Cavity filter and connector comprising same

Abstract

The present invention relates to a cavity filter, and more particularly, to a cavity filter including a radio frequency signal connection part provided at a predetermined distance from an external part provided with an electrode plate on one side surface, and a terminal part electrically connecting the electrode plate of the external part to the radio frequency signal connection part, absorbing assembly tolerance existing at the predetermined distance, and preventing interruption of current flow between the electrode plate and the radio frequency signal connection part, the terminal part absorbing assembly tolerance in a terminal insertion hole by elastically deforming a part between the electrode plate and the radio frequency signal connection part, thereby effectively absorbing assembly tolerance generated by assembly design, preventing interruption of current flow, and preventing performance reduction of an antenna device.

Description

Technical Field

[0001] The present invention relates to a cavity filter and a connector included therein, and more particularly to a cavity filter for a Massive MIMO antenna in which the connector connection structure between the filter and a printed circuit board is improved in consideration of assembly performance and size, and to a connector included therein. Background Art

[0002] The content described in this section merely provides background information related to the present embodiment and does not constitute prior art.

[0003] Multiple Input Multiple Output (MIMO) technology significantly increases data transmission capacity by using multiple antennas. It's a spatial multiplexing technology in which the transmitter transmits different data through each transmit antenna and then uses appropriate signal processing at the receiver to distinguish the transmitted data. Therefore, increasing the number of simultaneous transmit and receive antennas increases channel capacity, allowing for more data to be transmitted. For example, increasing the number of antennas to 10 ensures approximately 10 times the channel capacity compared to a current single-antenna system using the same frequency band.

[0004] 4G LTE-Advanced uses eight antennas, and in the current pre-5G phase, products with 64 or 128 antennas are under development. 5G is expected to utilize base stations with even more antennas, a technology known as massive antenna technology. Compared to the current two-dimensional cell operation, the introduction of massive antenna technology enables 3D beamforming, also known as Full-Dimensional Multiple-Input Multiple-Output (FD-MIMO).

[0005] In large-scale antenna technology, as the number of antenna components increases, the number of transmitters, receivers, and filters also increases. Furthermore, as of 2014, more than 200,000 base stations were installed in South Korea. This requires minimizing installation space, creating a cavity filter structure that allows for easy installation, and a radio frequency (RF) signal line connection structure that provides consistent filter characteristics even after individually tuned cavity filters are installed on antennas.

[0006] RF filters with a cavity structure are characterized by a resonator, such as a resonant rod, placed within a box-shaped structure formed by a metallic conductor. This allows only electromagnetic fields at their natural frequencies to exist, and through resonance, only ultra-high frequency frequencies pass through. This cavity structure offers low passband and insertion loss, and is conducive to high output, making it widely used as a filter in mobile communication base station antennas. Summary of the Invention

[0007] Technical issues

[0008] An object of the present invention is to provide a cavity filter and a connector included therein, which have a thinner and more compact structure and a radio frequency connector built into the body along the thickness direction.

[0009] Furthermore, an object of the present invention is to provide a cavity filter and a connector included therein, which have an assembly method that can minimize the cumulative amount of assembly tolerances generated when assembling multiple filters, and also have a radio frequency signal connection structure that is easy to install and maintains the frequency characteristics of the filters in a balanced manner.

[0010] Another object of the present invention is to provide a cavity filter and a connector included therein that allow relative movement and apply lateral tension in the case of a radio frequency pin separation type, thereby preventing signal loss.

[0011] Another object of the present invention is to provide a cavity filter and a connector included therein that can absorb assembly tolerances between two components to be electrically connected while maintaining a predetermined contact area, while also being extremely simple to install.

[0012] The technical objectives of the present invention are not limited to the technical objectives mentioned above, and ordinary technicians can clearly understand other technical objectives not mentioned through the following description.

[0013] Technical Solution

[0014] An embodiment of the cavity filter of the present invention for achieving the above-mentioned purpose includes: a radio frequency signal connection portion, which is arranged in a manner separated from an external component having an electrode pad provided on one side; and a terminal portion, which electrically connects the electrode pad of the above-mentioned external component with the above-mentioned radio frequency signal connection portion, absorbs the assembly tolerance existing in the above-mentioned specified distance, and prevents the interruption of the current flow between the above-mentioned electrode pad and the above-mentioned radio frequency signal connection portion, and the above-mentioned terminal portion absorbs the assembly tolerance in the terminal insertion port by elastically deforming a part located between the above-mentioned electrode pad and the above-mentioned radio frequency signal connection portion.

[0015] The terminal portion can be provided in the terminal insertion opening in the form of an odd number of single terminal portions.

[0016] Furthermore, the terminal portion may include: a side terminal, which contacts the electrode pad and is elastically deformed by the assembly force provided by the assembler; and another side terminal, which is connected to the side terminal and is fixed in a manner that does not move within the terminal insertion port, and the lower end is welded and fixed to the RF signal connection portion.

[0017] Furthermore, the terminal portion may include: a side terminal, which contacts the electrode pad and moves within the terminal insertion port through the assembly force provided by the assembler; and another side terminal, which is connected to the side terminal, elastically deformed by the assembly force provided by the side terminal, and welded and fixed to the RF signal connection portion.

[0018] Furthermore, the upper end portion of the terminal on one side may be in the shape of a “question mark” in punctuation marks.

[0019] Furthermore, the one side terminal and the other side terminal may be formed of a conductive material.

[0020] Furthermore, the present invention may further include a dielectric member that is inserted into the terminal insertion opening and disposed so as to surround a portion of the terminal portion.

[0021] Furthermore, the present invention may further include a reinforcing plate, which is inserted into the terminal insertion opening and used to fix a portion of the terminal portion.

[0022] Furthermore, a plurality of tension cutting portions extending in the up-down direction may be provided in one of the one side terminal and the other side terminal, the tension cutting portion may be provided in the one side terminal, and the upper end portion of the other side terminal may be accommodated inside the lower end portion of the one side terminal.

[0023] Furthermore, the terminal portion formed of the single terminal portion may be bent so as to be connected to a radio frequency signal connection portion provided on one side immediately below the terminal insertion port.

[0024] Furthermore, an elastic deformation portion that is elastically deformed by the assembling force may be formed on the terminal portion formed of the single terminal portion.

[0025] Furthermore, the elastic deformation portion may be in the shape of a partially cut ring.

[0026] Furthermore, the elastic deformation portion may be bent into a zigzag shape in the vertical direction.

[0027] In one embodiment of the connector of the present invention, the connector includes: a radio frequency signal connection portion, which is arranged in a manner separated from an external component on which an electrode pad is provided on one side; and a terminal portion, which electrically connects the electrode pad of the above-mentioned external component with the above-mentioned radio frequency signal connection portion, absorbs the assembly tolerance existing in the above-mentioned prescribed distance, and prevents the interruption of the current flow between the above-mentioned electrode pad and the above-mentioned radio frequency signal connection portion, and the above-mentioned terminal portion absorbs the assembly tolerance in the terminal insertion port by elastically deforming a part located between the above-mentioned electrode pad and the above-mentioned radio frequency signal connection portion.

[0028] Effects of the Invention

[0029] According to the present invention, the following effects are achieved: the RF connector is built into the body along the thickness direction, a more ultra-thin and compact structure can be designed, an assembly method can be provided that can minimize the cumulative amount of assembly tolerances generated when assembling multiple filters, an RF signal connection structure that is easy to install and maintains the frequency characteristics of the filter in a balanced manner can be designed, relative movement is allowed, and a stable connection is achieved by adding lateral tension, thereby preventing degradation of antenna performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 FIG. 1 is a diagram schematically illustrating a stacked structure of an exemplary massive antenna technology antenna.

[0031] Figure 2 A cross-sectional view showing a state where a cavity filter according to an embodiment of the present invention is stacked between an antenna board and a control board.

[0032] Figure 3 FIG. 1 is a perspective plan view showing the structure of a cavity filter according to an embodiment of the present invention as viewed from the bottom side.

[0033] Figure 4 It is an exploded perspective view showing a part of the structure of the cavity filter according to the first embodiment.

[0034] Figure 5 FIG. 4 is a cross-sectional view of a cavity filter according to a first embodiment of the present invention.

[0035] Figure 6 To show Figure 4 A three-dimensional view of the terminal portion in the structure.

[0036] Figure 7 FIG1 is an exploded perspective view showing a cavity filter according to a second embodiment of the present invention.

[0037] Figure 8 FIG. 1 is a cross-sectional view showing a cavity filter according to a second embodiment of the present invention.

[0038] Figure 9 To show Figure 7A three-dimensional view of the terminal portion in the structure.

[0039] Figure 10 FIG1 is an exploded perspective view showing a cavity filter according to a third embodiment of the present invention.

[0040] Figure 11 FIG. 1 is a cross-sectional view showing a cavity filter according to a third embodiment of the present invention.

[0041] Figure 12 To show Figure 10 A three-dimensional view of the terminal portion in the structure.

[0042] Figure 13 FIG1 is an exploded perspective view showing a cavity filter according to a fourth embodiment of the present invention.

[0043] Figure 14 FIG1 is a cross-sectional view showing a cavity filter according to a fourth embodiment of the present invention.

[0044] Figure 15 To show Figure 13 A three-dimensional view of the terminal portion in the structure.

[0045] Figure 16 FIG1 is an exploded perspective view showing a cavity filter according to a fifth embodiment of the present invention.

[0046] Figure 17 FIG1 is a cross-sectional view showing a cavity filter according to a fifth embodiment of the present invention.

[0047] Figure 18 To show Figure 16 A three-dimensional view of the terminal portion in the structure.

[0048] Figure 19 FIG1 is an exploded perspective view showing a cavity filter according to a sixth embodiment of the present invention.

[0049] Figure 20 FIG. 1 is a cross-sectional view showing a cavity filter according to a sixth embodiment of the present invention.

[0050] Figure 21 To show Figure 19 A three-dimensional view of the terminal portion in the structure.

[0051] Figure 22 FIG1 is an exploded perspective view showing a cavity filter according to a seventh embodiment of the present invention.

[0052] Figure 23 FIG1 is a cross-sectional view showing a cavity filter according to a seventh embodiment of the present invention.

[0053] Figure 24 To show Figure 22 A three-dimensional view of the terminal portion in the structure.

[0054] Figure 25 FIG1 is an exploded perspective view showing a cavity filter according to an eighth embodiment of the present invention.

[0055] Figure 26 FIG1 is a cross-sectional view showing a cavity filter according to an eighth embodiment of the present invention.

[0056] Figure 27 To show Figure 25 A three-dimensional view of the terminal portion in the structure.

[0057] Figure 28 FIG1 is an exploded perspective view showing a cavity filter according to a ninth embodiment of the present invention.

[0058] Figure 29 FIG1 is a cross-sectional view showing a cavity filter according to a ninth embodiment of the present invention.

[0059] Figure 30 To show Figure 28 A three-dimensional view of the terminal portion in the structure.

[0060] Figure 31 FIG1 is an exploded perspective view showing a cavity filter according to a tenth embodiment of the present invention.

[0061] Figure 32 FIG1 is a cross-sectional view showing a cavity filter according to a tenth embodiment of the present invention.

[0062] Figure 33 To show Figure 10 A three-dimensional view of the terminal portion in the structure.

[0063] Figure 34 FIG1 is an exploded perspective view showing a cavity filter according to an eleventh embodiment of the present invention.

[0064] Figure 35 FIG1 is a cross-sectional view showing a cavity filter according to an eleventh embodiment of the present invention.

[0065] Figure 36 To show Figure 34 A three-dimensional view of the terminal portion in the structure.

[0066] Figure 37 FIG1 is an exploded perspective view showing a cavity filter according to a twelfth embodiment of the present invention.

[0067] Figure 38 FIG1 is a cross-sectional view showing a cavity filter according to a twelfth embodiment of the present invention.

[0068] Figure 39 To show Figure 37 A three-dimensional view of the terminal portion in the structure.

[0069] Figure 40 FIG. 1 is a cross-sectional view showing an embodiment of a connector according to the present invention.

[0070] Description of Reference Signs

[0071] 20: Cavity filter 21: Filter body

[0072] 25: Terminal insertion port 27: Setting slot

[0073] 30: Filter module 31: RF signal connection part

[0074] 32: welding hole 40: terminal part

[0075] 50: Terminal on one side 560: Terminal on the other side

[0076] 170: Dielectric 571: Terminal through hole

[0077] 95: Reinforcement plate DETAILED DESCRIPTION

[0078] Below, some embodiments of the present invention are described in detail using illustrative drawings. It should be noted that, when assigning reference numerals to structural elements in the various drawings, identical structural elements, even if they appear in different drawings, are assigned the same reference numerals whenever possible. Furthermore, when describing the embodiments of the present invention, if detailed descriptions of related known structures or functions are deemed to hinder understanding of the embodiments of the present invention, such detailed descriptions will be omitted.

[0079] In the process of describing the structural elements of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. are used. Such terms are only used to distinguish one structural element from other structural elements, and the nature, order or sequence of the corresponding structural elements are not limited to the above terms. In addition, unless otherwise defined, the meanings of all terms used herein, including technical or scientific terms, are the same as those commonly understood by ordinary technicians in the technical field to which the present invention belongs. Terms with the same meaning as those defined in commonly used dictionaries should be interpreted as having the same meaning as in the context of the relevant technology, and should not be interpreted as idealized or overly formalized meanings unless clearly defined in this application.

[0080] Figure 1 FIG. 1 is a diagram schematically illustrating a stacked structure of an exemplary massive antenna technology antenna.

[0081] Figure 1 The diagram merely illustrates an exemplary external shape of the antenna device 1 incorporating an antenna assembly including a cavity filter according to an embodiment of the present invention, and does not limit the external shape when actually stacked.

[0082] The antenna device 1 includes a housing 2 having a heat sink formed therein and a radome 3 coupled to the housing 2. An antenna assembly may be built in between the housing 2 and the radome 3.

[0083] For example, the lower portion of the housing 2 is coupled to a power supply unit 4 (PSU) through a docking structure. The power supply unit 4 provides operating power for operating the communication components provided in the antenna assembly.

[0084] Typically, an antenna assembly has the following structure: An antenna board 5, with multiple antenna elements 6 arranged on the front, is backed by an antenna board. Cavity filters 7, equal in number to the number of antennas, are then placed on the backside, followed by a stack of printed circuit boards. Prior to packaging, the cavity filters 7 are carefully tuned and verified to ensure their individual frequency characteristics meet specifications. This tuning and verification process is preferably performed quickly in an environment with the same characteristics as the packaging process.

[0085] Figure 2 A cross-sectional view showing a state where a cavity filter according to an embodiment of the present invention is stacked between an antenna board and a control board.

[0086] Reference Figure 2 , the cavity filter 20 of one embodiment of the present invention can eliminate Figure 1 The conventional RF connector shown in , therefore, can provide an antenna structure that is easy to connect and has a lower height profile.

[0087] In addition, RF connection parts are provided on both side surfaces in the height direction and are connected to the cavity filter 20 of an embodiment of the present invention. Thus, even if vibration and thermal deformation occur in the antenna board 5 or the printed circuit board, the same RF connection is maintained, thereby preventing changes in the frequency characteristics.

[0088] Figure 3 FIG. 1 is a perspective plan view showing the structure of a cavity filter according to an embodiment of the present invention as viewed from the bottom side.

[0089] Reference Figure 3 The cavity filter 20 of one embodiment of the present invention comprises: a first housing (not marked with a reference numeral), comprising a radio frequency signal connection portion 31 (refer to Figure 4 The second housing (not marked with a reference numeral) covers the first housing; the terminal portion (refer to Figure 4The first housing includes a first housing (denoted by reference numeral 40), which is provided on both sides of the first housing in the longitudinal direction along the height direction of the cavity filter 20; and a filter module 30, which includes mounting holes 23 formed on both sides of the terminal portion 40. The terminal portion 40 extends through the terminal insertion port 25 formed in the first housing to electrically connect the external component 8 to the RF signal connection portion 31, for example, an electrode pad (not labeled) of the external component 8 formed by one of an antenna board and a printed circuit board is electrically connected to the RF signal connection portion 31.

[0090] In the terminal portion 40 as described above, its lower end in the accompanying drawings is supported by the RF signal connection portion 31. When the upper side is tightly combined with the external component 8 formed by one of the antenna board and the printed circuit board, it always forms a contact with the electrode pad formed on one side of the external component 8 such as the antenna board or the printed circuit board and can eliminate the assembly tolerance existing in the terminal insertion port 25.

[0091] In the cavity filter 20 of one embodiment of the present invention, the terminal portion 40 can be formed in an integral shape. As described above, preferably, when the terminal portion 40 is formed in an integral shape, the terminal portion 40 is formed from an elastomer that elastically deforms a portion of the terminal portion 40 when subjected to a predetermined assembly force to eliminate assembly tolerances. However, in an integral filter formed integrally with the terminal portion 40, the interruption of the current flow from one end to the other cannot be predicted, and therefore, there is no need to design an additional shape for additional lateral tension.

[0092] However, in one embodiment of the present invention, the terminal portion 40 does not necessarily need to be formed in an integral form, and can be formed into a separate filter that is separated into two parts. As described above, in the separate filter in which the terminal portion 40 is separated into two parts, an additional elastic component can be provided to eliminate assembly tolerances. The elastic component is provided in such a manner that, when the separated one-side terminal 50 and the other-side terminal are moved in an overlapping manner by means of the above-mentioned specified assembly force, the overall length is contracted, and when the assembly force is removed, the overall length is extended and restored. However, the terminal portion 40 can be separated into a one-side terminal 50 and the other-side terminal. When they are moved in an overlapping manner, there is a concern that the flow of electricity may be interrupted. Therefore, one of the one-side terminal 50 and the other-side terminal is provided by an elastic body, or an additional shape change is necessarily required to add lateral tension.

[0093] As described above, “lateral tension” is defined as a force that is transmitted from one terminal 50 to the other terminal in a direction different from the longitudinal direction in order to prevent interruption of the flow of electricity between the terminal 50 and the other terminal.

[0094] On the other hand, due to the characteristics of the antenna device, when the shape of the terminal portion 40 is changed, the impedance matching design in the terminal insertion port 25 must be carried out simultaneously. However, in the detailed description of the embodiment of the cavity filter 20 of the present invention, it is assumed that the impedance in the terminal insertion port 25 is in a matched state. Figure 4 In the structure of the embodiment of the cavity filter of the present invention described in the following drawings, the outer shape of the dielectric or reinforcing plate inserted into the terminal insertion port 25 together with the terminal portion 40 can be different depending on the impedance matching design.

[0095] Figure 4 1 is an exploded perspective view showing a portion of the structure of the cavity filter according to the first embodiment. Figure 5 1 is a cross-sectional view showing a cavity filter according to a first embodiment of the present invention. Figure 6 To show Figure 4 A three-dimensional view of the terminal portion in the structure.

[0096] like Figures 4 to 6 As shown, the cavity filter 20 of the first embodiment of the present invention includes: a radio frequency signal connection portion 31, which is arranged in a manner of being separated from a side surface of the external component 8 (especially, the electrode pad (not marked with a reference numeral)) by a specified distance; and a terminal portion 40, which electrically connects the electrode pad of the external component 8 to the radio frequency signal connection portion 31, thereby eliminating the assembly tolerance existing in the above-mentioned specified distance and preventing the interruption of the current flow between the electrode pad and the radio frequency signal connection portion.

[0097] Among them, such as Figure 2 As shown, the external component 8 can be a general term for an antenna board or an amplifier (PA) with multiple antenna devices configured on the other side, or a one-board printed circuit board formed by a digital board and a TX calibration (TX calibration) as one body.

[0098] The following, such as Figure 3 As shown, the external structure of the embodiment of the cavity filter 20 of the present invention is not divided into a first housing and a second housing, but is collectively referred to as a filter body 21 having a terminal insertion port 25 formed therein and is given the reference numeral 21 .

[0099] like Figures 4 and 5 As shown, the filter body 21 may form a hollow terminal insertion opening 25. The terminal insertion opening 25 may have different shapes according to the impedance matching design applicable to the various embodiments described below.

[0100] A gasket receiving portion 27 may be formed by groove processing on one side surface of the filter body 21, particularly on the side surface on which one terminal 50 of the terminal portion 40, described later, is provided. The gasket receiving portion 27 may be formed by groove processing so that its inner diameter is larger than the inner diameter of the terminal insertion opening 25, so that the outer edge of the star-shaped gasket 90, described later, is locked and prevented from escaping upward.

[0101] Meanwhile, the cavity filter 20 according to the first embodiment of the present invention may further include a star-shaped spacer 90 disposed and fixed on the spacer setting portion 27 .

[0102] The following description assumes that all subsequent embodiments of the present invention, including the first embodiment, also include the star-shaped spacer 90. Therefore, it should be understood that even if the star-shaped spacer 90 is not specifically mentioned in other embodiments other than the first embodiment, the star-shaped spacer 90 is still included.

[0103] In the star-shaped gasket 90, the annular fixed end 91 is fixed to the gasket setting portion 27, and may include a plurality of support ends 92 formed upwardly inclined from the fixed end 91 toward the center of the electrode pad side of the external component 8 composed of one of the antenna board and the printed circuit board.

[0104] In the star-shaped gasket 90 as described above, when an assembler assembles the cavity filter 20 of an embodiment of the present invention on the external component 8 formed by one of the antenna board and the printed circuit board, a plurality of support ends 92 support one side of the external component 8 formed by one of the antenna board and the printed circuit board and add elastic force to the connecting force of the unillustrated connecting component and the like passing through the above-mentioned assembly hole.

[0105] By adding the elastic force of the plurality of support ends 92 as described above, the contact area with the electrode pad of the terminal portion 40 can be maintained in a balanced manner.

[0106] Furthermore, the ring-shaped fixed end 91 of the star-shaped spacer 90 is provided so as to surround the outer side of the terminal portion 40 for transmitting an electrical signal, thereby functioning as a ground terminal.

[0107] Furthermore, the star-shaped spacer 90 is used to eliminate assembly tolerances existing between the outer component 8 formed by one of the antenna board and the printed circuit board in the embodiment of the cavity filter 20 of the present invention.

[0108] However, as will be described later, the assembly tolerance absorbed by the star-shaped gasket 90 exists within the terminal insertion opening 25 and is distinct from the assembly tolerance absorbed by the terminal portion 40. Specifically, the cavity filter of the embodiment of the present invention is designed such that the overall assembly tolerance is absorbed at least two locations by additional components during a single assembly process, thereby achieving a more stable connection.

[0109] like Figures 4 to 6 As shown, in the cavity filter 20 of the first embodiment of the present invention, the terminal portion 40 is arranged between the electrode pad of the external component 8 formed by one of the antenna board and the printed circuit board and the RF signal connection portion 31. If the assembly force of the assembler is provided, the shape of the whole or a part is deformed, and the assembly tolerance existing in the terminal insertion port 25 is absorbed.

[0110] In the cavity filter 20 of the first embodiment of the present invention, the terminal portion 40 is formed of a conductive material and is formed as a single terminal portion. As described above, the elastic deformation portion 54 that is deformed by the assembly force may be provided.

[0111] As a technical structure for absorbing the assembly tolerance existing in the above-mentioned terminal insertion port 25, more than two terminal parts 40 are provided. A structure can be adopted in which the terminals constituting the terminal part 40 (assuming that they are divided into two, such as one side terminal and the other side terminal) are overlapped and moved by the assembly force. For example, the cavity filter 20 of the first embodiment of the present invention can adopt a structure in which the terminal part 40 is provided with an odd number of single terminal parts and a part of it is deformed in shape by the assembly force.

[0112] When the terminal portion 40 is formed as a single terminal portion, unlike when the terminal portion is divided into two or more terminals, the problem of interruption of current flow cannot be predicted, so there is no need to provide an additional tension cutting portion for adding side tension between the two or more terminals.

[0113] However, as described above, when a single terminal portion is used as the terminal portion 40 , an elastically deformable portion 54 that is itself expandable and contractible in the longitudinal direction may be preferably provided to absorb assembly tolerances existing in the terminal insertion opening 25 .

[0114] like Figures 4 to 6 As shown, in the cavity filter 20 of the first embodiment of the present invention, a plurality of elastic deformation portions 54 may be formed on the terminal portion 40, and a portion of the outer peripheral surface of the plurality of elastic deformation portions 54 is chamfered, so that the distance between the upper end and the lower end of the terminal portion 40 is expanded or contracted by the assembly force transmitted along the up and down directions.

[0115] The plurality of elastically deformable portions 54 are formed by chamfering a portion of the outer circumferential surface of the terminal portion 40 at a predetermined height from one side toward the other. The plurality of elastically deformable portions 54 are formed in the vertical direction, with adjacent elastically deformable portions 54 chamfered in opposite directions. Furthermore, the chamfered portions of adjacent elastically deformable portions 54 may overlap at least partially.

[0116] Therefore, when the contact portion 53, which is the upper end portion of the terminal portion 40, is pressed by the assembly force provided by the assembler, the shape of the chamfered entrance portions of the elastic deformation portion 54 is deformed in such a manner as to approach each other like a stacked leaf spring and absorb the assembly tolerance existing in the terminal insertion port 25.

[0117] At the same time, if Figures 4 to 6 As shown, the cavity filter 20 of the first embodiment of the present invention may further include a reinforcing plate 95 . The reinforcing plate 95 is disposed in the terminal insertion opening 25 so as to allow the lower end portion 56 of the terminal portion 40 to pass through and be supported.

[0118] The reinforcing plate 95 may be formed with a terminal through-hole 97 through which the lower end portion 56 of the terminal portion 40 passes. The lower surface of the edge of the reinforcing plate 95 may be supported by the insertion port support end 28 provided in the terminal insertion port 25.

[0119] The reinforcing plate 95 as described above supports the lower end portion of the terminal portion 40 to limit the terminal portion 40 from excessively moving downward due to the assembly force provided by the assembler, thereby ultimately reinforcing the RF signal connection portion 31 .

[0120] As described above, the cavity filter 20 of the first embodiment of the present invention prevents interruption of current flow by forming the terminal portion 40 by a single terminal portion, and can expand and contract within the terminal insertion opening 25 by the assembly force, thereby eliminating assembly tolerances existing within the terminal insertion opening 25.

[0121] However, when the terminal portion 40 is capable of self-expansion within the terminal insertion opening 25, the structure is not limited to being formed by a single terminal portion. Depending on the embodiment, the terminal portion 40 can be divided into a terminal on one side that forms a contact with the electrode pad and a terminal on the other side that is fixed to the RF signal connection portion 31. As long as one of the two terminals can be self-expansion to a degree corresponding to the expected assembly tolerance, it can be formed in a manner. This will be explained in detail through the embodiments described below.

[0122] Figure 7 FIG2 is an exploded perspective view showing a portion of the structure of a cavity filter according to a second embodiment of the present invention. Figure 8 To show the direction Figure 7 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 9 To show Figure 7 A three-dimensional view of the terminal portion in the structure.

[0123] like Figures 7 to 9 As shown, compared with the cavity filter 20 of the first embodiment, the cavity filter 20 of the second embodiment of the present invention may include a terminal portion 150, and the terminal portion 150 may include: an arc contact portion 152, which is formed in an arc shape to form a contact with the electrode plate of the external component 8 formed by one of the antenna board and the printed circuit board; and a vertical connection portion 151, which extends from the arc contact portion 152 toward the bottom and is welded and fixed to the welding hole 32, and the welding hole 32 is formed in the plate portion extending from the RF signal connection portion 31.

[0124] The arc contact portion 152 may be formed in an arc shape, and the cross-sectional shape of the upper portion may be formed in the shape of a question mark (?) in a punctuation mark.

[0125] At the same time, a dielectric 170 for impedance matching design may be inserted into the terminal insertion port 25 , and a terminal through-hole 173 may be formed in the dielectric 170 so that the vertical connection portion 151 passes through.

[0126] In the cavity filter 20 of the second embodiment of the present invention having the structure as described above, when the assembly force of the assembler is applied to the terminal portion 150, the assembly tolerance existing in the terminal insertion port 25 can be absorbed by pressing the front end of the arc contact portion 152 corresponding to the elastic deformation portion downward and elastically deforming it.

[0127] Figure 10 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to a third embodiment of the present invention. Figure 11 To show the direction Figure 10 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 12 To show Figure 10 A three-dimensional view of the terminal portion in the structure.

[0128] like Figures 10 to 12 As shown, the cavity filter 20 of the third embodiment of the present invention may include a terminal portion 240. The terminal portion 240 may include: an arc-shaped contact portion 252 formed in an arc shape to form a contact with an electrode pad of an external component 8 formed by one of an antenna board and a printed circuit board; a connecting terminal portion 251 extending directly downward from the arc-shaped contact portion 252; and a curved connecting portion 253 extending from the lower end of the connecting terminal portion 251 toward an RF signal connecting portion (not labeled) provided directly below the terminal insertion port 25. In this case, it is preferable to eliminate structures such as additional plates extending horizontally from the RF signal connecting portion.

[0129] Among them, the arc contact portion 252 is formed in an arc shape, and the upper cross-sectional shape forms a "question mark (?)" shape in the punctuation mark. The connecting terminal portion 251 and the curved connecting portion 253 can be bent in such a way that the lower cross-sectional shape of the lower end portion except the arc contact portion 252 forms a roughly orthogonal curved English letter "L".

[0130] At the same time, a dielectric 270 for impedance matching design may be inserted into the terminal insertion port 25 , and a terminal through-hole 273 may be formed in the dielectric 270 through which the connection terminal portion 251 passes.

[0131] In the cavity filter 20 of the third embodiment of the present invention having the structure as described above, when the assembly force of the assembler is provided to the terminal portion 240, the assembly tolerance existing in the terminal insertion port 25 can be absorbed by pressing the front end of the arc contact portion 252 corresponding to the elastic deformation portion downward and elastically deforming it.

[0132] Figure 13 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to a fourth embodiment of the present invention. Figure 14 To show the direction Figure 13 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 15 To show Figure 13 A three-dimensional view of the terminal portion in the structure.

[0133] like Figures 13 to 15 As shown, the cavity filter 20 of the fourth embodiment of the present invention may include a terminal portion 340, and the terminal portion 340 may include: a vertical contact portion 352, which is vertically formed in the up and down directions to form a contact with the electrode pad of the external component 8 formed by one of the antenna board and the printed circuit board; a vertical connecting portion 351, which is formed as a whole with the vertical contact portion 352 and is welded and fixed to the welding hole 32, and the welding hole 32 is formed in a portion extending in a plate form as the RF signal connecting portion 31; and a bending portion 353, which is bent in a zigzag shape between the vertical contact portion 352 and the vertical connecting portion 351.

[0134] In the cavity filter 20 of the fourth embodiment of the present invention having the structure as described above, when the assembly force of the assembler is provided to the single terminal portion 340, the assembly tolerance existing in the terminal insertion port 25 can be absorbed by folding and elastically deforming the bent portion 353 corresponding to the elastic deformation portion in the up and down directions.

[0135] Except for this, the structure of the dielectric 370 in which the terminal through-hole 371 is formed and other structures are similar to or the same as those of the cavity filter 20 of the third embodiment, and therefore, detailed description will be omitted.

[0136] Figure 16 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to a fifth embodiment of the present invention. Figure 17 To show the direction Figure 16 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 18 To show Figure 16 A three-dimensional view of the terminal portion in the structure.

[0137] like Figures 16 to 18 As shown, the cavity filter 20 of the fifth embodiment of the present invention may include a terminal portion 440. The terminal portion 440 may include: a vertical contact portion 451 formed vertically in the vertical direction to form a contact with an electrode pad of an external component 8 formed by one of an antenna board and a printed circuit board; and a horizontal connection portion 453 extending from the lower end of the vertical contact portion 451 in a curved manner toward the RF signal connection portion 31 provided on one side directly below the terminal insertion port 25. In this case, it is preferable to eliminate structures such as a plate extending horizontally from the RF signal connection portion 31.

[0138] In the structure of the terminal portion 440 of the cavity filter 20 of the fifth embodiment of the present invention, the vertical contact portion 451 corresponds to the vertical contact portion 352 in the structure of the terminal portion 340 of the cavity filter 20 of the fourth embodiment, and the horizontal connection portion 453 of the cavity filter 20 of the fifth embodiment corresponds to the bent connection portion 253 in the structure of the terminal portion 240 of the cavity filter 20 of the third embodiment.

[0139] In the cavity filter 20 of the fifth embodiment of the present invention as described above, the horizontal connection portion 453 is fixed to the RF signal connection portion 31 in a cantilever beam shape. The pressing force of the vertical contact portion 451 acts as a torque through the assembly force of the assembler, and the horizontal connection portion 453 elastically deforms downwardly, thereby absorbing assembly tolerances within the terminal insertion opening 25. Therefore, in the cavity filter 20 of the fifth embodiment, the terminal portion 440 can absorb assembly tolerances by elastically deforming the entire terminal portion 440 except for the fixing points of the horizontal connection portion 453, rather than by forming an additional elastic deformation portion in a visible manner.

[0140] Figure 19 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to a sixth embodiment of the present invention. Figure 20 To show the direction Figure 19 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 21 To show Figure 19 A three-dimensional view of the terminal portion in the structure.

[0141] like Figures 19 to 21As shown, the cavity filter 20 of the sixth embodiment of the present invention may include a terminal portion 540, and the terminal portion 540 may include: a one-side terminal 550, which is elastically deformed by the assembly force provided by the assembler, and is arranged on the upper side of the terminal insertion port 25, and can form a contact with the electrode plate formed by the external component 8 formed by one of the antenna board and the printed circuit board; and the other-side terminal 560, which is arranged on the lower side of the terminal insertion port 25 and is welded and fixed to the welding hole 32, and the above-mentioned welding hole 32 is formed on the plate of the RF signal connection portion 31.

[0142] The one-side terminal 550 may include: a contact portion 551 formed in an arc shape to make the upper side contact the electrode pad; and a terminal fixing portion 552 extending horizontally from the lower end of the contact portion 551 and fixed to the other-side terminal 560.

[0143] At the same time, a fixing groove 564 for inserting the terminal fixing portion 552 of one side terminal 550 can be formed at the upper end portion 561 of the other side terminal 560, and the lower end portion 562 of the other side terminal 560 can be inserted into the welding hole 32 formed on the plate of the RF signal connection portion 31 and welded and fixed.

[0144] Furthermore, a retaining rib 563 for preventing excessive elastic deformation of the one-side terminal 550 may be provided protruding outward from an outer peripheral surface corresponding to the lower side of the fixing groove 564 of the other-side terminal 560 .

[0145] In the terminal 550 on one side, the terminal fixing portion 552 is fixed to the fixing groove 564 of the terminal 560 on the other side. When no assembly force is provided by the assembler, the front end portion of the contact portion 551 is spaced a specified distance upward relative to the rib surface of the stop rib 563, and is elastically deformed and stopped at the stop rib 563 when the assembly force is received by the assembler.

[0146] Therefore, preferably, when no assembly force is provided by the assembler, the spacing distance between the rib surface of the stop rib 563 and the front end portion of the contact portion 551 is designed to be long enough to at least absorb all assembly tolerances present in the terminal insertion port 25.

[0147] On the other hand, Figure 19 and Figure 20 As shown, the cavity filter 20 of the sixth embodiment of the present invention may further include a dielectric 570 . The dielectric 570 is disposed in the terminal insertion opening 25 and has a terminal through-hole 571 formed therein for the other terminal 560 to pass through and be fixed thereto.

[0148] In the cavity filter 20 having the sixth embodiment of the present invention as described above, if the assembly force of the assembler is provided, the one side terminal 550 can absorb the assembly tolerance existing in the terminal insertion port 25 by elastically deforming the contact portion 551 formed in a circular arc shape as an elastic deformation portion.

[0149] Furthermore, both the one-side terminal 550 and the other-side terminal 560 are formed of a conductive material, and the terminal fixing portion 552 of the one-side terminal 550 is firmly fixed to the fixing groove 564 of the other-side terminal 560 , without the need for an additional tension cutting portion for adding side tension.

[0150] Figure 22 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to a seventh embodiment of the present invention. Figure 23 To show the direction Figure 22 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 24 To show Figure 22 A three-dimensional view of the terminal portion in the structure.

[0151] like Figures 22 to 24 As shown, the cavity filter 20 of the seventh embodiment of the present invention may include a terminal portion 640, and the terminal portion 640 may include: a side terminal 650, which is elastically deformed by the assembly force provided by the assembler, and is arranged on the upper side of the terminal insertion port 25, and can form a contact with the electrode plate formed by the external component 8 formed by one of the antenna board and the printed circuit board; and the other side terminal 660, which is arranged on the lower side of the terminal insertion port 25 and is welded and fixed to the welding hole 32, and the above-mentioned welding hole 32 is formed on the plate of the RF signal connection part 31.

[0152] Compared to the cavity filter 20 of the sixth embodiment, in the cavity filter 20 of the seventh embodiment of the present invention, the terminal fixing portion 652 of the one-side terminal 650 can be closely fixed to the upper surface of the other-side terminal 660. The one-side terminal 650 and the other-side terminal 660 can be fixed by welding or by any other means such as using other fastening components.

[0153] Furthermore, compared to the cavity filter 20 of the sixth embodiment, in the cavity filter 20 of the seventh embodiment of the present invention, the retaining rib 663 can be formed by a height difference surface formed by cutting a portion of the upper surface 661 of the other terminal 660 downward.

[0154] The dielectric 670 inserted to achieve impedance matching in the terminal insertion port 25 and other structures are similar to or the same as those in the cavity filter 20 of the sixth embodiment, and detailed description thereof will be omitted.

[0155] Figure 25FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to an eighth embodiment of the present invention. Figure 26 For Figure 25 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 27 To show Figure 25 A three-dimensional view of the terminal portion in the structure.

[0156] like Figures 25 to 27 As shown, the cavity filter 20 of the eighth embodiment of the present invention may include a terminal portion 740, and the terminal portion 740 may include: a one-side terminal 750, which is arranged on the upper side of the terminal insertion port 25 and can form a contact with the electrode pad formed by the external component 8 formed by one of the antenna board and the printed circuit board; and an other-side terminal 760, which is arranged on the lower side of the terminal insertion port 25 and can be supported by the upper side of the RF signal connection portion 31 and can be elastically deformed by the assembly force provided by the assembler.

[0157] Meanwhile, the cavity filter 20 of the eighth embodiment of the present invention may further include a reinforcing plate 795 . The reinforcing plate 795 is disposed in the terminal insertion opening 25 and has a terminal through-hole 797 formed therein for allowing one terminal 750 to pass through.

[0158] In the cavity filter 20 according to the eighth embodiment of the present invention, the terminal portion 740 is guided by the terminal through-hole 797 formed in the reinforcing plate 795 and can move in the vertical direction in the drawing by the assembly force provided by the assembler.

[0159] Specifically, one-side terminal 750 includes a contact portion 753 that forms a predetermined contact surface. This contact surface forms contact with the electrode pad of external component 8, formed from either the antenna board or the printed circuit board. The contact surface can be moved vertically through terminal through-hole 797 of reinforcing plate 795 by the assembly force provided by the assembler. Furthermore, anti-detachment ribs 752 can be formed on the outer peripheral surface of one-side terminal 750. These anti-detachment ribs 752 engage the lower edge of terminal through-hole 797 of reinforcing plate 795 to prevent unintended outward detachment.

[0160] On the other hand, the other side terminal 760 may include: a fixed end 762 fixed to the lower end surface of the one side terminal 750; and an elastic support portion 761 extending downward in an arc shape from one side of the fixed end 762 and elastically supported on the top of the RF signal connecting portion 31.

[0161] If the assembly force of the assembler is provided, the front end of the elastic support part 761 is elastically deformed by the action of pressing one side terminal 750 downward, and the rib surface of the stop rib 755 formed by cutting with a height difference at the lower end of one side terminal 750 can be used as the limit of elastic deformation.

[0162] Compared to the cavity filter 20 of the seventh embodiment, the cavity filter 20 of the eighth embodiment of the present invention, as described above, has one-side terminal 750 and the other-side terminal 760 in an inverted configuration. Furthermore, the dielectric 770 of the cavity filter 20 of the eighth embodiment can be directly replaced by the reinforcing plate 95 of the cavity filter 20 of the first embodiment within the scope of impedance conformity design.

[0163] The remaining structures are similar or identical to those of the cavity filter 20 of the seventh embodiment, and detailed description thereof will be omitted.

[0164] Figure 28 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to a ninth embodiment of the present invention. Figure 29 To show the direction Figure 28 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 30 To show Figure 28 A three-dimensional view of the terminal portion in the structure.

[0165] like Figures 28 to 30 As shown, the cavity filter 20 of the ninth embodiment of the present invention may include a terminal portion 840, and the terminal portion 840 may include: a one-side terminal 850, which is arranged on the upper side of the terminal insertion port 25 and can form a contact with the electrode pad formed by the external component 8 formed in one of the antenna board and the printed circuit board; and an other-side terminal 860, which is arranged on the lower side of the terminal insertion port 25, fixed on the top of the RF signal connection portion 31, and elastically deformed by the assembly force provided by the assembler.

[0166] Among them, the other side terminal 860 in the terminal part 840 may include: a fixed end 861, fixed on the top of the RF signal connecting part 31; and an elastic support part 862, formed in an arc shape to elastically support the lower surface of the one side terminal 850, thereby elastically deforming.

[0167] Unlike the cavity filter 20 of the eighth embodiment described above, in which the elastic support portion 762 of the other side terminal 760 supports the RF signal connection portion 31, in the cavity filter 20 of the ninth embodiment of the present invention, the elastic support portion 862 of the other side terminal 860 can be supported on the lower end of the one side terminal 850.

[0168] Except for this, the reinforcing plate 895 having the terminal through-hole 897 disposed in the terminal insertion port 25 is similar to or identical to the structure of the cavity filter 20 of the ninth embodiment, and detailed description thereof will be omitted.

[0169] Figure 31 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to a tenth embodiment of the present invention. Figure 32 To show the direction Figure 31 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 33 To show Figure 31 A three-dimensional view of the terminal portion in the structure.

[0170] like Figures 31 to 33 As shown, the cavity filter 20 of the tenth embodiment of the present invention may include: a side terminal 950, which is arranged on the upper side of the terminal insertion port 25 and is fixed to a side surface of an electrode pad formed by an external component 8 formed by an antenna board and a printed circuit board; and an other side terminal 960, the upper end portion 961 of which is fixed in the terminal insertion port 25, and the lower end portion 962 is welded and fixed to the welding hole 32, and the above-mentioned welding hole 32 is formed on the plate of the RF signal connection portion 31.

[0171] Among them, one side terminal 950 may include: a fixed end 952, which is fixed to one side of the above-mentioned electrode plate in a manner of always forming a contact with the electrode plate of the external component 8 formed by one of the antenna board and the printed circuit board; and an elastic support portion 951, which extends downward in an arc shape from one end of the fixed end 952 and is elastically supported on the upper end portion 961 of the other side terminal 960 to be elastically deformed by the assembly force provided by the assembler.

[0172] On the other hand, Figure 32 As shown, in the other-side terminal 960, the upper end portion 961 is configured to pass through the terminal through-hole 997 of the reinforcing plate 995 provided in the terminal insertion port 25, and the lower end portion 962 can be welded and fixed to the welding hole 32 formed in the plate of the RF signal connection portion 31. At the same time, an anti-separation rib 963 can be formed on the outer peripheral surface of the other-side terminal 960. The anti-separation rib 963 is locked to the lower edge side of the terminal through-hole 997 of the reinforcing plate 995 to prevent the other-side terminal 960 from escaping toward the outside of the terminal insertion port 25.

[0173] The terminal portion 940 of the cavity filter 20 according to the tenth embodiment of the present invention having the above-described structure is a form in which the terminal portion 840 of the cavity filter 20 according to the ninth embodiment is inverted in the vertical direction.

[0174] That is, in the cavity filter 20 of the tenth embodiment of the present invention, the fixed end 952 of the terminal 950 on one side of the terminal portion 940 can be tightly fixed to the electrode pad formed on one side of the external component 8 formed by one of the antenna board and the printed circuit board.

[0175] Among them, such as Figure 32As shown, the terminal 950 on one side and the terminal 960 on the other side are physically separated from each other. If the assembly force of the assembler is provided, the elastic support part 951 of the terminal 950 on one side acts as an elastic deformation part that generates elastic deformation to continuously support the upper surface of the terminal 960 on the other side, absorb the assembly tolerance in the terminal insertion port 25, and prevent the interruption of the current flow.

[0176] Figure 34 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to an eleventh embodiment of the present invention. Figure 35 To show the direction Figure 34 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 36 To show Figure 34 A three-dimensional view of the terminal portion in the structure.

[0177] like Figures 34 to 36 As shown, the cavity filter 20 of the eleventh embodiment of the present invention may include a terminal portion 1040, which may include: a contact portion 1051, which is arranged in the terminal insertion port 25 and can form a contact with an electrode pad formed on a side surface of an external component 8 formed by one of an antenna board and a printed circuit board arranged on the upper side; a horizontal connecting portion 1052, which bends and extends from the lower end of the contact portion 1051 toward the RF signal connecting portion 31 provided on the side directly below the terminal insertion port 25; and an elastic terminal portion 1053, which is arranged between the contact portion 1051 and the horizontal connecting portion 1052 and bends and connects in a zigzag shape along the horizontal direction. In this case, preferably, there is no need to provide an additional structure such as a plate extending horizontally from the RF signal connecting portion 31.

[0178] Furthermore, the cavity filter 20 of the eleventh embodiment of the present invention may further include a dielectric 1060 , which is disposed in the terminal insertion opening 25 to surround the remaining portion of the terminal portion 1040 except for the upper end portion of the contact portion 1051 and a portion of the horizontal connecting portion 1052 .

[0179] A contact portion side through hole 1065 can be formed on the upper side 1061 of the dielectric 1060 so that the upper end portion of the contact portion 1051 can protrude upward through the contact portion, and a connection portion side through hole 1064 can be formed on the outer peripheral surface of the lower side 1062 of the dielectric 1060 so that the horizontal connection portion 1052 can pass through the horizontal direction.

[0180] At the same time, a guide rod 1063 is provided horizontally connected to the contact portion-side through-hole 1065 of dielectric 1060. Guide rod 1063 extends through a guide slit 1054 formed vertically and longitudinally at the upper end portion where contact portion 1051 is formed. When elastic terminal portion 1053 is elastically deformed by the assembly force applied by the assembler, it stably guides the vertical movement of contact portion 1051. The elastic terminal portion 1053 functions as an elastically deformable portion that absorbs assembly tolerances within terminal insertion opening 25 by the assembly force applied by the assembler.

[0181] Figure 37 FIG1 is an exploded perspective view showing a portion of the structure of a cavity filter according to a twelfth embodiment of the present invention. Figure 38 To show the direction Figure 37 A cross-sectional view of a state in which a terminal portion is inserted into a terminal insertion port in a structure, Figure 39 To show Figure 37 A three-dimensional view of the terminal portion in the structure.

[0182] like Figures 37 to 39 As shown, the cavity filter 20 of the twelfth embodiment of the present invention may include a terminal portion 1140, and the terminal portion 1140 may include: a side terminal 1150, which is arranged on the upper side of the terminal insertion port 25 and can form a contact with an electrode plate formed on a side surface of an external component 8 formed by one of an antenna board and a printed circuit board; and an other side terminal 1160, which is arranged on the lower side of the terminal insertion port 25 and is welded and fixed to a welding hole 32, and the welding hole 32 is formed on the plate of the RF signal connection portion 31.

[0183] Among them, similar to the cavity filter 20 of the sixth embodiment described above, one side terminal 1150 may include: a contact portion 1151 formed in an arc shape to make the upper side contact with the electrode plate; and a terminal fixing portion 1152, extending vertically from the lower end of the contact portion 1151 and fixed to the other side terminal 1160.

[0184] On the other hand, the difference between the cavity filter 20 of the twelfth embodiment of the present invention and the cavity filter 20 of the sixth embodiment is that a plurality of terminal cutouts 1153 are formed to divide the contact portion 1151 of one terminal 1150 into at least three sections. Figure 39 As shown, two terminal cutouts 1153 are formed on the contact portion 1151 of the terminal 1150 on one side to divide the terminal into three strips, thereby further increasing the possibility of elastic deformation caused by the assembly force provided by the assembler.

[0185] At the same time, the terminal fixing portion 1152 of the terminal 1150 on one side can be fixed to the side surface of the upper end portion 1161 of the terminal 1160 on the other side by one of a variety of methods such as welding or fastening by a fastening component.

[0186] Furthermore, a retaining rib 1163 may be provided on the outer peripheral surface of the other-side terminal 1160 in a manner protruding outward to prevent the contact portion 1151 in the one-side terminal 1150 from excessive elastic deformation.

[0187] On the other hand, the dielectric 1170 inserted to achieve impedance matching in the terminal insertion port 25 and other structures are similar to or the same as those in the cavity filter 20 of the sixth embodiment, and will be described in detail using the sixth embodiment instead.

[0188] Figure 40 FIG. 1 is a cross-sectional view showing an embodiment of a connector according to the present invention.

[0189] The various embodiments of the cavity filter of the present invention described above are limited to the following form, that is, manufactured as a module and attached to one side of an external component 8 such as an antenna board or a printed circuit board. However, the embodiments of the present invention are not limited to this. Figure 40 As shown, regardless of being manufactured into a module form, it can also have the following modified implementation mode, that is, it can be realized as the following connector 1' including a terminal portion 40, the above-mentioned terminal portion 40 is arranged between the connecting component and the electrode plate to realize electrical connection with another connecting component 31', and the above-mentioned electrode plate is arranged on one side of the external component 8.

[0190] The above description is merely an illustrative description of the technical concept of the present invention, and anyone skilled in the art in the art can make various modifications and variations without departing from the essential characteristics of the present invention.

[0191] Therefore, the embodiments disclosed in the present invention are intended to illustrate the technical concept of the present invention, rather than to limit the technical concept of the present invention. The scope of the technical concept of the present invention is not limited to the above embodiments. The scope of protection of the present invention must be interpreted in accordance with the scope of protection of the invention claims. All technical concepts within the scope equivalent to the scope of protection of the invention claims are included in the scope of rights of the present invention.

[0192] Industrial applicability

[0193] The present invention provides the following cavity filter and the connector included therein: the radio frequency connector is built into the body along the thickness direction, and a more ultra-thin and compact structure can be designed. It has an assembly method that can minimize the cumulative amount of assembly tolerances generated when assembling multiple filters. It can design a radio frequency signal connection structure that is easy to install and maintains the frequency characteristics of the filter in a balanced manner. It allows relative movement and is stably connected by adding side tension, thereby preventing the degradation of antenna performance.

Claims

1. A cavity filter, characterized in that: include: The radio frequency signal connection portion is provided at a predetermined distance from an external component having an electrode pad provided on one side thereof; and The terminal portion electrically connects the electrode pad of the external component to the RF signal connection portion, absorbs the assembly tolerance existing in the predetermined distance, and prevents interruption of the current flow between the electrode pad and the RF signal connection portion. The terminal portion absorbs the assembly tolerance in the terminal insertion port by elastically deforming a portion located between the electrode pad and the RF signal connection portion. The terminal portion includes a side terminal, namely the first terminal, which contacts the electrode plate and is elastically deformed by the assembly force provided by the assembler. A gasket setting portion (27) is formed by groove processing on the side where the above-mentioned one terminal is set, that is, the side where the first terminal is set. A star-shaped gasket (90) is fixedly provided on the gasket setting portion (27).

2. The cavity filter according to claim 1, wherein The gasket setting portion (27) can be formed by groove processing in a manner that the inner diameter is larger than the inner diameter of the terminal insertion port (25), so as to prevent the star-shaped gasket (90) from escaping toward the upper side by locking the outer edge portion.

3. The cavity filter according to claim 1, wherein The star-shaped gasket (90) comprises: A fixed end (91) is annular and fixed to the gasket setting portion (27); and A plurality of support ends (92) are inclined upward from the fixed end (91) toward the center of the electrode plate side of the external component.

4. The cavity filter according to claim 1, wherein: The terminal portion is provided in the terminal insertion opening in the form of an odd number of single terminal portions.

5. The cavity filter according to claim 1, wherein: The terminal portion further includes another side terminal connected to the one side terminal and fixed in a manner not to move within the terminal insertion port, with a lower end portion being welded and fixed to the RF signal connection portion.

6. The cavity filter according to claim 5, characterized in that The one side terminal and the other side terminal are formed of a conductive material.

7. The cavity filter according to claim 1, wherein: It also includes a reinforcing plate, which is inserted into the terminal insertion port and is used to fix a part of the terminal part.

8. The cavity filter according to claim 5, wherein: One of the one side terminal and the other side terminal is provided with a plurality of tension cut portions extending in the vertical direction. The tension cutter is provided on the one terminal, and the upper end of the other terminal is accommodated in the lower end of the one terminal.

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