CN106602189A - Annular metal resonant cavity waveguide filter - Google Patents
Annular metal resonant cavity waveguide filter Download PDFInfo
- Publication number
- CN106602189A CN106602189A CN201710032285.0A CN201710032285A CN106602189A CN 106602189 A CN106602189 A CN 106602189A CN 201710032285 A CN201710032285 A CN 201710032285A CN 106602189 A CN106602189 A CN 106602189A
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- screwed hole
- waveguide
- metal resonator
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 84
- 239000002184 metal Substances 0.000 title claims abstract description 84
- 230000008878 coupling Effects 0.000 claims abstract description 50
- 238000010168 coupling process Methods 0.000 claims abstract description 50
- 238000005859 coupling reaction Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 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
- 239000010949 copper Substances 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012546 transfer Methods 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
- H01P1/207—Hollow waveguide filters
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention discloses an annular metal resonant cavity waveguide filter. The filter comprises a metal resonant cavity, a first waveguide feed port and a second waveguide feed port, the metal resonant cavity is internally embedded with one or more plate metals, and the plate metals and the metal resonant cavity form the metal resonant cavity; and the left and right walls of the metal resonant cavity are respectively provided with a first feed coupling slit and a second coupling slit, the first feed coupling slit is connected with the first waveguide feed port, and the second feed coupling slit is connected with the second waveguide feed port. The annular metal resonant cavity waveguide filter is high in selectivity, high in Q value and simple in design and processing, is simple in structure and convenient to process and realizes while realizing the good filtering performance.
Description
Technical field
The present invention relates to a kind of Metal cavity wave filter, especially a kind of endless metal resonator cavity waveguide filter, category
In wireless communication field.
Background technology
Microwave filter is transmitting terminal and the requisite device of receiving terminal in Modern Communication System, and it rises to signal and separates
Effect, allows useful signal is as zero-decrement as possible to be passed through, and to useless signal, decay as big as possible suppresses which to pass through.With
The development of wireless communication technology, the frequency band between signal are more and more narrow, and this just proposes higher to the specification and reliability of wave filter
Requirement.Rectangular cavities wave filter has that high frequency selectivity, filter with low insertion loss, power capacity be big, steady performance and have
There is very high using value.Many scholars are studied to the passband that cavity body filter produces multimode, by adjusting resonator
Between coupling changing separation multimode, produce transmission zero, further improve band logical performance.
According to investigations with understanding, disclosed prior art is as follows：
Nineteen ninety, F.Arnd propose the concept of wave filter disresonance mould first.In the exploratory development of follow-up scholar, profit
With the concept of disresonance mould, the multimode and transmission zero to metallic cavity wave filter in transmission characteristic is realized.Existing rank
The main implementation method of the multimode and transmission zero of Duan Zhilie type Metal cavities, be in source motivation model TE10, source
Cavity is coupled by aperture with filter cavity, is changed the position in aperture and the size of Metal cavity, is encouraged humorous
Shake mould TM120, TM210 mould and disresonance mould TM11, as disresonance mould has transmission to act on energy so that energy transfer process
In there is multipath, and realize transmission zero.Meanwhile, the presence of resonant mode causes to transmit have multiple transmission modes in passband.
The content of the invention
The invention aims to solve the defect of above-mentioned prior art, there is provided a kind of endless metal resonance cavity waveguide
Wave filter, the wave filter have the advantages that simple structure, handling ease, performance are good, disclosure satisfy that the requirement of communication system, and should
It is wide with scope.
The purpose of the present invention can be reached by adopting the following technical scheme that：
A kind of endless metal resonator cavity waveguide filter, including Metal cavity, first wave guide feed port and the second ripple
Feed port is led, the Metal cavity embeds one or more metallic plate, and the metallic plate and Metal cavity are formed together
Endless metal resonator cavity, has the first feed coupling gap and the second feedback on the left and right wall of the endless metal resonator cavity
Electric coupling gap, it is described first feed coupling gap be connected with first wave guide feed port, it is described second feed couple gap and
Second waveguide feed port connects.
Used as a kind of preferred version, the first wave guide feed port and second waveguide feed port are rectangular waveguide feed
Port.
Used as a kind of preferred version, the Metal cavity is made up of the first cavity and the second cavity, first cavity
On be provided with multiple first screwed holes, multiple second screwed holes, the position of the plurality of second screwed hole are provided with second cavity
Put corresponding with the position of multiple first screwed holes, coordinated second with the second screwed hole, the first screwed hole by screw successively
Cavity is fixed on the first cavity.
As a kind of preferred version, groove on first cavity, is also provided with, on every piece of metallic plate, is provided with two the 3rd spiral shells
Pit, on every piece of metallic plate, the position of two the 3rd screwed holes is relative with the position of the first screwed hole of two of which on the first cavity
Should, on first cavity, the first screwed hole corresponding with the 3rd screwed hole of metallic plate is opened on groove, by screw successively
Coordinate in every piece of metallic plate embedded groove with the second screwed hole, the 3rd screwed hole, the first screwed hole.
Used as a kind of preferred version, first cavity is also provided with four the 4th screw threads near the first feed coupling gap
Hole, four edges of the first wave guide feed port have the 5th screwed hole, the position of four the 5th screwed holes with
The position of four the 4th screwed holes is corresponding, is coordinated first wave guide with the 5th screwed hole, the 4th screwed hole by screw successively
Feed port is fixed on the first cavity；
Second cavity is also provided with four the 6th screwed holes, the second waveguide feedback near the second feed coupling gap
Four edges of electric port have the 7th screwed hole, the position of four the 7th screwed holes and the position of four the 6th screwed holes
Put corresponding, coordinated with the 7th screwed hole, the 6th screwed hole by screw successively and second waveguide feed port is fixed on into second
On cavity.
Used as a kind of preferred version, the first feed coupling gap is from the left wall lateral surface of endless metal resonator cavity
See, be that two long sides are setting up and down, the rectangular configuration that two minor faces or so are arranged；
The second feed coupling gap, from from the right wall lateral surface of endless metal resonator cavity, is to divide on two long sides
Put, the rectangular configuration that two minor faces or so are arranged；
Used as a kind of preferred version, the first wave guide feed port is symmetrical with second waveguide feed port, and described
It is symmetrical that one feed coupling gap couples gap with the second feed.
Used as a kind of preferred version, the Metal cavity is rectangular metal resonator cavity.
The present invention has following beneficial effect relative to prior art：
1st, in wave filter of the invention, Metal cavity can embed one or more metallic plate, and metallic plate is humorous with metal
The chamber that shakes forms endless metal resonator cavity together, and a feed coupling slot is had on the left and right wall of endless metal resonator cavity
Gap, each feed coupling gap connect a waveguide feed port, by adjust Metal cavity size, the quantity of metallic plate and
Size, and the position in feed coupling gap, can control the position of the multimode and transmission zero of wave filter, entirely filter utensil
Have the advantages that simple structure, handling ease, performance are good, disclosure satisfy that the requirement of communication system, and applied range.
2nd, wave filter of the invention is in the frequency range of 9.96～10.04GHz, the value of | S11 | all below -10dB,
And have two or more (being determined by the quantity of metallic plate) significantly resonance point, it is seen that it is the multimode wire chamber with transmission zero
Fluid filter, the features such as disclosure satisfy that high selectivity, high q-factor, design and process simple, is realizing the same of good filtering performance
When, its simple structure is easy to processing to realize.
Description of the drawings
Endless metal resonator cavity waveguide filter structural representations of the Fig. 1 for the embodiment of the present invention 1.
Endless metal resonator cavity waveguide filter structure front views of the Fig. 2 for the embodiment of the present invention 1.
Endless metal resonator cavity waveguide filter structure left views of the Fig. 3 for the embodiment of the present invention 1.
Endless metal resonator cavity waveguide filter structure top views of the Fig. 4 for the embodiment of the present invention 1.
Electromagnetic Simulation curve charts of the Fig. 5 for the endless metal resonator cavity waveguide filter frequency response of the embodiment of the present invention 1.
Machining sketch charts of the Fig. 6 for the endless metal resonator cavity waveguide filter of the embodiment of the present invention 1.
Wherein, 1- Metal cavities, 2- first wave guide feed ports, 3- second waveguide feed ports, 4- metallic plates, 5-
One feed coupling gap, the feed couplings of 6- second gap, the first cavitys of 7-, the second cavitys of 8-, the first screwed holes of 9-, 10- second
Screwed hole, 11- grooves, the 3rd screwed holes of 12-, the 5th screwed holes of 13-, the 6th screwed holes of 14-, the 7th screwed holes of 15-.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited
In this.
Embodiment 1：
As shown in Figure 1 to 4, the endless metal resonator cavity waveguide filter of the present embodiment includes Metal cavity 1, first
Waveguide feed port 2 and second waveguide feed port 3.
The Metal cavity 1 is rectangular metal resonator cavity, and which embeds one piece of metallic plate 4, and the metallic plate 4 and metal are humorous
The chamber 1 that shakes forms endless metal resonator cavity together；The coupling of the first feed is had on the left and right wall of the endless metal resonator cavity
Gap 5 and the second feed coupling gap 6, the first feed coupling gap 5 are connected with first wave guide feed port 2, and described the
Two feed coupling gaps 6 are connected with second waveguide feed port 3, by the size of regulation Metal cavity 1, the chi of metallic plate 4
The position in very little and feed coupling gap (the first feed coupling gap 5 and the second feed coupling gap 6), can control wave filter
Multimode and transmission zero position.
In the present embodiment, the first wave guide feed port 2 and second waveguide feed port 3 are rectangular waveguide feed end
Mouthful；The first feed coupling gap 5 from from the left wall lateral surface of endless metal resonator cavity, be two long sides it is setting up and down,
The rectangular configuration that two minor faces or so are arranged；The second feed coupling right wall lateral surface of the gap 6 from endless metal resonator cavity
On see, be that two long sides are setting up and down, the rectangular configuration that two minor faces or so are arranged；The first wave guide feed port 2 and
Two waveguide feed ports 3 are symmetrical, and it is symmetrical that the first feed coupling gap 5 couples gap 6 with the second feed.
The endless metal resonator cavity waveguide filter operation principle of the present embodiment is：Energy is from first wave guide feed port 2
Input, couples gap 5 by the first feed and transmits energy to endless metal intra resonant cavity, and endless metal intra resonant cavity is led to
Cross the second feed coupling gap 6 and give the energy to second waveguide feed port 3, it is energy is defeated by second waveguide feed port 3
Go out.
The Electromagnetic Simulation curve of the endless metal resonator cavity waveguide filter frequency response of the present embodiment is as shown in figure 5, figure
Middle solid line represents | S11 |, is the return loss of input port (first wave guide feed port)；Dotted line represents | S21 |, is input
Positive transmission coefficient of the mouth (first wave guide feed port) to output port (second waveguide feed port), it can be seen that 9.96
In the frequency range of～10.04GHz, the value of | S11 | all below -10dB, and have two obvious resonance points (i.e. metallic plate and
Two feed coupling gaps, constitute dual-mode resonator).
As shown in fig. 6, the endless metal resonator cavity waveguide filter course of processing of the present embodiment is as follows：
1) a rectangular metal resonator cavity is cut and is divided into the first cavity 7 and the second cavity 8, whole endless metal resonator cavity
Waveguide filter is by the first cavity 7, the second cavity 8, metallic plate 4, first wave guide feed port 2 and second waveguide feed port 3
Composition；
2) four the first screwed holes 9 are outputed on the first cavity 7, four the second screwed holes 10 are outputed on the second cavity 8,
The position of four the first screwed holes 9 is corresponding with the position of four the second screwed holes 10；
3) groove 11 is outputed on the first cavity 7, the groove 11 is for fixed metal plate 4, the first spiral shell of two of which
Pit 9 is opened on groove 11, and two the 3rd screwed holes 12, the position of two the 3rd screwed holes 12 and groove are provided with metallic plate 4
On 11, the position of two the first screwed holes 9 is corresponding；
4) the first feed coupling gap 5 is outputed on the wall of the first cavity 7, output near the first feed coupling gap 5
Four the 4th screwed hole (not shown)s, output the 5th screwed hole respectively in four edges of first wave guide feed port 2
13, the position of four the 5th screwed holes 13 is corresponding with the position of four the 4th screwed holes；Is outputed on the wall of the second cavity 8
Two feed coupling gaps 6, output four the 6th screwed holes 14, near the second feed coupling gap 6 in second waveguide feed end
Four edges of mouth 3 output the 7th screwed hole 15, the position of four the 7th screwed holes 15 and four the 6th screwed holes 14 respectively
Position it is corresponding；
5) coordinated with the 5th screwed hole 13, the 4th screwed hole by screw successively and first wave guide feed port 2 is fixed on
On first cavity 7, and coordinated second waveguide feed port with the 7th screwed hole 15, the 6th screwed hole 14 by screw successively
3 are fixed on the second cavity 8；
6) coordinated with two the second screwed holes, 10, two the 3rd screwed holes, 12, two the first screwed holes 9 by screw successively
Metallic plate 4 is embedded in groove 11, and by screw successively two other second screwed hole 10, two other first screwed hole 9
Coordinate, the second cavity 8 is fixed on the first cavity 7, be i.e. the second cavity 8, metallic plate 4 and the first cavity 7 are already fixed to one
Rise, whole endless metal resonator cavity waveguide filter completion of processing is finally tested.
Embodiment 2：
In place of the present embodiment and the difference of embodiment 1 it is：The Metal cavity 1 can embed polylith metallic plate 4, lead to
Overregulate 1 size of Metal cavity, the quantity of metallic plate 4 and size, and feed coupling gap (the first feed coupling gap 5
With the second feed coupling gap position 6), the position of the multimode and transmission zero of wave filter can be controlled.
In above-described embodiment 1 and 2, the metal material that the Metal cavity 1 and metallic plate 4 are adopted can for aluminum, ferrum,
Any one of stannum, copper, silver, gold and platinum, or can be aluminum, ferrum, stannum, copper, silver, the gold and platinum alloy of any one.
In sum, in wave filter of the invention, Metal cavity can embed one or more metallic plate, metallic plate with
Metal cavity forms endless metal resonator cavity together, and a feed is had on the left and right wall of endless metal resonator cavity
Coupling gap, each feed coupling gap connect waveguide feed port, by adjusting Metal cavity size, metallic plate
Quantity and size, and feed coupling gap, can control the position of the multimode and transmission zero of wave filter, entirely filter utensil
Have the advantages that simple structure, handling ease, performance are good, disclosure satisfy that the requirement of communication system, and applied range.
The above, patent preferred embodiment only of the present invention, but the protection domain of patent of the present invention is not limited to
This, any those familiar with the art in the scope disclosed in patent of the present invention, according to the skill of patent of the present invention
Art scheme and its inventive concept equivalent or change in addition, belong to the protection domain of patent of the present invention.
Claims (8)
1. a kind of endless metal resonator cavity waveguide filter, including Metal cavity, it is characterised in that：Also present including first wave guide
Electric port and second waveguide feed port, the Metal cavity embed one or more metallic plate, the metallic plate and metal
Resonator cavity forms endless metal resonator cavity together, and the first feed coupling is had on the left and right wall of the endless metal resonator cavity
Joint close gap and the second feed coupling gap, the first feed coupling gap are connected with first wave guide feed port, and described second
Feed coupling gap is connected with second waveguide feed port.
2. a kind of endless metal resonator cavity waveguide filter according to claim 1, it is characterised in that：The first wave guide
Feed port and second waveguide feed port are rectangular waveguide feed port.
3. a kind of endless metal resonator cavity waveguide filter according to claim 2, it is characterised in that：The metal resonance
Chamber is made up of the first cavity and the second cavity, is provided with multiple first screwed holes, opens on second cavity on first cavity
There are multiple second screwed holes, the position of the plurality of second screwed hole is corresponding with the position of multiple first screwed holes, by spiral shell
Nail is fixed on the second cavity on the first cavity with the second screwed hole, the cooperation of the first screwed hole successively.
4. a kind of endless metal resonator cavity waveguide filter according to claim 3, it is characterised in that：First cavity
On be also provided with groove, two the 3rd screwed holes are provided with every piece of metallic plate, the position of two the 3rd screwed holes on every piece of metallic plate
3rd screwed hole corresponding with the position of the first screwed hole of two of which on the first cavity, on first cavity with metallic plate
Corresponding first screwed hole is opened on groove, is coordinated with the second screwed hole, the 3rd screwed hole, the first screwed hole by screw successively
By in every piece of metallic plate embedded groove.
5. a kind of endless metal resonator cavity waveguide filter according to claim 3, it is characterised in that：
First cavity is also provided with four the 4th screwed holes, the first wave guide feed end near the first feed coupling gap
Four edges of mouth have the 5th screwed hole, the position of four the 5th screwed holes and the position phase of four the 4th screwed holes
Correspondence, is coordinated with the 5th screwed hole, the 4th screwed hole by screw successively and for first wave guide feed port to be fixed on the first cavity
On；
Second cavity is also provided with four the 6th screwed holes, the second waveguide feed end near the second feed coupling gap
Four edges of mouth have the 7th screwed hole, the position of four the 7th screwed holes and the position phase of four the 6th screwed holes
Correspondence, is coordinated with the 7th screwed hole, the 6th screwed hole by screw successively and for second waveguide feed port to be fixed on the second cavity
On.
6. a kind of endless metal resonator cavity waveguide filter according to any one of claim 1-5, it is characterised in that：
The first feed coupling gap from from the left wall lateral surface of endless metal resonator cavity, be two long sides it is setting up and down,
The rectangular configuration that two minor faces or so are arranged；
The second feed coupling gap from from the right wall lateral surface of endless metal resonator cavity, be two long sides it is setting up and down,
The rectangular configuration that two minor faces or so are arranged.
7. a kind of endless metal resonator cavity waveguide filter according to any one of claim 1-5, it is characterised in that：It is described
First wave guide feed port is symmetrical with second waveguide feed port, and the first feed coupling gap feeds coupling slot with second
Gap is symmetrical.
8. a kind of endless metal resonator cavity waveguide filter according to any one of claim 1-5, it is characterised in that：It is described
Metal cavity is rectangular metal resonator cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710032285.0A CN106602189B (en) | 2017-01-16 | 2017-01-16 | Annular metal resonant cavity waveguide filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710032285.0A CN106602189B (en) | 2017-01-16 | 2017-01-16 | Annular metal resonant cavity waveguide filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106602189A true CN106602189A (en) | 2017-04-26 |
| CN106602189B CN106602189B (en) | 2020-04-28 |
Family
ID=58586036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710032285.0A Expired - Fee Related CN106602189B (en) | 2017-01-16 | 2017-01-16 | Annular metal resonant cavity waveguide filter |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112522A (en) * | 2019-05-31 | 2019-08-09 | 河南思维轨道交通技术研究院有限公司 | A kind of high Q dual mode filter of stack based on gap waveguide technology |
| CN110364795A (en) * | 2019-08-05 | 2019-10-22 | 中电科仪器仪表有限公司 | A kind of compact vertical coupling band logical waveguide filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030206082A1 (en) * | 2002-05-06 | 2003-11-06 | Chen Ming Hui | Waveguide filter with reduced harmonics |
| US20060006966A1 (en) * | 2004-07-08 | 2006-01-12 | Qinghua Kang | Electronically tunable ridged waveguide cavity filter and method of manufacture therefore |
| CN102544649A (en) * | 2012-01-04 | 2012-07-04 | 西安电子科技大学 | One-cavity three-mode filter |
| CN103000980A (en) * | 2011-09-16 | 2013-03-27 | 深圳光启高等理工研究院 | Resonant cavity |
| CN105161807A (en) * | 2015-09-21 | 2015-12-16 | 电子科技大学 | Tunable terahertz waveguide filter based on bimorph thermal actuator |
| CN105514543A (en) * | 2015-12-22 | 2016-04-20 | 华南理工大学 | Metal cavity duplexer |
| CN206564314U (en) * | 2017-01-16 | 2017-10-17 | 华南理工大学 | A kind of endless metal resonator waveguide filter |
-
2017
- 2017-01-16 CN CN201710032285.0A patent/CN106602189B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030206082A1 (en) * | 2002-05-06 | 2003-11-06 | Chen Ming Hui | Waveguide filter with reduced harmonics |
| US20060006966A1 (en) * | 2004-07-08 | 2006-01-12 | Qinghua Kang | Electronically tunable ridged waveguide cavity filter and method of manufacture therefore |
| CN103000980A (en) * | 2011-09-16 | 2013-03-27 | 深圳光启高等理工研究院 | Resonant cavity |
| CN102544649A (en) * | 2012-01-04 | 2012-07-04 | 西安电子科技大学 | One-cavity three-mode filter |
| CN105161807A (en) * | 2015-09-21 | 2015-12-16 | 电子科技大学 | Tunable terahertz waveguide filter based on bimorph thermal actuator |
| CN105514543A (en) * | 2015-12-22 | 2016-04-20 | 华南理工大学 | Metal cavity duplexer |
| CN206564314U (en) * | 2017-01-16 | 2017-10-17 | 华南理工大学 | A kind of endless metal resonator waveguide filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110112522A (en) * | 2019-05-31 | 2019-08-09 | 河南思维轨道交通技术研究院有限公司 | A kind of high Q dual mode filter of stack based on gap waveguide technology |
| CN110364795A (en) * | 2019-08-05 | 2019-10-22 | 中电科仪器仪表有限公司 | A kind of compact vertical coupling band logical waveguide filter |
| CN110364795B (en) * | 2019-08-05 | 2021-04-30 | 中电科思仪科技股份有限公司 | Compact vertical coupling band-pass waveguide filter |
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| Publication number | Publication date |
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| CN106602189B (en) | 2020-04-28 |
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Granted publication date: 20200428 |