CN204407453U - Open rectangle ring band stop filter - Google Patents
Open rectangle ring band stop filter Download PDFInfo
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- CN204407453U CN204407453U CN201520086859.9U CN201520086859U CN204407453U CN 204407453 U CN204407453 U CN 204407453U CN 201520086859 U CN201520086859 U CN 201520086859U CN 204407453 U CN204407453 U CN 204407453U
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Abstract
The utility model discloses a kind of open rectangle ring band stop filter.It comprises substrate, horizontal T-shaped input transmission line, the output of horizontal T-shaped transmission line, two G shaped microstrip line, left F shaped microstrip line, right inverted-F shaped microstrip line, backward L-shaped microstrip line, L shaped microstrip line; The upper surface of substrate is provided with horizontal T-shaped input transmission line, horizontal T-shaped exports transmission line, two G shaped microstrip line, left F shaped microstrip line, right inverted-F shaped microstrip line, backward L-shaped microstrip line, L shaped microstrip line, the left end of horizontal T-shaped input transmission line is connected with the right-hand member of two G shaped microstrip line, and the right-hand member that horizontal T-shaped exports transmission line is connected with the left end of two G shaped microstrip line.It is good that the utility model has bandreject filtering performance, simple and compact for structure, and size is little, easy to make, is convenient to the advantages such as integrated.
Description
Technical field
The utility model relates to filter, particularly relates to a kind of open rectangle ring band stop filter.
Background technology
Current wireless communication technology high-speed develops, and the scope of business constantly expands, and the demand of people to wireless product increases rapidly, and filter just plays important role in these product circuits, and obtains continuous progress along with the development of the communication technology.New communication system requirements development is a kind of can extract and the new technology of detecting signal in specific frequency band, and the development of this new technology accelerates the research and development of wave filter technology further.
At present, in many microwave systems, require that signal is propagated with loss little as far as possible wherein, and for the exigent suppression of unwanted interference signal, at this moment need to adopt band stop filter to suppress high reject signal, therefore band stop filter is one of important composition of filter, its effect is the signal suppressed in certain frequency range, allows the signal beyond this frequency range to pass through, it have the logical loss of band low, with the good feature of resistive energy.
Summary of the invention
The utility model provides a kind of open rectangle ring band stop filter, and technical scheme is as follows:
Open rectangle ring band stop filter comprises substrate, horizontal T-shaped input transmission line, the output of horizontal T-shaped transmission line, two G shaped microstrip line, left F shaped microstrip line, right inverted-F shaped microstrip line, backward L-shaped microstrip line, L shaped microstrip line, the upper surface of substrate is provided with horizontal T-shaped input transmission line, horizontal T-shaped exports transmission line, two G shaped microstrip line, left F shaped microstrip line, right inverted-F shaped microstrip line, backward L-shaped microstrip line, L shaped microstrip line, the left end of horizontal T-shaped input transmission line is connected with the right-hand member of two G shaped microstrip line, the right-hand member of left F shaped microstrip line is connected with the left end of two G shaped microstrip line opening part, the bottom of L shaped microstrip line is connected with the left upper end of two G shaped microstrip line opening part, the left end of right inverted-F shaped microstrip line is connected with the right-hand member of two G shaped microstrip line opening part, the bottom of backward L-shaped microstrip line is connected with the upper right side of two G shaped microstrip line opening part, the right-hand member that horizontal T-shaped exports transmission line is connected with the left end of two G shaped microstrip line.
Described substrate is glass-epoxy material, and the length of substrate is 23mm ~ 25m, and width is 14mm ~ 16mm.Described horizontal T-shaped input transmission line is identical with the shape size that horizontal T-shaped exports transmission line, by two horizontal rectangle transmission line compositions, wherein the length of the horizontal rectangle transmission line in outside is 4mm ~ 6mm, width is 1.6mm ~ 2.2mm, wherein the length of the horizontal rectangle transmission line in inner side is 1.8mm ~ 2.4mm, and width is 4mm ~ 1.5mm.Described two G shaped microstrip lines are made up of at bottom fluting and two longitudinal moment shaped microstrip lines a straight-flanked ring microstrip line, wherein the total length of straight-flanked ring microstrip line is 11mm ~ 14mm, overall width is 9mm ~ 12mm, the width of ring is 1mm ~ 2mm, slotting length is 2mm ~ 2.5mm, the shape size of two longitudinal moment shaped microstrip lines is identical, and length is 4mm ~ 4.5mm, and width is 1mm ~ 1.2mm.Described left F shaped microstrip line is identical with the shape size of right inverted-F shaped microstrip line, by two longitudinal moment shaped microstrip lines and two transverse moment shaped microstrip line compositions, wherein the length of the horizontal rectangle in upper end is 3.5mm ~ 4mm, width is 0.3mm ~ 0.5mm, the length of the horizontal rectangle in lower end is 2mm ~ 3mm, width is 1mm ~ 2mm, the length of upper end longitudinal moment shaped microstrip line is for being 2.5mm ~ 3mm, width is 0.3mm ~ 0.5mm, the length of lower end longitudinal moment shaped microstrip line is 2.9mm ~ 3.5mm, and width is 1.5mm ~ 2.5mm.Described backward L-shaped microstrip line is identical with the shape size of L shaped microstrip line, by a longitudinal moment shaped microstrip line and a square microstrip line composition, wherein the length of longitudinal moment shaped microstrip line is 2mm ~ 2.5mm, width is 1mm ~ 1.2mm, the length of square microstrip line is 0.9mm ~ 1.2mm, and width is 0.9mm ~ 1.2mm.
It is good that the utility model has filtering performance, and structure is simple, and size is little, easy to make, is convenient to the advantages such as integrated.
Accompanying drawing explanation
Fig. 1 is the structure chart of open rectangle ring band stop filter;
Fig. 2 is the performance chart of open rectangle ring band stop filter;
Fig. 3 is the Surface current distribution figure of open rectangle ring band stop filter when 2.4GHz.
Embodiment
As shown in Figure 1, open rectangle ring band stop filter comprises substrate 1, horizontal T-shaped input transmission line 2, the output of horizontal T-shaped transmission line 3, two G shaped microstrip line 4, left F shaped microstrip line 5, right inverted-F shaped microstrip line 6, backward L-shaped microstrip line 7, L shaped microstrip line 8, the upper surface of substrate 1 is provided with horizontal T-shaped input transmission line 2, horizontal T-shaped exports transmission line 3, two G shaped microstrip line 4, left F shaped microstrip line 5, right inverted-F shaped microstrip line 6, backward L-shaped microstrip line 7, L shaped microstrip line 8, the left end of horizontal T-shaped input transmission line 2 is connected with the right-hand member of two G shaped microstrip line 4, the right-hand member of left F shaped microstrip line 5 is connected with the left end of two G shaped microstrip line 4 opening part, the bottom of L shaped microstrip line 8 is connected with the left upper end of two G shaped microstrip line 4 opening part, the left end of right inverted-F shaped microstrip line (6) is connected with the right-hand member of two G shaped microstrip line 4 opening part, the bottom of backward L-shaped microstrip line 7 is connected with the upper right side of two G shaped microstrip line 4 opening part, the right-hand member that horizontal T-shaped exports transmission line 3 is connected with the left end of two G shaped microstrip line 4.
Described substrate 1 is glass-epoxy material, and the length of substrate 1 is 23mm ~ 25mm, and width is 14mm ~ 16mm.Described horizontal T-shaped input transmission line 2 is identical with the shape size that horizontal T-shaped exports transmission line 3, by two horizontal rectangle transmission line compositions, wherein the length of the horizontal rectangle transmission line in outside is 4mm ~ 6mm, width is 1.6mm ~ 2.2mm, wherein the length of the horizontal rectangle transmission line in inner side is 1.8mm ~ 2.4mm, and width is 1mm ~ 1.5mm.
Described two G shaped microstrip lines 4 are made up of at bottom fluting and two longitudinal moment shaped microstrip lines a straight-flanked ring microstrip line, wherein the total length of straight-flanked ring microstrip line is 11mm ~ 14mm, overall width is 9mm ~ 12mm, the width of ring is 1mm ~ 2mm, slotting length is 2mm ~ 2.5mm, the shape size of two longitudinal moment shaped microstrip lines is identical, and length is 4mm ~ 4.5mm, and width is 1mm ~ 1.2mm.Described left F shaped microstrip line 5 is identical with the shape size of right inverted-F shaped microstrip line 6, by two longitudinal moment shaped microstrip lines and two transverse moment shaped microstrip line compositions, wherein the length of the horizontal rectangle in upper end is 3.5mm ~ 4mm, width is 0.3mm ~ 0.5mm, the length of the horizontal rectangle in lower end is 2mm ~ 3mm, width is 1mm ~ 2mm, the length of upper end longitudinal moment shaped microstrip line is for being 2.5mm ~ 3mm, width is 0.3mm ~ 0.5mm, the length of lower end longitudinal moment shaped microstrip line is 2.9mm ~ 3.5mm, and width is 1.5mm ~ 2.5mm.Described backward L-shaped microstrip line 7 is identical with the shape size of L shaped microstrip line 8, by a longitudinal moment shaped microstrip line and a square microstrip line composition, wherein the length of longitudinal moment shaped microstrip line is 2mm ~ 2.5mm, width is 1mm ~ 1.2mm, the length of square microstrip line is 0.9mm ~ 1.2mm, and width is 0.9mm ~ 1.2mm.
Embodiment 1
Open rectangle ring band stop filter:
Select dielectric constant be 4.4 glass-epoxy material make micro-belt substrate, thickness is 0.8m.The length of substrate is length is 23mm ~ 25mm, and width is 14mm ~ 16mm.Horizontal T-shaped input transmission line is identical with the shape size that horizontal T-shaped exports transmission line, by two horizontal rectangle transmission line compositions, wherein the length of the horizontal rectangle transmission line in outside is 4mm ~ 6mm, width is 1.6mm ~ 2.2mm, wherein the length of the horizontal rectangle transmission line in inner side is 1.8mm ~ 2.4mm, and width is 1mm ~ 1.5mm.Two G shaped microstrip line is made up of at bottom fluting and two longitudinal moment shaped microstrip lines a straight-flanked ring microstrip line, wherein the total length of straight-flanked ring microstrip line is 11mm ~ 14mm, overall width is 9mm ~ 12mm, the width of ring is 1mm ~ 2mm, slotting length is 2mm ~ 2.5mm, the shape size of two longitudinal moment shaped microstrip lines is identical, and length is 4mm ~ 4.5mm, and width is 1mm ~ 1.2mm.Left F shaped microstrip line is identical with the shape size of right inverted-F shaped microstrip line, by two longitudinal moment shaped microstrip lines and two transverse moment shaped microstrip line compositions, wherein the length of the horizontal rectangle in upper end is 3.5mm ~ 4mm, width is 0.3mm ~ 0.5mm, the length of the horizontal rectangle in lower end is 2mm ~ 3mm, width is 1mm ~ 2mm, the length of upper end longitudinal moment shaped microstrip line is for being 2.5mm ~ 3mm, width is 0.3mm ~ 0.5mm, the length of lower end longitudinal moment shaped microstrip line is 2.9mm ~ 3.5mm, and width is 1.5mm ~ 2.5mm.Backward L-shaped microstrip line is identical with the shape size of L shaped microstrip line, by a longitudinal moment shaped microstrip line and a square microstrip line composition, wherein the length of longitudinal moment shaped microstrip line is 2mm ~ 2.5mm, width is 1mm ~ 1.2mm, the length of square microstrip line is 0.9mm ~ 1.2mm, and width is 0.9mm ~ 1.2mm.The property indices of filter adopts CST software to test, and the performance curve of gained filter as shown in Figure 2.As seen from the figure, in 1.5GHz ~ 3.014GHz frequency range, transmission coefficient is all less than-3dB, has good bandreject filtering function.Fig. 3 is the Surface current distribution figure of filter when 2.4GHz.
Claims (6)
1. an open rectangle ring band stop filter, is characterized in that comprising substrate (1), horizontal T-shaped input transmission line (2), horizontal T-shaped output transmission line (3), two G shaped microstrip line (4), left F shaped microstrip line (5), right inverted-F shaped microstrip line (6), backward L-shaped microstrip line (7), L shaped microstrip line (8), the upper surface of substrate (1) is provided with horizontal T-shaped input transmission line (2), horizontal T-shaped exports transmission line (3), two G shaped microstrip line (4), left F shaped microstrip line (5), right inverted-F shaped microstrip line (6), backward L-shaped microstrip line (7), L shaped microstrip line (8), the left end of horizontal T-shaped input transmission line (2) is connected with the right-hand member of two G shaped microstrip line (4), the right-hand member of left F shaped microstrip line (5) is connected with the left end of two G shaped microstrip line (4) opening part, the bottom of L shaped microstrip line (8) is connected with the left upper end of two G shaped microstrip line (4) opening part, the left end of right inverted-F shaped microstrip line (6) is connected with the right-hand member of two G shaped microstrip line (4) opening part, the bottom of backward L-shaped microstrip line (7) is connected with the upper right side of two G shaped microstrip line (4) opening part, the right-hand member that horizontal T-shaped exports transmission line (3) is connected with the left end of two G shaped microstrip line (4).
2. a kind of open rectangle 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 23mm ~ 25mm, and width is 14mm ~ 16mm.
3. a kind of open rectangle ring band stop filter as claimed in claim 1, it is characterized in that described horizontal T-shaped input transmission line (2) is identical with the shape size that horizontal T-shaped exports transmission line (3), by two horizontal rectangle transmission line compositions, wherein the length of the horizontal rectangle transmission line in outside is 4mm ~ 6mm, width is 1.6mm ~ 2.2mm, wherein the length of the horizontal rectangle transmission line in inner side is 1.8mm ~ 2.4mm, and width is 1mm ~ 1.5mm.
4. a kind of open rectangle ring band stop filter as claimed in claim 1, it is characterized in that described two G shaped microstrip lines (4) are made up of at bottom fluting and two longitudinal moment shaped microstrip lines a straight-flanked ring microstrip line, wherein the total length of straight-flanked ring microstrip line is 11mm ~ 14mm, overall width is 9mm ~ 12mm, the width of ring is 1mm ~ 2mm, slotting length is 2mm ~ 2.5mm, the shape size of two longitudinal moment shaped microstrip lines is identical, length is 4mm ~ 4.5mm, and width is 1mm ~ 1.2mm.
5. a kind of open rectangle ring band stop filter as claimed in claim 1, it is characterized in that described left F shaped microstrip line (5) is identical with the shape size of right inverted-F shaped microstrip line (6), by two longitudinal moment shaped microstrip lines and two transverse moment shaped microstrip line compositions, wherein the length of the horizontal rectangle in upper end is 3.5mm ~ 4mm, width is 0.3mm ~ 0.5mm, the length of the horizontal rectangle in lower end is 2mm ~ 3mm, width is 1mm ~ 2mm, the length of upper end longitudinal moment shaped microstrip line is for being 2.5mm ~ 3mm, width is 0.3mm ~ 0.5mm, the length of lower end longitudinal moment shaped microstrip line is 2.9mm ~ 3.5mm, width is 1.5mm ~ 2.5mm.
6. a kind of open rectangle ring band stop filter as claimed in claim 1, it is characterized in that described backward L-shaped microstrip line (7) is identical with the shape size of L shaped microstrip line (8), by a longitudinal moment shaped microstrip line and a square microstrip line composition, wherein the length of longitudinal moment shaped microstrip line is 2mm ~ 2.5mm, width is 1mm ~ 1.2mm, the length of square microstrip line is 0.9mm ~ 1.2mm, and width is 0.9mm ~ 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086859.9U CN204407453U (en) | 2015-02-06 | 2015-02-06 | Open rectangle ring band stop filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086859.9U CN204407453U (en) | 2015-02-06 | 2015-02-06 | Open rectangle ring band stop filter |
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| Publication Number | Publication Date |
|---|---|
| CN204407453U true CN204407453U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520086859.9U Expired - Fee Related CN204407453U (en) | 2015-02-06 | 2015-02-06 | Open rectangle ring band stop filter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684510A (en) * | 2016-12-28 | 2017-05-17 | 中国计量大学 | Open hexahedral annular adjustable dual-band filter based on graphene |
| CN106848504A (en) * | 2017-04-01 | 2017-06-13 | 电子科技大学 | A kind of micro-strip double-G type narrow band filter |
| CN109687066A (en) * | 2018-12-29 | 2019-04-26 | 南京邮电大学 | A kind of miniature ultra wide band plane bandstop filter |
-
2015
- 2015-02-06 CN CN201520086859.9U patent/CN204407453U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684510A (en) * | 2016-12-28 | 2017-05-17 | 中国计量大学 | Open hexahedral annular adjustable dual-band filter based on graphene |
| CN106848504A (en) * | 2017-04-01 | 2017-06-13 | 电子科技大学 | A kind of micro-strip double-G type narrow band filter |
| CN106848504B (en) * | 2017-04-01 | 2019-06-14 | 电子科技大学 | A kind of micro-strip double-G type narrow band filter |
| CN109687066A (en) * | 2018-12-29 | 2019-04-26 | 南京邮电大学 | A kind of miniature ultra wide band plane bandstop filter |
| CN109687066B (en) * | 2018-12-29 | 2019-11-12 | 南京邮电大学 | A kind of miniature ultra wide band plane bandstop filter |
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| Date | Code | Title | Description |
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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: 20150617 Termination date: 20160206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |