind of that there are 90 degree of microwave filters of bent angle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20200104 |