CN112514156A - High-pass filter - Google Patents
High-pass filter Download PDFInfo
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- CN112514156A CN112514156A CN201880096141.4A CN201880096141A CN112514156A CN 112514156 A CN112514156 A CN 112514156A CN 201880096141 A CN201880096141 A CN 201880096141A CN 112514156 A CN112514156 A CN 112514156A
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- pass filter
- plate
- resonance
- high pass
- bottom plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
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- 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
- H01P1/2016—Slot line filters; Fin line filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a high-pass filter. A high pass filter according to an embodiment, comprising: a backplane of electrically conductive material; and at least one resonance bar extending from a front end of the chassis base in parallel with the chassis base, integrally formed with the chassis base, and bent from the chassis base, and forming resonance in a use frequency band of the high pass filter.
Description
Technical Field
Embodiments of the present invention relate to high pass filters.
Background
Generally, a high pass filter is used in most of the transceiving communication devices such as a mobile communication base station or a repeater. Among them, a Cavity filter having a Cavity (Cavity) structure is mainly used for a device requiring high power such as a mobile communication base station. The cavity filter has a structure in which a plurality of cavities are formed in the filter and resonators are provided in the cavities, and the filtering is realized by resonance of each cavity. The existing cavity filter for the base station has the problems of large volume, heavy weight and high cost.
Disclosure of Invention
[ problem ] to provide a method for producing a semiconductor device
It is an object of embodiments of the present invention to provide a high pass filter that can minimize the volume and is simple to fabricate.
[ technical solution ] A
A high pass filter according to one disclosed embodiment, comprising: a backplane of electrically conductive material; and at least one resonance rod extending from a front end of the base plate in parallel with the base plate, formed integrally with the base plate, bent from the base plate, and resonating in a use frequency band of the high-pass filter.
The high pass filter may further include a first side plate extending from a rear end of the bottom plate in parallel with the bottom plate and formed integrally with the bottom plate and bent from the bottom plate.
The high pass filter may further include at least one first slit formed by cutting a portion of the bottom plate at a boundary of the bottom plate and the first side plate.
The high pass filter may further include: a first closing plate extending from one side end of the bottom plate to one side direction of the bottom plate, integrally formed with the bottom plate, and bent with the bottom plate; and a second closing plate extending from the other side end of the bottom plate to the other side direction of the bottom plate, integrated with the bottom plate, and bent with the bottom plate.
The high pass filter may further include: at least one 2-1 st slit formed by cutting a portion of the bottom plate at a boundary of the bottom plate and the first tailgate; and at least one 2 nd-2 nd slit formed by cutting a portion of the bottom plate at a boundary of the bottom plate and the second tailgate.
The high pass filter may further include: an input terminal part which is parallel to the first tail board on the side closest to the resonance rod of the first tail board and is used for inputting signals; and an output terminal part parallel to the second closing plate at the other side of the resonance rod closest to the second closing plate, and outputting the signal filtered by the resonance rod.
The high pass filter may further include: a first insertion hole formed in any one of the bottom plate, the first side plate, and the first closing plate, into which the input terminal portion is inserted and which is led out to an outside of the high-pass filter; and a second insertion hole formed in any one of the bottom plate, the first side plate, and the second end plate, into which the output terminal part is inserted and which is led out to the outside of the high-pass filter.
The high pass filter may further include a second side plate extending from a rear end of the first side plate in parallel with the first side plate, formed integrally with the first side plate, and bent with the first side plate, and in parallel with the bottom plate at an upper portion of the bottom plate when bent.
The high pass filter may further include a third side plate extending from a rear end of the second side plate in parallel with the second side plate and formed integrally with the second side plate and bent with the second side plate, and being parallel to the first side plate in front of the first side plate when bent.
The high pass filter may further include: a distance adjusting part formed at a position of the second side plate corresponding to the resonance bar and adjusting a distance from the resonance bar; and a coupling adjustment part formed between the resonance bars on the second side plate, for adjusting an amount of electric coupling between the resonance bars.
The high pass filter may further include: a first side plate perpendicular to the bottom plate at a rear end of the bottom plate; a second side plate parallel to the bottom plate at an upper portion of the bottom plate and perpendicular to the first side plate; and a distance adjusting part formed at a position of the second side plate corresponding to the resonance bar and adjusting a distance from the resonance bar.
The distance adjusting part includes a first slit formed by removing a portion of the second side plate such that one end portion of the first bar is connected to the second side plate and the remaining portion of the first bar except the one end portion is spaced apart from the second side plate, and a first bar that is bendable toward an upper portion or a lower portion in a direction of the external force when the external force is applied to adjust the distance from the resonance bar.
The high pass filter may further include: a first side plate perpendicular to the bottom plate at a rear end of the bottom plate;
a second side plate parallel to the bottom plate at an upper portion of the bottom plate and perpendicular to the first side plate; and a coupling adjustment part formed between the resonance bars on the second side plate, for adjusting an amount of electric coupling between the resonance bars.
The coupling adjustment part includes a second slit formed by removing a portion of the second side plate so that one end portion of the second bar is connected to the second side plate and the remaining portion of the second bar except the one end portion is spaced apart from the second side plate, and a second bar that is bendable toward an upper portion or a lower portion in the direction of the external force when the external force is applied to adjust the amount of electrical coupling between the resonance bars.
The lower end portion of the resonance bar is formed closer to the inner side of the chassis than the front end of the chassis, and the high pass filter may further include a third slit which is formed on the front end of the chassis with the resonance bar interposed therebetween, and is formed by cutting a portion of the chassis in a width direction of the chassis at both side surfaces of the resonance bar.
The resonance bar may include a plurality of bending parts bent at a plurality of positions along a length direction of the resonance bar.
The high pass filter may further include bending grooves formed by cutting out a portion of both sides of the resonance bar on the plurality of bending portions.
The high pass filter may further include a frequency adjusting part formed at an end of the resonance bar and having a width greater than a width of the resonance bar, and for adjusting a frequency to cause the resonance bar to resonate in a use frequency band of the high pass filter.
According to another disclosed embodiment, the high pass filter is in a cavity shape including a plurality of resonance bars, and includes: a plate formed on the upper part of the plurality of resonance rods and forming the upper surface of the cavity; and a distance adjusting part formed at a position corresponding to the resonance bar on the plate, and adjusting a distance from the resonance bar, the distance adjusting part including a first slit formed by removing a portion of the plate such that one end portion of the first bar is connected to the plate and the remaining portion of the first bar except the one end portion is spaced apart from the plate, and the first bar being bent toward an upper portion or a lower portion in a direction of the external force when the external force is applied thereto to adjust the distance from the resonance bar.
According to still another disclosed embodiment, a high pass filter is in a cavity shape including a plurality of resonance bars, wherein the high pass filter includes: a plate formed on the upper part of the plurality of resonance rods and forming the upper surface of the cavity; and a coupling adjustment part formed at a position on the board corresponding to between the resonance bars, the coupling adjustment part being used to adjust an amount of electrical coupling between the resonance bars, the coupling adjustment part including a second slit formed by removing a portion of the board such that one end portion of the second bar is connected to the board and the remaining portion of the second bar except the one end portion is spaced apart from the board, the second bar being bent toward an upper portion or a lower portion in a direction of the external force when the external force is applied thereto to adjust the amount of electrical coupling between the resonance bars.
[ PROBLEMS ] the present invention
According to the disclosed embodiments, the high pass filter is integrally formed by one conductive plate, and the cavity shape is formed by bending each component, so that the manufacture of the high pass filter can be facilitated, the weight of the high pass filter can be reduced, and the volume of the high pass filter can be reduced.
Drawings
FIG. 1 is an expanded view of a high pass filter according to an embodiment of the invention.
Fig. 2 is a perspective view of an assembled state of a high pass filter according to an embodiment of the present invention.
Fig. 3 is a perspective view of the internal state of a high pass filter according to an embodiment of the present invention.
Fig. 4 is an expanded view of a high pass filter according to another embodiment of the present invention.
Fig. 5 is a graph of a case where a high pass filter according to an embodiment of the present invention has 6 resonance bars.
Detailed Description
Hereinafter, a specific embodiment of the present invention will be described with reference to the accompanying drawings. The following detailed description is provided to facilitate an understanding of the methods, devices, and/or systems described throughout this specification. This is merely exemplary and is not intended to limit the present invention.
In describing the embodiments of the present invention, detailed descriptions of known technologies related to the present invention will be omitted if the gist of the present invention is confused. Further, the terms described below may be defined in consideration of functions in the present invention, and may be different according to the intention of a user or an operator, a convention, or the like. Accordingly, this definition should be defined based on the contents throughout this specification. The terminology used in the detailed description is for the purpose of describing the embodiments of the invention only and is not intended to be limiting. The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. In the present specification, the terms "comprises" or "comprising" are used to indicate a certain feature, a number, a step, an action, a component, a part thereof, or a combination thereof, and should not be interpreted as excluding the possibility of existence or existence of another feature, a number, a step, an action, a component, a part thereof, or a combination thereof other than or in addition to the content described.
In addition, directional terms such as upper, lower, one side, the other side, etc. are related to the arrangement direction of the disclosed drawings. Components of embodiments of the present invention may be positioned in a number of orientations and the directional terminology is used for purposes of illustration and is in no way limiting.
Moreover, the terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The term is used for distinguishing one component from another. For example, a first element could be termed a second element, and a second element could be termed a first element, without departing from the scope of the present invention.
Fig. 1 is an expanded view of a high pass filter according to an embodiment of the present invention, fig. 2 is a perspective view of an assembled state of the high pass filter according to an embodiment of the present invention, and fig. 3 is a perspective view of an internal state of the high pass filter according to an embodiment of the present invention. In fig. 3, the first side plate is omitted in order to illustrate the internal state of the high-pass filter. In an exemplary embodiment, the high pass filter may be integrally formed from a conductive plate (e.g., a copper plate, etc.).
Referring to fig. 1 to 3, the high pass filter 100 may include a bottom plate 102, a first side plate 104, a first closing plate 106, a second closing plate 108, a resonant rod 110, a second side plate 112, and a third side plate 114.
The high pass filter 100 is formed in an expanded form by one conductive plate, and each component is bent to form a cavity filter. The high pass filter 100 may be integrally formed by punching a conductive plate using a die having a predetermined shape.
The chassis 102 may be a portion constituting the bottom surface (lower surface) of the high pass filter 100. The base plate 102 may be constructed from a flat plate of conductive material (e.g., copper, etc.). The base plate 102 may be formed of a rectangular plane having a predetermined length and width, but is not limited to the shape. The base plate 102 may be mounted on a substrate 50 (e.g., a printed circuit board, etc.).
The first side plate 104 may be formed by extending the base plate 102. The first side plate 104 may be parallel to the base plate 102 at the rear end of the base plate 102. The first side plate 104 may be formed to have a length corresponding to the length of the bottom plate 102 (the length in the horizontal direction of fig. 1).
The first side plate 104 may be bent perpendicular to the bottom plate 102. For this, a first slit 111 may be formed at the boundary between the bottom plate 102 and the first side plate 104. For example, the first slit 111 may be formed by cutting a portion inward at both ends of the boundary between the bottom plate 102 and the first side plate 104. However, without being limited thereto, at least one first slit 111 may be formed at any position of the boundary line between the bottom plate 102 and the first side plate 104.
The first closeout plate 106 may extend from one side end of the base plate 102 to one side of the base plate 102. The first closeout plate 106 may have a width (length in the vertical direction of fig. 1) corresponding to the base plate 102. The first closing end plate 106 may extend in a direction perpendicular to the first side plate 104 d.
The first closeout plate 106 may be bent perpendicular to the base plate 102. To this end, a 2-1 st slit 113-1 may be formed at the boundary of the base plate 102 and the first closing plate 106. For example, the 2 nd-1 st slits 113-1 may be formed by cutting a portion inward at both ends of the boundary of the base plate 102 and the first closing plate 106. One side end of the base plate 102 may be vertically formed with a first slit 111 and a 2-1 st slit 113-1.
The second closing plate 108 may extend from the other side end of the bottom plate 102 to the other side direction of the bottom plate 102. The second closeout plate 108 may have a width (length in the vertical direction of fig. 1) corresponding to the base plate 102. The second closeout panel 108 may extend in a direction perpendicular to the first side panel 104.
The second closeout plate 108 may be bent perpendicular to the base plate 102. To this end, a 2 nd-2 nd slit 113-2 may be formed at the boundary of the base plate 102 and the second closing plate 108. For example, the 2 nd-2 nd slits 113-2 may be formed by cutting a portion inward at both ends of the boundary of the base plate 102 and the second closing plate 108. The other side end of the base plate 102 may be vertically formed with a first slit 111 and a 2 nd-2 nd slit 113-2.
The resonance bar 110 is a portion for forming resonance in the use frequency (i.e., the filtering frequency) of the high pass filter 100. That is, when the high pass filter 100 is a band pass filter, the resonance bar 110 may form a resonance in the pass band. The resonance bar 110 may protrude forward of the base plate 102 at the front end of the base plate 102.
The front end of the base plate 102 may be formed with a plurality of resonance bars 110 spaced apart from each other. When a plurality of resonant rods 110 are formed, the respective resonant rods 110 may be spaced apart from each other by a predetermined distance. Each of the resonance rods 110 may be rod-shaped (or bar-shaped), but is not limited to this shape. The number of the resonance bars 110 may be selected as appropriate based on the performance of a communication system using the high pass filter 100 and the frequency selectivity required for the communication system.
The lower end portion of the resonance bar 110 may be formed closer to the inner side of the base plate 102 than the front end of the base plate 102. For this, a third slit 115 is formed at the front end of the base plate 102 with the resonant bar 110 interposed therebetween. Third slits 115 may be formed on both sides of the resonance bar 110 on the lower end portion of the resonance bar 110 in the width direction of the base plate 102.
As described above, at the lower end portion of each resonance bar 110, each resonance bar 110 may be bent perpendicularly to the base plate 102 as the third slits 115 are formed at both sides of the resonance bar 110. Further, since the lower end portions of the resonance rods 110 are located more inward of the bottom plate 102 than the front end of the bottom plate 102, each resonance rod 110 can be located at the center of the cavity filter when the resonance rod 110 is bent perpendicularly to the bottom plate 102.
Each resonance bar 110 may include a plurality of bent portions 110 a. Each resonance bar 110 may include a plurality of bent portions 110a bent at a plurality of points in a length direction of the resonance bar 110.
In an exemplary embodiment, each resonance bar 110 may be formed in a zigzag shape by a plurality of bent portions 110 a. That is, when the respective resonant rods 110 are bent at a plurality of points in the longitudinal direction of the resonant rods 110, the bending directions alternate. For example, the first bent part 110a-1 may be bent perpendicularly to the base plate 102 at the lower end of the resonance bar 110 by the third slits 115. The second bent portion 110a-2 may be perpendicularly bent toward the inner side of the bottom plate 102 at the end of the first bent portion 110a-1 and be parallel to the bottom plate 102. The third bent portion 110a-3 may be bent perpendicularly at an end of the second bent portion 110a-2 and perpendicular to the bottom plate 102. The fourth bent portion 110a-4 may be perpendicularly bent toward the outside of the bottom plate 102 at the end of the third bent portion 110a-3 and be parallel to the bottom plate 102. The fifth bent portion 110a-5 may be bent perpendicularly at an end of the fourth bent portion 110a-4 and perpendicular to the bottom plate 102.
As described above, the resonance bar 110 is bent in a zigzag shape by the plurality of bent portions 110a, so that it is possible to minimize the entire volume of the high pass filter 100 while enabling resonance to be generated in the use frequency band of the high pass filter 100. The number of bending times of the resonant rod 110 may be appropriately selected according to the frequency band of the high pass filter 100.
An end of each bent portion 110a of the resonant rod 110 may be formed with a bending groove 110 b. The bending grooves 110b may be formed at both sides of the resonance bar 110 at the end of each bent portion 110 a. Further, since the bending groove 110b is formed, the end of each bent portion 110a can be easily bent.
The distal end of the resonant bar 110 may be formed with a frequency adjustment part 110 c. The frequency adjustment part 110c may function to adjust a frequency to resonate the resonance bar 110 at a frequency band used by the high pass filter 100. The frequency adjustment part 110c is formed extending from the distal end of the resonance bar 110. The frequency adjustment part 110c may have a width greater than that of the resonance bar 110. As the area of the frequency adjustor 110c is increased, the resonant frequency of the resonant bar 110 is decreased, and thus the resonant frequency of the resonant bar 110 can be adjusted by the area of the frequency adjustor 110 c.
The frequency adjustment part 110c may be vertically bent at the end of the resonance bar 110. For example, the frequency adjustment part 110c may be bent perpendicularly to the inner side of the base plate 102 at the end of the fifth bent part 110a-5 and be parallel to the base plate 102.
In addition, an input terminal part 121 may be formed on the resonant rod 110 adjacent to the first closing plate 106. The input terminal part 121 may be perpendicular to the resonance bar 110 at one side of the resonance bar 110 and parallel to the first closing plate 106. The lower end of the first closeout plate 106 may be formed with a first insertion hole 131. When the first closing plate 106 and the resonance lever 110 are respectively bent perpendicularly to the base plate 102, the input terminal portion 121 is inserted into the first insertion hole 131 and protrudes outward of the first closing plate 106. The input terminal section 121 can input a signal received by an antenna of a communication system.
In addition, an output terminal part 123 may be formed on the resonant rod 110 adjacent to the second closing plate 108. The output terminal part 123 may be perpendicular to the resonant rod 110 at the other side of the resonant rod 110 and parallel to the second closing plate 106. The lower end of the second closeout plate 108 may be formed with a second receptacle 133. When the second closing plate 108 and the resonance lever 110 are respectively bent perpendicularly to the base plate 102, the output terminal portions 123 are inserted into the second insertion holes 133 and protrude outward of the second closing plate 108. The output terminal part 121 may output the signal filtered by the high pass filter 100.
Here, although it is described that the first and second insertion holes 131 and 133 for inserting the input terminal part 121 and the output terminal part 123 are formed in the first and second closing plates 106 and 108, respectively, it is not limited thereto, and the first and second insertion holes 131 and 133 may be formed in the bottom plate 102 or the first or third side plates 104 or 114, etc. according to the drawing direction of the input terminal part 121 and the output terminal part 123.
A second side panel 112 may be formed extending from the first side panel 104. The second side panel 112 may extend from a rear end of the first side panel 104 parallel to the first side panel 104. The second side panel 112 may have a length corresponding to the first side panel 104.
The second side plate 112 may be bent perpendicular to the first side plate 104. For this, a fourth slit 117 may be formed at the boundary of the first side plate 104 and the second side plate 112. For example, the fourth slits 117 may be formed by cutting a portion of the boundary between the first side plate 104 and the second side plate 112 inward.
The second side plate 112 can be bent perpendicularly to the first side plate 104 in a state where the first side plate 104 and the bottom plate 102 are bent perpendicularly. At this time, the second side plate 112 may be parallel to the base plate 102 at an upper portion of the base plate 102.
The second side plate 112 may be formed with an adjusting part 125. The second side plate 112 may have a plurality of adjusting parts 125 spaced apart from each other. The adjusting part 125 may include a spacing adjusting part 125-1 and a coupling adjusting part 125-2.
The spacing adjustment parts 125-1 may be formed on the second side plate 112 at positions corresponding to the resonance bars 110, respectively. That is, when the second side plate 112 is positioned at the upper portion of the base plate 102, the spacing adjustment part 125-1 may be positioned at the upper portion of each resonance bar 110.
The spacing adjustment part 125-1 may include a first slit 125-1a and a first rod 125-1 b. The first slit 125-1a may be formed by removing a portion of the second side plate 112. Wherein the first slit 125-1a may be formed such that one end portion of the first rod 125-1b is connected to the second side plate 112 and the remaining portion of the first rod 125-1b is spaced apart from the second side plate 112.
In an exemplary embodiment, the first slit 125-1a may be formed along three edges of the first rod 125-1b such that the first rod 125-1b forms a rod shape (a rectangle having a long length). That is, the first slit 125-1a may be formed along one side edge, the other end edge, and the other side edge of the first bar 125-1 b. Also, an end of the first rod 125-1b may be connected to the second side plate 112.
In this case, the first rod 125-1b is bent toward the lower or upper portion in the direction of an external force applied to the first rod 125-1b in a state where one end portion is connected to the second side plate 112. When the spacing adjustment part 125-1 is located at the upper part of each resonance bar 110, the first rod 125-1b is bent downward or upward, so that the spacing of the first rod 125-1b from the resonance bar 110 can be adjusted.
The coupling adjustment part 125-2 may be formed between the spacing adjustment parts 125-1 on the second side plate 112. That is, when the second side plate 112 is positioned at the upper portion of the base plate 102, the coupling adjustment part 125-2 may be formed between the resonance bars 110.
The coupling adjustment part 125-2 may include a second slit 125-2a and a second rod 125-2 b. The second slit 125-2a may be formed by removing a portion of the second side plate 112. Wherein the second slit 125-2a may be formed such that one end portion of the second rod 125-2b is connected to the second side plate 112 and the remaining portion of the second rod 125-2b is spaced apart from the second side plate 112. The second rod 125-2b may have a width that is less than the width of the first rod 125-1 b. The second rod 125-2b may have a length greater than the length of the first rod 125-1 b.
In an exemplary embodiment, the second slit 125-2a may be formed along three edges of the second rod 125-2b such that the second rod 125-2b forms a rod shape (a rectangle having a long length). That is, the second slit 125-2a may be formed along one side edge, the other end edge, and the other side edge of the second bar 125-2 b. Also, an end of the second rod 125-2b may be connected to the second side plate 112.
In this case, the second rod 125-2b is bent toward the lower or upper portion in the direction of the external force applied to the second rod 125-2b in a state where one end portion is connected to the second side plate 112. When the coupling adjustment part 125-2 is positioned at the upper part of each resonance bar 110, the second rod 125-2b is bent downward or upward, thereby adjusting the amount of electric coupling between the resonance bars 110.
As described above, the adjusting part 125 can adjust the resonant frequency of the resonant bars 110 based on at least one of the pitch adjustment of the resonant bars 110 by the adjustment pitch adjusting part 125-1 and the coupling adjustment of the resonant bars 110 by the coupling adjusting part 125-2.
The third side panel 114 may extend from the second side panel 112. The third side plate 114 may extend from the rear end of the second side plate 112 in parallel with the second side plate 112. The third side panel 114 may have a length corresponding to the second side panel 112.
The third side panel 114 may be bent perpendicular to the second side panel 112. To this end, a fifth slit 119 may be formed at the boundary of the second and third side plates 112 and 114. For example, the fifth slits 119 may be formed by cutting a portion of the boundary between the second side plate 112 and the third side plate 114 inward
The third side plate 114 can be bent perpendicularly to the second side plate 112 in a state where the first side plate 104 is bent perpendicularly to the bottom plate 102 and the second side plate 112 is bent perpendicularly to the first side plate 104. The third side panel 114 may be parallel to the first side panel 104 forward of the first side panel 104.
The high pass filter 100 may have a square column shape with two open ends and a hollow interior through the bottom plate 102, the first side plate 104, the second side plate 112 and the third side plate 114. Also, the first and second headers 106 and 108 are formed at one end and the other end of the chassis base 102, so that the high pass filter 100 has a square column shape with both ends sealed and the inside being empty.
According to the disclosed embodiment, the high pass filter 100 is integrally formed by one conductive plate, and each component is bent to form a cavity shape, so that the high pass filter 100 can be easily manufactured, the weight of the high pass filter 100 can be reduced, and the volume of the high pass filter 100 can be reduced.
That is, the high-pass filter 100 can be easily manufactured by press-forming a predetermined die from a conductive plate, and the high-pass filter 100 can be mass-manufactured. Further, the resonance rod 110 of the high pass filter 100 is formed by bending a plurality of times, so that the volume of the high pass filter 100 can be reduced. At this time, since the resonance frequency of the resonance bar 110 can be adjusted by the frequency adjusting part 110c and the adjusting part 125, resonance can be generated in the target frequency band while minimizing the volume of the high pass filter 100.
In addition, although the bottom plate 102, the first side plate 104, the first closing plate 106, the second closing plate 108, the resonant rod 110, the second side plate 112, and the third side plate 114 are described as being formed of one conductive plate, as shown in fig. 4, the second side plate 112 and the third side plate 114 may be separately manufactured, and then the second side plate 112 may be joined to the rear end of the first side plate 104, and the third side plate 114 may be joined to the front end of the bottom plate 102.
Fig. 5 is a graph of the case of having 6 resonance bars in the high pass filter according to the embodiment of the present invention.
Referring to fig. 5, the high pass filter 100 forms a resonance in a 3.5GHz bandwidth. Here, although the case where the resonance frequency of the resonance lever 108 is 3.5GHz is illustrated, the resonance frequency is not limited to this, and may be adjusted according to the length of the resonance lever 110, the number of times of bending of the resonance lever 110, and the like. Further, the resonance frequency can be adjusted according to the size of the frequency adjustment part 110c formed at the end of the resonance bar 110.
Further, the resonant frequency of the high pass filter 100 can be adjusted to a target frequency band by adjusting the spacing between the first rod 125-1b and the corresponding resonant rod 110 at the spacing adjustment portion 125-1 and by adjusting the amount of electric coupling between the resonant rods 110 and the like at the coupling adjustment portion 125-2.
While the exemplary embodiments of the present invention have been described in detail above, it should be understood that various modifications may be made to the above embodiments by those skilled in the art without departing from the scope of the present invention. Accordingly, the scope of the invention should not be limited to the above-described embodiments, but should be determined only by the appended claims and equivalents thereof.
Claims (20)
1. A high pass filter comprising:
a backplane of electrically conductive material; and
and at least one resonance bar extending from a front end of the base plate in parallel with the base plate, formed integrally with the base plate, and bent from the base plate, and forming resonance in a use frequency band of the high-pass filter.
2. The high pass filter of claim 1, further comprising a first side plate extending from the rear end of the bottom plate in parallel with the bottom plate and formed integrally with the bottom plate and bent from the bottom plate.
3. The high pass filter of claim 2, wherein the high pass filter further comprises at least one first slit formed by cutting a portion of the bottom plate at a boundary of the bottom plate and the first side plate.
4. The high pass filter of claim 2, wherein the high pass filter further comprises:
a first closing plate extending from one side end of the bottom plate to one side direction of the bottom plate, integrally formed with the bottom plate, and bent with the bottom plate; and
and the second tail collecting plate extends from the other side end of the bottom plate to the other side direction of the bottom plate, is integrated with the bottom plate and is bent with the bottom plate.
5. The high pass filter of claim 4, wherein the high pass filter further comprises:
at least one 2-1 st slit formed by cutting a portion of the bottom plate at a boundary of the bottom plate and the first tailgate; and
at least one 2 nd-2 nd slit formed by cutting a portion of the bottom plate at a boundary of the bottom plate and the second tailgate.
6. The high pass filter of claim 4, wherein the high pass filter further comprises:
an input terminal part which is parallel to the first tail board on the side closest to the resonance rod of the first tail board and is used for inputting signals; and
and an output terminal part which is parallel to the second tail plate at the other side of the resonance rod closest to the second tail plate and is used for outputting the signal filtered by the resonance rod.
7. The high pass filter of claim 6, wherein the high pass filter further comprises:
a first insertion hole formed in any one of the bottom plate, the first side plate, and the first closing plate, into which the input terminal portion is inserted and which is led out to an outside of the high-pass filter; and
and a second insertion hole formed in any one of the bottom plate, the first side plate, and the second end plate, into which the output terminal part is inserted and which is led out to the outside of the high-pass filter.
8. The high pass filter of claim 2, further comprising a second side plate extending parallel to and integral with the first side plate from a rear end of the first side plate, bent with the first side plate, and parallel to the bottom plate at an upper portion of the bottom plate when bent.
9. The high pass filter of claim 8, further comprising a third side plate extending parallel to and integral with the second side plate from a rear end thereof and bent with the second side plate and parallel to the first side plate in front of the first side plate when bent.
10. The high pass filter of claim 8, wherein the high pass filter further comprises:
a distance adjusting part formed at a position of the second side plate corresponding to the resonance bar and adjusting a distance from the resonance bar; and
and a coupling adjustment part formed between the resonance bars on the second side plate and used for adjusting the amount of electric coupling between the resonance bars.
11. The high pass filter of claim 1, wherein the high pass filter further comprises:
a first side plate perpendicular to the bottom plate at a rear end of the bottom plate;
a second side plate parallel to the bottom plate at an upper portion of the bottom plate and perpendicular to the first side plate; and
and the interval adjusting part is formed at the position, corresponding to the resonance rod, on the second side plate and is used for adjusting the interval between the resonance rod and the interval adjusting part.
12. The high pass filter according to claim 11, wherein the spacing adjustment section includes a first slit and a first rod,
the first slit is formed by removing a portion of the second side plate such that an end portion of the first rod is connected to the second side plate and the remaining portion of the first rod except the end portion is spaced apart from the second side plate,
the first rod is bent toward an upper or lower portion in a direction of an external force when the external force is applied to adjust a distance from the resonance bar.
13. The high pass filter of claim 1, wherein the high pass filter further comprises:
a first side plate perpendicular to the bottom plate at a rear end of the bottom plate;
a second side plate parallel to the bottom plate at an upper portion of the bottom plate and perpendicular to the first side plate; and
and a coupling adjustment part formed between the resonance bars on the second side plate and used for adjusting the amount of electric coupling between the resonance bars.
14. The high pass filter according to claim 13, wherein the coupling adjustment section includes a second slit and a second rod,
the second slit is formed by removing a portion of the second side plate such that an end portion of the second rod is connected to the second side plate and the remaining portion of the second rod except the end portion is spaced apart from the second side plate,
the second rod is bent toward the upper or lower portion in the direction of the external force when the external force is applied to adjust the amount of electric coupling between the resonance bars.
15. The high pass filter of claim 1, wherein lower end portions of the resonance bars are formed closer to an inner side of the bottom plate than front ends of the bottom plate,
the high pass filter further includes a third slit on a front end of the chassis base sandwiching the resonance bar and formed by cutting a portion of the chassis base along a width direction of the chassis base at both side surfaces of the resonance bar.
16. The high pass filter of claim 1, wherein the resonant bar includes a plurality of bent portions bent at a plurality of positions along a length direction of the resonant bar.
17. The high pass filter of claim 16, wherein the high pass filter further comprises bending grooves formed by cutting a portion of both sides of the resonance bar at the plurality of bending parts.
18. The high pass filter according to claim 1, wherein the high pass filter further comprises a frequency adjusting part formed at an end of the resonance bar and having a width greater than a width of the resonance bar, and for adjusting a frequency to cause the resonance bar to resonate in a use frequency band of the high pass filter.
19. A high-pass filter in the form of a cavity including a plurality of resonant rods, comprising:
a plate formed on the upper part of the plurality of resonance rods and forming the upper surface of the cavity; and
a space adjusting part formed at a position corresponding to the resonance bar on the board and adjusting a space from the resonance bar,
the interval adjustment part comprises a first slit and a first rod,
the first slit is formed by removing a portion of the plate such that an end portion of the first rod is connected to the plate and the remaining portion of the first rod except for the end portion is spaced apart from the plate,
the first rod is bent toward an upper or lower portion in a direction of an external force when the external force is applied to adjust a distance from the resonance bar.
20. A high-pass filter in the form of a cavity including a plurality of resonant rods, comprising:
a plate formed on the upper part of the plurality of resonance rods and forming the upper surface of the cavity; and
a coupling adjustment part formed at a position on the board corresponding to the resonance bars and for adjusting an amount of electric coupling between the resonance bars,
the coupling adjustment part comprises a second slit and a second rod,
the second slit is formed by removing a portion of the plate such that an end portion of the second rod is connected to the plate and the remaining portion of the second rod except for the end portion is spaced apart from the plate,
the second rod is bent toward the upper or lower portion in the direction of the external force when the external force is applied to adjust the amount of electric coupling between the resonance bars.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180089788A KR101939989B1 (en) | 2018-08-01 | 2018-08-01 | High frequency filter |
| KR10-2018-0089788 | 2018-08-01 | ||
| PCT/KR2018/008811 WO2020027355A1 (en) | 2018-08-01 | 2018-08-02 | High-pass filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112514156A true CN112514156A (en) | 2021-03-16 |
| CN112514156B CN112514156B (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880096141.4A Active CN112514156B (en) | 2018-08-01 | 2018-08-02 | High-pass filter |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101939989B1 (en) |
| CN (1) | CN112514156B (en) |
| WO (1) | WO2020027355A1 (en) |
Cited By (3)
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| WO2023005884A1 (en) * | 2021-07-29 | 2023-02-02 | 华为技术有限公司 | Filter and manufacturing method therefor, and antenna |
| WO2023122974A1 (en) * | 2021-12-28 | 2023-07-06 | Telefonaktiebolaget Lm Ericsson (Publ) | A resonance element, a one-piece resonance member and a cavity filter |
| WO2023130219A1 (en) * | 2022-01-04 | 2023-07-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Filter cover, resonator, rf cavity filter and communication device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112514156B (en) | 2022-08-19 |
| WO2020027355A1 (en) | 2020-02-06 |
| KR101939989B1 (en) | 2019-01-18 |
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