Dielectric filter

Abstract

This dielectric filter has a plurality of resonance units arranged in vertical and horizontal configurations on upper, lateral, and lower sides of a dielectric block, increasing frequency selectivity, and enabling miniaturization of the filter, thus providing a simplified coupling structure and facilitating adjustment of frequency response characteristics. The present invention has an effect of providing a miniaturized filter by arranging a plurality of resonance units in vertical and horizontal configurations on the upper, lateral, and lower sides of a dielectric block. The present invention can increase frequency selectivity and effectively suppress unnecessary bands, thereby maintaining excellent filtering performance even in high-frequency bands and improving the transmission efficiency of a communication device.

Description

Genome Filter

[0001] The present invention relates to a dielectric filter, and more specifically, to a dielectric filter in which a plurality of resonant elements are arranged vertically and horizontally on the upper, side, and lower surfaces of a dielectric block, thereby increasing frequency selectivity and miniaturizing the filter to facilitate a simplified coupling structure and easy adjustment of frequency response characteristics.

[0002] A dielectric filter is a filter that uses a dielectric to filter out electromagnetic waves at specific frequencies. These dielectric filters can be primarily used in high-frequency circuits such as mobile communication systems, satellite communication, radar, and wireless networks.

[0003] Conventional dielectric filters implement dielectric waveguide filters by connecting monoblocks of multiple dielectric materials, specifically by forming a metal pattern on the contact surface of each monoblock and controlling the RF characteristics of the filter by adjusting the shape of the metal pattern.

[0004] Conventional dielectric filters are implemented by filtering signals through an array of multiple resonant elements on the upper surface. However, forming many resonant elements within a limited area results in a complex manufacturing process, and constraints on resonant circuit design have made it difficult to achieve filter miniaturization.

[0005] Therefore, dielectric filters can be miniaturized to overcome the limitations of resonant circuit design, and along with this, there is an increasing demand to improve filter structures to reduce transmission loss and minimize signal interference.

[0006] The present invention aims to provide a dielectric filter that facilitates easy adjustment of frequency response characteristics and a simplified coupling structure by arranging a plurality of resonant sections in vertical and horizontal configurations on the upper, side, and lower surfaces of a dielectric block, thereby increasing frequency selectivity and miniaturizing the filter.

[0007] A dielectric filter according to the features of the present invention for achieving the above objective comprises a dielectric block having a conductive coating layer formed on its surface, an input terminal and an output terminal formed spaced apart from each other on the lower surface of the dielectric block, a plurality of coupling adjustment parts formed in the shape of a recessed groove on the surface of the dielectric block, a plurality of resonant parts that set a resonant frequency band penetrating the dielectric block in the vertical direction between at least some of the plurality of resonant parts, and a notch adjustment part that removes at least some of the dielectric block between two resonant parts facing each other in the vertical direction, wherein the plurality of resonant parts may include at least one vertical resonant part formed in the shape of a recessed groove in the vertical direction on the surface of the dielectric block and at least one horizontal resonant part formed in the shape of a recessed groove in the horizontal direction on the surface of the dielectric block.

[0008] At least some of the plurality of resonant parts are arranged in one direction, and the vertical resonant parts and the horizontal resonant parts may be arranged alternately in the one direction.

[0009] A plurality of resonant sections may be arranged such that a first resonant section, a second resonant section, and a third resonant section are alternately arranged in a first direction on both sides based on the coupling adjustment section and the notch adjustment section, and a fourth resonant section, a fifth resonant section, and a sixth resonant section are alternately arranged in a second direction.

[0010] The first resonant part may be composed of the vertical resonant part, the second resonant part of the horizontal resonant part, and the third resonant part of the horizontal resonant part, and the fourth resonant part may be composed of the vertical resonant part, the fifth resonant part of the horizontal resonant part, and the sixth resonant part may be composed of the horizontal resonant part.

[0011] The first resonant section, the third resonant section, the fourth resonant section, and the sixth resonant section can be configured as vertical resonant sections on the upper surface opposite to the lower surface of the dielectric block.

[0012] The second resonant section is configured as a horizontal resonant section on the first side of the dielectric block, and the fifth resonant section can be configured as a horizontal resonant section on the second side, which is the opposite side facing the first side.

[0013] It is formed between the first resonance part, the third resonance part, the fourth resonance part, and the sixth resonance part, and can be extended from one direction to the other.

[0014] The notch adjustment portion is formed between the third resonant portion and the sixth resonant portion, and can be formed on the same line as the coupling adjustment portion on the surface of the dielectric block.

[0015] With the above-described configuration, the present invention has the effect of providing a miniaturized filter by arranging a plurality of resonant members in a vertical and horizontal configuration on the upper, side, and lower surfaces of a dielectric block.

[0016] The present invention can increase frequency selectivity and effectively suppress unnecessary bands, thereby maintaining excellent filtering performance even in high-frequency bands and improving the transmission efficiency of communication devices.

[0017] The present invention has the effect of maintaining high selectivity in a specific frequency band through the alternating arrangement of vertical and horizontal resonant sections and the structural design of the coupling control section.

[0018] The present invention has the effect of reducing signal loss and maximizing signal transmission efficiency in the frequency band by forming a conductive coating layer on a dielectric block.

[0019] The present invention provides a multi-stage filtering structure capable of handling various frequency bands by including a plurality of resonant sections and a notch control section, thereby enabling high-performance filtering functions even in communication devices using multiple frequencies.

[0020] The present invention allows a filter to selectively suppress a specific frequency band through a notch control unit, thereby preventing unnecessary signal interference, accurately filtering only the necessary signals in the high-frequency band, and increasing the reliability of the communication system.

[0021] The dielectric filter of the present invention can be easily mounted in various communication devices in the form of a rectangular block, provides structural flexibility regardless of the installation direction, and has the effect of being applied in various ways according to the design of the communication device.

[0022] FIGS. 1 to 3 are drawings showing the configuration of a dielectric filter according to a first embodiment of the present invention.

[0023] FIG. 4 is a drawing showing the upper surface of a dielectric block according to the first embodiment of the present invention.

[0024] FIG. 5 is a drawing showing the lower surface of a dielectric block according to the first embodiment of the present invention.

[0025] FIG. 6 is a diagram showing the internal structure of a dielectric block according to the first embodiment of the present invention.

[0026] FIG. 7 is a diagram showing the configuration of a dielectric filter according to a second embodiment of the present invention.

[0027] FIG. 9 is a drawing showing the upper surface of a dielectric block according to a second embodiment of the present invention.

[0028] FIG. 10 is a drawing showing the lower surface of a dielectric block according to a second embodiment of the present invention.

[0029] The present invention is susceptible to various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Similar reference numerals have been used for similar components in the description of each drawing.

[0030] Terms such as first, second, A, B, etc., may be used to describe various components, but said components shall not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of a plurality of related described items or any of a plurality of related described items.

[0031] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0032] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0033] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0034] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. In order to facilitate an overall understanding of the present invention, the same reference numerals are used for identical components in the drawings, and redundant descriptions of identical components are omitted.

[0035] The present invention relates to a dielectric filter mounted on a wireless communication device to pass a desired frequency band. The dielectric filter can be designed with a structure utilizing a resonance phenomenon to minimize transmission loss in devices using high-frequency bands. In particular, the dielectric filter of the present invention arranges a plurality of resonance sections vertically and horizontally on the upper, side, and lower surfaces of a dielectric block, thereby increasing frequency selectivity and miniaturizing the filter to provide a structure that facilitates a simplified coupling structure and easy adjustment of frequency response characteristics.

[0036] The dielectric filter of the present invention may belong to the field of filter technology that includes a dielectric block designed to reduce transmission loss in the high-frequency band and maximize filtering performance, a multi-resonant section, a coupling control section, and a notch control section.

[0037] Hereinafter, a dielectric filter according to an embodiment of the present invention will be described with reference to the attached drawings.

[0038] FIGS. 1 to 3 are drawings showing the configuration of a dielectric filter according to a first embodiment of the present invention, FIG. 4 is a drawing showing the upper surface of a dielectric block according to a first embodiment of the present invention, FIG. 5 is a drawing showing the lower surface of a dielectric block according to a first embodiment of the present invention, and FIG. 6 is a drawing showing the structure showing the interior of a dielectric block according to a first embodiment of the present invention.

[0039] As illustrated in FIGS. 1 to 5, a dielectric filter (100) according to the first embodiment of the present invention may include a dielectric block (110), a resonant part (120), a coupling control part (130), a notch control part (140), an input terminal (150), and an output terminal (151).

[0040] The dielectric filter (100) can selectively pass only the desired signal by controlling the electromagnetic waves based on the positions of a plurality of resonant sections (120), coupling control sections (130), and notch control sections (140).

[0041] The dielectric filter (110) is a rectangular block and may include an upper surface (111) and a lower surface (112). The dielectric block (110) may include a side surface (113a, 113b) connecting the upper surface (111) and the lower surface (112), with the upper surface (111) and the lower surface (112) facing each other. The dielectric block (110) may be formed, for example, substantially in the shape of a cuboid, such that the longer side surface is designated as the first side surface (113a) and the second side surface (113b), and the shorter side surface constitutes the four surfaces of the front and rear.

[0042] The dielectric block (110) is formed in the shape of a rectangular parallelepiped, but is not limited thereto and can be formed from a ceramic material, an alumina material, etc.

[0043] The dielectric block (110) is a non-directional element, and the names referring to each face may differ depending on the viewing direction or the form in which the dielectric filter is installed.

[0044] Accordingly, in this specification, the surface on which the input terminal (150) and output terminal (151) are formed may be referred to as the lower surface (112), and the opposite surface opposite to the lower surface (112) may be referred to as the upper surface (111).

[0045] A conductive coating layer may be formed on the surface of the dielectric block (110). The conductive coating layer may be made of silver (Ag). The conductive coating layer is a metal layer formed by a metallization process such as plating, deposition, or sputtering. Typically, silver (Ag), which has excellent electrical conductivity among conductive materials, is used to minimize losses in RF equipment such as filters and waveguides, but conductive materials other than silver may be used to improve properties such as corrosion resistance.

[0046] A plurality of resonant members (120) may be partitioned in a matrix arrangement on the upper surface (111) of the dielectric block (110) and formed in the shape of recessed grooves on the upper surface (111), lower surface (112), and side surfaces (113a, 113b). The plurality of resonant members (120) perform the role of adjusting the frequency band and may include at least one vertical resonant member formed in the shape of a recessed groove in the vertical direction on the upper surface (111) of the dielectric block (110), and at least one horizontal resonant member formed in the shape of a recessed groove in the horizontal direction on the side surfaces (113a, 113b) of the dielectric block (110).

[0047] The vertical resonant section is formed in a vertically recessed shape and plays a key role in frequency filtering, while the horizontal resonant section is formed larger than the hole size of the vertical resonant section to expand the bandwidth.

[0048] The size and position of each resonant part (120) can be adjusted according to the designed frequency band, and can provide flexibility to respond to various frequency environments.

[0049] The dielectric filter (110) may have at least some of the plurality of resonant parts (120) arranged in one direction.

[0050] In the dielectric block (110), a plurality of resonant sections (120) may be arranged alternately in two directions, a first direction and a second direction. For example, in the dielectric block (110), the first resonant section (121), the second resonant section (122), and the third resonant section (123) may be arranged alternately in the first direction, and the fourth resonant section (124), the fifth resonant section (125), and the sixth resonant section (126) may be arranged alternately in the second direction. Through this arrangement of resonant sections, resonant characteristics at a specific frequency can be effectively implemented, thereby further enhancing the frequency selectivity and response characteristics of the dielectric filter (100).

[0051] The first resonance section (121), the third resonance section (123), the fourth resonance section (124), and the sixth resonance section (126) are configured as vertical resonance sections, and the second resonance section (122) and the fifth resonance section (125) can be configured as horizontal resonance sections.

[0052] The dielectric block (110) may form a first resonant section (121) on one side of the upper surface, form a second resonant section (122) on one side of the first side (113a) at a certain distance from the first resonant section (121), and form a third resonant section (123) on the other side of the upper surface at a certain distance from the second resonant section (122).

[0053] The first resonant section (121) and the third resonant section (123) are formed at a certain distance from the first direction of the upper surface (111) of the dielectric block (110), and in particular, can be formed at a distance from both edge portions of the upper surface (111) of the dielectric block (110).

[0054] The second resonant section (122) is located between the first resonant section (121) and the third resonant section (123) and is formed on one side of the first side (113a) of the dielectric block (110).

[0055] The dielectric filter (110) may form a fourth resonant section (124) on one side of the upper surface (111), form a fifth resonant section (125) on one side of the second side (113b) spaced a certain distance from the fourth resonant section (124), and form a sixth resonant section (126) on the other side of the upper surface (111) spaced a certain distance from the fifth resonant section (125).

[0056] The fourth resonance section (124) and the sixth resonance section (126) are formed at a certain distance from the second direction of the upper surface (111) of the dielectric block (110), and in particular, can be formed at a distance from both edge portions of the upper surface (111) of the dielectric block (110).

[0057] The fifth resonance section (125) is located between the fourth resonance section (124) and the sixth resonance section (126) and is formed on one side of the second side (113b) of the dielectric block (110).

[0058] The second resonant section (122) may be configured as a horizontal resonant section on the first side (113a) of the dielectric block (110), and the fifth resonant section (125) may be configured as a horizontal resonant section on the second side (113b), which is the opposite side facing the first side (113a).

[0059] The coupling control unit (130) adjusts the signal coupling between the resonant unit (120) within the dielectric filter (100) to optimize signal transmission in a specific frequency band.

[0060] The coupling control unit (130) has a structure that penetrates the dielectric block (110) in a vertical direction and can set a coupling frequency band across the dielectric block (110) between the resonant units (120).

[0061] The coupling control unit (130) can set a resonant frequency band that penetrates the dielectric block (110) in a vertical direction between at least some of the plurality of resonant units (120) in order to block or attenuate the signal transmitted from the dielectric filter (110).

[0062] The coupling adjustment section (130) is formed between the first resonant section (121), the third resonant section (123), the fourth resonant section (124), and the sixth resonant section (126), and can be formed by extending long from one side to the other side. The coupling adjustment section (130) can be formed in a long shape that crosses the dielectric block (110), which corrects the resonance characteristics according to frequency in the signal path, allows for fine adjustment of the signal response characteristics of the filter, and enables the accuracy and efficiency of filtering to be increased.

[0063] The coupling control unit (130) is formed between the first resonant unit (121), the third resonant unit (123), the fourth resonant unit (124), and the sixth resonant unit (126) so that the signal is filtered in multiple stages.

[0064] The coupling control unit (130) plays an important role in the signal transmission path of the dielectric filter (100), and through this, the input signal causes optimal resonance in a specific frequency band and can block the remaining frequency bands.

[0065] The size and shape of the coupling control unit (130) may vary depending on the resonant frequency and may be precisely designed to increase frequency selectivity.

[0066] The coupling control unit (130) operates in combination with the shape of the resonance unit (120) and allows for selective filtering of multiple frequency bands.

[0067] The coupling control unit (130) is configured to resonate in a frequency band specified according to the size and shape of the through hole and the first resonant unit (121), the second resonant unit (122), the third resonant unit (123), the fourth resonant unit (124), the fifth resonant unit (125), and the sixth resonant unit (126), and accordingly, the signal transmitted through the input terminal (150) can be multi-stage filtered and output to the output terminal (151).

[0068] The notch control section (140) is a part designed to selectively block or reduce a specific frequency and can be formed by removing a portion of the dielectric block (110) in a vertical direction.

[0069] The notch control unit (140) can remove at least a portion of the dielectric block (110) between two resonant units (123, 126) facing each other among a plurality of resonant units in a vertical direction.

[0070] The notch control section (140) is formed on the surface of the dielectric block (110) between the third resonance section (123) and the sixth resonance section (126), in alignment with the coupling control section (130). This prevents a specific frequency signal from resonating when it passes through the notch control section (140), thereby providing the effect of filtering the signal of that frequency.

[0071] The notch control section (140) is opened at one end of the dielectric block (110) and penetrates in a vertical direction, and is cut to a certain depth from the opened end toward the coupling control section (130). The structure of this notch control section (140) allows the dielectric filter (100) to perform the role of selectively blocking or reducing a specific frequency band, thereby effectively blocking the signal.

[0072] The notch control unit (140) complements the frequency response characteristics of the filter and can further enhance filtering performance by selectively suppressing signals outside the required frequency band.

[0073] On the opposite side facing the surface where the first resonant part (121) and the fourth resonant part (124) are located, an input terminal (150) and an output terminal (151) can be formed at the same position as the first resonant part (121) and the fourth resonant part (124).

[0074] The input terminal (150) and output terminal (151) are parts responsible for signal input and output of the dielectric filter (100), and can be arranged facing each other at a distance from each other on the lower surface (112) of the dielectric block (110).

[0075] The input terminal (150) transmits a signal received from the outside into the filter, and the output terminal (151) can transmit the filtered signal to an external device.

[0076] The input terminal (150) and output terminal (151) are formed spaced apart on both sides based on the coupling control unit (130), and an input terminal groove (152) and an output terminal groove (153) are formed at the center of each terminal, respectively, and a first region (154) and a second region (155) in an annular shape, in which a conductive coating layer is not formed, can be formed at a certain distance from the input terminal groove (152) and the output terminal groove (153).

[0077] These first region (154) and second region (155) can increase the transmission efficiency of the dielectric filter (100) and prevent signal interference of the conductive coating layer.

[0078] The shape of the input terminal (150) and output terminal (151) is designed so that the signal is not distorted during the filtering process, thereby minimizing the loss of high-frequency signals and increasing transmission efficiency.

[0079] The dielectric filter (100) causes the electrical signal applied to the input terminal (150) to have a specific frequency response characteristic through the resonance grooves forming the resonance section (120), the coupling adjustment section (130), and the notch adjustment section (140), and allows this electrical signal to be transmitted to an external device through the output terminal (151).

[0080] The dielectric filter (100) is designed so that an electrical signal applied to the input terminal (150) passes through the resonant section (120), the coupling adjustment section (130), and the notch adjustment section (140) to have a specific frequency response characteristic, and accordingly, only a signal of a specific band is transmitted to the output terminal (151) and can be transmitted to an external device.

[0081] The dielectric filter (100) has specific frequency response characteristics as the input signal passes through the resonance section (120), coupling control section (130), and notch control section (140), and through this, the filter can transmit only a selective frequency band to the outside.

[0082] As illustrated in FIG. 6, the coupling control section (130) and the notch control section (140) penetrate from the upper surface (111) to the lower surface (112) in the vertical direction of the dielectric block (110). In contrast, the first resonant section (121), the second resonant section (122), the third resonant section (123), the fourth resonant section (124), the fifth resonant section (125), the sixth resonant section (126), the input terminal (150), and the output terminal (151) may be in a shape that is recessed to a certain depth on one side of the dielectric block (110).

[0083] FIGS. 7 and 8 are drawings showing the configuration of a dielectric filter according to a second embodiment of the present invention, FIG. 9 is a drawing showing the upper surface of a dielectric block according to a second embodiment of the present invention, and FIG. 10 is a drawing showing the lower surface of a dielectric block according to a second embodiment of the present invention.

[0084] The second embodiment includes structurally similar components to the first embodiment of FIGS. 1 to 6 described above, and the same reference numerals have been applied to identical components. Therefore, below, the description of duplicate components of the second embodiment will be omitted, and only the differences will be described. The second embodiment differs only in the formation location of the third resonant part (123), and the remaining components have the same function and location.

[0085] A dielectric filter (100) according to a second embodiment of the present invention may include a dielectric block (110), a resonance section (120), a coupling control section (130), a notch control section (140), an input terminal (150), and an output terminal (151).

[0086] The dielectric block (110) may form a first resonant section (121) on one side of the upper surface (111), form a second resonant section (122) on one side of the first side (113a) spaced a certain distance from the first resonant section (121), and form a third resonant section (123) on one side of the lower surface (112) spaced a certain distance from the second resonant section (122). The third resonant section (123) may be configured as a vertical resonant section on the lower surface (112) of the dielectric block (110).

[0087] The dielectric block (110) may form a fourth resonant section (124) on one side of the upper surface (111), form a fifth resonant section (125) on one side of the second side (113b) spaced a certain distance from the fourth resonant section (124), and form a sixth resonant section (126) on the other side of the upper surface (111) spaced a certain distance from the fifth resonant section (125).

[0088] The technical features disclosed in each embodiment of the present invention are not limited to that embodiment only, and as long as they are not mutually incompatible, the technical features disclosed in each embodiment may be combined and applied to different embodiments.

[0089] Therefore, in each embodiment, the technical features are described primarily, but as long as the technical features are not mutually incompatible, they may be combined and applied together.

[0090] The present invention is not limited to the embodiments described above and the attached drawings, and various modifications and variations may be possible from the perspective of those skilled in the art to which the present invention belongs. Accordingly, the scope of the present invention should be defined not only by the claims of this specification but also by equivalents thereof.

Claims

1. A dielectric block with a conductive coating layer formed on its surface; Input terminals and output terminals formed spaced apart from each other on the lower surface of the above-mentioned dielectric filter; A plurality of coupling control portions formed in the shape of recessed grooves on the surface of the above-mentioned genome block; A plurality of resonant parts that set a resonant frequency band penetrating a dielectric block in a vertical direction between at least some of the plurality of resonant parts; and It includes a notch adjustment member in which at least a portion of the dielectric block between two resonant members facing each other among the plurality of resonant members is removed in the vertical direction. The above plurality of resonant parts are, At least one vertical resonant member formed in the shape of a groove recessed in the vertical direction on the surface of the above-mentioned dielectric block; and at least one horizontal resonant member formed in the shape of a groove recessed in the horizontal direction on the surface of the above-mentioned dielectric block Genome filter.

2. In Paragraph 1, At least some of the above plurality of resonant parts are arranged in one direction, and The vertical resonant members and the horizontal resonant members are arranged alternately in the above one direction. Genome filter.

3. In Paragraph 1, The above plurality of resonant parts are, A first resonant section, a second resonant section, and a third resonant section are arranged alternately on both sides with respect to the coupling adjustment section and the notch adjustment section in a first direction, and a fourth resonant section, a fifth resonant section, and a sixth resonant section are arranged alternately in a second direction in a second direction. Genome filter.

4. In Paragraph 3, The first resonant part is composed of the vertical resonant part, the second resonant part is composed of the horizontal resonant part, and the third resonant part is composed of the horizontal resonant part, and the fourth resonant part is composed of the vertical resonant part, the fifth resonant part is composed of the horizontal resonant part, and the sixth resonant part is composed of the horizontal resonant part. Genome filter.

5. In Paragraph 4, The first, third, fourth, and sixth resonance sections are configured as vertical resonance sections on the upper surface opposite to the lower surface of the dielectric block. Genome filter.

6. In Paragraph 1, The second resonant section is configured as a horizontal resonant section on the first side of the dielectric block, and the fifth resonant section is configured as a horizontal resonant section on the second side, which is the opposite side facing the first side. Genome filter.

7. In Paragraph 1, The above third resonant part is configured as the vertical resonant part on the lower surface of the dielectric block. Genome filter.

8. In Paragraph 3, The horizontal resonant part is formed larger than the hole size of the vertical resonant part. Genome filter.

9. In Paragraph 4, The above coupling adjustment unit is, A resonant part formed between the first resonant part, the third resonant part, the fourth resonant part, and the sixth resonant part, extending long from one side direction to the other side. Genome filter.

10. In Paragraph 4, The above notch adjustment unit is, Formed between the third resonant part and the sixth resonant part, and formed on the same line as the coupling control part on the surface of the dielectric block Genome filter.

11. In Paragraph 10, The above notch adjustment unit is, Opened at one end of the above-mentioned dielectric block and penetrating in a vertical direction, and carved to a certain depth from the open one end toward the coupling adjustment part Genome filter.

12. In Paragraph 4, On the opposite side facing the surface where the first resonant part and the fourth resonant part are located, the input terminal and the output terminal are formed at the same position as the first resonant part and the fourth resonant part. Genome filter.

13. In Paragraph 1 or Paragraph 4, The above input terminal and the above output terminal are, An input terminal groove and an output terminal groove are formed in the center, respectively, and a first region and a second region in an annular shape, in which a conductive coating layer is not formed, are formed at a certain distance from the input terminal groove and the output terminal groove, respectively. Genome filter.

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