Resonance filter

Abstract

The present application discloses a resonant filter, which includes a housing, an input resonant component, an output resonant component and an isolation plate. The housing has a receiving cavity. The input resonant component is located in the receiving cavity, the input resonant component includes a first input resonant body and a second input resonant body, and the first input resonant body has a plurality of first input resonant rods. The output resonant component is located in the receiving cavity, the output resonant component includes a first output resonant body and a second output resonant body, and the first output resonant body has a plurality of first output resonant rods. The isolation plate is located in the receiving cavity, the isolation plate is located between the first input resonant body and the first output resonant body, and the first input resonant rod extending from one end of the first input resonant body out of the isolation plate corresponds to the first output resonant rod extending from one end of the first output resonant body out of the isolation plate. The resonant filter of the present application has a simple structure and is easy to produce.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to a resonant filter. Background Art

[0002] The cavity filter used to select the communication signal frequency and filter out the clutter or interference signal outside the communication signal frequency usually includes a cavity, a resonant rod, a cover plate and a tuning screw. The cover plate and the cavity form a resonant cavity, the resonant rod is arranged at the bottom of the cavity, and the cover plate cooperates with the tuning screw to adjust the coupling frequency of the cavity filter. Among them, the filter specifications include order, center frequency, bandwidth, ripple size in the passband, frequency response function, etc. The order represents the number of resonant cavities in the filter. If the order is larger, the attenuation of the band edge will be greater, the filtering effect will be better, but the relative size of the filter will become larger. At present, due to the miniaturization trend of products, there are problems such as difficult process implementation and high cost. Furthermore, the assembly relationship of the resonant filter is complex, which is not conducive to production automation. Summary of the invention

[0003] The embodiment of the present application provides a resonant filter, which solves the problem of complex structure and difficult production of current resonant filters by arranging multiple resonant bodies in parallel with each other and staggeredly arranging multiple resonant rods of the multiple resonant bodies.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] A resonant filter is provided, comprising: a housing, an input resonant component, an output resonant component and an isolation plate. The housing has a receiving cavity; the input resonant component is located in the receiving cavity, the input resonant component comprises a first input resonant body and a second input resonant body, the first input resonant body has a plurality of first input resonant rods, the second input resonant body has a plurality of second input resonant rods, the second input resonant body is located on one side of the first input resonant body, and the plurality of second input resonant rods are arranged in a staggered manner with the plurality of first input resonant rods; the output resonant component is located in the receiving cavity, the output resonant component comprises a first output resonant body and a second output resonant body, the first output resonant body has a plurality of first output resonant rods, the second output resonant body has a plurality of second output resonant rods, the first output resonant body is located on one side of the first input resonant body, the second output resonant body is located on one side of the first output resonant body, and the plurality of second output resonant rods are arranged in a staggered manner with the plurality of first output resonant rods; the isolation plate is located in the receiving cavity, the isolation plate is located between the first input resonant body and the first output resonant body, the first input resonant rod extending from one end of the first input resonant body from the isolation plate corresponds to the first output resonant rod extending from one end of the first output resonant body from the isolation plate.

[0006] In one embodiment, the first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body respectively include a plurality of baffles, and the plurality of baffles are respectively located between two adjacent first input resonant rods, between two adjacent second input resonant rods, between two adjacent first output resonant rods and between two adjacent second output resonant rods.

[0007] In one embodiment, a baffle is provided between two adjacent first input resonance rods and between two adjacent first output resonance rods, and two baffles are provided between two adjacent second input resonance rods and between two adjacent second output resonance rods.

[0008] In one embodiment, the first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body also include a bracket, a plurality of baffles extend upward from the bracket, and a plurality of first input resonant rods, a plurality of second input resonant rods, a plurality of first output resonant rods and a plurality of second output resonant rods extend upward from the bracket.

[0009] In one embodiment, the first input resonance rod, the second input resonance rod, the first output resonance rod and the second output resonance rod are respectively formed integrally with the bracket and the baffle.

[0010] In one embodiment, the first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body respectively include brackets, and multiple first input resonant rods, multiple second input resonant rods, multiple first output resonant rods and multiple second output resonant rods respectively extend upward from the brackets, wherein two adjacent first input resonant rods, two adjacent second input resonant rods, two adjacent first output resonant rods and two adjacent second output resonant rods are separated from each other and arranged on the brackets.

[0011] In one embodiment, the distance between two adjacent first input resonance rods is smaller than the distance between two adjacent second input resonance rods, and the distance between two adjacent first output resonance rods is smaller than the distance between two adjacent second output resonance rods.

[0012] In one embodiment, the first input resonance rod, the second input resonance rod, the first output resonance rod and the second output resonance rod are respectively formed integrally with the bracket.

[0013] In one embodiment, the first input resonant rod, the second input resonant rod, the first output resonant rod and the second output resonant rod respectively include a connecting rod and a resonant rod member, one end of the connecting rod extends upward from the bracket, and one end of the resonant rod member extends from the other end of the corresponding connecting rod.

[0014] In one embodiment, the resonant rod comprises a resonant opening, and the resonant opening is arranged toward a first direction or a second direction, and the first direction is opposite to the second direction.

[0015] In one embodiment, the resonant rod member includes a first crossbar, a straight rod and a second crossbar, one end of the first crossbar extends from the other end of the connecting rod in a first direction, one end of the straight rod extends upward from the other end of the first crossbar, and one end of the second crossbar extends from the other end of the straight rod in a second direction, and the first crossbar, the second crossbar and the straight rod form a resonant opening.

[0016] In one embodiment, the first crossbar and the second crossbar have different lengths.

[0017] In one embodiment, the shell includes a shell, an input hole, an output hole, an input device and an output device, the accommodating cavity is located in the shell, the input hole and the output hole pass through the shell and are connected to the accommodating cavity, the input device is assembled in the input hole, the input end of the first input resonant body has an input tap, the input tap passes through the input device, the output device is assembled in the output hole, and the output end of the first output resonant body has an output tap, and the output tap passes through the output device.

[0018] In one embodiment, the first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body respectively include brackets, the bracket of the first input resonant body and the bracket of the first output resonant body are located below the accommodating cavity, the bracket of the second input resonant body and the bracket of the second output resonant body are located above the accommodating cavity, a plurality of first input resonant rods and a plurality of first output resonant rods respectively extend upward from the corresponding brackets, and a plurality of second input resonant rods and a plurality of second output resonant rods respectively extend downward from the corresponding brackets.

[0019] In one embodiment, the first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body are parallel to each other.

[0020] The present application provides a resonant filter, which is designed by assembling an input resonant component, an output resonant component and an isolation plate. The input resonant component and the output resonant component are symmetrically arranged relative to the isolation plate. The input resonant component and the output resonant component respectively include two resonant bodies, the two resonant bodies are parallel to each other, the resonant bodies have multiple resonant rods, the multiple resonant rods of the two resonant bodies are staggered, and the resonant rods at one end of the two resonant bodies correspond to each other. In this way, the resonant filter of the present application has a simple structure and is easy to produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 is a perspective view of a first embodiment of the resonant filter of the present application;

[0023] Figure 2 is an exploded view of a first embodiment of the resonant filter of the present application;

[0024] Figure 3 is another exploded view of the first embodiment of the resonant filter of the present application;

[0025] Figure 4 is a schematic diagram of a first embodiment of a resonant main body combination of a resonant filter of the present application;

[0026] Figure 5 is a schematic diagram of a second embodiment of a resonant main body combination of a resonant filter of the present application;

[0027] Figure 6 is a perspective view of a second embodiment of the resonant filter of the present application; and

[0028] Figure 7 It is an exploded view of the second embodiment of the resonant filter of the present application.

[0029] The following is a description with reference to the accompanying drawings:

[0030] 1: resonant filter; 11: housing; 111: shell; 1111: accommodating cavity; 1112: accommodating shell; 1114: shell plate; 112: input hole; 113: output hole; 114: input device; 115: output device; 13: input resonant component; 131: first input resonant body; 1311: first input resonant rod; 1312: input tap; 133: second input resonant body; 1331: second input resonant rod; 1 41: bracket; 143: baffle; 145: connecting rod; 147: resonant rod; 1470: resonant opening; 1471: first crossbar; 1472: straight rod; 1473: second crossbar; 15: output resonant component; 151: first output resonant body; 1511: first output resonant rod; 1512: output tap; 153: second output resonant body; 1531: second output resonant rod; 17: isolation plate; D: spacing. DETAILED DESCRIPTION

[0031] The embodiments of the present invention will be described below in conjunction with the accompanying drawings. In these drawings, the same reference numerals represent the same or similar components or method flows.

[0032] It must be understood that the words "comprise", "include" and the like used in this specification are used to indicate the existence of specific technical features, values, method steps, job processing, components and / or assemblies, but do not exclude the addition of more technical features, values, method steps, job processing, components, assemblies, or any combination of the above.

[0033] It should be understood that when a component is described as being "connected" or "coupled" to another component, it may be directly connected or coupled to the other component, and intermediate components may be present. Conversely, when a component is described as being "directly connected" or "directly coupled" to another component, there are no intermediate components.

[0034] See also Figures 1 to 3 , Figure 1 is a perspective view of a first embodiment of the resonant filter of the present application, Figure 2 Is the exploded diagram with Figure 3 is another exploded view. As shown in the figure, the present application provides a resonant filter 1, which includes a housing 11, an input resonant component 13, an output resonant component 15 and an isolation plate 17. The housing 11 has a shell 111, an input hole 112 and an output hole 113, and the housing 111 has a receiving shell 1112 and a shell plate 1114. The receiving shell 1112 of the housing 111 has a receiving cavity 1111, and the shell plate 1114 covers the receiving cavity 1111 of the receiving shell 1112. The input hole 112 and the output hole 113 penetrate the housing 111, and the input hole 112 and the output hole 113 are respectively connected to the receiving cavity 1111. The input resonance component 13 is located in the accommodating cavity 1111. The input resonance component 13 includes a first input resonance body 131 and a second input resonance body 133. The input end of the first input resonance body 131 is plugged into the input hole 112. The first input resonance body 131 has a plurality of first input resonance rods 1311. The second input resonance body 133 has a plurality of second input resonance rods 1331. The second input resonance body 133 is located on one side of the first input resonance body 131, and the plurality of second input resonance rods 1331 are staggered with the plurality of first input resonance rods 1311.

[0035] Furthermore, the output resonance component 15 is located in the accommodating cavity 1111, and the output resonance component 15 includes a first output resonance body 151 and a second output resonance body 153. The output end of the first output resonance body 151 is plugged into the output hole 113. The first output resonance body 151 has a plurality of first output resonance rods 1511 and the second input resonance body 133 has a plurality of second output resonance rods 1531. The first output resonance body 151 is located on one side of the first input resonance body 131, and the second output resonance body 153 is located on one side of the first output resonance body 151. The plurality of second output resonance rods 1531 are staggered with the plurality of first output resonance rods 1511. The isolation plate 17 is located in the accommodating cavity 1111, and the isolation plate 17 is located between the first input resonance body 131 and the first output resonance body 151. One end of the first input resonance body 131 extending out of the isolation plate 17 has a first input resonance rod 1311, and one end of the first output resonance body 151 extending out of the isolation plate 17 has a first output resonance rod 1511. The first input resonance body 131 , the second input resonance body 133 , the first output resonance body 151 and the second output resonance body 153 are parallel to each other.

[0036] Please also read Figure 4 , is a schematic diagram of the first embodiment of the resonant body combination of the resonant filter of the present application. As shown in the figure, in this embodiment, the first input resonant body 131 and the first output resonant body 151 have the same external structure, and the second input resonant body 133 and the second output resonant body 153 have the same external structure. The input resonant component 13 and the output resonant component 15 are symmetrically arranged structures based on the isolation plate 17. In other words, the structural combination of the first input resonant body 131 and the second input resonant body 133 and the structural combination of the first output resonant body 151 and the second output resonant body 153 are the same. Therefore, this embodiment uses the structural combination of the first input resonant body 131 and the second input resonant body 133 as a representative to illustrate the combination of the input resonant body and the combination of the output resonant body.

[0037] In this embodiment, the first input resonance body 131, the second input resonance body 133, the first output resonance body 151 and the second output resonance body 153 respectively include a bracket 141 and a plurality of baffles 143, the plurality of baffles 143 extend upward from the bracket 141, the plurality of first input resonance rods 1311, the plurality of second input resonance rods 1331, the plurality of first output resonance rods 1511 and the plurality of second output resonance rods 1531 extend upward from the bracket 141, respectively, and the plurality of baffles 143 are respectively located between two adjacent first input resonance rods 1311, between two adjacent second input resonance rods 1331, between two adjacent first output resonance rods 1511 and between two adjacent second output resonance rods 1531. The first input resonance rod 1311, the second input resonance rod 1331, the first output resonance rod 1511 and the second output resonance rod 1531 are respectively formed integrally with the bracket 141 and the baffles 143. This embodiment does not limit the number of baffles 143 spaced between two adjacent resonance rods, which can be adjusted according to the filtering needs of the user. In this embodiment, the bracket 141 is conductively connected to the housing 111, and one end of the baffle 143 away from the bracket 141 is conductively connected to the housing 111. In other words, both ends of the baffle 143 are conductively connected to the housing 111 (i.e., grounded). In this way, the baffle 143 can be used to shield the electromagnetic signal between two adjacent resonant rods and weaken the electromagnetic coupling between the two adjacent resonant rods.

[0038] In this embodiment, there is a baffle 143 between two adjacent first input resonance rods 1311 and between two adjacent first output resonance rods 1511. The distance between the two adjacent first input resonance rods 1311 and the distance between the two adjacent first output resonance rods 1511 are relatively close, so a small amount of electromagnetic signals will bypass the shielding of a single baffle 143 to form a transmission zero point. In addition, there are two baffles 143 between two adjacent second input resonance rods 1331 and between two adjacent second output resonance rods 1531. The distance between the two adjacent second input resonance rods 1331 and between the two adjacent second output resonance rods 1531 is relatively far, and there are shielding of two baffles 143, so the battery coupling generated is extremely weak, and will not cause effective influence between the two adjacent second input resonance rods 1331 and the two adjacent second output resonance rods 1531.

[0039] In addition, the plurality of first input resonance rods 1311 of the first input resonance body 131 correspond to one side of the plurality of baffles 143 of the second input resonance body 133, and the plurality of baffles 143 of the first input resonance body 131 correspond to one side of the plurality of second input resonance rods 1331 of the second input resonance body 133. The structural correspondence between the first output resonance body 151 and the second output resonance body 153 is the same as that between the first input resonance body 131 and the second input resonance body 133, so it will not be described again.

[0040] Please also read Figure 5 , is a schematic diagram of a second embodiment of the resonant body combination of the resonant filter of the present application. As shown in the figure, the difference between this embodiment and the first embodiment of the resonant filter lies in the baffle 143. In this embodiment, the first input resonant body 131, the second input resonant body 133, the first output resonant body 151 and the second output resonant body 153 respectively include a bracket 141, and a plurality of first input resonant rods 1311, a plurality of second input resonant rods 1331, a plurality of first output resonant rods 1511 and a plurality of second output resonant rods 1531 respectively extend upward from the bracket 141, wherein there is a spacing D between two adjacent first input resonant rods 1311, between two adjacent second input resonant rods 1331, between two adjacent first output resonant rods 1511 and between two adjacent second output resonant rods 1531.

[0041] The spacing D of this embodiment is used to shield the electromagnetic signal between two adjacent resonant rods and weaken the electromagnetic coupling between two adjacent resonant rods. Among them, the spacing D between two adjacent first input resonant rods 1311 is smaller than the spacing D between two adjacent second input resonant rods 1331. The spacing D between two adjacent first output resonant rods 1511 is smaller than the spacing D between two adjacent second output resonant rods 1531. In this way, there will still be a small amount of electromagnetic signals between the two adjacent first input resonant rods 1311 and the two adjacent first output resonant rods 1511, forming a transmission zero point. The distance between the two adjacent second input resonant rods 1331 and the two adjacent second output resonant rods 1531 is far enough that the electromagnetic signal cannot be transmitted.

[0042] In addition, the plurality of first input resonance rods 1311 of the first input resonance body 131 corresponds to one side of the spacing D of the second input resonance body 133 , and the spacing D of the first input resonance body 131 corresponds to one side of the plurality of second input resonance rods 1331 of the second input resonance body 133 .

[0043] In this embodiment, the first input resonance rod 1311, the second input resonance rod 1331, the first output resonance rod 1511 and the second output resonance rod 1531 respectively include a connecting rod 145 and a resonance rod 147, one end of the connecting rod 145 extends upward from the bracket 141, and one end of the resonance rod 147 extends from the other end of the plurality of connecting rods 145. Furthermore, the resonance rod 147 includes a resonance opening 1470, and the resonance opening 1470 is arranged toward the first direction or the second direction, and the first direction and the second direction are opposite directions. The resonant rod 147 includes a first crossbar 1471, a straight rod 1472 and a second crossbar 1473. One end of the first crossbar 1471 extends from the other end of the connecting rod 145 in a first direction, one end of the straight rod 1472 extends upward from the other end of the first crossbar 1471, and one end of the second crossbar 1473 extends from the other end of the straight rod 1472 in a second direction. The first crossbar 1471, the straight rod 1472 and the second crossbar 1473 form a resonant opening 1470. The lengths of the first crossbar 1471 and the second crossbar 1473 are different. The lengths of the first crossbar 1471 and the second crossbar 1473 of the resonant rod 147 of this embodiment can be adjusted according to the needs of the user.

[0044] Please refer to Figure 4 In this embodiment, the first input resonance body 131 has the same structure and appearance as the first output resonance body 151. The first input resonance body 131 is used as an example. The bracket 141 of the first input resonance body 131 has three first input resonance rods 1311. The resonance rods 147 of the three first input resonance rods 1311 include two resonance openings 1470 facing the first direction and one resonance opening 1470 facing the second direction. In addition, the second input resonance body 133 has the same structure and appearance as the second output resonance body 153. The bracket 141 of the second input resonance body 133 has two second input resonance rods 1331. The resonance rods 147 of the two second input resonance rods 1331 include one resonance opening 1470 facing the first direction and one resonance opening 1470 facing the second direction. The resonance opening 1470 of the resonance rod 147 of this embodiment can be adjusted in direction according to the needs of the user.

[0045] Please refer to Figure 2 and Figure 3In this embodiment, the housing 11 further includes an input device 114 and an output device 115. The input device 114 is assembled in the input hole 112. One end of the first input resonant body 131 has an input tap 1312. The input tap 1312 passes through the input device 114, and one end of the input tap 1312 is exposed outside the housing 111. The output device 115 is assembled in the output hole 113. One end of the first output resonant body 151 has an output tap 1512. The output tap 1512 passes through the output device 115, and one end of the output tap 1512 is exposed outside the housing 111.

[0046] In this embodiment, three first input resonance rods 1311 (A, C and E) are provided on the bracket 141 of the first input resonance body 131, and two second input resonance rods 1331 (B and D) are provided on the bracket 141 of the second input resonance body 133. Three first output resonance rods 1511 (F, H and J) are provided on the bracket 141 of the first output resonance body 151, and two second output resonance rods 1531 (G and I) are provided on the bracket 141 of the second output resonance body 153. The input tap 1312 is provided on one side of the first input resonance rod 1311 (A), and the output tap 1512 is provided on one side of the first output resonance rod 1511 (J). The first input resonance rod 1311 (E) is one end of the first input resonance body 131 extending out of the isolation plate 17. The first output resonance rod 1511 (F) is one end of the first output resonance body 151 extending out of the isolation plate 17 , and the first input resonance rod 1311 (E) and the first output resonance rod 1511 (F) correspond to each other.

[0047] In this embodiment, an electromagnetic signal is first introduced through the input tap 1312 of the first input resonant body 131. The electromagnetic signal mainly passes through the path of the first input resonant rod 1311 (A) electromagnetically coupled to the second input resonant rod 1331 (B), the second input resonant rod 1331 (B) electromagnetically coupled to the first input resonant rod 1311 (C), the first input resonant rod 1311 (C) electromagnetically coupled to the second input resonant rod 1331 (D), and the second input resonant rod 1331 (D) electromagnetically coupled to the first input resonant rod 1311 (E). The first input resonant rod 1311 (E) is electromagnetically coupled to the first output resonant rod 1511 (F). The first output resonant rod 1511(F) is electromagnetically coupled to the second output resonant rod 1531(G), the second output resonant rod 1531(G) is electromagnetically coupled to the first output resonant rod 1511(H), the first output resonant rod 1511(H) is electromagnetically coupled to the second output resonant rod 1531(I), and the second output resonant rod 1531(I) is electromagnetically coupled to the first output resonant rod 1511(J). The first output resonant rod 1511(J) guides the electromagnetic signal to the output tap 1512. Finally, the electromagnetic signal is derived from the output tap 1512 of the first output resonant body 151.

[0048] In addition, the isolation plate 17 is located between the first input resonant body 131 and the first output resonant body 151, which can isolate the short circuit phenomenon of electromagnetic coupling caused by the short distance between the first input resonant rod 1311 (A) and the first output resonant rod 1511 (J) and the first input resonant rod 1311 (C) and the first output resonant rod 1511 (H). In this way, the isolation plate 17 can shield and eliminate unnecessary electromagnetic coupling.

[0049] In this embodiment, a plurality of first input resonance rods 1311, a plurality of second input resonance rods 1331, a plurality of first output resonance rods 1511 and a plurality of second output resonance rods 1531 can be used to generate single cavity resonance respectively. The more the number of resonance cavities, the greater the attenuation of the passband edge, and the better the filtering effect. In this embodiment, the number of resonance cavities is increased by staggering the resonance rods. At the same time, the isolation plate 17 is used to isolate the short circuit between the first input resonance body 131 and the first output resonance body 151, so as to effectively utilize the space in the accommodating cavity 1111 of the housing 11, so that the number of resonance cavities can be increased without increasing the size of the housing 11, so as to achieve a good filtering effect. Furthermore, the transmission zero point formed between two adjacent first input resonance rods 1311 and between two adjacent first output resonance rods 1511 will increase the filtering effect. This embodiment has the functions of ten cavities and four zero-point filters. However, this embodiment is not limited to the functions of the above embodiments, and the filter can be further adjusted to have six cavities and two zero points, or twelve cavities and four zero points, etc. by increasing or decreasing the number of resonant cavities and increasing or decreasing the number of transmission zero points.

[0050] Please also read Figure 6 and Figure 7, which are perspective views and exploded views of the second embodiment of the resonant filter of the present application. As shown in the figure, the difference between this embodiment and the first embodiment lies in the arrangement direction of the second input resonant body 133 and the second output resonant body 153. The first input resonance body 131, the second input resonance body 133, the first output resonance body 151 and the second output resonance body 153 respectively include a bracket 141, the bracket 141 of the first input resonance body 131 and the bracket 141 of the first output resonance body 151 are located below the accommodating cavity 1111, the bracket 141 of the second input resonance body 133 and the bracket 141 of the second output resonance body 153 are located above the accommodating cavity 1111, a plurality of first input resonance rods 1311 and a plurality of first output resonance rods 1511 extend upward from the corresponding brackets 141, a plurality of second input resonance rods 1331 and a plurality of second output resonance rods 1531 extend downward from the corresponding brackets 141, in other words, in this embodiment, the second input resonance body 133 and the second output resonance body 153 of the first embodiment are reversed in the up and down directions, and the structural direction of this embodiment can be adjusted according to the needs of the user. The paths for importing and exporting electromagnetic signals in this embodiment are the same, so they are not repeated.

[0051] In summary, the resonant filter of the present application is designed by assembling an input resonant component, an output resonant component and an isolation plate. The input resonant component and the output resonant component are symmetrically arranged relative to the isolation plate. The input resonant component and the output resonant component respectively include two resonant bodies, the two resonant bodies are parallel to each other, the resonant bodies have multiple resonant rods, the multiple resonant rods of the two resonant bodies are staggered, and the resonant rods at one end of the two resonant bodies correspond to each other. In this way, the resonant filter of the present application has a simple structure and is easy to produce.

[0052] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0053] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention of the present invention through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A resonant filter, characterized in that: include: A housing having a receiving cavity; An input resonance component is located in the accommodating cavity, the input resonance component comprises a first input resonance body and a second input resonance body, the first input resonance body has a plurality of first input resonance rods, the second input resonance body has a plurality of second input resonance rods, the second input resonance body is located on one side of the first input resonance body, and the plurality of second input resonance rods are staggered with the plurality of first input resonance rods; An output resonance component is located in the accommodating cavity, the output resonance component comprises a first output resonance body and a second output resonance body, the first output resonance body has a plurality of first output resonance rods, the second output resonance body has a plurality of second output resonance rods, the first output resonance body is located on one side of the first input resonance body, the second output resonance body is located on one side of the first output resonance body, and the plurality of second output resonance rods are staggered with the plurality of first output resonance rods; as well as An isolation plate is located in the accommodating cavity, and the isolation plate is located between the first input resonant body and the first output resonant body. The first input resonant rod at one end of the first input resonant body extending out of the isolation plate corresponds to the first output resonant rod at one end of the first output resonant body extending out of the isolation plate.

2. The resonant filter according to claim 1, characterized in that The first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body respectively include a plurality of baffles, and the plurality of baffles are respectively located between two adjacent first input resonant rods, between two adjacent second input resonant rods, between two adjacent first output resonant rods and between two adjacent second output resonant rods.

3. The resonant filter according to claim 2, characterized in that One baffle is respectively provided between two adjacent first input resonance rods and between two adjacent first output resonance rods, and two baffles are respectively provided between two adjacent second input resonance rods and between two adjacent second output resonance rods.

4. The resonant filter according to claim 2, characterized in that The first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body also include brackets, multiple blocking plates extend upward from the brackets, and multiple first input resonant rods, multiple second input resonant rods, multiple first output resonant rods and multiple second output resonant rods extend upward from the brackets, respectively.

5. The resonant filter according to claim 4, characterized in that The first input resonance rod, the second input resonance rod, the first output resonance rod and the second output resonance rod are respectively formed integrally with the bracket and the blocking piece.

6. The resonant filter according to claim 1, characterized in that The first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body respectively include brackets, and a plurality of the first input resonant rods, a plurality of the second input resonant rods, a plurality of the first output resonant rods and a plurality of the second output resonant rods respectively extend upward from the brackets, wherein two adjacent first input resonant rods, two adjacent second input resonant rods, two adjacent first output resonant rods and two adjacent second output resonant rods are arranged on the brackets with spacings between them.

7. The resonant filter according to claim 6, characterized in that The distance between two adjacent first input resonance rods is smaller than the distance between two adjacent second input resonance rods, and the distance between two adjacent first output resonance rods is smaller than the distance between two adjacent second output resonance rods.

8. The resonant filter according to claim 6, characterized in that The first input resonance rod, the second input resonance rod, the first output resonance rod and the second output resonance rod are respectively formed integrally with the bracket.

9. The resonant filter according to any one of claims 4 to 8, characterized in that The first input resonance rod, the second input resonance rod, the first output resonance rod and the second output resonance rod respectively include a connecting rod and a resonance rod member, one end of the connecting rod extends upward from the bracket, and one end of the resonance rod member extends from the other end of the corresponding connecting rod.

10. The resonant filter according to claim 9, characterized in that The resonant rod comprises a resonant opening, and the resonant opening is arranged toward a first direction or a second direction, and the first direction is opposite to the second direction.

11. The resonant filter according to claim 10, characterized in that The resonant rod member includes a first cross bar, a straight bar and a second cross bar, one end of the first cross bar extends from the first direction of the other end of the connecting rod, one end of the straight bar extends upward from the other end of the first cross bar, and one end of the second cross bar extends from the second direction of the other end of the straight bar, and the first cross bar, the second cross bar and the straight bar constitute the resonant opening.

12. The resonant filter according to claim 11, characterized in that The first crossbar and the second crossbar have different lengths.

13. The resonant filter according to claim 1, characterized in that The shell includes a shell, an input hole, an output hole, an input device and an output device, the accommodating cavity is located in the shell, the input hole and the output hole pass through the shell and are connected to the accommodating cavity, the input device is assembled in the input hole, the input end of the first input resonant body has an input tap, the input tap passes through the input device, the output device is assembled in the output hole, the output end of the first output resonant body has an output tap, and the output tap passes through the output device.

14. The resonant filter according to claim 1, characterized in that The first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body respectively include brackets, the bracket of the first input resonant body and the bracket of the first output resonant body are located below the accommodating cavity, the bracket of the second input resonant body and the bracket of the second output resonant body are located above the accommodating cavity, a plurality of first input resonant rods and a plurality of first output resonant rods respectively extend upward from the corresponding brackets, and a plurality of second input resonant rods and a plurality of second output resonant rods respectively extend downward from the corresponding brackets.

15. The resonant filter according to claim 1, characterized in that The first input resonant body, the second input resonant body, the first output resonant body and the second output resonant body are parallel to each other.

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