Cavity filter and connector included therein

Abstract

The present invention relates to a cavity filter, and in particular, to a cavity filter comprising: a radio frequency signal connection portion, which is arranged at a specified distance from an external component having an electrode pad on one side thereof; and a terminal portion, which electrically connects the electrode pad of the external component to the radio frequency signal connection portion, absorbs assembly tolerances existing in the specified distance, and prevents interruption of current flow between the electrode pad and the radio frequency signal connection portion, wherein the terminal portion is separated into a side terminal forming a contact with the electrode pad and an other side terminal connected to the radio frequency signal connection portion, and absorbs the assembly tolerances existing in a terminal insertion port having the terminal portion by an elastic component arranged between the one side terminal and the other side terminal, thereby providing an advantage of preventing performance degradation of an antenna device by preventing interruption of current flow.

Description

[0001] The present invention is a divisional application of the patent with application number 201980039611.8, application date June 12, 2019, and invention name “Cavity filter and connector included therein”. Technical Field

[0002] 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

[0003] The content described in this section merely provides background information related to the present embodiment and does not constitute prior art.

[0004] 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.

[0005] 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).

[0006] 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.

[0007] 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

[0008] Technical issues

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] Technical Solution

[0015] 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 to be separated from an external component on one side of which an electrode pad is provided; 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 is separated into a side terminal forming a contact with the above-mentioned electrode pad and the other side terminal connected to the above-mentioned radio frequency signal connection portion, and the above-mentioned assembly tolerance existing in the terminal insertion port where the above-mentioned terminal portion is provided is absorbed by an elastic component arranged between the above-mentioned one side terminal and the above-mentioned other side terminal.

[0016] The present invention may further include a dielectric member inserted into the terminal insertion opening so as to surround the outer side of the terminal portion.

[0017] Furthermore, the one side terminal in the terminal portion can be configured in a manner that allows it to be moved within the terminal insertion port together with the dielectric through an assembly force provided by an assembler, the other side terminal in the terminal portion can be connected to the RF signal connection portion, and one of the one side terminal and the other side terminal can be accommodated in a manner that overlaps with the other by a specified length.

[0018] Furthermore, one of the one side terminal and the other side terminal may be provided with a plurality of tension cut portions extending in the vertical direction.

[0019] Furthermore, the tension cut portion may be provided on the one terminal, and the upper end portion of the other terminal may be accommodated inside the lower end portion of the one terminal.

[0020] Furthermore, the tension cut portion may be provided on the other terminal, and the lower end portion of the one terminal may be accommodated inside the upper end portion of the other terminal.

[0021] Furthermore, the dielectric member may support an outer peripheral surface of the one-side terminal or the other-side terminal on which the plurality of tension cutout portions are formed.

[0022] Furthermore, the present invention may further include a reinforcing plate for reinforcing the radio frequency signal connecting portion provided in the terminal insertion port.

[0023] Furthermore, the reinforcing plate may be a part of the filter body and may be fixed to an insertion port support end formed to protrude toward the terminal insertion port.

[0024] Furthermore, a terminal through-hole for passing the terminal portion may be formed in the reinforcing plate, and a locking end may be formed in one of the one side terminal and the other side terminal passing through the terminal through-hole. The diameter of the locking end may be larger than the diameter of the terminal through-hole so as to be locked to the reinforcing plate.

[0025] Furthermore, an elastic ring installation groove may be formed on the outer side surface of the other terminal, and at least one elastic ring may be installed in the elastic ring installation groove.

[0026] Furthermore, two or more elastic rings may be stacked and installed in the elastic ring installation groove in the vertical direction.

[0027] Furthermore, the elastic member may be composed of an elastic spring that elastically supports the one-side terminal housed inside the other-side terminal.

[0028] Furthermore, the elastic component may be formed by a rod spring comprising: a support ring portion supported by the upper end surface of the other side terminal; and a pair of support rods protruding and extending upwardly and obliquely in directions intersecting with each other from the support ring portion to support the one side terminal.

[0029] Furthermore, the other terminal in the terminal portion may be fixed to a welding hole by welding, and the welding hole may be formed in a plate portion extending from the RF signal connecting portion.

[0030] 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 of being 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 is separated into a side terminal forming a contact with the above-mentioned electrode pad and the other side terminal connected to the above-mentioned radio frequency signal connection portion, and the above-mentioned assembly tolerance existing in the terminal insertion port where the above-mentioned terminal portion is provided is absorbed by an elastic component arranged between the above-mentioned one side terminal and the above-mentioned other side terminal.

[0031] Effects of the Invention

[0032] 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

[0033] Figure 1 FIG. 1 is a diagram schematically illustrating a stacked structure of an exemplary massive antenna technology antenna.

[0034] 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.

[0035] 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.

[0036] Figure 4 It is an exploded perspective view showing a part of the structure of the cavity filter according to the first embodiment.

[0037] Figure 5 FIG1 is a cross-sectional view showing a cavity filter according to a first embodiment of the present invention.

[0038] Figure 6 To show Figure 4 A three-dimensional view of the terminal portion in the structure.

[0039] Figure 7 FIG1 is an exploded perspective view showing a cavity filter according to a second embodiment of the present invention.

[0040] Figure 8 FIG. 1 is a cross-sectional view showing a cavity filter according to a second embodiment of the present invention.

[0041] Figure 9 To show Figure 7 A three-dimensional view of the terminal portion in the structure.

[0042] Figure 10 FIG1 is an exploded perspective view showing a cavity filter according to a third embodiment of the present invention.

[0043] Figure 11 FIG. 1 is a cross-sectional view showing a cavity filter according to a third embodiment of the present invention.

[0044] Figure 12 To show Figure 10 A three-dimensional view of the terminal portion in the structure.

[0045] Figure 13 FIG1 is an exploded perspective view showing a cavity filter according to a fourth embodiment of the present invention.

[0046] Figure 14 FIG1 is a cross-sectional view showing a cavity filter according to a fourth embodiment of the present invention.

[0047] Figure 15 To show Figure 13 A three-dimensional view of the terminal portion in the structure.

[0048] Figure 16 FIG1 is an exploded perspective view showing a cavity filter according to a fifth embodiment of the present invention.

[0049] Figure 17 FIG1 is a cross-sectional view showing a cavity filter according to a fifth embodiment of the present invention.

[0050] Figure 18 To show Figure 16 A three-dimensional view of the terminal portion in the structure.

[0051] Figure 19 FIG1 is an exploded perspective view showing a cavity filter according to a sixth embodiment of the present invention.

[0052] Figure 20 FIG1 is a cross-sectional view showing a cavity filter according to a sixth embodiment of the present invention.

[0053] Figure 21 To show Figure 19 A three-dimensional view of the terminal portion in the structure.

[0054] Figure 22 FIG1 is an exploded perspective view showing a cavity filter according to a seventh embodiment of the present invention.

[0055] Figure 23 FIG1 is a cross-sectional view showing a cavity filter according to a seventh embodiment of the present invention.

[0056] Figure 24 To show Figure 22 A three-dimensional view of the terminal portion in the structure.

[0057] Figure 25 FIG1 is an exploded perspective view showing a cavity filter according to an eighth embodiment of the present invention.

[0058] Figure 26 FIG1 is a cross-sectional view showing a cavity filter according to an eighth embodiment of the present invention.

[0059] Figure 27 To show Figure 25 A three-dimensional view of the terminal portion in the structure.

[0060] Figure 28 FIG. 1 is a cross-sectional view showing an embodiment of a connector according to the present invention.

[0061] Description of Reference Signs

[0062] 20: Cavity filter 21: Filter body

[0063] 25: Terminal insertion port 27: Setting slot

[0064] 30: Filter module 31: RF signal connection part

[0065] 32: welding hole 40: terminal part

[0066] 50: Terminal on one side 60: Terminal on the other side

[0067] 70: Dielectric 71: Terminal through hole

[0068] 80: Elastic component 95: Reinforcement plate DETAILED DESCRIPTION

[0069] 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.

[0070] 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.

[0071] Figure 1 FIG. 1 is a diagram schematically illustrating a stacked structure of an exemplary massive antenna technology antenna.

[0072] Figure 1 The diagram merely shows an exemplary outer shape of the antenna device 1 incorporating an antenna assembly including the cavity filter 7 according to an embodiment of the present invention, and does not limit the outer shape when actually stacked.

[0073] 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.

[0074] 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.

[0075] Typically, an antenna assembly has the following structure: An antenna board 5, with multiple antennas 6 arranged on its front, is backed by an antenna board. Cavity filters 7 (equal to the number of antennas) are then placed on the backside of the board, followed by a stack of printed circuit boards 8. Prior to installation, cavity filters 20 and 7 are carefully tuned and verified to ensure that each has frequency characteristics that meet specifications. This tuning and verification process is preferably performed quickly in an environment with the same characteristics as the installation.

[0076] 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.

[0077] Reference Figure 2 , which can be excluded Figure 1 The conventional RF connector shown in Figure 1 90 ), thus, an antenna structure that is easy to connect and has a lower height profile can be provided.

[0078] 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 the external component 8 formed by one of the antenna board and the printed circuit board vibrates and undergoes thermal deformation, the same RF connection is maintained, thereby preventing changes in the frequency characteristics.

[0079] 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.

[0080] 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 4 The following figures are numerals with a reference number of "40" in the unit of 10), and are provided along the height direction of the cavity filter 20 on both sides of the length direction of the first housing; and the filter module 30 (at Figure 4 In the following figures, the reference numerals ("30" is added to the reference numerals in units of 100 for distinguishing between the embodiments) include mounting holes formed on both sides of the terminal portion 40. The terminal portion 40 passes 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, the electrode pad of the external component 8 formed by one of the antenna board and the printed circuit board is electrically connected to the RF signal connection portion 31.

[0081] The cavity filter 20 of the present invention can be implemented in various embodiments as described below, depending on the structure of the terminal portion 40 (integrated or separate), the shape for applying the side tension described below, and the specific structure for absorbing assembly tolerance.

[0082] In more detail, it can be distinguished into an integrated filter in which the terminal portion 40 is formed as a whole from one end connected to (or in contact with) the electrode pad of the external component 8 formed by one of the antenna board and the printed circuit board to the other end connected to (or in contact with) the RF signal connection portion 31, and a separate filter in which the terminal portion 40 is separated at a position between one end and the other end of the terminal portion 40.

[0083] In the case of an integrated filter, the terminal portion 40 is formed of an elastic body that elastically deforms a portion of the terminal portion 40 when subjected to a predetermined assembly force to eliminate assembly tolerances. However, in an integrated filter formed integrally with the terminal portion 40, the interruption of the flow of electricity from one end to the other cannot be predicted, so there is no need to design an additional shape to apply additional lateral tension.

[0084] In contrast, in the case of a separate filter, an additional elastic member 80 can be provided to eliminate assembly tolerances. The elastic member 80 is configured such that when the separated one-side terminal 50 and the other-side terminal 60 are moved in an overlapping manner by the aforementioned predetermined assembly force, the overall length contracts, and when the assembly force is removed, the overall length expands and returns to its original state. However, since the terminal portion 40 can be separated into the one-side terminal 50 and the other-side terminal 60, there is a concern that the flow of electricity may be interrupted when the two terminals are moved in an overlapping manner. Therefore, one of the one-side terminal 50 and the other-side terminal 60 must be provided with an elastic member, or an additional shape change is required to apply lateral tension.

[0085] As described above, “side tension” is defined as a force that is transmitted from one terminal 50 to the other terminal 60 in a direction different from the longitudinal direction in order to prevent interruption of the flow of electricity between the terminal 50 and the terminal 60 .

[0086] 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 4In the structure of the embodiment of the cavity filter of the present invention described in the following figures, the outer shape of the structure such as the dielectric or reinforcing plate inserted into the terminal insertion port 25 together with the terminal portion 40 can be different according to the impedance matching design.

[0087] Figure 4 FIG1 is an exploded perspective view showing a portion of the structure of the cavity filter according to the first embodiment of the present invention. Figure 5 To show Figure 4 A cross-sectional view of a state in which the terminal portion of the structure is inserted into the terminal insertion port, Figure 6 To show Figure 4 A three-dimensional view of the terminal portion 40 in the structure.

[0088] 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 specified distance by an external component 8 having an electrode pad (not marked with a reference numeral) provided on one side; 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 current flow between the electrode pad and the radio frequency signal connection portion from being interrupted.

[0089] Among them, 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.

[0090] 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 distinguished as 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 .

[0091] 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.

[0092] 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.

[0093] 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 .

[0094] 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.

[0095] In the star-shaped gasket 90, the annular fixing end 91 is fixed to the gasket setting portion 27, and may include a plurality of supporting ends 92 formed upwardly inclined from the fixing end 91 toward the center of the electrode pad side of the external component 8 formed by one of the antenna board and the printed circuit board.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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 20d of the present invention.

[0100] 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.

[0101] like Figures 4 to 6 As shown, in the cavity filter 20 of the first embodiment of the present invention, the terminal portion 40 may include: a one-side terminal 50, which forms a contact with the electrode plate of the external component 8; and an other-side terminal 60, which serves as a radio frequency signal connection portion 31 and is fixed to a welding hole 32 formed in a portion extending in a plate shape.

[0102] Among them, one of the one-side terminal 50 and the other-side terminal 60 is inserted into the other, and when assembled, a portion of each end portion is arranged to overlap each other by a predetermined length.

[0103] The cavity filter 20 of the first embodiment of the present invention may have a cavity filter as shown in the accompanying drawings (see FIG. Figures 4 to 6 ) is inserted into the lower side of the one side terminal 50. To this end, the upper end of the other side terminal 60 can be in the form of a hollow tube with a hollow interior, so that a part of the lower end of the one side terminal 50 is inserted.

[0104] When the terminal portion 40 formed by the one-side terminal 50 and the other-side terminal 60 as described above is disposed in the terminal insertion port 25, a dielectric 70 can be inserted to surround the outside of the terminal portion 40 to achieve impedance matching within the terminal insertion port 25. The dielectric 70 can be made of Teflon. However, the material of the dielectric 70 is not limited to Teflon, and any material having a dielectric constant that can achieve impedance matching within the terminal insertion port 25 can be substituted.

[0105] The dielectric 70 may be integrally molded with one terminal 50 of the terminal portion 40 by injection molding, but can be assembled by forming the dielectric 70 with a terminal through-hole 71 for inserting the terminal portion 40 by separate molding and then inserting it into the terminal insertion port 25. Figure 5 As shown, the dielectric 70 can be inserted and arranged so as to be locked to the insertion port support end 28 provided in the terminal insertion port 25 .

[0106] On the other hand, in one side terminal 50, the contact area of the contact portion 53 that forms the contact with the external component 8 formed by one of the antenna board and the printed circuit board is as small as possible. Figures 4 to 6 As shown, the contact portion 53 at the front end of the one side terminal 50 may be in a hemispherical shape having a predetermined contact area.

[0107] While providing an assembler's assembly force by contacting the electrode pad of the external component 8 through the contact portion 53 at the front end of the one-side terminal 50, the terminal 50 can be moved in the vertical direction in the drawing while being guided by the terminal through-hole 71 of the dielectric 70 provided in the terminal insertion port 25. The one-side terminal 50 as described above can be in the form of a metal rod that allows current to flow.

[0108] At the same time, a plurality of tension cutouts 64 extending in the vertical direction may be provided at the upper end 61 of the other-side terminal 60, into which a portion of the lower side of the one-side terminal 50 is inserted. The tension cutouts 64 may be formed by cutting to divide the upper end 61 of the other-side terminal 60, which is in the form of a hollow tube, into a plurality of parts.

[0109] The tension cut portion 64 applies the side tension by being in close contact with the outer peripheral side of the lower end portion of the one-side terminal 50 , so that the one-side terminal 50 is accommodated inside the upper end portion 61 of the other-side terminal 60 .

[0110] Among them, the dielectric 70 is arranged in a manner to support the outer peripheral surface of the upper end portion 61 of the other side terminal 60 formed with the tension cutting portion 64 toward the inside, and the inner side surface of the upper end portion 61 of the other side terminal 60 cut by the tension cutting portion 64 is always in close contact with the outer peripheral surface of the one side terminal 50 accommodated therein.

[0111] On the other hand, the tension cut portion 64 formed in the upper end portion 61 of the other-side terminal 60 is preferably formed so that the distal ends of the upper end portion 61 of the other-side terminal 60 are inclined at a predetermined angle toward the center of the other-side terminal 60 during the cut. In this case, the distal ends of the upper end portion 61 of the other-side terminal 60 are formed at an angle to a size that at least allows the lower end portion of the one-side terminal 50 to be accommodated within the upper end portion 61 of the other-side terminal 60 having a hollow tube shape.

[0112] The addition of the side tension formed by the tension cut portion 64 as described above can prevent the interruption of the flow of electricity through the terminal portion 40 separated into two in advance.

[0113] On the other hand, the cavity filter 20 of the first embodiment of the present invention may include at least one elastic component 80 , which is disposed inside the upper end portion 61 of the other terminal 60 in the form of a hollow tube to elastically support the one terminal 50 .

[0114] In the cavity filter 20 of the first embodiment of the present invention, at least one elastic member 80 elastically supports one side terminal 50 toward the direction where the external member 8 formed by one of the antenna board and the printed circuit board is provided, and ultimately absorbs the assembly tolerance existing in the terminal insertion port 25.

[0115] Among them, such as Figures 4 to 6 As described above, the elastic member 80 is formed to correspond to the inner diameter of the other-side terminal 60 in the form of a hollow tube, and may be formed of a plurality of elastic beads stacked in the vertical direction.

[0116] Although not specifically shown in the accompanying drawings, the elastic component 80 as described above plays the following role, namely, when the contact portion 53 at the front end of the one side terminal 50 in the terminal portion 40 is assembled in a manner that is tightly attached to the electrode plate side of the external component 8, as described above, the assembly tolerance existing in the terminal insertion port 25 is eliminated, and at the same time, the inner side of the upper end portion 61 of the other side terminal 60 in the hollow tube form is compressed, and then elastic force is provided in a manner that allows the contact portion 53 of the one side terminal 50 to continue to form contact with the electrode plate.

[0117] On the other hand, Figure 5 As shown, when the assembler or the like does not provide any assembly force to the terminal 50 on one side, the protruding height of the contact portion 53 is greater than the protruding height of the support end 92 in the structure of the star-shaped gasket 90 .

[0118] Hereinafter, with reference to the accompanying drawings (especially, Figure 5 ), the following describes the assembly tolerance absorption process and the side tension imparting process during the assembly process of the cavity filter 20 of the first embodiment of the present invention formed by the structure as described above.

[0119] First, if Figure 5 As shown, the cavity filter 20 of the first embodiment of the present invention is brought into close contact with one side of an external component 8 formed by either an antenna board or a printed circuit board provided with electrode pads. Subsequently, a connecting member (not shown) is connected to the mounting hole to transmit a predetermined connecting force to the cavity filter 20. However, the cavity filter 20 does not necessarily need to be brought into close contact with the side of the external component 8 formed by either the antenna board or the printed circuit board. Conversely, the mounting force can be transmitted by placing the cavity filters 20 aligned at predetermined intervals in close contact with the side of the external component 8 formed by either the antenna board or the printed circuit board.

[0120] In this way, if Figure 5 As shown, the distance between the external component 8 formed by one of the antenna board and the printed circuit board and the cavity filter 20 of the first embodiment of the present invention is reduced, and at the same time, the shape of the supporting end 92 of the star-shaped gasket 90 is deformed by the above-mentioned connecting force, and the assembly tolerance existing between the cavity filter 20 of the first embodiment of the present invention and the external component 8 formed by one of the antenna board and the printed circuit board is absorbed for the first time.

[0121] At the same time, the one side terminal 50 in the terminal portion 40 is guided by the terminal through hole 71 of the dielectric 70 inserted into the terminal insertion port 25 and is pressed by one side of the external component 8 formed by one of the antenna board and the printed circuit board in a manner of moving a predetermined distance toward the other side terminal 60. In this case, the elastic component 80 such as a plurality of elastic beads stacked on the inner side of the upper end portion 61 of the other side terminal 60 is compressed and absorbs the assembly tolerance existing in the terminal insertion port 25 of the cavity filter 20 of the first embodiment of the present invention for a second time.

[0122] Furthermore, in the one side terminal 50 and the other side terminal 60, the upper end portion 61 of the other side terminal 60 applies side tension to the outer peripheral surface of the lower end portion of the one side terminal 50 inserted into the inner side of the hollow tube shape through the tension cut portion 64, thereby preventing the interruption of the flow of electricity, thereby preventing the degradation of the signal performance of the cavity filter 20 of the first embodiment of the present invention.

[0123] 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 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 of Figure 9 To show Figure 7 A three-dimensional view of the terminal portion in the structure.

[0124] like Figures 7 to 9 As shown, the cavity filter 20 of the second embodiment of the present invention includes: a radio frequency signal connection part 31; a terminal part 140, including a one-side terminal 150 and an other-side terminal 160; a dielectric 170, which is inserted into the terminal insertion port 25 in a manner of surrounding the outer side of the terminal part 140; and a reinforcing plate 195 for reinforcing the radio frequency signal connection part 31.

[0125] Unless otherwise specified below, the RF signal connection portion 31, the terminal portion 140, the dielectric 170, and their underlying structures are identical to those of the cavity filter 20 described in the first embodiment of the present invention. Therefore, the first embodiment will be used in place of the detailed description thereof. The following description will focus on the differences from the first embodiment.

[0126] like Figure 8 and Figure 9 As shown, a terminal through-hole 171 is formed in the reinforcing plate 195 for the other-side terminal 160 to pass through, and the other-side terminal 160 can be fixed to the terminal through-hole 171 of the reinforcing plate 195. A locking end 163 having a diameter larger than that of the terminal through-hole 171 can be formed on the other-side terminal 160 to pass through the terminal through-hole 171 of the reinforcing plate 195 and be locked to the upper surface of the reinforcing plate 195.

[0127] Although not shown, the lower surface of the edge of the reinforcing plate 195 may be supported by the insertion port support end 28 formed in the terminal insertion port 25 .

[0128] The reinforcing plate 195 restricts the downward movement of the one-side terminal 150 through the friction between the reinforcing plate 195 and the one-side terminal 150, thereby playing a reinforcing role. The one-side terminal causes the dielectric 170 to move downward through the assembly force provided by the assembler.

[0129] Furthermore, in the reinforcing plate 195 , the downward movement of the other-side terminal 160 is restricted by its locking end 163 , which actually serves to reinforce the RF signal connecting portion 31 to which the lower end 162 of the other-side terminal 160 is fixed by welding.

[0130] That is, in the case of the cavity filter 20 of the first embodiment, the other side terminal 60 is also moved downward by the one side terminal 50 moved by the assembly force, and at the same time, the assembly force is transmitted to the RF signal connection part 31, but in the cavity filter 20 of the second embodiment, the RF signal connection part 31 is indirectly strengthened by restricting the movement of the other side terminal 60 toward the downward side.

[0131] On the other hand, a tension cutting portion 64 is formed at the upper end portion 61 of the other side terminal 60, and a portion of the lower end portion of the one side terminal 50 is inserted into the inner side of the upper end portion 661 of the other side terminal 60 in the shape of a hollow tube. A plurality of elastic beads serving as elastic components 80 are provided between the one side terminal 50 and the other side terminal 60. The above structure is the same as that of the first embodiment, and therefore, its detailed description will be omitted.

[0132] 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.

[0133] like Figures 10 to 12 As shown, the cavity filter 20 according to the third embodiment of the present invention includes a radio frequency signal connection portion 31 , a terminal portion 240 and a dielectric 270 .

[0134] In the structure of the cavity filter 20 of the third embodiment of the present invention, unless otherwise specifically mentioned in the subsequent content, the RF signal connection part 31 and the dielectric 270 and its lower-level structure are the same as the structures in the cavity filter 20 of the first and second embodiments of the present invention described above. Therefore, the specific description thereof will be replaced by the first and second embodiments.

[0135] However, in the cavity filter 20 of the third embodiment of the present invention, the structure of the dielectric 270 is the same as the structure of the dielectric 70 of the cavity filter 20 of the first embodiment, but the reinforcing plate 195 is removed from the structure of the cavity filter 20 of the second embodiment.

[0136] Furthermore, in the structure of the cavity filter 20 of the third embodiment of the present invention, unlike the first and second embodiments, the terminal portion 240 is different in the following aspects, namely, the tension cutting portion 254 is formed at the lower end portion 252 of the one side terminal 250, and the upper end portion 261 of the other side terminal 260 is arranged in a manner of being accommodated inside the lower end portion 252 of the one side terminal 250 arranged in the form of a hollow tube.

[0137] At the same time, one side terminal 250 may further be formed with an anti-separation rib 255 protruding outward from an outer peripheral surface corresponding to the upper end of the tension cut portion 254 .

[0138] The anti-detachment rib 255 of the one side terminal 250 is arranged in a manner that is locked to the inner side of the terminal through hole 271 of the dielectric 270, preventing the one side terminal 250 from detaching toward the outside (in particular, toward the direction where an external component 8 formed by one of the antenna board and the printed circuit board is provided, and the above-mentioned external component 8 formed by one of the antenna board and the printed circuit board is provided with an electrode pad) through the elastic force of multiple elastic beads 280 arranged between the one side terminal 250 and the other side terminal 260.

[0139] In addition, the following structure of the cavity filter 20 of the third embodiment is the same as that of the cavity filter 20 of the first embodiment, that is, the dielectric 270 supports the outer peripheral surface of the tension cut portion 254 of the one side terminal 250, and the lower end portion 262 of the other side terminal 260 is directly welded and fixed to the RF signal connection portion 31 without an additional reinforcement plate 295.

[0140] 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 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.

[0141] like Figures 13 to 15 As shown, the cavity filter 20 according to the fourth embodiment of the present invention includes a radio frequency signal connection portion 31 , a terminal portion 340 , a dielectric 370 and a reinforcing plate 395 .

[0142] The reinforcing plate 395 performs the same function as the reinforcing plate 195 in the cavity filter 20 of the second embodiment, and a detailed description thereof will be omitted.

[0143] Furthermore, the structure of the terminal portion 340 is the same as that of the cavity filter 20 of the third embodiment, and is replaced by the description of the third embodiment.

[0144] In addition, the cavity filter 20 of the fourth embodiment may include all remaining structures of the cavity filter 20 of the second embodiment.

[0145] 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 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.

[0146] like Figures 16 to 18 As shown, the cavity filter 20 according to the fifth embodiment of the present invention includes a radio frequency signal connection portion 31 , a terminal portion 440 , a dielectric 470 and a reinforcing plate 495 .

[0147] The reinforcing plate 495 performs the same function as the reinforcing plates 195 and 395 in the cavity filter 20 of the second embodiment and the fourth embodiment, and detailed description thereof will be omitted.

[0148] Furthermore, the structure of the terminal portion 440 is the same as that of the cavity filter 20 in the third and fourth embodiments, and is replaced by the description of the third and fourth embodiments.

[0149] However, if Figures 16 to 18 As shown, compared with the cavity filter 20 of the first to fourth embodiments, in the cavity filter 20 of the fifth embodiment of the present invention, the elastic component 480 arranged between the one side terminal 450 and the other side terminal 460 can be set by an elastic spring such as a spring.

[0150] In addition, the cavity filter 20 of the fifth embodiment may include all remaining structures of the cavity filter 20 of the fourth embodiment.

[0151] 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 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.

[0152] like Figures 19 to 21As shown, the cavity filter according to the sixth embodiment of the present invention includes a radio frequency signal connection portion 31 , a terminal portion 540 including a one-side terminal 550 and an other-side terminal 560 , and a reinforcing plate 595 .

[0153] Unless otherwise specifically mentioned in the following content, the functions of the RF signal connection part 31, the terminal part 540 and the reinforcement plate 595 and its lower-level structures in the structure of the cavity filter 20 of the sixth embodiment of the present invention are the same as the functions of the structure of the cavity filter 20 of the first to fifth embodiments described above, and their specific descriptions are replaced by the above-mentioned embodiments.

[0154] However, if Figures 19 to 21 As shown, in the structure of the cavity filter 20 of the sixth embodiment of the present invention, the structure of the terminal portion 540 is the same as that of the cavity filter 20 of the first and second embodiments. Specifically, a tension cutout portion 564 is formed at the upper end portion 561 of the other-side terminal 560, and a portion of the lower end portion of the one-side terminal 550 is disposed so as to be accommodated within the upper end portion 561 of the hollow other-side terminal 560.

[0155] Furthermore, in the cavity filter 20 according to the sixth embodiment of the present invention, the one-side terminal 550 is in the shape of a vertically elongated rod and can be elastically supported by an elastic spring as an elastic member 557 provided inside the other-side terminal 560 .

[0156] At the same time, a locking rib 554 may be formed on the outer peripheral surface of the one-side terminal 550 to be locked inside the other-side terminal 560, thereby preventing the one-side terminal 550 from being disengaged toward the outside due to the elastic member 557. The locking rib 554 is not locked when inserted into the inside of the other-side terminal 560, and can be formed into a hook shape that is locked inside the other-side terminal 560 by being locked to the locking end 567 formed inside the other-side terminal 560.

[0157] On the other hand, in the cavity filter 20 of the sixth embodiment of the present invention, an elastic ring installation groove 565 may be provided on the outer peripheral surface of the other-side terminal 560, and a plurality of elastic rings 580 may be stacked vertically in the elastic ring installation groove 565. In the cavity filter 20 of the sixth embodiment of the present invention, two elastic rings 580 ( 580 a , 580 b ) are stacked vertically, but the number is not limited to this.

[0158] Among them, in the cavity filter 20 of the sixth embodiment of the present invention, as an alternative to removing the dielectric structure, the outer peripheral surface of the other side terminal 560 having the tension cut portion 564 is crimped by an elastic ring 580 to add side tension, thereby preventing the interruption of the current flow between the outer peripheral surface of the one side terminal 550 moving in the up and down directions inside.

[0159] Furthermore, the cavity filter 20 of the sixth embodiment of the present invention is supported and configured by the insertion port support end 28 formed at the terminal insertion port 25, and the RF signal connection portion 31 to which the lower end portion 562 of the other side terminal 560 is welded and fixed is reinforced by forming a reinforcing plate 595 with a terminal through-hole 597 in a manner that allows the other side terminal 560 in the terminal portion 540 to pass through.

[0160] As described above, similar to the various embodiments described later, in the cavity filter 20 of the sixth embodiment of the present invention, an elastic component 557 formed by an elastic spring is provided between the one side terminal 550 and the other side terminal 560, and elastically supports the one side terminal 550 toward the electrode plate side provided on the external component 8 formed by one of the antenna board and the printed circuit board in accordance with the assembly force provided by the assembler, thereby absorbing the assembly tolerance existing in the terminal insertion port 25 for a second time.

[0161] 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.

[0162] like Figures 22 to 24 As shown, the cavity filter 20 according to the seventh embodiment of the present invention includes a terminal portion 640 disposed in the terminal insertion port 25 and dielectrics 670 a and 670 b .

[0163] The dielectrics 670a and 670b may be formed into a shape for achieving impedance matching in the terminal insertion port 25, such as Figure 22 As shown, the upper dielectric 670a and the lower dielectric 670b may be respectively formed with terminal through holes 671a and 671b described later. The terminal through holes 671a and 671b allow the upper end and the lower end of the other terminal 660 in the terminal portion 640 to pass through.

[0164] And, as Figures 22 to 24 As shown, the cavity filter 20 of the seventh embodiment of the present invention may include: a main terminal housing 29 disposed in the terminal insertion port 25 and in the form of a hollow tube with an interior; and a sub-terminal housing 29 ′ disposed apart from the upper side of the main terminal housing 29 .

[0165] Although not specifically shown in the drawings, the terminal insertion opening 25 may have a shape corresponding to the outer shapes of the main terminal housing 29 and the sub-terminal housing 29 ′.

[0166] On the other hand, the other side terminal 660 is arranged to penetrate the main terminal housing 29 in the up-down direction, and can be arranged in a manner that penetrates the terminal through-hole 671a of the upper dielectric 670a and the terminal through-hole 671b of the lower dielectric 670b set inside the main terminal housing 29.

[0167] At the same time, a portion of the upper end of the other-side terminal 660, which is arranged to penetrate the main terminal housing 29, can be inserted into the sub-terminal housing 29' by a predetermined length. Furthermore, within the sub-terminal housing 29', a locking end 652 formed at the lower end of the one-side terminal 650 is positioned to prevent it from escaping outward, and an elastic member 680 is provided between the one-side terminal 650 and the other-side terminal 660.

[0168] One side terminal 650 may include: a contact portion 651, which is arranged 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 contact plate 652, which is formed in a manner larger than the outer diameter of the contact portion 651 to be locked on the inner side of the sub-terminal housing 29'.

[0169] Among them, Figure 22 and Figure 23 As shown, the elastic component 680 can be formed by a rod spring, which includes: a support ring portion 681, which is supported by the upper end surface of the other side terminal 660; and a pair of support rods 682, which protrude and extend upward in directions of intersection with each other from the support ring portion 681 to support the bottom of the contact plate 652 in the one side terminal 650.

[0170] like Figure 23 As shown, if the assembly force of the assembler is provided, the rod spring is compressed and deformed by being pressed by the terminal 650 on one side, and absorbs the assembly tolerance existing in the terminal insertion port 25. At the same time, it is set by a conductive material that allows current to flow, and even if an additional tension cutting portion is not provided, the interruption of the current flow can be prevented.

[0171] At the same time, the lower end of the other terminal 660 may be welded and fixed to the welding hole 32 formed in the plate of the RF signal connection portion 31 provided in the terminal insertion port 25 .

[0172] In the cavity filter 20 of the seventh embodiment of the present invention formed with the structure as described above, the one side terminal 650 in the terminal portion 640 is elastically supported by the elastic component 680 inside the sub-terminal housing 29' with the help of the assembly force provided by the assembler, thereby absorbing the assembly tolerance existing in the terminal insertion port 25.

[0173] Figure 25 FIG1 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 26To show direction 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.

[0174] like Figures 25 to 27 As shown, the cavity filter 20 according to the eighth embodiment of the present invention includes a terminal portion 740 disposed in the terminal insertion port 25 and dielectrics 770 a and 770 b .

[0175] The dielectrics 770a and 770b may be formed into a shape for achieving impedance matching in the terminal insertion port 25, such as Figure 26 As shown, it can include an upper dielectric 770a and a lower dielectric 770b respectively formed with terminal through holes 771a and 771b described later, and the above-mentioned terminal through holes 771a and 771b allow the upper end of one side terminal 750a and the lower end of the other side terminal 750b in the terminal portion 740 to pass through.

[0176] Among them, Figures 25 to 27 As shown, the cavity filter 20 of the eighth embodiment of the present invention may include: a terminal housing 29, which is arranged in the terminal insertion port 25 and is in the form of a hollow tube with a hollow interior; and a transfer terminal 760, which is arranged in the center of the terminal housing 29 in a long manner along the longitudinal direction.

[0177] Although not specifically shown in the drawings, the terminal insertion opening 25 may have a long bar shape corresponding to the outer shape of the terminal housing 29 .

[0178] The transfer terminal 760 can be fixed by inserting a portion of the upper end 761 into the terminal through-hole 771a of the upper dielectric 770a and inserting a portion of the lower end 762 into the terminal through-hole 771b of the lower dielectric 770b.

[0179] Among them, Figure 25 and Figure 26 As shown, in the cavity filter 20 of the eighth embodiment of the present invention, the terminal portion 740 may include: a side terminal 750a, which is arranged inside the terminal through-hole 771a of the upper dielectric 770a, and is separated from the upper end portion 761 of the transfer terminal 760, so as to be fixed in a manner preventing it from detaching from the upper dielectric 770a; and an other side terminal 750b, which is arranged inside the terminal through-hole 771b of the lower dielectric 770b, and is separated from the lower end portion 762 of the transfer terminal 760, so as to be fixed in a manner preventing it from detaching from the lower dielectric 770b.

[0180] At the same time, the cavity filter 20 of the eighth embodiment of the present invention may include: an upper elastic component 780a, arranged on the upper side dielectric 770a, located between the one side terminal 750a and the upper end of the transfer terminal 760; and a lower elastic component 780b, arranged on the lower side dielectric 770b, located between the other side terminal 750b and the lower end 762 of the transfer terminal 760.

[0181] The upper elastic component 780a and the lower elastic component 780b may both be provided by springs.

[0182] like Figure 26 As shown, when an assembler applies an assembling force, the upper elastic member 780 a and the lower elastic member 780 b are pressed by the one-side terminal 750 a to be compressed and deformed, thereby absorbing the assembly tolerance existing in the terminal insertion port 25 .

[0183] On the other hand, Figure 26 As shown, in the cavity filter 20 of the eighth embodiment of the present invention, a tension cutting portion 754 can be provided at the lower end 752 of the one side terminal 750a and the upper end 752 of the other side terminal 750b that are inserted into and accommodate the upper end 761 and the lower end 762 of the transfer terminal 760.

[0184] The tension cutting portion 754 described above can provide the rod side tension so that the outer peripheral surface is tightly supported by the upper dielectric 770a and the lower dielectric 770b, thereby preventing the interruption of the flow of electricity between the one side terminal 750a and the transfer terminal and between the other side terminal 750b and the transfer terminal 760.

[0185] Figure 28 FIG. 1 is a cross-sectional view showing an embodiment of a connector according to the present invention.

[0186] 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 the external component 8 formed by one of the antenna board and the printed circuit board. However, the embodiments of the present invention are not limited to this. Figure 28 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.

[0187] The above description is merely an illustrative description of the technical concept of the present invention. Anyone skilled in the art in the technical field to which the present invention belongs can make various modifications and variations without departing from the essential characteristics of the present invention.

[0188] 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.

[0189] Industrial applicability

[0190] 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: a radio frequency signal connection portion, provided at a predetermined distance from external components; and The terminal portion electrically connects 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 external component and the RF signal connection portion. The terminal portion is separated into a side terminal forming a contact with the external component and an other side terminal connected to the RF signal connection portion, and an elastic member provided between the one side terminal and the other side terminal is used to absorb the assembly tolerance existing in the terminal insertion port provided with the terminal portion. The cavity filter further includes: a dielectric member inserted into the terminal insertion opening so as to surround the outer side of the terminal portion; and A reinforcing plate is used to strengthen the radio frequency signal connection portion provided in the terminal insertion port. The reinforcing plate is provided with a terminal through-hole through which the terminal portion passes. A locking end is formed on one of the one side terminal and the other side terminal that passes through the terminal through hole. The diameter of the locking end is larger than the diameter of the terminal through hole so as to be locked to the reinforcing plate. The reinforcing plate is restricted from moving downward together with the one-side terminal by the friction between the reinforcing plate and the one-side terminal, and the one-side terminal causes the dielectric to move downward by the assembly force provided by the assembler.

2. The cavity filter according to claim 1, wherein The one terminal in the terminal portion is arranged so as to be movable together with the dielectric in the terminal insertion opening by an assembling force provided by an assembler. The other terminal in the terminal portion is connected to the RF signal connection portion. One of the one-side terminal and the other-side terminal is accommodated so as to overlap with the other by a predetermined length.

3. The cavity filter according to claim 1, wherein: A plurality of tension cut portions extending in the vertical direction are provided on one of the one side terminal and the other side terminal.

4. The cavity filter according to claim 1, wherein: The reinforcing plate is a part of the filter body and is fixed to an insertion port support end formed to protrude toward the terminal insertion port.

5. The cavity filter according to claim 1, wherein: An elastic ring arrangement groove is formed on the outer side of the other terminal. At least one elastic ring is arranged in the elastic ring arrangement groove.

6. The cavity filter according to claim 5, characterized in that Two or more elastic rings are stacked and provided in the elastic ring installation groove in the vertical direction.

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