CN205790297U - A kind of artificial phasmon type microwave filter of rhombus groove structure - Google Patents
A kind of artificial phasmon type microwave filter of rhombus groove structure Download PDFInfo
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- CN205790297U CN205790297U CN201620477034.4U CN201620477034U CN205790297U CN 205790297 U CN205790297 U CN 205790297U CN 201620477034 U CN201620477034 U CN 201620477034U CN 205790297 U CN205790297 U CN 205790297U
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Abstract
The utility model discloses the artificial phasmon type microwave filter of a kind of rhombus groove structure, dielectric-slab, dielectric-slab is provided with metal micro-strip, and the back side of metal micro-strip is provided with metal ground；Described metal micro-strip includes micro-strip waveguide segment, and micro-strip waveguide segment is connected with artificial surface phasmon section through changeover portion；Structure being distributed in described artificial surface phasmon section is diamond groove.This utility model has avoids electromagnetic field strong reflection and the strong feature of anti-electromagnetic interference capability.
Description
Technical field
This utility model relates to the wave filter of a kind of communication field, particularly one and has diamond groove structure
Microwave band artificial phasmon wave filter.
Background technology
Big data age, along with the demand of information is explosive growth, field of mobile communication requires to manufacture
Go out the higher microwave device of integrated level, however as constantly reducing of high-frequency integrated circuit size, technically go out
Having showed series of problems, such as little to certain degree when the size of microwave device, the electromagnetic interference of device is made an uproar
Sound, RC delay etc. reaches capacity and causes device job insecurity, and the most existing microwave device does not adapts to
The development of current extensive microwave integrated circuit.
Utility model content
The purpose of this utility model is, it is provided that the artificial phasmon type microwave filtering of a kind of rhombus groove structure
Device, this structure improves microwave section sub-wavelength constraint effect, it is achieved SSPPs filter effect.
The technical solution of the utility model: the artificial phasmon type microwave filter of a kind of rhombus groove structure,
Including dielectric-slab, dielectric-slab is provided with metal micro-strip, and the back side of metal micro-strip is provided with metal ground；Described gold
Belonging to micro-strip and include micro-strip waveguide segment, micro-strip waveguide segment is connected with artificial surface phasmon section through changeover portion；Institute
Structure being distributed in the artificial surface phasmon section stated is diamond groove.
The artificial phasmon type microwave filter of aforesaid rhombus groove structure, groove depth d of described diamond groove
Value be 2～8mm, the value of groove width w1 is 2～6mm, and the value of width of rebate w2 is 1～3mm, groove
Type period p is 2～10mm, and grooved period p is 2～10mm.
The artificial phasmon type microwave filter of aforesaid rhombus groove structure, the width of described metal micro-strip is
H, its value is 8～15mm；The width on metal ground is w, and its value is 40～80mm.
The artificial phasmon type microwave filter of aforesaid rhombus groove structure, the length of described micro-strip waveguide segment
For L1, its value is 3～10mm, a length of L2 of changeover portion, and its value is 40～80mm.Artificial surface
Phasmon segment length is L3, and its value is 80～130mm.
The artificial phasmon type microwave filter of aforesaid rhombus groove structure, described changeover portion is provided with the degree of depth
The diamond groove of gradual change.
The beneficial effects of the utility model: compared with prior art, this utility model is (following at micro-strip waveguide segment
With its length symbol L1Substitute) and artificial surface phasmon section (following its length symbol L3Substitute) between arrange
Changeover portion is (below with its length symbol L2Substitute), by this structure, it is achieved that electromagnetic field is at L1And L3Middle biography
The smooth transition broadcast, it is to avoid when electromagnetic field is converted into SSPPs mode propagation by Quasi-TEM mode because of pattern and
Impedance mismatch and the strong microwave electric field reflection that occurs；This utility model is at L2On be additionally provided with degree of depth gradual change
Diamond groove；By this structure, the Quasi-TEM mode transition to SSPPs pattern can be realized further, subtract
Few microwave electric field reflection.This utility model is by L3On a series of diamond groove is set；By this structure,
Electromagnetic wave is bound in around diamond groove when transmission, thus greatly reduces plurality of transmission lines transmission
Time the electromagnetic interference that occurs because spacing is the least so that anti-electromagnetic interference capability is greatly enhanced, and also strengthens simultaneously
The stability during work of high density microwave integrated circuit, moreover, because anti-electromagnetic interference capability increases
By force, this utility model can also reduce the spacing between the metal micro-strip of microwave integrated circuit to realize high integrated level
With the miniaturization of device, thus the development of current extensive microwave integrated circuit can be better adapted to.This practicality
Novel cut-off frequency and the electromagnetic field that can also be regulated and controled microwave transmission line by the physical dimension of regulation diamond groove
Distribution, adjusts the constraint effect of electromagnetic wave simultaneously, and applicant finds after carrying out lot of experiments, when rhombus is recessed
Groove depth d of groove between 2～8mm mmmm, metal ground width w between 40～80, the length of micro-strip waveguide segment
Degree L1 between 3～10mm, length L2 of changeover portion between 40～80mm, from excimer segment length L3 80～
Between 130mm, electromagnetic field is had and well fetters effect by diamond groove.
In order to preferably prove the beneficial effects of the utility model, application has carried out following experiment: applicant sets
Count the artificial phasmon type microwave filter sample of a rhombus groove structure, the parameter of sample such as table 1.
Table 1: microwave filter each several part physical size (unit: mm)
The dielectric-slab of this sample uses dielectric constant to be the substrate of 2.65, the filtering curve warp to this sample
Fdtd Method calculates as shown in Figure 4, and in Fig. 4, S11 is filter reflection coefficients, and S21 is that wave filter passes
Defeated coefficient, this sample is low-pass filtering, and its-3dB passband is that direct current leads to 5.6076GHz, sample whole
In band, ripple shake is better than-1.4dB, and passband internal reflection is less.
Fig. 5 be sample when 5GHz band operation, the distribution map of the electric field around diamond groove, as seen from Figure 5,
Its electric field is mainly bound by around diamond groove, spreads less.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the rearview in Fig. 1；
Fig. 3 is the enlarged diagram at the A in Fig. 1；
Fig. 4 be the diamond groove degree of depth be 4.5mm, the S parameter performance diagram of microwave filter；
Fig. 5 be wave filter sample when 5GHz band operation, diamond groove normal direction distribution map of the electric field.
Being labeled as in accompanying drawing: 1-dielectric-slab, 2-metal micro-strip, 3-micro-strip waveguide segment, 4-changeover portion, 5-
Artificial surface phasmon section, 6-diamond groove, 7-metal ground.
Detailed description of the invention
With embodiment, this utility model is further described below in conjunction with the accompanying drawings, but is not intended as this reality
Foundation with novel restriction.
Embodiment.The artificial phasmon type microwave filter of a kind of rhombus groove structure, is constituted such as Fig. 1 and 3
Shown in, including dielectric-slab 1, dielectric-slab 1 is provided with metal micro-strip 2, and the back side of metal micro-strip 2 is provided with metal
Ground 7；Described metal micro-strip 2 includes micro-strip waveguide segment 3, and micro-strip waveguide segment 3 is through changeover portion 4 and labor statement
Face phasmon section 5 connects；Structure being distributed in described artificial surface phasmon section 5 is diamond groove 6.
The value of groove depth d of described diamond groove 6 is 2～8mm, and the value of groove width w1 is 2～6mm, groove
The value of mouth width w2 is 1～3mm, and grooved period p is 2～10mm, and grooved period p is 2～10mm.
The width of described metal micro-strip 2 is h, and its value is 8～15mm；The width on metal ground 7 is w, its
Value is 40～80mm.
The a length of L1 of described micro-strip waveguide segment 3, its value is 3～10mm, a length of L2 of changeover portion 4,
Its value is 40～80mm.Artificial surface phasmon section 5 is a length of for L3, and its value is 80～130mm.
Described changeover portion 4 is provided with the diamond groove 6 of degree of depth gradual change.
Operation principle of the present utility model: the electromagnetic field of Quasi-TEM mode is transmitted by the micro-strip waveguide segment 3 on the left side
To changeover portion 4, changeover portion 4 gradually fades to the electromagnetic field of SSPPs pattern, and accurate in changeover portion 4
The electromagnetic field of TEM mode and SSPPs pattern coexists, when electromagnetic field arrives artificial surface phasmon section 5,
It is fully converted to the electromagnetic field of SSPPs pattern, and is transmitted at L3, SSPPs pattern electromagnetic field after transmission
Changeover portion through the right is converted into the electromagnetic field co-planar waveguide section output by the right of Quasi-TEM mode again.When
Electromagnetic field is propagated at micro-strip waveguide segment 3, and in this section, the pattern of electromagnetic field is Quasi-TEM mode, this pattern electromagnetism
Field is bound in the dielectric-slab between micro-strip waveguide segment 3 and metal ground 7；When changeover portion 4 is propagated, this section
Interior Quasi-TEM mode coexists with SSPPs pattern, wherein Quasi-TEM mode electromagnetic field be bound in changeover portion 4 with
In dielectric-slab between metal ground 7, SSPPs pattern electromagnetic field is bound in around diamond groove；Carry out at L3
During propagation, being SSPPs pattern in this section, this pattern electromagnetic field is bound in around diamond groove.
Claims (5)
1. the artificial phasmon type microwave filter of a rhombus groove structure, it is characterized in that: include dielectric-slab (1), dielectric-slab (1) is provided with metal micro-strip (2), the back side of metal micro-strip (2) with being provided with metal (7)；Described metal micro-strip (2) includes that micro-strip waveguide segment (3), micro-strip waveguide segment (3) are connected with artificial surface phasmon section (5) through changeover portion (4)；It is diamond groove (6) that structure is distributed on described artificial surface phasmon section (5).
The artificial phasmon type microwave filter of rhombus groove structure the most according to claim 1, it is characterized in that: the value of groove depth d of described diamond groove (6) is 2～8mm, the value of groove width w1 is 2～6mm, the value of width of rebate w2 is 1～3mm, and grooved period p is 2～10mm.
The artificial phasmon type microwave filter of rhombus groove structure the most according to claim 1, it is characterised in that: the width of described metal micro-strip (2) is h, and its value is 8～15mm；The width of metal ground (7) is w, and its value is 40～80mm.
The artificial phasmon type microwave filter of rhombus groove structure the most according to claim 1, it is characterized in that: a length of L1 of described micro-strip waveguide segment (3), its value is 3～10mm, the a length of L2 of changeover portion (4), its value is 40～80mm, artificial surface phasmon section (5) is a length of for L3, and its value is 80～130mm.
5. according to the artificial phasmon type microwave filter of the rhombus groove structure described in claim 1 or 4, it is characterised in that: described changeover portion (4) is provided with the diamond groove (6) of degree of depth gradual change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477034.4U CN205790297U (en) | 2016-05-24 | 2016-05-24 | A kind of artificial phasmon type microwave filter of rhombus groove structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477034.4U CN205790297U (en) | 2016-05-24 | 2016-05-24 | A kind of artificial phasmon type microwave filter of rhombus groove structure |
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| CN205790297U true CN205790297U (en) | 2016-12-07 |
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|---|---|---|---|
| CN201620477034.4U Expired - Fee Related CN205790297U (en) | 2016-05-24 | 2016-05-24 | A kind of artificial phasmon type microwave filter of rhombus groove structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785266A (en) * | 2017-01-04 | 2017-05-31 | 梧州学院 | A kind of microwave filter with five-pointed star groove |
-
2016
- 2016-05-24 CN CN201620477034.4U patent/CN205790297U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785266A (en) * | 2017-01-04 | 2017-05-31 | 梧州学院 | A kind of microwave filter with five-pointed star groove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161207 Termination date: 20170524 |