WO2021208761A1 - 滤波结构和滤波器件 - Google Patents
滤波结构和滤波器件 Download PDFInfo
- Publication number
- WO2021208761A1 WO2021208761A1 PCT/CN2021/085213 CN2021085213W WO2021208761A1 WO 2021208761 A1 WO2021208761 A1 WO 2021208761A1 CN 2021085213 W CN2021085213 W CN 2021085213W WO 2021208761 A1 WO2021208761 A1 WO 2021208761A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resonant
- coupling
- shielding layer
- shielding
- columns
- Prior art date
Links
- 238000010168 coupling process Methods 0.000 claims abstract description 180
- 238000005859 coupling reaction Methods 0.000 claims abstract description 180
- 230000008878 coupling Effects 0.000 claims abstract description 178
- 238000001914 filtration Methods 0.000 claims description 36
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 15
- 230000010354 integration Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 18
- 238000004088 simulation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2053—Comb or interdigital filters; Cascaded coaxial cavities the coaxial cavity resonators being disposed parall to each other
-
- 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
- H01P1/207—Hollow waveguide 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
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
Definitions
- the coupling enhancement component includes at least one set of coupling connectors, and each set of coupling connectors includes two coupling connectors;
- two coupling connectors belonging to the same group are respectively connected to two resonant columns, and the two coupling connectors are alternately arranged at intervals to form a capacitive component, thereby improving the capacitive coupling coefficient between the two resonant columns.
- connection port includes a first port and a second port
- FIG. 1 is a structural block diagram of a filter device provided by an embodiment of the application.
- Fig. 2 is a schematic structural diagram of a filtering structure provided by an embodiment of the application.
- Fig. 3 is a schematic structural diagram of a shielding component provided by an embodiment of the application.
- FIG. 8 is a schematic diagram of the connection relationship between the coupling connector and two non-adjacent resonant columns provided in FIG. 6 according to an embodiment of the application.
- FIG. 12 is a schematic structural diagram of an existing filtering structure.
- FIG. 13 is a schematic structural diagram of a filter structure including a coupling connector for improving the electromagnetic coupling coefficient provided by an embodiment of the application.
- FIG. 15 is a schematic structural diagram of a filter structure including a coupling connector for improving the capacitive coupling coefficient provided by an embodiment of the application.
- FIG. 16 is a schematic diagram of simulation results based on the two filtering structures of FIG. 12 and FIG. 15.
- Icon 10-filter component; 100-filter structure; 110-shielding component; 111-first shielding layer; 113-second shielding layer; 115-shielding column; 120-resonant component; 121-resonant column; 123-resonant disk 130-Coupling enhancement component; 131-Coupling connector; 200-Connecting port; 210-First port; 230-Second port.
- an embodiment of the present application provides a filter device 10.
- the filter device 10 may include a connection port 200 and a filter structure 100.
- connection port 200 may include a first port 210 and a second port 230, and the filtering structure 100 may be multiple.
- a plurality of filtering structures 100 may be respectively connected between the first port 210 and the second port 230 for filtering the signal to be processed input through the first port 210 and then outputting the signal through the second port 230 (ie, the second port 230).
- One port 210 is used as an input port, and the second port 230 is used as an output port), or the signal to be processed input through the second port 230 is filtered and then output through the first port 210 (that is, the first port 210 is used as an output port, and the second port is used as an output port.
- Port 230 is used as an input port).
- connection ports 200 is not limited. For example, on the basis of including the first port 210 and the second port 230, it may also include a third port, a fourth port, etc., which can be set according to actual application requirements.
- connection relationship between the multiple filtering structures 100 is not limited, and can be selected according to actual application requirements.
- a plurality of filter structures 100 may be connected in series.
- multiple filter structures 100 may also be connected in parallel.
- multiple filter structures 100 may also be connected in a mixed manner (that is, including series connection and parallel connection).
- the specific type of the filter device 10 is not limited, and can be selected according to actual application requirements, for example, it may be a millimeter wave filter.
- an embodiment of the present application also provides a filtering structure 100 that can be applied to the above-mentioned filtering device 10.
- the filtering structure 100 may include a shielding component 110, a resonance component 120 and a coupling enhancement component 130.
- the shielding member 110 may include a first shielding layer 111 and a second shielding layer 113, and the first shielding layer 111 and the second shielding layer 113 are opposed to and spaced apart.
- Each resonant component 120 may include a resonant column 121 and a resonant disk 123 connected to the resonant column 121.
- the resonant column 121 is located between the first shielding layer 111 and the second shielding layer 113 and connected to the first shielding layer 111 .
- the coupling enhancement member 130 may be spaced apart from the first shielding layer 111 and the second shielding layer 113 and respectively connected to the at least two resonant columns 121 to improve the coupling coefficient between the at least two resonant columns 121.
- the arrangement of the coupling enhancement component 130 will not lead to an increase in the volume of the filter structure 100.
- the coupling coefficient between the connected resonant columns 121 can also be increased, thereby making The bandwidth of the passband of the filter structure 100 can be increased, thereby solving the problem of simultaneously achieving integration and effectively broadening the bandwidth of the passband of the device.
- the specific structure of the shielding component 110 (such as the first shielding layer 111 and the second shielding layer 113, and other structures included) is not limited, and can be selected according to actual application requirements.
- the specific structures of the first shielding layer 111 and the second shielding layer 113 are also not limited, and can be selected according to actual application requirements.
- the first shielding layer 111 and the second shielding layer 113 may be a metal layered structure.
- the first shielding layer 111 and the second shielding layer 113 may also be non-metallic shielding structures with electromagnetic shielding effect.
- first shielding layer 111 and the second shielding layer 113 can be either a patterned conductive structure formed on other non-conductive structures (that is, only the patterned conductive structure has an electromagnetic shielding effect), or a layered conductive structure ( That is, all the layered conductive structures have an electromagnetic shielding effect).
- the shielding component 110 may also include other shielding structures.
- the shielding structure composed of the first shielding layer 111, the second shielding layer 113 and other shielding structures can be formed as a cavity, and the resonant component 120 and the coupling enhancement component 130 can be located inside the cavity of the shielding structure, thereby achieving Isolation of external interference signals.
- the specific configuration of other shielding structures used to form the cavity is not limited, and can be selected according to actual application requirements.
- a plurality of shielding pillars 115 may be arranged at intervals between the first shielding layer 111 and the second shielding layer 113 to form a containing space (that is, the aforementioned cavity) for aligning the resonant component 120 located in the containing space. Electromagnetic shielding is performed with the coupling enhancement member 130.
- the shielding component 110 may also include other shielding structures.
- the shielding layer that is, the other shielding layer can be used as the aforementioned other shielding structure.
- the fact that the opposed surfaces of the first shielding layer 111 and the second shielding layer 113 are quadrilaterals is only an exemplary description. In other examples, based on different application requirements, three can also be used. Hexagons, pentagons, hexagons, etc.
- the specific structure of the shielding pillar 115 or other shielding layer as the above-mentioned other shielding structure is not limited, and can be selected according to actual application requirements.
- it may also be a metal shielding layer or a metal shielding column (or a non-metal shielding layer, Non-metallic shielding column).
- the shielding component 110 since there are at least two resonant components 120, in order to make the signal to be processed can be filtered through each resonant component 120 in an orderly manner, in this embodiment, the first shielding layer 111 On the basis of the cavity structure formed by the second shielding layer 113 and other shielding structures, at least two cavity sub-structures can also be formed inside the cavity structure to separately provide each resonant component 120.
- a certain shielding opening may be formed between the above-mentioned cavity substructures, so that the cavity substructures processed by the resonant components 120
- the signal to be processed can be transmitted through the shielding opening to the subsequent cavity structure and processed by the resonant component 120 again.
- the specific forming method of the cavity substructure is not limited, and can be selected according to actual application requirements.
- it can be used as a shielding layer of the above-mentioned other shielding structure.
- the shielding column 115 as the above-mentioned other shielding structure can also be used.
- the corresponding cavity sub-structure needs to be processed, for example, in the cavity sub-structure
- the positional relationship of the cavity shielding pillars 115 can also be set to form a shielding opening, so that the signal to be processed can be transmitted through the shielding opening.
- the positional relationship of the cavity shielding column 115 is not limited, and can be set according to actual application requirements, which is not specifically limited here.
- the containing space formed by the cavity structure can also be filled with dielectric materials.
- the specific type of the above-mentioned dielectric material is not limited, and can be selected according to actual application requirements.
- it may include, but is not limited to, media with a dielectric constant of 3.0, 3.5, or 4.0.
- the specific number of the resonant component 120 is not limited, and can be selected according to actual application requirements, as long as there are at least two.
- there may be two resonance components 120 that is, two resonance columns 121 and two resonance disks 123 are included.
- the number of resonance components 120 may be three, that is, three resonance columns 121 and three resonance disks 123 are included.
- there may be four resonance components 120 that is, four resonance columns 121 and four resonance disks 123 are included.
- the specific structure of the resonant component 120 (such as the connection relationship between the resonant column 121 and the resonant disk 123) is also not limited, and can be selected according to actual application requirements.
- the resonant column 121 and the resonant disk 123 included in the resonant component 120 may be connected by side surfaces.
- the resonance column 121 and the resonance disk 123 may also be connected by an end surface. As long as it can be ensured that the resonant column 121 and the resonant disk 123 can be effectively electrically connected.
- the resonant column 121 can penetrate the resonant disk 123, that is, the resonant column 121 can extend to the side of the resonant disk 123 close to the second shielding layer 113 ( Or across the surface).
- the resonant column 121 may also only extend to the side of the resonant disk 123 away from the second shielding layer 113.
- the relative positional relationship between the resonant column 121 and the resonant disk 123 is also not limited, and can be selected according to actual application requirements.
- the resonant column 121 and the resonant disk 123 are arranged non-vertically, that is, there may be a non-zero included angle between each end surface.
- the resonance column 121 and the resonance disk 123 may also be arranged vertically, that is, the end faces may be parallel to each other.
- the specific structure of the resonant column 121 and the resonant disk 123 is not limited, and can be selected according to actual application requirements.
- the resonant column 121 and the resonant disk 123 may be a non-metallic conductive column and a non-metallic conductive disk, respectively.
- the resonance column 121 and the resonance disk 123 may be a metal column and a metal disk, respectively.
- the specific shape of the non-metallic conductive column or the metal column is not limited, and can also be selected according to actual application requirements.
- it may include, but is not limited to, regular or irregular columnar structures such as non-metallic conductive cylinders, metal cylinders, non-metallic conductive square pillars, or metal square pillars.
- non-metallic conductive disk or the metal disk is not limited.
- it may include, but is not limited to, non-metallic conductive disks, metal disks, non-metal conductive square disks or metal square disks, such as regular or irregular disk shapes. structure.
- the relative positional relationship between the resonant column 121 and the first shielding layer 111 is also not limited, and can be selected according to actual application requirements.
- the resonance column 121 and the first shielding layer 111 can also be arranged vertically, that is, one end of the resonance column 121 is arranged on the first shielding layer 111, and the other end is perpendicular to the first shielding layer 111. It extends in the direction of the first shielding layer 111.
- the resonant column 121 when the resonant column 121 is perpendicular to the resonant disk 123 (that is, the first shielding layer 111 and the resonant disk 123 are arranged in parallel), the resonant column 121 also extends in a direction perpendicular to the resonant disk 123.
- the projections of the resonant column 121 and the resonant disk 123 in the extension direction of the resonant column 121 can either be completely overlapped or partially overlapped based on a certain manufacturing process. The overlap, as long as it can ensure that the resonant column 121 is connected to the resonant disk 123.
- the specific configuration of the coupling enhancement component 130 is not limited, and can be selected according to actual application requirements. For example, based on the actual coupling effect, it can have different configurations.
- the filter structure 100 in order to make the frequency value of the passband of the filter structure 100 larger as a whole, it may be configured to enhance the electromagnetic coupling coefficient between the resonant columns 121 through the coupling enhancement component 130.
- the filter structure 100 in order to make the frequency value of the passband of the filter structure 100 smaller as a whole, it may be configured to enhance the capacitive coupling coefficient between the resonant columns 121 through the coupling enhancement component 130.
- the coupling enhancement component 130 may include at least one coupling connector 131.
- each coupling connector 131 is connected to two resonant poles 121 respectively to improve the electromagnetic coupling coefficient between the two resonant poles 121.
- one coupling connector 131 may be directly electrically connected to the two resonant columns 121 respectively, so that the two resonant columns 121 form an electromagnetic coupling.
- the relative relationship between the two resonance columns 121 connected by each coupling connector 131 is not limited, and can be selected according to actual application requirements, as long as there are two resonance columns 121.
- each coupling connector 131 is respectively connected to two adjacent resonant columns 121 to improve the electromagnetic coupling between the two adjacent resonant columns 121 coefficient.
- the resonant components may include a resonant column 1, a resonant column 2 and a resonant column 3, and the transmission direction of the signal to be processed is sequentially Resonant column 1, resonant column 2, and resonant column 3.
- the resonant column 1 and the resonant column 2 can be electrically connected via the coupling connector 131 (that is, there is no resonant column 121 between the resonant column 1 and the resonant column 2).
- At least one coupling connector 131 is connected to two non-adjacent resonant columns 121, respectively, for improving the phase difference.
- the electromagnetic coupling coefficient between two adjacent resonant columns 121 forms a transmission zero point outside the pass band of the filter structure 100 and close to the upper cut-off frequency.
- the resonant components may include a resonant column 1, a resonant column 2, and a resonant column 3, and the transmission direction of the signal to be processed is sequentially Resonant column 1, resonant column 2, and resonant column 3.
- the resonant column 1 and the resonant column 3 can be electrically connected through the coupling connector 131 (that is, the resonant column 2 is separated from the resonant column 1 and the resonant column 3).
- the specific position of the transmission zero point close to the upper cut-off frequency is not limited, and can be configured accordingly according to actual application requirements.
- the distance between the coupling connector 131 and the first shielding layer 111 (that is, the height of the coupling connector 131) can be increased, And/or, increase the width of the coupling member 131.
- the distance between the coupling connector 131 and the first shielding layer 111 can be reduced , And/or, reduce the width of the coupling member 131.
- the coupling enhancement component 130 may include at least one set of coupling connectors 131, and each set of coupling connectors 131 may include Two coupling connectors 131.
- each group of coupling connectors 131 two coupling connectors 131 belonging to the same group are respectively connected to two resonant columns 121, and the two coupling connectors 131 are alternately arranged at intervals to form a capacitor component, thereby improving the The capacitive coupling coefficient between the two resonant columns 121.
- a capacitive component can be formed by indirect electrical connection of two coupling connectors 131 in the same group, thereby increasing the capacitive coupling coefficient between the two connected resonant columns 121.
- the relative relationship between the two resonance columns 121 connected by each group of coupling connectors 131 is not limited, and can be selected according to actual application requirements.
- the two coupling connectors 131 belonging to the same group are respectively connected to two adjacent resonant columns 121 to increase the distance between the two adjacent resonant columns 121.
- the capacitive coupling coefficient is a constant value that is a constant value that is a constant value that is a constant value that is a constant value that is a constant value that is a constant value that is a constant value that is a constant value that is a constant value that is respectively connected to two adjacent resonant columns 121 to increase the distance between the two adjacent resonant columns 121.
- the capacitive coupling coefficient is the capacitive coupling coefficient.
- the resonant components may include a resonant column 1, a resonant column 2 and a resonant column 3, and the transmission direction of the signal to be processed is sequentially Resonant column 1, resonant column 2, and resonant column 3.
- two coupling connectors 131 in a group of coupling connectors 131 can be electrically connected to the resonant column 1 and the resonant column 2 respectively (that is, the resonant column 1 and the resonant column 2 are not separated by any resonant column 121).
- two coupling connectors 131 of at least one set of coupling connectors 131 are respectively connected to two non-adjacent resonant columns 121, so as to improve the two non-adjacent resonant columns 121
- the capacitive coupling coefficient between the resonant columns 121 forms a transmission zero point outside the passband of the filter structure 100 and close to the lower cutoff frequency.
- the resonant components may include a resonant column 1, a resonant column 2 and a resonant column 3, and the transmission direction of the signal to be processed is sequentially Resonant column 1, resonant column 2, and resonant column 3.
- two coupling connectors 131 in a group of coupling connectors 131 can be electrically connected to the resonant column 1 and the resonant column 3 respectively (that is, the resonant column 1 and the resonant column 3 are separated by the resonant column 2).
- the specific position of the transmission zero point close to the lower limit cut-off frequency is not limited, and can be configured accordingly according to actual application requirements.
- the distance between the two coupling connectors 131 and the first shielding layer 111 can be increased (that is, the distance between the two coupling connections 131 and the first shielding layer 111).
- the height of the element 131 and/or, increase the staggered area of the two coupling connecting elements 131 (that is, the facing area of the formed capacitor element).
- the distance between the two coupling connectors 131 and the first shielding layer 111 can be reduced (that is, the distance between the two coupling connectors 131 and the first shielding layer 111).
- the height of the connecting piece 131 and/or, reduce the intersecting area of the two coupling connecting pieces 131 (that is, the facing area of the formed capacitor component).
- the two coupling connectors 131 belonging to the same group of coupling connectors 131 may be arranged relatively non-parallel, for example, may have a small included angle.
- the two coupling connectors 131 belonging to the same group of coupling connectors 131 can be arranged relatively in parallel, and the staggered part of the two coupling connectors 131 is perpendicular to the two coupling connectors 131.
- the projections of the extension directions of the two coupling connectors 131 coincide.
- the specific structure of the coupling enhancement component 130 is also not limited, and can be selected according to actual application requirements.
- the coupling enhancement member 130 may be a metal structure (for example, the above-mentioned coupling connection member 131 may be a metal connection wire).
- the coupling enhancement component 130 may also be a non-metallic conductive structure.
- the coupling coefficient between the resonant columns 121 can be increased, so that the bandwidth of the passband of the filter structure 100 can be increased.
- the present application is based on the filter structure 100 in the above example, and performs simulation analysis separately from the existing filter structure.
- the filter structure 100 may include two resonant columns 121.
- the filter structure 100 includes two resonant columns 121 and a coupling connector 131. Connect to achieve electromagnetic coupling.
- a simulation result as shown in FIG. 14 can be obtained, where the distance between the two wave crests can represent the bandwidth of the passband of the filtering structure.
- the filter structure 100 provided with the coupling connector 131 has a larger passband bandwidth than the filter structure without the coupling connector 131.
- the filter structure 100 includes two resonant columns 121 and a group of coupling connectors 131, and the two resonant columns 121 are respectively coupled to the group.
- the two coupling connectors 131 in the connector 131 are electrically connected to realize capacitive coupling.
- FIG. 16 By performing simulation analysis on the filtering structure 100 and the aforementioned existing filtering structure, a simulation result as shown in FIG. 16 can be obtained, where the distance between the two wave crests can represent the bandwidth of the passband of the filtering structure.
- the filter structure 100 provided with the coupling connector 131 has a larger passband bandwidth than the filter structure without the coupling connector 131.
- the inventor of the present application found in the process of research that if the coupling enhancement component 130 is grounded, the coupling coefficient between the resonant columns 121 cannot be effectively increased, and the bandwidth of the passband cannot be effectively widened. .
- this application has also performed corresponding simulation analysis, as shown in FIG. 17, respectively showing the comparative example of FIG. 12 and the A simulation schematic diagram of a test example and another test example in which the coupling connector 131 is arranged in contact with the first shielding layer 111 in the test example.
- FIG. 17 shows the comparative example of FIG. 12 and the A simulation schematic diagram of a test example and another test example in which the coupling connector 131 is arranged in contact with the first shielding layer 111 in the test example.
- the filter structure 100 in which the coupling connector 131 is not grounded has a larger bandwidth of the passband.
- the filter structure 100 and the filter device 10 provided in the present application are provided with the shielding component 110 and the resonant component 120, and the coupling enhancement component 130 is provided, so that at least two resonant columns 121 of the resonant component 120 are provided.
- the coupling coefficient between the two is enhanced.
- the arrangement of the coupling enhancement component 130 will not lead to an increase in the volume of the filter structure 100.
- the coupling coefficient between the connected resonant columns 121 can also be increased, thereby making the filter
- the bandwidth of the passband of the structure 100 is increased, thereby solving the problem of simultaneously achieving integration and effectively broadening the bandwidth of the passband of the device. It has high practical value, especially in the application of precision instruments. Effect.
- the coupling enhancement component is provided on the basis of the shielding component and the resonant component, so as to enhance the coupling coefficient between the resonant columns of at least two resonant components.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
Claims (15)
- 一种滤波结构,其特征在于,包括:屏蔽部件,该屏蔽部件包括第一屏蔽层和第二屏蔽层,该第一屏蔽层和该第二屏蔽层相对且间隔设置;谐振部件,该谐振部件至少为两个,各所述谐振部件间隔设置,每个所述谐振部件包括谐振柱和与该谐振柱连接的谐振盘,该谐振柱位于所述第一屏蔽层和所述第二屏蔽层之间,且与该第一屏蔽层连接;耦合增强部件,该耦合增强部件分别与所述第一屏蔽层和所述第二屏蔽层间隔设置,且与至少两个所述谐振柱分别连接,以提高该至少两个谐振柱之间的耦合系数。
- 根据权利要求1所述的滤波结构,其特征在于,所述耦合增强部件包括至少一个耦合连接件;其中,每一个所述耦合连接件与两个谐振柱分别连接,以提高该两个谐振柱之间的电磁耦合系数。
- 根据权利要求2所述的滤波结构,其特征在于,沿待处理信号在各所述谐振部件之间的传播方向,每一个所述耦合连接件与相邻的两个谐振柱分别连接,用于提高相邻的两个谐振柱之间的电磁耦合系数。
- 根据权利要求2所述的滤波结构,其特征在于,沿待处理信号在各所述谐振部件之间的传播方向,在所述至少一个耦合连接件中,至少有一个耦合连接件与不相邻的两个谐振柱分别连接,以提高该不相邻的两个谐振柱之间的电磁耦合系数,且在所述滤波结构的通频带之外、接近上限截止频率的位置形成传输零点。
- 根据权利要求1所述的滤波结构,其特征在于,所述耦合增强部件包括至少一组耦合连接件,每组耦合连接件包括两个耦合连接件;其中,属于同一组的两个耦合连接件分别连接两个谐振柱,且该两个耦合连接件间隔交错设置,以形成电容组件,由此提高该两个谐振柱之间的电容耦合系数。
- 根据权利要求5所述的滤波结构,其特征在于,沿待处理信号在各所述谐振部件之间的传播方向,属于同一组的两个耦合连接件分别连接相邻的两个谐振柱,以提高该相邻的两个谐振柱之间的电容耦合系数。
- 根据权利要求5所述的滤波结构,其特征在于,沿待处理信号在各所述谐振部件之间的传播方向,至少有一组耦合连接件的两个耦合连接件,分别连接不相邻的两个谐振柱,以提高该不相邻的两个谐振柱之间的电容耦合系数,且在所述滤波结构的通频带之外、接近下限截止频率的位置形成传输零点。
- 根据权利要求5所述的滤波结构,其特征在于,属于同一组的两个耦合连接件平行设置,且该两个耦合连接件的交错部分,在垂直于该两个耦合连接件的延伸方向的方向上的投影重合。
- 根据权利要求1-8任意一项所述的滤波结构,其特征在于,所述耦合增强部件为金属结构。
- 根据权利要求1-9任意一项所述的滤波结构,其特征在于,所述第一屏蔽层和所述第二屏蔽层是在其它非导电结构上形成的图形化导电结构。
- 根据权利要求1-10任意一项所述的滤波结构,其特征在于,所述屏蔽部件还包括多个屏蔽柱,多个所述屏蔽柱间隔设置于所述第一屏蔽层和所述第二屏蔽层之间,以围合形成腔体结构,所述谐振部件和所述耦合增强部件位于所述腔体结构的内部。
- 根据权利要求1-10任意一项所述的滤波结构,其特征在于,所述屏蔽部件还包括设置于所述第一屏蔽层和所述第二屏蔽层之间且与第一屏蔽层及第二屏蔽层共同围成封闭的腔体结构的多个其它屏蔽层,所述谐振部件和所述耦合增强部件位于所述腔体结构的内部。
- 根据权利要求11或12任意一项所述的滤波结构,其特征在于,在所述腔体结构的内部形成多个腔体子结构,以分别设置各谐振部件,在所述腔体子结构之间形成有用于使待处理信号在各谐振部件之间进行传输的屏蔽开口。
- 根据权利要求12任意一项所述的滤波结构,其特征在于,所述第一屏蔽层和所述第二屏蔽层相对的表面为四边形,所述其它屏蔽层为4个。
- 一种滤波器件,其特征在于,包括:连接端口,该连接端口包括第一端口和第二端口;权利要求1-14中任意一项所述的滤波结构,该滤波结构为多个,且分别连接于所述第一端口与所述第二端口之间,以对通过所述第一端口输入的待处理信号进行滤波处理之后通过所述第二端口输出,或对通过所述第二端口输入的待处理信号进行滤波处理之后通过所述第一端口输出。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/919,247 US20230187799A1 (en) | 2020-04-17 | 2021-04-02 | Filter structure and filter device |
JP2022563004A JP7481038B2 (ja) | 2020-04-17 | 2021-04-02 | フィルタ構造およびフィルタデバイス |
KR1020227036709A KR102721020B1 (ko) | 2020-04-17 | 2021-04-02 | 필터 구조 및 필터 장치 |
EP21787857.8A EP4117110A4 (en) | 2020-04-17 | 2021-04-02 | FILTER STRUCTURE AND FILTER DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010306011.8 | 2020-04-17 | ||
CN202010306011.8A CN111403868A (zh) | 2020-04-17 | 2020-04-17 | 滤波结构和滤波器件 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021208761A1 true WO2021208761A1 (zh) | 2021-10-21 |
Family
ID=71429674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2021/085213 WO2021208761A1 (zh) | 2020-04-17 | 2021-04-02 | 滤波结构和滤波器件 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230187799A1 (zh) |
EP (1) | EP4117110A4 (zh) |
JP (1) | JP7481038B2 (zh) |
CN (1) | CN111403868A (zh) |
WO (1) | WO2021208761A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111403868A (zh) * | 2020-04-17 | 2020-07-10 | 安徽安努奇科技有限公司 | 滤波结构和滤波器件 |
CN112599942A (zh) * | 2020-11-30 | 2021-04-02 | 湖南迈克森伟电子科技有限公司 | 一种腔体滤波器的可调强感性耦合结构 |
CN117092384B (zh) * | 2023-10-09 | 2024-06-28 | 荣耀终端有限公司 | 屏蔽装置、信息确定方法、电子设备和测试设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107359394A (zh) * | 2017-08-15 | 2017-11-17 | 罗森伯格技术(昆山)有限公司 | 可调电磁混合耦合滤波器 |
US20180131063A1 (en) * | 2016-11-04 | 2018-05-10 | Com Dev International Ltd. | Multi-band bandpass filter |
CN111403868A (zh) * | 2020-04-17 | 2020-07-10 | 安徽安努奇科技有限公司 | 滤波结构和滤波器件 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3516030A (en) * | 1967-09-19 | 1970-06-02 | Joseph S Brumbelow | Dual cavity bandpass filter |
JPS58194405A (ja) * | 1982-05-08 | 1983-11-12 | Murata Mfg Co Ltd | 複合フイルタ |
JP2670963B2 (ja) * | 1993-04-01 | 1997-10-29 | 国際電気株式会社 | コムライン形バンドパスフィルタ |
FI113578B (fi) * | 1999-03-03 | 2004-05-14 | Filtronic Lk Oy | Resonaattorisuodatin |
EP2068393A1 (en) * | 2007-12-07 | 2009-06-10 | Panasonic Corporation | Laminated RF device with vertical resonators |
CN101276952B (zh) * | 2008-04-15 | 2012-08-22 | 华南理工大学 | 可控电磁混合耦合同轴腔滤波器 |
CN103378388A (zh) * | 2012-04-20 | 2013-10-30 | 南京赛格微电子科技有限公司 | 同轴宽带滤波器 |
JP5513545B2 (ja) * | 2012-04-23 | 2014-06-04 | 島田理化工業株式会社 | 帯域通過フィルタ |
CN111682293B (zh) * | 2014-12-15 | 2021-12-31 | 康普公司意大利有限责任公司 | 谐振滤波器 |
KR101756124B1 (ko) * | 2015-11-30 | 2017-07-11 | 주식회사 케이엠더블유 | 크로스 커플링 노치 구조를 구비한 캐비티 타입의 무선 주파수 필터 |
JP6676171B2 (ja) * | 2015-12-24 | 2020-04-08 | 華為技術有限公司Huawei Technologies Co.,Ltd. | フィルタおよびワイヤレスネットワークデバイス |
-
2020
- 2020-04-17 CN CN202010306011.8A patent/CN111403868A/zh active Pending
-
2021
- 2021-04-02 US US17/919,247 patent/US20230187799A1/en active Pending
- 2021-04-02 WO PCT/CN2021/085213 patent/WO2021208761A1/zh active Search and Examination
- 2021-04-02 EP EP21787857.8A patent/EP4117110A4/en active Pending
- 2021-04-02 JP JP2022563004A patent/JP7481038B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180131063A1 (en) * | 2016-11-04 | 2018-05-10 | Com Dev International Ltd. | Multi-band bandpass filter |
CN107359394A (zh) * | 2017-08-15 | 2017-11-17 | 罗森伯格技术(昆山)有限公司 | 可调电磁混合耦合滤波器 |
CN111403868A (zh) * | 2020-04-17 | 2020-07-10 | 安徽安努奇科技有限公司 | 滤波结构和滤波器件 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4117110A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP2023522064A (ja) | 2023-05-26 |
US20230187799A1 (en) | 2023-06-15 |
JP7481038B2 (ja) | 2024-05-10 |
KR20220161554A (ko) | 2022-12-06 |
EP4117110A1 (en) | 2023-01-11 |
CN111403868A (zh) | 2020-07-10 |
EP4117110A4 (en) | 2023-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021208761A1 (zh) | 滤波结构和滤波器件 | |
JP5019033B2 (ja) | コモンモード電流抑制ebgフィルタ | |
US10749234B2 (en) | Band-pass filter | |
WO2021008005A1 (zh) | 一种介质波导滤波器 | |
US20190198959A1 (en) | Band-pass filter | |
US20130249652A1 (en) | Gigahertz common-mode filter for multi-layer planar structure | |
TW480770B (en) | Miniaturized trisection cross-coupled bandpass filter structure | |
CN109904570A (zh) | 一种介质波导滤波器 | |
CN106450611A (zh) | 基于基片集成波导的高频率选择性平衡带通滤波器 | |
JP6267801B2 (ja) | 共振器、フィルタおよび通信装置 | |
JP6563776B2 (ja) | 共振器、バンドパスフィルタおよび通信装置 | |
CN211605368U (zh) | 滤波结构和滤波器件 | |
US9882544B2 (en) | Electronic component | |
CN114937856B (zh) | 一种基于混合电磁耦合的基片集成波导带通滤波器 | |
WO2021056415A1 (zh) | 陶瓷介质滤波器 | |
WO2019179524A1 (zh) | 双模谐振器、滤波器及射频单元 | |
KR20210021736A (ko) | 전송영점을 갖는 로우 패스 필터 | |
US11201599B2 (en) | Band pass filter | |
JPH0646083Y2 (ja) | ストリップラインフィルタ | |
KR102721020B1 (ko) | 필터 구조 및 필터 장치 | |
JP6013280B2 (ja) | 高周波伝送線路 | |
TWI843274B (zh) | 多層共振器線路結構及多層濾波器線路結構 | |
JP2006332979A (ja) | ハイパスフィルタ | |
CN109286383A (zh) | 一种新型介质陶瓷低通滤波器 | |
JP6068678B2 (ja) | 誘電体共振器,誘電体フィルタおよび通信装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21787857 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2021787857 Country of ref document: EP Effective date: 20221003 |
|
ENP | Entry into the national phase |
Ref document number: 2022563004 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20227036709 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |