CN110233317A - Microwave band-pass filter and communication equipment - Google Patents
Microwave band-pass filter and communication equipment Download PDFInfo
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- CN110233317A CN110233317A CN201910598031.4A CN201910598031A CN110233317A CN 110233317 A CN110233317 A CN 110233317A CN 201910598031 A CN201910598031 A CN 201910598031A CN 110233317 A CN110233317 A CN 110233317A
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- medium plate
- dielectric
- pass filter
- slab
- microwave band
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- 238000004891 communication Methods 0.000 title claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000003780 insertion Methods 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 2
- 239000012153 distilled water Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/2039—Galvanic coupling between Input/Output
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of microwave band-pass filter and communication equipments, the filter includes the first medium plate, second medium plate and third dielectric-slab set gradually from top to bottom, the back side of the first medium plate is covered with the first metal layer, the front of the third dielectric-slab is covered with second metal layer, the back side of the first medium plate is connected by more metal columns with the front of third dielectric-slab, and more metal columns pass through second medium plate；The front of the second medium plate is equipped with the first input/output end port, the second input/output end port and three mould resonators, and polyfluortetraethylene pipe is inserted into the gap between three mould resonators and the back side of first medium plate.There are three transmission pole and two transmission zeros for present invention tool, improve the channel selectivity and Out-of-band rejection degree of filter, it has the advantages that design is simple, performance is good, it is especially able to maintain very low insertion loss during frequency tuning, can be good at the requirement for meeting Modern Communication System.
Description
Technical field
The present invention relates to a kind of filter, especially a kind of microwave band-pass filter and communication equipment belong to the communication technology
Field.
Background technique
Microwave filter is the essential device of transmitting terminal and receiving end in Modern Communication System, it plays separation to signal
Effect, allows useful signal is as zero-decrement as possible to pass through, the decaying as big as possible to useless signal inhibits it to pass through.With
The development of wireless communication technique and the increase of frequency range need largely to cover using the microwave band-pass filter of fixed frequency
Wider frequency range.In order to reduce fixed frequency microwave band-pass filter quantity and radio-frequency front-end size, adjustable band
Bandpass filter is a selection well.
Variable band-pass filter is broadly divided into mechanical tuning, magnetic tuning and electric tuning.Varactor, PIN diode and
MEMS tuned filter belongs to electric tuning, such tunable filter size is smaller, and tuned speed is very fast and tuning is convenient, so
Using relatively wider.Nineteen eighty-two I.C.Hunter and John David Rhodes just describes a kind of comb for loading varactor
Shape line electrically tunable filter.It is proposed that absolute bandwidth is constant when its electrical length is 52.884 degree simultaneously, this is adjustable for subsequent pectinate line
The application of filter provides guidance foundation.2010, Wu Guochun was based on microstrip split-ring structure and devises a harmonics restraint
Electrically tunable filter.Chinese scholar professor Zhang Xiuyin in 2010 proposes a kind of constant absolute band based on hybrid electromagnetic coupled structure
Wide design method.Since coupling regime is located at the middle part of quarter-wave resonance device, be electrically coupled it is suitable with magnetic-coupled intensity,
Therefore electromagnetism hybrid coupled is coupled as between chamber.It, can be in entire frequency tuning range after having chosen appropriate coupling regime
Realize constant absolute bandwidth, the frequency tuning range tested be 0.68-1.00GHz, 1-dB absolute bandwidth be 80 ±
3.5MHz。
Summary of the invention
In view of this, there are three transmission for filter tool the purpose of the present invention is to provide a kind of microwave band-pass filter
Pole and two transmission zeros improve the channel selectivity and Out-of-band rejection degree of filter, and with designing, simple, performance is good
The advantages of, it is especially able to maintain very low insertion loss during frequency tuning, can be good at meeting modern communications system
The requirement of system.
Another object of the present invention is to provide a kind of communication equipments.
The purpose of the present invention can be reached by adopting the following technical scheme that:
A kind of microwave band-pass filter, including the first medium plate, second medium plate and third set gradually from top to bottom
Dielectric-slab, the back side of the first medium plate are covered with the first metal layer, and the front of the third dielectric-slab is covered with the second gold medal
Belong to layer, the back side of the first medium plate is connected by more metal columns with the front of third dielectric-slab, and more metal columns are worn
Cross second medium plate；
The front of the second medium plate is equipped with the first input/output end port, the second input/output end port and three mould resonance
Device, and polyfluortetraethylene pipe is inserted into the gap between three mould resonators and the back side of first medium plate.
Further, the three moulds resonator includes half-wavelength open-circuit resonant device, the half-wavelength open-circuit resonant device load
There are two minor matters of opening a way, described two open circuit minor matters are connected with the first input/output end port, the second input/output end port respectively.
Further, four are inserted between the gap between the half-wavelength open-circuit resonant device and the back side of first medium plate
Polyfluortetraethylene pipe, it is each open circuit minor matters and the back side of first medium plate between gap between be inserted into a polytetrafluoroethylene (PTFE)
Pipe.
Further, described two open circuit minor matters be in mirror symmetry, and load half-wavelength open-circuit resonant device it is opposite two
Side.
Further, the half-wavelength open-circuit resonant device is rectangular configuration, and each open circuit minor matters are bent structure.
Further, the bent structure includes connected horizontal segment and vertical section.
Further, multiple through-holes are provided on the second medium plate, the through-hole and metal column correspond, Mei Getong
Hole can be such that corresponding metal column passes through.
Further, the surrounding of first medium back is arranged in one end of the more metal columns, and other end setting exists
The positive surrounding of third dielectric-slab.
Further, first input/output end port and the second input/output end port be respectively welded one SMA into
Row feed, SMA of the outer conductor are separately connected the first metal layer and second metal layer.
Another object of the present invention can be reached by adopting the following technical scheme that:
A kind of communication equipment, including above-mentioned microwave band-pass filter.
The present invention have compared with the existing technology it is following the utility model has the advantages that
1, filter of the invention has the three blocks of dielectric-slabs set gradually from top to bottom, wherein the back side of upper dielectric-slab is logical
Excessive root metal column is connected with the front of lower dielectric-slab, and metal column passes through intermediate medium plate, so that intermediate medium plate is hanging, metal
The use of column reduces the radiation loss of filter, and the front of intermediate medium plate is equipped with three mould resonators, and three mould resonators
Polyfluortetraethylene pipe can be inserted in gap between the back side of upper dielectric-slab, due to being placed on the microstrip line of intermediate medium plate
The amount of square distilled water is different, and keeps the effective dielectric constant of top different, so controlling three modes using the amount of distilled water
Variation, to achieve the effect that frequency tuning, and since the loss of polyfluortetraethylene pipe and distilled water is smaller, with realization
The filter of said function is compared, and has the advantages that lower insertion loss, is efficiently solved electricity and is adjusted microwave filter insertion damage
Consume big problem.
2, there are three transmission poles for filter of the invention tool, improve the Out-of-band rejection degree of filter, and the filtering
The passband two sides of device improve the channel selectivity of filter there are two transmission zeros.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the microwave band-pass filter of the embodiment of the present invention 1.
Fig. 2 is the positive structure diagram of the microwave band-pass filter of the embodiment of the present invention 1.
Fig. 3 is the side structure schematic view of the microwave band-pass filter of the embodiment of the present invention 1.
Fig. 4 is the front schematic view of first medium plate in the microwave band-pass filter of the embodiment of the present invention 1.
Fig. 5 is the schematic rear view of first medium plate in the microwave band-pass filter of the embodiment of the present invention 1.
Fig. 6 is the front schematic view of third dielectric-slab in the microwave band-pass filter of the embodiment of the present invention 1.
Fig. 7 is the schematic rear view of third dielectric-slab in the microwave band-pass filter of the embodiment of the present invention 1.
Fig. 8 is the front schematic view of second medium plate in the microwave band-pass filter of the embodiment of the present invention 1.
Fig. 9 is the schematic rear view of second medium plate in the microwave band-pass filter of the embodiment of the present invention 1.
Figure 10 is the Electromagnetic Simulation result curve figure of the microwave band-pass filter of the embodiment of the present invention 1.
Wherein, 1- first medium plate, 2- second medium plate, 3- third dielectric-slab, 4- the first metal layer, the second metal of 5-
Layer, 6- metal column, the first input/output end port of 7-, the second input/output end port of 8-, tri- mould resonator of 9-, 901- half-wavelength are opened
Road resonator, the open circuit minor matters of 902- first, the open circuit minor matters of 903- second, 10- polyfluortetraethylene pipe, 11- through-hole.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment 1:
As shown in FIG. 1 to 3, a kind of microwave band-pass filter is present embodiments provided, which includes from top to bottom
First medium plate 1, second medium plate 2 and the third dielectric-slab 3 set gradually.
As shown in FIG. 1 to FIG. 7, first medium plate 1 and third dielectric-slab 3 are lamina, and the back side of first medium plate 1 is covered
It is stamped the first metal layer 4, the front of third dielectric-slab 3 is covered with second metal layer 5, and the back side of first medium plate 1 passes through 12
Root metal column 6 is connected with the front of third dielectric-slab 3, and 12 metal columns 6 pass through second medium plate 2, so that second medium
Plate 2 is hanging.
Further, the surrounding at 1 back side of first medium plate is arranged in one end of 12 metal columns 6, and other end setting exists
The positive surrounding of third dielectric-slab 3；Wherein, one end of four metal columns 6 is arranged at four angles at 1 back side of first medium plate,
The other end is arranged at 3 positive four angles of third dielectric-slab；One end of two metal columns 6 is arranged at 1 back side of first medium plate
Upper edge, and be located at 1 back side of first medium plate the upper left corner and the upper right corner between, the other end be arranged in third dielectric-slab 3
Positive upper edge, and between the positive upper left corner of third dielectric-slab 3 and the upper right corner；One end of two metal columns 6 is set
It sets at the lower edge at 1 back side of first medium plate, and is located between the lower left corner and the lower right corner at 1 back side of first medium plate, it is another
End is arranged at the positive lower edge of third dielectric-slab 3, and between the positive lower left corner of third dielectric-slab 3 and the lower right corner；
One end of two metal columns 6 is arranged at the left edge at 1 back side of first medium plate, and is located at the upper left at 1 back side of first medium plate
Between angle and the lower left corner, the other end is arranged at the positive left edge of third dielectric-slab 3, and it is positive to be located at third dielectric-slab 3
Between the upper left corner and the lower left corner；One end of two metal columns 6 is arranged in the right edge at 1 back side of first medium plate, and is located at the
Between the upper right corner and the lower right corner at one dielectric-slab, 1 back side, the other end is arranged in the positive right edge of third dielectric-slab 3, and position
Between the positive upper right corner of third dielectric-slab 3 and the lower right corner；The position of 12 metal columns 6 is arranged in a manner described, can be with
Keep the connection between first medium plate 1 and third dielectric-slab 3 more firm, and the use of metal column 6, reduces the spoke of filter
Penetrate loss.
It will be understood by those skilled in the art that the position setting of 12 metal columns 6 can be with are as follows: four metal columns 6
One end is arranged at four angles at 1 back side of first medium plate, and the other end is arranged at 3 positive four angles of third dielectric-slab；One
The upper edge at 1 back side of first medium plate is arranged in one end of root metal column 6, and is located at the upper left corner at 1 back side of first medium plate
Between the upper right corner, the other end is arranged in the positive upper edge of third dielectric-slab 3, and is located at the positive left side of third dielectric-slab 3
Between upper angle and the upper right corner；One end of a piece metal column 6 is arranged at the lower edge at 1 back side of first medium plate, and is located at first
Between the lower left corner and the lower right corner at 1 back side of dielectric-slab, the other end is arranged at the positive lower edge of third dielectric-slab 3, and is located at
Between the positive lower left corner of third dielectric-slab 3 and the lower right corner；1 back side of first medium plate is arranged in one end of three metal columns 6
At left edge, and be located at 1 back side of first medium plate the upper left corner and the lower left corner between, the other end setting third dielectric-slab 3 just
At the left edge in face, and between the positive upper left corner of third dielectric-slab 3 and the lower left corner；One end setting of three metal columns 6
Right edge at 1 back side of first medium plate, and be located between the upper right corner and the lower right corner at 1 back side of first medium plate, the other end
It is arranged in the positive right edge of third dielectric-slab 3, and between the positive upper right corner of third dielectric-slab 3 and the lower right corner.
As shown in FIG. 1 to FIG. 3, Fig. 8~Fig. 9, the front of second medium plate 2 is equipped with the first input/output end port 7, second
Input/output end port 8 and three mould resonators 9, and the gap insertion between three mould resonators 9 and the back side of first medium plate 1 is poly-
Tetrafluoroethene pipe 10, the first input/output end port 7, the second input/output end port 8 and three mould resonators 9 are all made of microstrip line,
Polyfluortetraethylene pipe 10 is for being packed into distilled water.
Further, three mould resonators 9 include half-wavelength open-circuit resonant device 901, the half-wavelength open-circuit resonant device 901 load
There are the first open circuit minor matters 902 and the second open circuit minor matters 903, the first open circuit minor matters 902 and the second open circuit minor matters 903 are in mirror image pair
Claim, and load in the left and right sides of half-wavelength open-circuit resonant device 901, due to half-wavelength open-circuit resonant device 901 wider width and
Length is longer, therefore four poly- four are inserted between the gap between half-wavelength open-circuit resonant device 901 and the back side of first medium plate 1
The narrower width and length of fluoride tubes 10, the first open circuit minor matters 902 and the second open circuit minor matters 903 are shorter, therefore the first open circuit
A polyfluortetraethylene pipe 10, the second open circuit minor matters are inserted between gap between minor matters 902 and the back side of first medium plate 1
A polyfluortetraethylene pipe 10, every polyfluortetraethylene pipe are also inserted between gap between 903 and the back side of first medium plate 1
10 may be incorporated within distilled water, since the amount for being placed on distilled water above the microstrip line of second medium plate 2 is different, and make top
Effective dielectric constant is different, so the variation of three modes is controlled using the amount of distilled water, to reach the effect of frequency tuning
Fruit, and since the loss of polyfluortetraethylene pipe 10 and distilled water is smaller, so filter has the advantages that insertion loss is small；
First input/output end port 7 and the second input/output end port 8 are respectively welded one SMA and are fed, SMA outer conductors
It is separately connected the first metal layer 4 and second metal layer 5.
Preferably, half-wavelength open-circuit resonant device 901 is rectangular configuration, the upside and second of half-wavelength open-circuit resonant device 901
The positive upper edge of dielectric-slab 2 is closer, and the downside of half-wavelength open-circuit resonant device 901 and second medium plate 2 are positive
Being closer at lower edge, the first open circuit minor matters 902 and the second open circuit minor matters 903 are bent structure, bent structure
Including connected horizontal segment and vertical section, wherein vertical section extends to the positive upper edge of second medium plate 2.
In order to make 12 metal columns 6 pass through second medium plate 2,12 through-holes 11, through-hole are provided on second medium plate 2
11 correspond with metal column 6, and each through-hole 11 can be such that corresponding metal column 6 passes through.
The first metal layer 4, second metal layer 5, metal column 6, the first input/output end port 7, second in the present embodiment is defeated
Enter/output port 8 and three mould resonators 9 can be any one of aluminium, iron, tin, copper, silver, gold and platinum, or can for aluminium, iron,
Any one alloy of tin, copper, silver, gold and platinum, it is preferred to use copper product.
The Electromagnetic Simulation result curve figure of the microwave band-pass filter of the present embodiment is as shown in Figure 10, in figure | S21| indicate the
The positive transmission coefficient of one the 7 to the second input/output end port of input/output end port 8, it can be seen that there are three pass for filter tool
Defeated pole improves the Out-of-band rejection degree of the filter, and there are two transmission zeros for the passband two sides of the filter, improve
The channel selectivity of the filter.
Embodiment 2:
A kind of communication equipment is present embodiments provided, which can be mobile phone, tablet computer etc. comprising above-mentioned implementation
The microwave band-pass filter of example 1.
In conclusion filter of the invention has the three blocks of dielectric-slabs set gradually from top to bottom, wherein upper dielectric-slab
The back side be connected with the front of lower dielectric-slab by more metal columns, metal column is across intermediate medium plate, so that intermediate medium plate
Vacantly, the use of metal column reduces the radiation loss of filter, and the front of intermediate medium plate is equipped with three mould resonators, and three
Polyfluortetraethylene pipe can be inserted in gap between mould resonator and the back side of upper dielectric-slab, due to being placed on intermediate medium plate
The amount of distilled water is different above microstrip line, and keeps the effective dielectric constant of top different, so being controlled using the amount of distilled water
The variation of three modes, to achieve the effect that frequency tuning, and since the loss of polyfluortetraethylene pipe and distilled water is compared
It is small, compared with the filter for realizing said function, have the advantages that lower insertion loss, efficiently solves electricity and adjust microwave filtering
The big problem of device insertion loss.
The above, only the invention patent preferred embodiment, but the scope of protection of the patent of the present invention is not limited to
This, anyone skilled in the art is in the range disclosed in the invention patent, according to the present invention the skill of patent
Art scheme and its inventive concept are subject to equivalent substitution or change, belong to the scope of protection of the patent of the present invention.
Claims (10)
1. a kind of microwave band-pass filter, it is characterised in that: including first medium plate, the second medium set gradually from top to bottom
Plate and third dielectric-slab, the back side of the first medium plate are covered with the first metal layer, the front covering of the third dielectric-slab
There is second metal layer, the back side of the first medium plate is connected by more metal columns with the front of third dielectric-slab, and more
Metal column passes through second medium plate；
The front of the second medium plate is equipped with the first input/output end port, the second input/output end port and three mould resonators,
And polyfluortetraethylene pipe is inserted into three gaps between mould resonator and the back side of first medium plate.
2. microwave band-pass filter according to claim 1, it is characterised in that: the three moulds resonator includes that half-wavelength is opened
Road resonator, there are two minor matters of opening a way, described two open circuit minor matters are defeated with first respectively for the half-wavelength open-circuit resonant device load
Enter/output port, the second input/output end port be connected.
3. microwave band-pass filter according to claim 2, it is characterised in that: the half-wavelength open-circuit resonant device and first
Four polyfluortetraethylene pipes, the back side of each open circuit minor matters and first medium plate are inserted between gap between the back side of dielectric-slab
Between gap between be inserted into a polyfluortetraethylene pipe.
4. microwave band-pass filter according to claim 2, it is characterised in that: described two open circuit minor matters are in mirror image pair
Claim, and loads the two sides opposite in half-wavelength open-circuit resonant device.
5. microwave band-pass filter according to claim 2, it is characterised in that: the half-wavelength open-circuit resonant device is rectangle
Structure, each open circuit minor matters are bent structure.
6. microwave band-pass filter according to claim 5, it is characterised in that: the bent structure includes connected water
Flat section and vertical section.
7. microwave band-pass filter according to claim 1-6, it is characterised in that: opened on the second medium plate
There are multiple through-holes, the through-hole and metal column correspond, and each through-hole can be such that corresponding metal column passes through.
8. microwave band-pass filter according to claim 1-6, it is characterised in that: the one of the more metal columns
The surrounding of first medium back is arranged in end, and the other end is arranged in the positive surrounding of third dielectric-slab.
9. microwave band-pass filter according to claim 1-6, it is characterised in that: first input/output
Port and the second input/output end port are respectively welded one SMA and are fed, and SMA of the outer conductor is separately connected
One metal layer and second metal layer.
10. a kind of communication equipment, it is characterised in that: including the described in any item microwave band-pass filters of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598031.4A CN110233317B (en) | 2019-07-04 | 2019-07-04 | Microwave band-pass filter and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598031.4A CN110233317B (en) | 2019-07-04 | 2019-07-04 | Microwave band-pass filter and communication equipment |
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| Publication Number | Publication Date |
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| CN110233317A true CN110233317A (en) | 2019-09-13 |
| CN110233317B CN110233317B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114843724A (en) * | 2021-02-02 | 2022-08-02 | 中国科学院上海微***与信息技术研究所 | Photonic crystal double-band-pass filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392629A (en) * | 2001-06-20 | 2003-01-22 | 株式会社村田制作所 | Dielectric filter, dielectric duplexer and communication device |
| CN106450610A (en) * | 2016-11-10 | 2017-02-22 | 电子科技大学 | A novel dual-passband filter |
| CN107134613A (en) * | 2017-04-25 | 2017-09-05 | 西安电子科技大学 | Three band band-pass filters of resonator are loaded based on open circuit minor matters |
| CN209929455U (en) * | 2019-07-04 | 2020-01-10 | 华南理工大学 | Microwave band-pass filter and communication equipment |
-
2019
- 2019-07-04 CN CN201910598031.4A patent/CN110233317B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392629A (en) * | 2001-06-20 | 2003-01-22 | 株式会社村田制作所 | Dielectric filter, dielectric duplexer and communication device |
| CN106450610A (en) * | 2016-11-10 | 2017-02-22 | 电子科技大学 | A novel dual-passband filter |
| CN107134613A (en) * | 2017-04-25 | 2017-09-05 | 西安电子科技大学 | Three band band-pass filters of resonator are loaded based on open circuit minor matters |
| CN209929455U (en) * | 2019-07-04 | 2020-01-10 | 华南理工大学 | Microwave band-pass filter and communication equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114843724A (en) * | 2021-02-02 | 2022-08-02 | 中国科学院上海微***与信息技术研究所 | Photonic crystal double-band-pass filter |
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| CN110233317B (en) | 2024-03-29 |
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