CN208489337U - A kind of broadband band-pass filter - Google Patents
A kind of broadband band-pass filter Download PDFInfo
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- CN208489337U CN208489337U CN201821372334.1U CN201821372334U CN208489337U CN 208489337 U CN208489337 U CN 208489337U CN 201821372334 U CN201821372334 U CN 201821372334U CN 208489337 U CN208489337 U CN 208489337U
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- copper coating
- pass filter
- medium substrate
- periodic grooves
- broadband band
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- 239000000758 substrate Substances 0.000 claims abstract description 50
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 35
- 238000000576 coating method Methods 0.000 claims abstract description 35
- 229910052802 copper Inorganic materials 0.000 claims abstract description 35
- 239000010949 copper Substances 0.000 claims abstract description 35
- 230000000737 periodic effect Effects 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A kind of broadband band-pass filter, including medium substrate, medium substrate two sides centre have rectangle copper coating, and both ends have trapezoidal copper coating and microstrip line, and the upside for being covered with the medium substrate of rectangular metal coating has row's metal throuth hole, constitute half module substrate integrated wave guide.There are periodic grooves on the downside of rectangle copper coating, constitute artificial surface phasmon transmitter.Trapezoidal copper coating is microstrip line-half module substrate integrated wave guide transformational structure.The broadband band-pass filter of the utility model, by the combination of half module substrate integrated wave guide and artificial surface phasmon, on the basis of retaining the characteristic of substrate integration wave-guide, size is reduced to original half, simple and compact for structure, is easily integrated.Periodic grooves are opened on the downside of half module substrate integrated wave guide copper coating and transmit artificial surface phasmon, and easy to make, production cost is low.Its insertion loss is -0.02dB or so at centre frequency 9.2GHz, and filtration efficiency is high.
Description
Technical field
The utility model belongs to microwave device technology field, and in particular to a kind of broadband band-pass filter.
Background technique
Substrate integration wave-guide upper and lower level is metal layer, and middle layer is low loss dielectric layer, in the medium substrate of metal coating
Metal throuth hole is opened in two sides, and electromagnetic wave is limited in the rectangular cavity that two rows of metal throuth holes and upper and lower copper coating are formed, due to metal
Distance between through-hole is close, can be ignored between radiation loss, therefore the spy of the propagation characteristic of substrate integration wave-guide and rectangular waveguide
Property it is similar, have light-weight, small in size, low-loss, Low emissivity, the advantages that being easily integrated.Substrate integration wave-guide is symmetrically cut
Two halves are opened, half module substrate integrated wave guide is formed, because the substrate integration wave-guide section Approximate Equivalent after vertical cutting is in perpendicular magnetic
Size so that half module substrate integrated wave guide retains the characteristic of former substrate integration wave-guide, and is reduced half on its basis by wall,
Convenient for integrating, there is broader development prospect.
Surface phasmon refer at metal with dielectric interfaces existing for free vibration electronics and photon because of phase
The mixed activation state that interaction generates is the surface electromagnetic wave propagated along interface, is declining with interface vertical direction by index
Subtract.Man-made structurization metal surface can make electromagnetic beam be tied to its surface, constitute similar with surface plasmon mode
Surface wave, referred to as artificial surface phasmon.Artificial surface phasmon, which overcomes, can not preferably observe surface etc. in microwave section
Limitation from excimer extends into microwave section.Artificial surface phasmon has the structural parameter control by changing metal
The advantages of its dispersion characteristics and cutoff frequency, therefore have unique superiority and development prospect in microwave section.
Utility model content
The purpose of this utility model is that in conjunction with the high pass characteristic and artificial surface phasmon of half module substrate integrated wave guide
Low-pass characteristic, a kind of efficient broadband band-pass filter is provided.
To achieve the above object, the technical solution of the utility model is as follows:
A kind of broadband band-pass filter, including medium substrate, medium substrate f4b, dielectric constant 2.65, loss tangent
0.001, the length of medium substrate is 124.4mm, width 11mm, with a thickness of 0.5mm, has rectangle among medium substrate two sides
Copper coating, medium substrate two sides both ends have trapezoidal copper coating and microstrip line, and rectangle copper coating both ends are sequentially connected trapezoidal copper and apply
Layer and microstrip line；Rectangle copper coating with a thickness of 0.018mm, length 86.4mm, width 9mm；The upper bottom of trapezoidal copper coating
Length is 1.8mm, and bottom length is 3.5mm, a height of 16mm, with a thickness of 0.018mm；It is covered with the medium substrate of rectangle copper coating
Upside has row's metal throuth hole, constitutes half module substrate integrated wave guide, and the diameter of metal throuth hole is 0.5mm, adjacent metal through-hole
Distance of center circle be 0.9mm；There are periodic grooves on the downside of rectangle copper coating, constitute artificial surface phasmon transmitter；It is trapezoidal
Copper coating is microstrip line-half module substrate integrated wave guide transformational structure.
It further include input port and output port, input port as the further improved technology scheme of the utility model
It is connected respectively with the microstrip line at the medium substrate both ends with output port.
As the further improved technology scheme of the utility model, the period of the periodic grooves is identical, of same size.
As the further improved technology scheme of the utility model, the reeded opening of the institute of the periodic grooves is flat
Together, the depth of the grooves on two sides of the periodic grooves is successively successively decreased, and the depth of the central slot of the periodic grooves is identical.
As the further improved technology scheme of the utility model, the recess width of the periodic grooves is 1.8mm, week
Phase is 3.6mm, and the depth of the middle section groove of the periodic grooves is 3.5mm.
Compared with prior art, the utility model has the beneficial effects that
The high pass characteristic and labor statement of a kind of broadband band-pass filter combination half module substrate integrated wave guide of the utility model
The low-pass characteristic of face phasmon has broadband bandpass characteristics, passes through half module substrate integrated wave guide and artificial surface phasmon
Combination, on the basis of retaining the characteristic of substrate integration wave-guide, size is reduced to original half, simple and compact for structure, easily
In integrated；Periodic grooves are opened on the downside of half module substrate integrated wave guide copper coating transmits artificial surface phasmon, it is easy to make,
Production cost is low；Its insertion loss is -0.02dB or so at centre frequency 9.2GHz, and filtration efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one of the utility model embodiment broadband band-pass filter；
Fig. 2 is the structural schematic diagram of the middle section groove of the periodic grooves in the utility model embodiment；
Fig. 3 is the S parameter of one of the utility model embodiment broadband band-pass filter；
In figure 1 above -2,1- microstrip line；The trapezoidal copper coating of 2-；3- rectangle copper coating；4- medium substrate；5- metal throuth hole；
6- periodic grooves.
Specific embodiment:
The utility model is described further with reference to the accompanying drawings.
Embodiment
A kind of broadband band-pass filter, as shown in Figure 1, including medium substrate 4, medium substrate 4 is f4b polytetrafluoroethylene (PTFE),
Dielectric constant 2.65, loss tangent 0.001, the length of medium substrate are 124.4mm, width 11mm, with a thickness of 0.5mm.It is situated between
There is among 4 two sides of matter substrate rectangle copper coating 3, rectangle copper coating 3 with a thickness of 0.018mm, length 86.4mm, width is
9mm.4 both ends of medium substrate have trapezoidal copper coating 2 and microstrip line 1, and 3 both ends of rectangle copper coating are sequentially connected trapezoidal copper coating 2
With microstrip line 1.The upper bottom length of trapezoidal copper coating 2 be 1.8mm, bottom length be 3.5mm, a height of 16mm, with a thickness of
0.018mm.The upside for being covered with the medium substrate 4 of rectangle copper coating 3 has row's metal throuth hole 5, constitutes half-module chip and integrates wave
It leads, the diameter of metal throuth hole 5 is 0.5mm, and the distance of center circle of two neighboring metal throuth hole 5 is 0.9mm.It is opened on the downside of rectangle copper coating 3
Periodic grooves 6 are used as artificial surface phasmon transmitter.The period of periodic grooves 6 is identical, of same size, and institute is fluted
Opening it is concordant, the depth of the groove of two side portions is successively successively decreased, and the depth of central slot is identical.The groove of periodic grooves 6
Width is 1.8mm, period 3.6mm, and Fig. 2 show middle section groove, and the depth of middle section groove is 3.5mm.
In use, input port and output port are connected with the microstrip line at 4 both ends of medium substrate respectively.It is incoming feeder, defeated
Feeder line is 50 ohm microstrips out.Half module substrate integrated wave guide is fast sonic wave guide, has lower cutoff frequency, and labor statement
Face phasmon is slow wave, there is a higher cutoff frequency, it is this design combine the high pass characteristic of half module substrate integrated wave guide with
The low-pass characteristic of artificial surface phasmon has broadband bandpass characteristics.Fig. 3 show the S ginseng of above-mentioned broadband band-pass filter
Number, it can be seen that the low-pass characteristic of its high pass characteristic for combining half module substrate integrated wave guide and artificial surface phasmon, tool
There is bandpass characteristics, bandpass range is 6.7GHz to 11.8GHz.At centre frequency 9.2GHz, insertion loss is -0.02dB left
The right side, filtration efficiency are high.
Claims (5)
1. a kind of broadband band-pass filter, which is characterized in that including medium substrate, medium substrate f4b, dielectric constant 2.65,
Loss tangent 0.001, the length of medium substrate are 124.4mm, width 11mm, with a thickness of 0.5mm, among medium substrate two sides
With rectangle copper coating, medium substrate two sides both ends have trapezoidal copper coating and microstrip line, and rectangle copper coating both ends are sequentially connected
Trapezoidal copper coating and microstrip line；Rectangle copper coating with a thickness of 0.018mm, length 86.4mm, width 9mm；Trapezoidal copper applies
The upper bottom length of layer is 1.8mm, and bottom length is 3.5mm, a height of 16mm, with a thickness of 0.018mm；It is covered with Jie of rectangle copper coating
The upside of matter substrate has row's metal throuth hole, constitutes half module substrate integrated wave guide, the diameter of metal throuth hole is 0.5mm, adjacent
The distance of center circle of metal throuth hole is 0.9mm；There are periodic grooves on the downside of rectangle copper coating, constitute the transmission of artificial surface phasmon
Device；Trapezoidal copper coating is microstrip line-half module substrate integrated wave guide transformational structure.
2. a kind of broadband band-pass filter according to claim 1, which is characterized in that further include input port and output end
Mouthful, input port and output port are connected with the microstrip line at the medium substrate both ends respectively.
3. a kind of broadband band-pass filter according to claim 1, which is characterized in that the period phase of the periodic grooves
Together, of same size.
4. a kind of broadband band-pass filter according to claim 3, which is characterized in that the periodic grooves it is all recessed
The opening of slot is concordant, and the depth of the grooves on two sides of the periodic grooves is successively successively decreased, the central slot of the periodic grooves
Depth it is identical.
5. a kind of according to claim 1, broadband band-pass filter described in 3 or 4, which is characterized in that the periodic grooves
Recess width is 1.8mm, and period 3.6mm, the depth of the middle section groove of the periodic grooves is 3.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372334.1U CN208489337U (en) | 2018-08-23 | 2018-08-23 | A kind of broadband band-pass filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372334.1U CN208489337U (en) | 2018-08-23 | 2018-08-23 | A kind of broadband band-pass filter |
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| Publication Number | Publication Date |
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| CN208489337U true CN208489337U (en) | 2019-02-12 |
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| CN201821372334.1U Active CN208489337U (en) | 2018-08-23 | 2018-08-23 | A kind of broadband band-pass filter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149031A (en) * | 2018-08-23 | 2019-01-04 | 江苏师范大学 | Bandpass filter based on half module substrate integrated wave guide and artificial surface phasmon |
| CN109860963A (en) * | 2019-04-01 | 2019-06-07 | 哈尔滨工业大学 | Phase shifter is filtered based on the liquid crystal of pectination microstrip line and hairpin resonator array |
| CN110364793A (en) * | 2019-06-13 | 2019-10-22 | 中国人民解放军国防科技大学 | Hybrid SIW and SLSP structure broadband cavity filter |
| CN110400995A (en) * | 2019-07-26 | 2019-11-01 | 南京邮电大学 | Minimize the three mould bandpass filter of HMSIW single-chamber of Wide stop bands |
| CN112886168A (en) * | 2021-01-11 | 2021-06-01 | 中国人民解放军国防科技大学 | Mode division multiplexing transmission line based on substrate integrated waveguide and artificial surface plasmon |
| CN112909456A (en) * | 2019-12-04 | 2021-06-04 | 成都众志天成科技有限公司 | Substrate integrated waveguide filter based on artificial surface plasmon |
-
2018
- 2018-08-23 CN CN201821372334.1U patent/CN208489337U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149031A (en) * | 2018-08-23 | 2019-01-04 | 江苏师范大学 | Bandpass filter based on half module substrate integrated wave guide and artificial surface phasmon |
| CN109860963A (en) * | 2019-04-01 | 2019-06-07 | 哈尔滨工业大学 | Phase shifter is filtered based on the liquid crystal of pectination microstrip line and hairpin resonator array |
| CN110364793A (en) * | 2019-06-13 | 2019-10-22 | 中国人民解放军国防科技大学 | Hybrid SIW and SLSP structure broadband cavity filter |
| CN110400995A (en) * | 2019-07-26 | 2019-11-01 | 南京邮电大学 | Minimize the three mould bandpass filter of HMSIW single-chamber of Wide stop bands |
| CN110400995B (en) * | 2019-07-26 | 2021-01-26 | 南京邮电大学 | Small-sized wide-stop-band HMSIW single-cavity three-mode band-pass filter |
| CN112909456A (en) * | 2019-12-04 | 2021-06-04 | 成都众志天成科技有限公司 | Substrate integrated waveguide filter based on artificial surface plasmon |
| CN112909456B (en) * | 2019-12-04 | 2024-05-17 | 成都众志天成科技有限公司 | Substrate integrated waveguide filter based on artificial surface plasmon |
| CN112886168A (en) * | 2021-01-11 | 2021-06-01 | 中国人民解放军国防科技大学 | Mode division multiplexing transmission line based on substrate integrated waveguide and artificial surface plasmon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu fuyu'an Security Technology Co.,Ltd. Assignor: Jiangsu Normal University Contract record no.: X2020980009598 Denomination of utility model: A broadband bandpass filter Granted publication date: 20190212 License type: Common License Record date: 20201218 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu fuyu'an Security Technology Co.,Ltd. Assignor: Jiangsu Normal University Contract record no.: X2020980009598 Date of cancellation: 20220525 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Xingyuan Intelligent Equipment Research Institute Co.,Ltd. Assignor: Jiangsu Normal University Contract record no.: X2023980047168 Denomination of utility model: A broadband bandpass filter Granted publication date: 20190212 License type: Common License Record date: 20231116 |