CN104810582A - Triangular patch slotting dual-mode filter - Google Patents
Triangular patch slotting dual-mode filter Download PDFInfo
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- CN104810582A CN104810582A CN201510152886.6A CN201510152886A CN104810582A CN 104810582 A CN104810582 A CN 104810582A CN 201510152886 A CN201510152886 A CN 201510152886A CN 104810582 A CN104810582 A CN 104810582A
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- triangular patch
- triangle patch
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- filter
- triangle
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Abstract
The invention discloses a triangular patch slotting dual-mode filter which comprises an equilateral triangular patch. A rectangular horizontal slot is formed in the middle of the triangular patch, two rectangular vertical slots are symmetrically formed in a bottom edge of the triangular patch, feeder lines are positioned on two sides of the triangular patch, one edge of each feeder line is parallel to side edges of the triangular patch, the other edge of each feeder line is of a 120-degree angular structure parallel to the bottom edge of the triangular patch. By the aid of a microstrip structure, the rectangular horizontal slot and the two rectangular vertical slots, and the working frequency of a resonator is further reduced, so that miniaturization and low loss of the filter are realized.
Description
Technical field
The present invention relates to a kind of filter, particularly relate to a kind of triangle patch fluting dual mode filter.
Background technology
Microfilter is as the device being separated and combining various different frequency signals, and play very important effect in a wireless communication system, dual mode filter is one of the most effective means of microwave band-pass filter miniaturization.Micro-band flat filter owing to easily installing, the advantage of low cost, be the focus of microwave filter designs for high performance always.Compared with traditional wire Structure Filter, patch filter also has the advantage that conductor losses is low, power capacity is high.The existing research about SMD dual mode filter relates generally to square, circular and superconduction paster dual mode filter.
Publication number be " a kind of T-shaped grooved triangular patch dual-mode micro-strip band pass filter " of the Chinese patent " glass boxing apparatus " of CN102074778 relate to a kind of structure simple, be convenient to process, easy to operate T-shaped grooved triangular patch dual-mode micro-strip band pass filter, this filter comprises triangle patch, triangle patch is isosceles triangle, inverse-T-shaped groove is had at the middle part of triangle patch, on the base of triangle patch, symmetry has two rectangular channels, is provided with the feeder line be connected with triangle patch in two rectangular channels.This SMD dual mode filter, because groove is very thin, can not affect the distribution of electric field under paster; Make electric current length of flow across that is vertical and horizontal direction longer by the introducing of groove, namely resonator (filter) L value becomes greatly simultaneously, with electromagnetic simulation software calculating
namely the resonance frequency of resonator is also along with reduction.
Summary of the invention
The object of the invention is to the above problem overcoming prior art existence, a kind of triangle patch fluting dual mode filter is provided, by the design of groove, the operating frequency of resonator is reduced further.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of triangle patch fluting dual mode filter, described filter comprises triangle patch, described triangle patch is equilateral triangle, the middle part of described triangle patch offers a HYDRAULIC JUMP IN HORIZONTAL RECTANGULAR CHANNELS, on base, symmetry offers two rectangular vertical grooves, the both sides being positioned at described triangle patch are provided with feeder line, and described feeder line is parallel with triangle patch side, another side parallel with triangle patch base in the angular structure of 120 °.
Further, the length of described level trough and vertical channel and width identical.
Operation principle of the present invention is:
The CURRENT DISTRIBUTION of equilateral triangle paster is divided into two kinds of patterns: one is vertically flow, and is distributed in the top of paster; Two is flow in the horizontal direction, is distributed in the bottom of paster.Because in same resonator, electric current length of flow across is longer, then operation wavelength is longer, and the resonance frequency of resonator is lower, if namely resonator resonance frequency is identical, the size of resonator just can be less.If add the stria of a vertical direction at paster center, because groove is very thin, almost do not affect the pattern of electric current perpendicular flow, but hinder the pattern of levels of current flowing, make its electric current length of flow across elongated, the resonance frequency of resonator reduces.Accordingly, the present invention adopts the direction of horizontal and vertical on paster to arrange stria simultaneously, makes the electric length of flow across of two patterns all elongated, finally makes the resonance frequency of total paster effectively reduce.
The invention has the beneficial effects as follows:
The present invention adopts microstrip structure, by the setting of a HYDRAULIC JUMP IN HORIZONTAL RECTANGULAR CHANNELS and two rectangular vertical grooves, the operating frequency of resonator is reduced further, thus realizes miniaturization and the low-loss of filter.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of embodiment of the present invention;
Fig. 2 is the scale diagrams of a kind of embodiment of the present invention;
Number in the figure illustrates: 1-triangle patch, 11-level trough, 12-vertical channel, 2-feeder line,
The a-paster length of side,
The distance on b-feeder line base and paster base,
Level height between c-feeder line both sides,
Distance between d-two vertical channel,
The distance on e-level trough and paster summit.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
As shown in Figure 1, a kind of triangle patch fluting dual mode filter, described filter comprises triangle patch 1, described triangle patch 1 is equilateral triangle, the middle part of described triangle patch 1 offers a HYDRAULIC JUMP IN HORIZONTAL RECTANGULAR CHANNELS 11, and on base, symmetry offers two rectangular vertical grooves 12, and length and the width of level trough 11 and vertical channel 12 are identical, length is 7.0mm, and width is 0.2mm; The both sides being positioned at described triangle patch 1 are provided with feeder line 2, and described feeder line 2 is parallel with triangle patch 1 side, another side parallel with triangle patch 1 base in the angular structure of 120 °.
Wherein, the size of above-mentioned filter is arranged as shown in Figure 2: a=12.0mm, b=0.2mm, c=6.2mm, d=3.4mm, e=4.8mm.
The equilateral triangle paster length of side 12 millimeters of the present invention, when not adding groove, operating frequency is 5.16GHz, adds the final operating frequency of groove optimization and is reduced to 3.94GHz.If frequency is identical, the resonator adding groove, compared with original resonator, can make the length of side of equilateral triangle paster reduce 25%.In addition, along with the reduction adding groove patch resonant frequency, the radiation loss of paster also can decrease.
Claims (2)
1. a triangle patch fluting dual mode filter, described filter comprises triangle patch (1), described triangle patch (1) is equilateral triangle, it is characterized in that: the middle part of described triangle patch (1) offers a HYDRAULIC JUMP IN HORIZONTAL RECTANGULAR CHANNELS (11), on base, symmetry offers two rectangular vertical grooves (12), the both sides being positioned at described triangle patch (1) are provided with feeder line (2), described feeder line (2) is while parallel with triangle patch (1) side, another side parallel with triangle patch (1) base in the angular structure of 120 °.
2. triangle patch according to claim 1 fluting dual mode filter, is characterized in that: length and the width of described level trough (11) and vertical channel (12) are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152886.6A CN104810582A (en) | 2015-04-02 | 2015-04-02 | Triangular patch slotting dual-mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152886.6A CN104810582A (en) | 2015-04-02 | 2015-04-02 | Triangular patch slotting dual-mode filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104810582A true CN104810582A (en) | 2015-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510152886.6A Pending CN104810582A (en) | 2015-04-02 | 2015-04-02 | Triangular patch slotting dual-mode filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104810582A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914434A (en) * | 2016-05-09 | 2016-08-31 | 南京理工大学 | Triangle three-mode band pass filter |
| CN113381144A (en) * | 2021-06-07 | 2021-09-10 | 南京智能高端装备产业研究院有限公司 | High-performance balanced band-pass filter based on equilateral triangle patch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1322021A (en) * | 1969-06-27 | 1973-07-04 | Molins Machine Co Inc | Cigarette filters and the manufacture thereof |
| CN102074778A (en) * | 2011-01-12 | 2011-05-25 | 上海海事大学 | T-shaped grooved triangular patch dual-mode micro-strip band pass filter |
| CN102299420A (en) * | 2011-06-17 | 2011-12-28 | 哈尔滨工程大学 | Annular multiple-wave-trap ultra-wideband antenna |
| CN204651443U (en) * | 2015-04-02 | 2015-09-16 | 殷翠萍 | Triangle patch fluting dual mode filter |
-
2015
- 2015-04-02 CN CN201510152886.6A patent/CN104810582A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1322021A (en) * | 1969-06-27 | 1973-07-04 | Molins Machine Co Inc | Cigarette filters and the manufacture thereof |
| CN102074778A (en) * | 2011-01-12 | 2011-05-25 | 上海海事大学 | T-shaped grooved triangular patch dual-mode micro-strip band pass filter |
| CN102299420A (en) * | 2011-06-17 | 2011-12-28 | 哈尔滨工程大学 | Annular multiple-wave-trap ultra-wideband antenna |
| CN204651443U (en) * | 2015-04-02 | 2015-09-16 | 殷翠萍 | Triangle patch fluting dual mode filter |
Non-Patent Citations (1)
| Title |
|---|
| 杨婷等: "新型三角贴片加槽双模滤波器的设计", 《电子设计工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914434A (en) * | 2016-05-09 | 2016-08-31 | 南京理工大学 | Triangle three-mode band pass filter |
| CN113381144A (en) * | 2021-06-07 | 2021-09-10 | 南京智能高端装备产业研究院有限公司 | High-performance balanced band-pass filter based on equilateral triangle patch |
| CN113381144B (en) * | 2021-06-07 | 2022-03-11 | 南京智能高端装备产业研究院有限公司 | High-performance balanced band-pass filter based on equilateral triangle patch |
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Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |