CN106785264A - A kind of sawtooth grooves microwave band-pass filter - Google Patents
A kind of sawtooth grooves microwave band-pass filter Download PDFInfo
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- CN106785264A CN106785264A CN201710003355.XA CN201710003355A CN106785264A CN 106785264 A CN106785264 A CN 106785264A CN 201710003355 A CN201710003355 A CN 201710003355A CN 106785264 A CN106785264 A CN 106785264A
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- microwave
- filtering
- groove
- curved surface
- pass filter
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
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Abstract
The invention discloses a kind of sawtooth grooves microwave band-pass filter, wherein, including the filtering chamber that the dieelctric sheet set by two panels balance is formed, the opposite face of microwave input port and microwave output end is arranged with guided wave curved surface on dieelctric sheet described in two panels, the filtering groove surface for filtering is arranged with the middle part opposite face of dieelctric sheet described in two panels, described guided wave curved surface is the curved surface of the exponential type curve structure set along microwave transmission direction, 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 zigzag.A kind of sawtooth grooves microwave band-pass filter of the invention can fully improve the constraint effect of microwave band sub-wavelength so that wave filter anti-electromagnetic interference capability is more preferable.
Description
Technical field
The present invention relates to a kind of artificial surface phasmon type microwave filter, more specifically, more particularly to one kind is sawed
Mark of mouth groove microwave band-pass filter.
Background technology
With the arrival in big data epoch, the demand of information is in explosive growth, and field of mobile communication requirement can be manufactured
Go out integrated level microwave device higher, however as the continuous diminution of microwave integrated circuit size, technically occur in that a series of
Problem, including, the electromagnetic interference noise of the extra small initiation of transmission line spacing, RC retardation ratio reaches capacity causes microwave device work unstable
The problems such as determining.And artificial surface phasmon type microwave device is compared to common microwave dielectric properties, with special property,
For example it has stronger anti-electromagnetic interference capability, sensitivity higher and bigger superiority bandwidth, and can break through diffraction limit reality
The miniaturization (such as nano-scale) of existing device.Therefore, not adapted to current extensive microwave integrated for existing microwave device
The development of circuit, a kind of new artificial surface phasmon type microwave filter is urgently invented based on such technical background.
The content of the invention
It is an object of the invention to provide a kind of sawtooth grooves microwave band-pass filter, the wave filter can fully improve micro-
The constraint effect of ripple wave band sub-wavelength so that wave filter anti-electromagnetic interference capability is more preferable.
The technical solution adopted by the present invention is as follows：
A kind of sawtooth grooves microwave band-pass filter, wherein, including the filtering formed by the dieelctric sheet that two panels balance is set
Chamber, the opposite face of microwave input port and microwave output end is arranged with guided wave curved surface on dieelctric sheet described in two panels, in two panels institute
State dieelctric sheet middle part opposite face be arranged with for filter filtering groove surface, described guided wave curved surface is along microwave transmission side
To the curved surface of the exponential type curve structure for setting, described filtering groove surface is in the vertical microwave transmission direction of dieelctric sheet opposite face
Multiple filtering grooves of setting, the groove face of the filtering groove is zigzag.
Further, the exponential curve equation of described guided wave curved surface is：
Y=d+p* (exp (a*x/L1-1)/(exp (a) -1)
Wherein d is exponential curve position parameter, and value is 0.5~15mm, and p, a are exponential curve form factor, wherein,
P values are 0.2~8mm, and k values are 1~30mm, and L1 is length of the guided wave curved surface along microwave transmission direction.
Further, the filtering groove described in multiple is uniformly arranged, and the groove face width of the filtering groove is 1~4mm, institute
The groove face for stating filtering groove is highly 1~4mm, and the distance between two neighboring filtering groove is 3~7mm.
Further, the filtering groove surface is 90~130mm, the filtering groove surface along the length in microwave transmission direction
The width in vertical microwave transmission direction is 11~16mm, and the guided wave curved surface is 11~14mm along the length in microwave transmission direction.
Further, the length in the vertical microwave transmission direction of the dieelctric sheet is 12~52mm, the thickness of the dieelctric sheet
It is 0.3~0.7mm.
Further, the filtering groove specular on dieelctric sheet described in two panels.
Compared with prior art, the device have the advantages that being：
A kind of sawtooth grooves microwave band-pass filter of the invention, wherein, including the dieelctric sheet shape set by two panels balance
Into filtering chamber, the opposite face of microwave input port and microwave output end is arranged with guided wave curved surface on dieelctric sheet described in two panels,
The filtering groove surface for filtering is arranged with the middle part opposite face of dieelctric sheet described in two panels, described guided wave curved surface is along micro-
The curved surface of the exponential type curve structure that ripple direction of transfer is set, described filtering groove surface is in the vertical microwave of dieelctric sheet opposite face
Multiple filtering grooves that direction of transfer is set, the groove face of the filtering groove is zigzag.Realize that microwave is believed using guided wave curved surface
Number input or output, employ multiple zigzag filtering groove structures in groove surface is filtered, improve microwave band sub-
The constraint effect of wavelength so that the anti-electromagnetic interference capability of wave filter is more excellent.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the S parameter performance diagram of the specific embodiment of the invention；
Fig. 3 is the normal direction distribution map of the electric field of the specific embodiment of the invention.
Specific embodiment
With reference to specific embodiment, technical scheme is described in further detail, but do not constitute it is right
Any limitation of the invention.
Shown in reference picture 1, a kind of sawtooth grooves microwave band-pass filter of the invention, it is characterised in that including by two panels
The filtering chamber that the dieelctric sheet 1 for setting is formed is balanced, microwave input port and microwave output end is relative on dieelctric sheet described in two panels 1
Face is arranged with guided wave curved surface 2, and the filtering groove surface for filtering is arranged with the middle part opposite face of dieelctric sheet described in two panels 1
3, described guided wave curved surface 2 is the curved surface of the exponential type curve structure set along microwave transmission direction, described filtering groove surface 3
It is the multiple filtering grooves 4 set in the vertical microwave transmission direction of the opposite face of dieelctric sheet 1, the groove face of the filtering groove 4 is saw
Tooth form.The input or output of microwave signal are realized using guided wave curved surface, multiple zigzag filters are employed in groove surface is filtered
The structure of ripple groove 4, improves the constraint effect of microwave band sub-wavelength so that the bandwidth and anti-electromagnetic interference capability of wave filter are more
For excellent.Therefore, a kind of sawtooth grooves microwave band-pass filter of the invention can be applied to the civilian microwave communication of L~S-band
In system, with certain engineering practical value.
Wave filter of the invention counts out the physical dimension that circular arc filters groove 4, Ran Houxuan according to customer demand in advance
Select with the wave filter for being adapted to size filter groove 4, can accurately regulate and control the free transmission range and stopband rejection characteristic of wave filter.
And, the whole geometry size that the circular arc filtering structure of groove 4 does not increase wave filter is opened up, enter while miniaturization is ensured
The one-step optimization filtering characteristic of bandpass filter.
The physical dimension of the zigzag filtering groove 4 of regulation can accurately regulate and control free transmission range and the stopband suppression of wave filter
Characteristic processed, with the increase of the filtering size of groove 4, filter high-frequency cut-off frequency reduces, and free transmission range constantly reduces.And,
The whole geometry size that the zigzag filtering structure of groove 4 does not increase wave filter is opened up, one is entered while miniaturization is ensured
Step optimizes the filtering characteristic of bandpass filter.
The exponential curve equation of described guided wave curved surface 2 is：
Y=d+p* (exp (a*x/L1-1)/(exp (a) -1)
Wherein d is exponential curve position parameter, and value is 0.5~15mm, and p, a are exponential curve form factor, wherein,
P values are 0.2~8mm, and k values are 1~30mm, and L1 is length of the guided wave curved surface 2 along microwave transmission direction.Guided wave curved surface 2 is adopted
With exponential type curve structure, to prevent electromagnetic resistivity to be mutated and realize and filter the good linking of groove surface 3.
Filtering groove 4 described in multiple is uniformly arranged, and the groove face width of the filtering groove 4 is 1~4mm, the filtering
The groove face of groove 4 is highly that the distance between 1~4mm, two neighboring filtering groove 4 is 3~7mm, by the filter for setting sawtooth pattern
Ripple groove 4 can regulate and control the free transmission range of wave filter, and closely constraint electromagnetic field prevents electromagnetic interference.
The filtering groove surface 3 is 90~130mm along the length L2 in microwave transmission direction, and the filtering groove surface 3 is vertical
The width in microwave transmission direction is 11~16mm, and the guided wave curved surface 2 is 11~14mm along the length in microwave transmission direction, is utilized
Guided wave curved surface 2 can realize the matched well of electromagnetism field impedance and pattern.
The length in the vertical microwave transmission direction of the dieelctric sheet 1 is 12~52mm, the thickness of the dieelctric sheet 1 for 0.3~
0.7mm.The specular of filtering groove 4 on dieelctric sheet 1 described in two panels, makes the constraint effect effect of microwave band sub-wavelength more
It is good.
Embodiment
The structure of the microwave filter of the present embodiment is identical with implementation method, and described dieelctric sheet 1 uses dielectric constant
It is 2.65 substrate, a kind of physical dimension data of sawtooth grooves microwave band-pass filter each several part such as institute of table one of the invention
Show：
The microwave filter each several part physical size (unit of table one：mm)
The filtering curve of physical dimension data microwave filter as shown in Table 1 is calculated such as through Fdtd Method
Shown in Fig. 2, filter centre frequency is 7.56GHz, at this insertion loss be 1.52dB, -3dB passbands be 1.78~
13.33GHz, passband internal reflection is less than -10.0dB, and ripple shake is less than 0.67dB.Can be obtained according to Fig. 3, the wave filter exists
It is stopband in the range of 13.598~16.073GHz, its transmission S21 is less than 30dB in this frequency range, and physical dimension data is such as
It is as shown in Figure 3 that microwave filter shown in table one works in the normal direction distribution map of the electric field obtained during 3GHz.Can according to Fig. 3
, when the wave filter works in passband, its microwave electric field is mainly bound by around circular arc filtering groove 4, and leakage is little, has
Improve to effect the anti-electromagnetic interference capability of wave filter.
The foregoing is only presently preferred embodiments of the present invention, it is all made in the range of the spirit and principles in the present invention it is any
Modification, equivalent and improvement etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of sawtooth grooves microwave band-pass filter, it is characterised in that the dieelctric sheet (1) including being set by two panels balance is formed
Filtering chamber, the opposite face of microwave input port and microwave output end is arranged with guided wave curved surface on dieelctric sheet described in two panels (1)
(2), the middle part opposite face in dieelctric sheet described in two panels (1) is arranged with the filtering groove surface (3) for filtering, described guided wave
Curved surface (2) is the curved surface of the exponential type curve structure set along microwave transmission direction, and described filtering groove surface (3) is in medium
Multiple filtering groove (4) that the vertical microwave transmission direction of piece (1) opposite face is set, the groove face of filtering groove (4) is sawtooth
Shape.
2. a kind of sawtooth grooves microwave band-pass filter according to claim 1, it is characterised in that described guided wave curved surface
(2) exponential curve equation is：
Y=d+p* (exp (a*x/L1-1)/(exp (a) -1)
Wherein d is exponential curve position parameter, and value is 0.5~15mm, and p, a are exponential curve form factor, wherein, p takes
It is 0.2~8mm to be worth, and k values are 1~30mm, and L1 is length of the guided wave curved surface (2) along microwave transmission direction.
3. a kind of sawtooth grooves microwave band-pass filter according to claim 1, it is characterised in that the filtering described in multiple
Groove (4) is uniformly arranged, and the groove face width of filtering groove (4) is 1~4mm, and the groove face of the filtering groove (4) is highly
Distance between 1~4mm, two neighboring filtering groove (4) is 3~7mm.
4. a kind of sawtooth grooves microwave band-pass filter according to claim 1, it is characterised in that the filtering groove surface
(3) it is 90~130mm along the length in microwave transmission direction, the width in the vertical microwave transmission direction of the filtering groove surface (3) is
11~16mm, the guided wave curved surface (2) is 11~14mm along the length in microwave transmission direction.
5. a kind of sawtooth grooves microwave band-pass filter according to claim 1, it is characterised in that the dieelctric sheet (1)
The length in vertical microwave transmission direction is 12~52mm, and the thickness of the dieelctric sheet (1) is 0.3~0.7mm.
6. a kind of sawtooth grooves microwave band-pass filter according to claim 1, it is characterised in that dieelctric sheet described in two panels
(1) filtering groove (4) specular on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003355.XA CN106785264A (en) | 2017-01-04 | 2017-01-04 | A kind of sawtooth grooves microwave band-pass filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003355.XA CN106785264A (en) | 2017-01-04 | 2017-01-04 | A kind of sawtooth grooves microwave band-pass filter |
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|---|---|
| CN106785264A true CN106785264A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710003355.XA Pending CN106785264A (en) | 2017-01-04 | 2017-01-04 | A kind of sawtooth grooves microwave band-pass filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301410A (en) * | 2018-09-26 | 2019-02-01 | 安徽矽芯微电子科技有限公司 | A kind of SIW zigzag cross-coupling band pass filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531876A (en) * | 2013-10-25 | 2014-01-22 | 东南大学 | Efficient transmission line of surface plasmon |
| CN104730624A (en) * | 2015-03-31 | 2015-06-24 | 东南大学 | Device for realizing conversion between space waves and artificial terahertz surface plasmon polariton (SPP) waves |
| CN105811056A (en) * | 2016-04-21 | 2016-07-27 | 六盘水师范学院 | Artificial plasmon type band pass filter |
| CN105958162A (en) * | 2016-06-15 | 2016-09-21 | 六盘水师范学院 | Microwave low-pass filter with semi-circular-arc groove structure |
| CN206370482U (en) * | 2017-01-04 | 2017-08-01 | 梧州学院 | A kind of sawtooth grooves microwave band-pass filter |
-
2017
- 2017-01-04 CN CN201710003355.XA patent/CN106785264A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531876A (en) * | 2013-10-25 | 2014-01-22 | 东南大学 | Efficient transmission line of surface plasmon |
| CN104730624A (en) * | 2015-03-31 | 2015-06-24 | 东南大学 | Device for realizing conversion between space waves and artificial terahertz surface plasmon polariton (SPP) waves |
| CN105811056A (en) * | 2016-04-21 | 2016-07-27 | 六盘水师范学院 | Artificial plasmon type band pass filter |
| CN105958162A (en) * | 2016-06-15 | 2016-09-21 | 六盘水师范学院 | Microwave low-pass filter with semi-circular-arc groove structure |
| CN206370482U (en) * | 2017-01-04 | 2017-08-01 | 梧州学院 | A kind of sawtooth grooves microwave band-pass filter |
Non-Patent Citations (1)
| Title |
|---|
| 吴超: "基于表面等离激元的窄带滤波器的设计及研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301410A (en) * | 2018-09-26 | 2019-02-01 | 安徽矽芯微电子科技有限公司 | A kind of SIW zigzag cross-coupling band pass filter |
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