CN204088530U - Nested type openings ring band stop filter - Google Patents
Nested type openings ring band stop filter Download PDFInfo
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- CN204088530U CN204088530U CN201420549333.5U CN201420549333U CN204088530U CN 204088530 U CN204088530 U CN 204088530U CN 201420549333 U CN201420549333 U CN 201420549333U CN 204088530 U CN204088530 U CN 204088530U
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Abstract
The utility model discloses a kind of nested type openings ring band stop filter.It comprises substrate, input transmission line, exports transmission line, three under shed ring structure pasters, three rectangular patches, U-shaped paster, rectangular metal ground plates; The upper surface of substrate is provided with input transmission line, exports transmission line, three under shed ring structure pasters, three rectangular patches, U-shaped pasters, the lower surface of substrate is provided with rectangular metal ground plate, the input left end of transmission line is connected with the left end of substrate, the input right-hand member of transmission line is connected with the lower end, left side of U-shaped paster, export the left end of transmission line to be connected with the lower end, right side of U-shaped paster, export the right-hand member of transmission line to be connected with the right-hand member of substrate, three under shed ring structure pasters are equally spaced arranged on the upper surface of substrate.Nested type openings ring band stop filter of the present utility model has the advantages such as simple and compact for structure, filtering performance good, size is little, save material, quality is light.
Description
Technical field
The utility model relates to microwave filter, particularly relates to a kind of nested type openings ring band stop filter.
Background technology
Along with the develop rapidly of the radiotechnics such as Radar Technology and radio communication, microwave radio Circuits and Systems are paid attention to more and more widely.Microwave filter is one of important component part wherein, and the quality of its performance largely determines the work quality of system.The system of various function is developed in succession, and microwave spectrum resource day is becoming tight, and frequency interval constantly reduces, and this just has higher requirement to filter.Wherein microstrip filter has superior performance with it, size is little, the design cycle is short, be easy to integrated, be easy to the advantages such as processing by photoetching technique is widely used.In recent years, the research and development of high-performance baseplate material make microstrip filter can be applied in very large frequency range, thus make the filter type that microstrip filter becomes the most frequently used.
Band stop filter is one of important composition of filter, and it, with being suppress the signal in certain frequency range, allows the signal beyond this frequency range to pass through.Passive and active filter two kinds is divided into by adopted components and parts.The filter that passive filter is only made up of passive component, it is that the principle utilizing the reactance of electric capacity and inductance element to change with the change of frequency is formed.Active filter is made up of passive component and active device.Also a lot of document is had to be studied Wide stop bands low pass filter in recent years, Wide stop bands low pass filter when having that band internal loss is low, little, the advantage such as reflection coefficient is little of fluctuating, also has very wide stopband, can effectively suppress high frequency spurious signal, be an important directions of current filter development.
Utility model content
The utility model provides a kind of nested type openings ring band stop filter, and technical scheme is as follows:
Nested type openings ring band stop filter comprises substrate, input transmission line, exports transmission line, three under shed ring structure pasters, three rectangular patches, U-shaped paster, rectangular metal ground plates, the upper surface of substrate is provided with input transmission line, export transmission line, three under shed ring structure pasters, three rectangular patches, U-shaped paster, the lower surface of substrate is provided with rectangular metal ground plate, the input left end of transmission line is connected with the left end of substrate, the input right-hand member of transmission line is connected with the lower end, left side of U-shaped paster, export the left end of transmission line to be connected with the lower end, right side of U-shaped paster, export the right-hand member of transmission line to be connected with the right-hand member of substrate, three under shed ring structure pasters are equally spaced arranged on the upper surface of substrate, the upper end of three under shed ring structure pasters is connected with the lower end of three rectangular patches respectively, the upper end of the rectangular patch of the left and right sides respectively with input transmission line, the lower end exporting transmission line is connected, the upper end of middle rectangular patch is connected with the lower end of U-shaped paster.
Described substrate is glass-epoxy material, and the length of substrate is 17mm ~ 19mm, and width is 8mm ~ 10mm.The length of described input transmission line, output transmission line is 6mm ~ 7mm, and width is 0.5mm ~ 1.5mm.The arrangement pitches of three described under shed ring structure pasters is 0.5mm ~ 1.5mm, under shed ring structure paster is made up of the first square openings ring paster, the second square openings ring paster, the 3rd square openings ring paster, wrist watch shape paster, wherein the total length of the first square openings ring paster and overall width are 3.5mm ~ 4.5mm, and gap width is 0.1mm ~ 0.3mm; Total length and the overall width of the second square openings ring paster are 3.1mm ~ 3.3mm, and gap width is 0.1mm ~ 0.3mm; Total length and the overall width of the 3rd square openings ring paster are 2.3mm ~ 2.4mm, and gap width is 0.1mm ~ 0.3mm; Wrist watch shape paster is made up of two little rectangular patches and a large square patch, and wherein the length of two little rectangular patches is 0.4mm ~ 0.6mm, and width is 0.1mm ~ 0.3mm, and the length of side of large square patch is 0.4mm ~ 0.6mm.The length of three described rectangular patches is 0.1mm ~ 0.3mm, and width is 0.9mm ~ 1.1mm.Described U-shaped paster is made up of two perpendicular rectangular patches and a horizontal rectangular patch, wherein the length of two perpendicular rectangular patches is 1.4mm ~ 1.6mm, width is 0.3mm ~ 0.5mm, and the length of horizontal rectangular patch is 5.3mm ~ 5.5mm, and width is 0.5mm ~ 1.5mm.The length of described rectangular metal ground plate is 17mm ~ 19mm, and width is 8mm ~ 10mm.
Nested type openings ring band stop filter of the present utility model has the advantages such as simple and compact for structure, filtering performance good, size is little, save material, quality is light.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of nested type openings ring band stop filter;
Fig. 2 is the structure schematic diagram of nested type openings ring band stop filter;
Fig. 3 is the structural representation of under shed ring structure paster;
Fig. 4 is the filtering performance curve chart of nested type openings ring band stop filter;
Fig. 5 is the surface current density distribution map of nested type openings ring band stop filter when 5.5GHz.
Embodiment
As shown in Figures 1 to 3, nested type openings ring band stop filter comprises substrate 1, input transmission line 2, exports transmission line 3, three under shed ring structure pasters 4, three rectangular patches 5, U-shaped paster 6, rectangular metal ground plates 7, the upper surface of substrate 1 is provided with input transmission line 2, export transmission line 3, three under shed ring structure pasters 4, three rectangular patches 5, U-shaped paster 6, the lower surface of substrate 1 is provided with rectangular metal ground plate 7, the left end of input transmission line 2 is connected with the left end of substrate 1, the input right-hand member of transmission line 2 is connected with the lower end, left side of U-shaped paster 6, export the left end of transmission line 3 to be connected with the lower end, right side of U-shaped paster 6, the right-hand member exporting transmission line 3 is connected with the right-hand member of substrate 1, three under shed ring structure pasters 4 are equally spaced arranged on the upper surface of substrate 1, the upper end of three under shed ring structure pasters 4 is connected with the lower end of three rectangular patches 5 respectively, the upper end of the rectangular patch 5 of the left and right sides respectively with input transmission line 2, the lower end exporting transmission line 3 is connected, the upper end of middle rectangular patch 5 is connected with the lower end of U-shaped paster 6.
Described substrate 1 is glass-epoxy material, and the length of substrate 1 is 17mm ~ 19mm, and width is 8mm ~ 10mm.The length of described input transmission line 2, output transmission line 3 is 6mm ~ 7mm, and width is 0.5mm ~ 1.5mm.The arrangement pitches of three described under shed ring structure pasters 4 is 0.5mm ~ 1.5mm, under shed ring structure paster 4 is made up of the first square openings ring paster 8, second square openings ring paster the 9, the 3rd square openings ring paster 10, wrist watch shape paster 11, wherein the total length of the first square openings ring paster 8 and overall width are 3.5mm ~ 4.5mm, and gap width is 0.1mm ~ 0.3mm; Total length and the overall width of the second square openings ring paster 9 are 3.1mm ~ 3.3mm, and gap width is 0.1mm ~ 0.3mm; Total length and the overall width of the 3rd square openings ring paster 10 are 2.3mm ~ 2.4mm, and gap width is 0.1mm ~ 0.3mm; Wrist watch shape paster 11 is made up of two little rectangular patches and a large square patch, and wherein the length of two little rectangular patches is 0.4mm ~ 0.6mm, and width is 0.1mm ~ 0.3mm, and the length of side of large square patch is 0.4mm ~ 0.6mm.The length of three described rectangular patches 5 is 0.1mm ~ 0.3mm, and width is 0.9mm ~ 1.1mm.Described U-shaped paster 6 is made up of two perpendicular rectangular patches and a horizontal rectangular patch, wherein the length of two perpendicular rectangular patches is 1.4mm ~ 1.6mm, width is 0.3mm ~ 0.5mm, and the length of horizontal rectangular patch is 5.3mm ~ 5.5mm, and width is 0.5mm ~ 1.5mm.The length of described rectangular metal ground plate 7 is 17mm ~ 19mm, and width is 8mm ~ 10mm.
Embodiment 1
Select dielectric constant be 4.4 glass-epoxy material make micro-belt substrate, thickness is 1.6mm.The length of substrate is 18mm, and width is 9mm.The length of input transmission line, output transmission line is 6.5mm, and width is 1mm.The arrangement pitches of three under shed ring structure pasters is 1mm, under shed ring structure paster is made up of the first square openings ring paster, the second square openings ring paster, the 3rd square openings ring paster, wrist watch shape paster, wherein the total length of the first square openings ring paster and overall width are 4mm, and gap width is 0.2mm; Total length and the overall width of the second square openings ring paster are 3.2mm, and gap width is 0.2mm; Total length and the overall width of the 3rd square openings ring paster are 2.3mm, and gap width is 0.2mm; Wrist watch shape paster is made up of two little rectangular patches and a large square patch, and wherein the length of two little rectangular patches is 0.5mm, and width is 0.2mm, and the length of side of large square patch is 0.5mm.The length of three rectangular patches is 0.2mm, and width is 1mm.U-shaped paster is made up of two perpendicular rectangular patches and a horizontal rectangular patch, and wherein the length of two perpendicular rectangular patches is 1.5mm, and width is 0.4mm, and the length of horizontal rectangular patch is 5.4mm, and width is 1mm.The length of rectangular metal ground plate is 18mm, and width is 9mm.The property indices of nested type openings ring band stop filter adopts CST software to test, and the S parameter curve of gained as shown in Figure 4.As shown in Figure 4, in 4.64GHz ~ 6.26GHz frequency range, transmission coefficient is all less than-3dB, achieves good bandreject filtering function.Figure 5 shows that the surface current density distribution map of filter when 5.5GHz.
Claims (7)
1. a nested type openings ring band stop filter, it is characterized in that comprising substrate (1), input transmission line (2), export transmission line (3), three under shed ring structure pasters (4), three rectangular patches (5), U-shaped paster (6), rectangular metal ground plate (7), the upper surface of substrate (1) is provided with input transmission line (2), export transmission line (3), three under shed ring structure pasters (4), three rectangular patches (5), U-shaped paster (6), the lower surface of substrate (1) is provided with rectangular metal ground plate (7), the left end of input transmission line (2) is connected with the left end of substrate (1), the right-hand member of input transmission line (2) is connected with the lower end, left side of U-shaped paster (6), the left end exporting transmission line (3) is connected with the lower end, right side of U-shaped paster (6), the right-hand member exporting transmission line (3) is connected with the right-hand member of substrate (1), three under shed ring structure pasters (4) are equally spaced arranged on the upper surface of substrate (1), the upper end of three under shed ring structure pasters (4) is connected with the lower end of three rectangular patches (5) respectively, the upper end of the rectangular patch (5) of the left and right sides respectively with input transmission line (2), the lower end exporting transmission line (3) is connected, the upper end of middle rectangular patch (5) is connected with the lower end of U-shaped paster (6).
2. a kind of nested type openings ring band stop filter as claimed in claim 1, it is characterized in that described substrate (1) is glass-epoxy material, the length of substrate (1) is 17mm ~ 19mm, and width is 8mm ~ 10mm.
3. a kind of nested type openings ring band stop filter as claimed in claim 1, it is characterized in that described input transmission line (2), export transmission line (3) length be 6mm ~ 7mm, width is 0.5mm ~ 1.5mm.
4. a kind of nested type openings ring band stop filter as claimed in claim 1, it is characterized in that the arrangement pitches of three described under shed ring structure pasters (4) is 0.5mm ~ 1.5mm, under shed ring structure paster (4) is made up of the first square openings ring paster (8), the second square openings ring paster (9), the 3rd square openings ring paster (10), wrist watch shape paster (11), wherein the total length of the first square openings ring paster (8) and overall width are 3.5mm ~ 4.5mm, and gap width is 0.1mm ~ 0.3mm; Total length and the overall width of the second square openings ring paster (9) are 3.1mm ~ 3.3mm, and gap width is 0.1mm ~ 0.3mm; Total length and the overall width of the 3rd square openings ring paster (10) are 2.3mm ~ 2.4mm, and gap width is 0.1mm ~ 0.3mm; Wrist watch shape paster (11) is made up of two little rectangular patches and a large square patch, and wherein the length of two little rectangular patches is 0.4mm ~ 0.6mm, and width is 0.1mm ~ 0.3mm, and the length of side of large square patch is 0.4mm ~ 0.6mm.
5. a kind of nested type openings ring band stop filter as claimed in claim 1, it is characterized in that the length of three described rectangular patches (5) is 0.1mm ~ 0.3mm, width is 0.9mm ~ 1.1mm.
6. a kind of nested type openings ring band stop filter as claimed in claim 1, it is characterized in that described U-shaped paster (6) is made up of two perpendicular rectangular patches and a horizontal rectangular patch, wherein the length of two perpendicular rectangular patches is 1.4mm ~ 1.6mm, width is 0.3mm ~ 0.5mm, the length of horizontal rectangular patch is 5.3mm ~ 5.5mm, and width is 0.5mm ~ 1.5mm.
7. a kind of nested type openings ring band stop filter as claimed in claim 1, it is characterized in that the length of described rectangular metal ground plate (7) is 17mm ~ 19mm, width is 8mm ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549333.5U CN204088530U (en) | 2014-09-23 | 2014-09-23 | Nested type openings ring band stop filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549333.5U CN204088530U (en) | 2014-09-23 | 2014-09-23 | Nested type openings ring band stop filter |
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| Publication Number | Publication Date |
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| CN204088530U true CN204088530U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420549333.5U Expired - Fee Related CN204088530U (en) | 2014-09-23 | 2014-09-23 | Nested type openings ring band stop filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879039A (en) * | 2018-06-28 | 2018-11-23 | 郑州大学 | A kind of bandstop filter based on Meta Materials |
-
2014
- 2014-09-23 CN CN201420549333.5U patent/CN204088530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879039A (en) * | 2018-06-28 | 2018-11-23 | 郑州大学 | A kind of bandstop filter based on Meta Materials |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150923 |
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| EXPY | Termination of patent right or utility model |