A filter and a communication device

Abstract

The present application discloses a filter and a communication device. The filter includes: a housing having a first direction and a second direction perpendicular to each other; a plurality of transmitting filter branches and a plurality of receiving filter branches, both disposed on the housing; a plurality of first ports disposed on the housing and corresponding to the transmitting filter branches, the plurality of first ports being arranged in a column and distributed along the second direction on the side of the transmitting filter branches away from the receiving filter branches; and a plurality of second ports disposed on the housing and corresponding to the receiving filter branches, the plurality of second ports being arranged in a column and distributed along the second direction on the side of the receiving filter branches away from the transmitting filter branches. In this way, the volume of the filter can be reduced.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and particularly to a filter and a communication device. Background Art

[0002] In a base station system of mobile communication, a transmitting antenna transmits a communication signal carrying communication data within a specific frequency range, and a receiving antenna receives the communication signal.

[0003] Due to the influence of noise, the communication signal received by the receiving antenna not only includes the communication signal carrying communication data within the above specific frequency range, but also includes many clutter or interference signals outside the above specific frequency range. To obtain the communication signal carrying communication data within the specific frequency range transmitted by the transmitting antenna from the signal received by the receiving antenna, it is usually necessary to filter with a filter to filter out the clutter or interference signals outside the specific frequency of the communication signal carrying the communication data.

[0004] The inventors of this application found in long-term R & D work that the port positions and installation hole positions of existing filters are unreasonably set, resulting in a relatively large cavity area occupied by the filter row cavity, and thus a relatively large volume of the filter. Summary of the Invention

[0005] This application provides a filter and a communication device to reduce the volume of the filter.

[0006] To solve the above technical problems, a technical solution adopted by this application is: to provide a filter. The filter includes: a housing having a first direction and a second direction perpendicular to the first direction; a plurality of transmitting filter branches and a plurality of receiving filter branches, both arranged on the housing; a plurality of first ports arranged on the housing, and the first ports are correspondingly arranged with the transmitting filter branches. The plurality of first ports are in a column and arranged along the second direction on the side of the transmitting filter branches away from the receiving filter branches; a plurality of second ports arranged on the housing, and the second ports are correspondingly arranged with the receiving filter branches. The plurality of second ports are in a column and arranged along the second direction on the side of the receiving filter branches away from the transmitting filter branches.

[0007] Among them, the plurality of transmitting filter branches include a first transmitting filter branch and a second transmitting filter branch. The first transmitting filter branch is arranged on the first side of the housing, and the second transmitting filter branch is arranged on the second side of the housing. The plurality of first ports are arranged on the first side of the housing. The first transmitting filter branch is connected to the corresponding first port through a connecting wire, and the second transmitting filter branch is connected to the corresponding first port through a connecting wire passing through the housing; among them, the plurality of first ports are correspondingly arranged with the middle area of the first transmitting filter branch.

[0008] Among them, the first transmitting filter branch includes two first sub-transmitting filter branches. The two first sub-transmitting filter branches are arranged along the second direction, and multiple filter cavities in the first sub-transmitting filter branch are arranged in three rows along the first direction; the second transmitting filter branch includes four second sub-transmitting filter branches. The four second sub-transmitting filter branches are arranged along the second direction, and multiple filter cavities in the second sub-transmitting filter branch are arranged in two columns along the second direction.

[0009] Among them, four first ports are provided on the first side of the housing. The first first sub-transmitting filter branch and the first second sub-transmitting filter branch are connected to the first first port. The second first sub-transmitting filter branch and the first second sub-transmitting filter branch are connected to the fourth first port. The second second sub-transmitting filter branch is connected to the second first port. The third second sub-transmitting filter branch is connected to the third first port.

[0010] Among them, the multiple receiving filter branches include a first receiving filter branch and a second receiving filter branch. The first receiving filter branch is provided on the first side of the housing. The second receiving filter branch is provided on the second side of the housing. Multiple second ports are provided on the first side of the housing. The first receiving filter branch is connected to the corresponding second port through a connecting wire. The second receiving filter branch is connected to the corresponding second port through a connecting wire passing through the housing.

[0011] Among them, the first receiving filter branch includes six first sub-receiving filter branches. The six first sub-receiving filter branches are arranged along the second direction. Multiple filter cavities in the first first sub-receiving filter branch and multiple filter cavities in the second first sub-receiving filter branch are arranged in three columns along the second direction. Multiple filter cavities in the third first sub-receiving filter branch and multiple filter cavities in the fourth first sub-receiving filter branch are both arranged in two columns along the second direction. Multiple filter cavities in the fifth first sub-receiving filter branch and multiple filter cavities in the sixth first sub-receiving filter branch are arranged in three columns along the second direction; the second receiving filter branch includes six second sub-receiving filter branches. The six second sub-receiving filter branches are arranged along the second direction.

[0012] Among them, eight second ports are provided on the first side of the housing. The first first sub-receiving filter branch and the second first sub-receiving filter branch of the first path are connected to the first second port. The third first sub-receiving filter branch of the first path is connected to the fourth second port. The fourth first sub-receiving filter branch of the first path is connected to the fifth second port. The fifth first sub-receiving filter branch and the sixth first sub-receiving filter branch of the first path are connected to the eighth second port. The first second sub-receiving filter branch of the first path is connected to the second second port. The second second sub-receiving filter branch and the third second sub-receiving filter branch of the first path are connected to the third second port. The fourth second sub-receiving filter branch and the fifth second sub-receiving filter branch of the first path are connected to the sixth second port. The sixth second sub-receiving filter branch of the first path is connected to the seventh second port.

[0013] Among them, the filter further includes: two first common cavities provided on the first side of the housing. The first first common cavity is coupled to the first first sub-transmitting filter branch, the first first sub-receiving filter branch, the second first sub-receiving filter branch, and the third first sub-receiving filter branch of the first path. The second first common cavity is coupled to the second first sub-transmitting filter branch, the fourth first sub-receiving filter branch, the fifth first sub-receiving filter branch, and the sixth first sub-receiving filter branch of the first path. Four second common cavities are provided on the second side of the housing. The first second common cavity is coupled to the first second sub-transmitting filter branch and the first second sub-receiving filter branch of the first path. The second second common cavity is coupled to the second second sub-transmitting filter branch, the second second sub-receiving filter branch, and the third second sub-receiving filter branch of the first path. The third second common cavity is coupled to the third second sub-transmitting filter branch, the fourth second sub-receiving filter branch, and the fifth second sub-receiving filter branch of the first path. The fourth second common cavity is coupled to the fourth second sub-transmitting filter branch and the sixth second sub-receiving filter branch of the first path.

[0014] Among them, mounting holes are provided on the side wall of the housing along the first direction, and at least part of the mounting holes are arranged close to the first port. Among them, the mounting holes include a first mounting hole and a second mounting hole provided on the first side of the housing. The first mounting hole is located on the side of the first transmitting filter branch, and the second mounting hole is located on the side of the first receiving filter branch.

[0015] To solve the above technical problems, a technical solution adopted in this application is: to provide a communication device. The communication device includes an antenna and the above filter, and the filter filters the received and transmitted signals of the antenna.

[0016] The beneficial effects of the embodiments of the present application are as follows: Different from the prior art, the filter of the embodiments of the present application includes: a housing having a first direction and a second direction perpendicular to each other; a plurality of transmitting filter branches and a plurality of receiving filter branches, both arranged on the housing; a plurality of first ports arranged on the housing and corresponding to the transmitting filter branches, the plurality of first ports being arranged in a column and along the second direction on the side of the transmitting filter branches away from the receiving filter branches; a plurality of second ports arranged on the housing and corresponding to the receiving filter branches, the plurality of second ports being arranged in a column and along the second direction on the side of the receiving filter branches away from the transmitting filter branches. In this way, the first ports of the filter of the embodiments of the present application are correspondingly arranged with the transmitting filter branches, the plurality of first ports are arranged in a column and along the second direction on the side of the transmitting filter branches away from the receiving filter branches, which can enable the plurality of first ports to be arranged near the transmitting filter branches, make the cavity arrangement structure of the transmitting filter branches more reasonable, and reduce the volume of the filter; and the plurality of second ports are arranged on the housing, the second ports are correspondingly arranged with the receiving filter branches, the plurality of second ports are arranged in a column and along the second direction on the side of the receiving filter branches away from the transmitting filter branches, which can enable the plurality of second ports to be arranged near the receiving filter branches and be dispersed, make the cavity arrangement structure of the receiving filter branches more reasonable, and reduce the volume of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of one side of an embodiment of the filter of the present application;

[0019] Figure 2 is Figure 1 a side view schematic diagram of the filter of the embodiment;

[0020] Figure 3 is Figure 1 a schematic structural diagram of the other side of the filter of the embodiment;

[0021] Figure 4 is a schematic structural diagram of an embodiment of the communication device of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0023] The terms "first" and "second" in the present application are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0024] The present application first proposes a filter, as Figures 1 to 3 shown, Figure 1 is a schematic structural diagram of one side of an embodiment of the filter of the present application; Figure 2 is Figure 1 a side view schematic diagram of the embodiment filter; Figure 3 is Figure 1 a schematic structural diagram of the other side of the embodiment filter. The filter 10 in this embodiment includes: a housing 11, a plurality of transmitting filter branches 12, a plurality of receiving filter branches 13, a plurality of first ports 14 and a plurality of second ports 15; wherein, the housing 11 has a first direction y and a second direction x, and the first direction y is perpendicular to the second direction x; the plurality of transmitting filter branches 12 and the plurality of receiving filter branches 13 are both arranged on the housing 11; the plurality of first ports 14 are arranged on the housing 11, and the first ports 14 are correspondingly arranged with the transmitting filter branches 12, and the plurality of first ports 1 are arranged in a column and 4 are arranged along the second direction x on the side of the transmitting filter branches 12 away from the receiving filter branches 13; the plurality of second ports 15 are arranged on the housing 11, and the second ports 15 are correspondingly arranged with the receiving filter branches 13, and the plurality of second ports 15 are arranged in a column and arranged along the second direction x on the side of the receiving filter branches 13 away from the transmitting filter branches 12.

[0025] Different from the prior art, the first ports 14 of the filter 10 in this embodiment are correspondingly arranged with the transmitting filter branch 12. The multiple first ports 14 are arranged in a column and are arranged along the second direction x on the side of the transmitting filter branch 12 away from the receiving filter branch 13, which can enable the multiple first ports 14 to be arranged near the transmitting filter branch 12, can make the cavity arrangement structure of the transmitting filter branch 12 be more reasonably arranged, and can reduce the volume of the filter 10; and the multiple second ports 15 are arranged on the housing 11, and the second ports 15 are correspondingly arranged with the receiving filter branch 13. The multiple second ports 15 are arranged in a column and are arranged along the second direction x on the side of the receiving filter branch 13 away from the transmitting filter branch 12, which can enable the multiple second ports 15 to be arranged near the receiving filter branch 13 and are dispersedly arranged, can make the cavity arrangement structure of the receiving filter branch 13 be more reasonably arranged, and can reduce the volume of the filter 10.

[0026] Optionally, the multiple transmitting filter branches 12 in this embodiment include a first transmitting filter branch 121 and a second transmitting filter branch 122. The first transmitting filter branch 121 is arranged on the first side 111 of the housing 11, the second transmitting filter branch 122 is arranged on the second side 112 of the housing 11, the multiple first ports 14 are arranged on the first side 111 of the housing 11, the first transmitting filter branch 121 is connected to the corresponding first port 14 through a connecting line (not marked in the figure), and the second transmitting filter branch 122 is connected to the corresponding first port 14 through a connecting line (not marked in the figure) passing through the housing 11; wherein, the multiple first ports 14 are correspondingly arranged with the middle area of the first transmitting filter branch 121.

[0027] The multiple first ports 14 in this embodiment are arranged on the same side of the housing 11, which is convenient for connecting the filter 10 with external devices.

[0028] Optionally, the first transmitting filter branch 121 in this embodiment includes two first sub-transmitting filter branches (not marked in the figure). The two first sub-transmitting filter branches are arranged along the second direction x, and the multiple filter cavities 123 in the first sub-transmitting filter branch are arranged in three rows along the first direction y; the second transmitting filter branch 122 includes four second sub-transmitting filter branches (not marked in the figure). The four second sub-transmitting filter branches are arranged along the second direction x, and the multiple filter cavities 124 in the second sub-transmitting filter branch are arranged in two columns along the second direction x.

[0029] Optionally, four first ports 14 are provided on the first side 111 of the housing 11 of this embodiment. The first first sub-transmission filtering branch and the first second sub-transmission filtering branch are connected to the first first port 14. The second first sub-transmission filtering branch and the first second sub-transmission filtering branch are connected to the fourth first port 14. The second second sub-transmission filtering branch is connected to the second first port 14. The third second sub-transmission filtering branch is connected to the third first port 14.

[0030] Optionally, the multiple receiving filtering branches 13 of this embodiment include a first receiving filtering branch 131 and a second receiving filtering branch 132. The first receiving filtering branch 131 is provided on the first side 111 of the housing 11. The second receiving filtering branch 132 is provided on the second side 112 of the housing 11. A plurality of second ports 15 are provided on the first side 111 of the housing 11. The first receiving filtering branch 131 is connected to the corresponding second port 15 through a connecting line (not labeled in the figure). The second receiving filtering branch 132 is connected to the corresponding second port 15 through a connecting line (not labeled in the figure) passing through the housing 11.

[0031] The multiple second ports 15 of this embodiment are provided on the same side of the housing 11, which is convenient for the filter 10 to be connected to external devices.

[0032] Optionally, the first receiving filtering branch 131 of this embodiment includes six first sub-receiving filtering branches (not labeled in the figure). The six first sub-receiving filtering branches are arranged along the second direction x. The multiple filtering cavities 133 in the first first sub-receiving filtering branch and the multiple filtering cavities 133 in the second first sub-receiving filtering branch are arranged in three columns along the second direction x. The multiple filtering cavities 133 in the third first sub-receiving filtering branch and the multiple filtering cavities 133 in the fourth first sub-receiving filtering branch are both arranged in two columns along the second direction x. The multiple filtering cavities 133 in the fifth first sub-receiving filtering branch and the multiple filtering cavities 133 in the sixth first sub-receiving filtering branch are arranged in three columns along the second direction x.

[0033] Optionally, the second receiving filtering branch 132 of this embodiment includes six second sub-receiving filtering branches (not labeled in the figure). The six second sub-receiving filtering branches are arranged along the second direction x.

[0034] Optionally, eight second ports 15 are provided on the first side 111 of the housing 11 of this embodiment. The first first sub-receiving filter branch and the second first sub-receiving filter branch are connected to the first second port 15. The third first sub-receiving filter branch is connected to the fourth second port 15. The fourth first sub-receiving filter branch is connected to the fifth second port 15. The fifth first sub-receiving filter branch and the sixth first sub-receiving filter branch are connected to the eighth second port 15. The first second sub-receiving filter branch is connected to the second second port 15 through a connecting line (not marked in the figure) passing through the housing 11. The second second sub-receiving filter branch and the third second sub-receiving filter branch are connected to the third second port 15 through a connecting line (not marked in the figure) passing through the housing 11. The fourth second sub-receiving filter branch and the fifth second sub-receiving filter branch are connected to the sixth second port 15 through a connecting line (not marked in the figure) passing through the housing 11. The sixth second sub-receiving filter branch is connected to the seventh second port 15 through a connecting line (not marked in the figure) passing through the housing 11.

[0035] Optionally, the filter 10 of this embodiment further includes: a first common cavity 161 and a first common cavity 162. The first common cavity 161 and the first common cavity 162 are provided on the first side 111 of the housing 10. The first common cavity 161 is coupled to the first first sub-transmitting filter branch, the first first sub-receiving filter branch, the second first sub-receiving filter branch, and the third first sub-receiving filter branch. The first common cavity 162 is coupled to the second first sub-transmitting filter branch, the fourth first sub-receiving filter branch, the fifth first sub-receiving filter branch, and the sixth first sub-receiving filter branch. The filter 10 of this embodiment further includes: a second common cavity 171, a second common cavity 172, a second common cavity 173, and a second common cavity 174. The second common cavity 171, the second common cavity 172, the second common cavity 173, and the second common cavity 174 are provided on the second side 112 of the housing 11. The second common cavity 171 is coupled to the first second sub-transmitting filter branch and the first second sub-receiving filter branch. The second common cavity 172 is coupled to the second second sub-transmitting filter branch, the second second sub-receiving filter branch, and the third second sub-receiving filter branch. The second common cavity 173 is coupled to the third second sub-transmitting filter branch, the fourth second sub-receiving filter branch, and the fifth second sub-receiving filter branch. The second common cavity 174 is coupled to the fourth second sub-transmitting filter branch and the sixth second sub-receiving filter branch.

[0036] Among them, the first first-sub-transmission filtering branch of this embodiment includes ten cascaded filtering cavities 123. The first filtering cavity 123 is coupled to the common cavity 161, and the tenth filtering cavity 123 is connected to the first first port 14. Cross-couplings are formed between the first filtering cavity 123 and the third filtering cavity 123, between the third filtering cavity 123 and the fifth filtering cavity 123, between the fifth filtering cavity 123 and the eighth filtering cavity 123, and between the sixth filtering cavity 123 and the eighth filtering cavity 123.

[0037] The second first-sub-transmission filtering branch of this embodiment includes ten cascaded filtering cavities 123. The first filtering cavity 123 is coupled to the common cavity 162, and the tenth filtering cavity 123 is connected to the fourth first port 14. Cross-couplings are formed between the first filtering cavity 123 and the third filtering cavity 123, between the first filtering cavity 123 and the fourth filtering cavity 123, between the fourth filtering cavity 123 and the sixth filtering cavity 123, and between the sixth filtering cavity 123 and the eighth filtering cavity 123.

[0038] The first second-sub-transmission filtering branch of this embodiment includes eight cascaded filtering cavities 124. The first filtering cavity 124 is coupled to the common cavity 171, and the tenth filtering cavity 124 is connected to the first first port 14. Cross-couplings are formed between the common cavity 171 and the second filtering cavity 124, between the second filtering cavity 124 and the fourth filtering cavity 124, between the fourth filtering cavity 124 and the sixth filtering cavity 124, and between the sixth filtering cavity 124 and the eighth filtering cavity 124.

[0039] The second second-sub-transmission filtering branch of this embodiment includes ten cascaded filtering cavities 124. The first filtering cavity 124 is coupled to the common cavity 172, and the tenth filtering cavity 124 is connected to the second first port 14. Cross-couplings are formed between the second filtering cavity 124 and the fourth filtering cavity 124, between the fourth filtering cavity 124 and the sixth filtering cavity 124, between the sixth filtering cavity 124 and the eighth filtering cavity 124, and between the eighth filtering cavity 124 and the tenth filtering cavity 124.

[0040] The third second-sub-transmission filtering branch of this embodiment includes ten cascaded filtering cavities 124. The first filtering cavity 124 is coupled to the common cavity 173, and the tenth filtering cavity 124 is connected to the third first port 14. Cross-couplings are formed between the second filtering cavity 124 and the fourth filtering cavity 124, between the fourth filtering cavity 124 and the sixth filtering cavity 124, between the sixth filtering cavity 124 and the eighth filtering cavity 124, and between the eighth filtering cavity 124 and the tenth filtering cavity 124.

[0041] Among them, the cavity arrangement structure of the second sub-transmission filter branch of the second path and the cavity arrangement structure of the second sub-transmission filter branch of the third path are axially symmetrically arranged along the second direction X.

[0042] The fourth second sub-transmission filter branch of this embodiment includes eight cascaded filter cavities 124. The first filter cavity 124 is coupled to the common cavity 174, and the tenth filter cavity 124 is connected to the fourth first port 14; and cross-couplings are formed between the common cavity 174 and the second filter cavity 124, between the second filter cavity 124 and the fourth filter cavity 124, between the fourth filter cavity 124 and the sixth filter cavity 124, and between the sixth filter cavity 124 and the eighth filter cavity 124.

[0043] Among them, the cavity arrangement structure of the fourth second sub-transmission filter branch and the cavity arrangement structure of the second sub-transmission filter branch of the first path are axially symmetrically arranged along the second direction X.

[0044] Among them, the first first sub-reception filter branch of this embodiment includes eight cascaded filter cavities 133. The first filter cavity 133 is coupled to the common cavity 161, and the eighth filter cavity 133 is connected to the first second port 15; and cross-couplings are formed between the first filter cavity 133 and the third filter cavity 133, and between the first filter cavity 133 and the fourth filter cavity 133.

[0045] The second first sub-reception filter branch of this embodiment includes seven cascaded filter cavities 133. The first filter cavity 133 is coupled to the common cavity 161, and the seventh filter cavity 133 is connected to the first second port 15; and cross-couplings are formed between the third filter cavity 133 and the fifth filter cavity 133, and between the fifth filter cavity 133 and the seventh filter cavity 133.

[0046] The third first sub-reception filter branch of this embodiment includes eight cascaded filter cavities 133. The first filter cavity 133 is coupled to the common cavity 161, and the eighth filter cavity 133 is connected to the fourth second port 15; and cross-couplings are formed between the first filter cavity 133 and the third filter cavity 133, between the first filter cavity 133 and the fourth filter cavity 133, and between the fourth filter cavity 133 and the sixth filter cavity 133.

[0047] The fourth first sub-reception filter branch of this embodiment includes eight cascaded filter cavities 133. The first filter cavity 133 is coupled to the common cavity 162, and the eighth filter cavity 133 is connected to the fifth second port 15; and cross-couplings are formed between the third filter cavity 133 and the fifth filter cavity 133, between the fifth filter cavity 133 and the eighth filter cavity 133, and between the sixth filter cavity 133 and the eighth filter cavity 133.

[0048] The fifth first sub-receiving filter branch of this embodiment includes seven filter cavities 133 arranged in cascade. The first filter cavity 133 is coupled to the common cavity 162, and the seventh filter cavity 133 is connected to the eighth second port 15. Moreover, cross-couplings are formed between the third filter cavity 133 and the fifth filter cavity 133, and between the fifth filter cavity 133 and the seventh filter cavity 133.

[0049] The sixth first sub-receiving filter branch of this embodiment includes eight filter cavities 133 arranged in cascade. The first filter cavity 133 is coupled to the common cavity 162, and the eighth filter cavity 133 is connected to the eighth second port 15. Moreover, cross-couplings are formed between the first filter cavity 133 and the third filter cavity 133, and between the first filter cavity 133 and the fourth filter cavity 133.

[0050] Among them, the cavity arrangement structure of the first first sub-receiving filter branch and the cavity arrangement structure of the sixth first sub-receiving filter branch are axially symmetrically arranged along the second direction X; the cavity arrangement structure of the second first sub-receiving filter branch and the cavity arrangement structure of the fifth first sub-receiving filter branch are axially symmetrically arranged along the second direction X; the cavity arrangement structure of the third first sub-receiving filter branch and the cavity arrangement structure of the fourth first sub-receiving filter branch are centrosymmetrically arranged.

[0051] Among them, the first second sub-receiving filter branch of this embodiment includes nine filter cavities 134 arranged in cascade. The first filter cavity 134 is coupled to the common cavity 171, and the ninth filter cavity 134 is connected to the second second port 15. Moreover, cross-couplings are formed between the second filter cavity 134 and the fourth filter cavity 134, between the fourth filter cavity 134 and the sixth filter cavity 134, and between the seventh filter cavity 134 and the ninth filter cavity 134.

[0052] The second second sub-receiving filter branch of this embodiment includes seven filter cavities 134 arranged in cascade. The first filter cavity 134 is coupled to the common cavity 172, and the seventh filter cavity 134 is connected to the third second port 15. Moreover, a cross-coupling is formed between the fifth filter cavity 134 and the seventh filter cavity 134.

[0053] The third second sub-receiving filter branch of this embodiment includes eight filter cavities 134 arranged in cascade. The first filter cavity 134 is coupled to the common cavity 172, and the eighth filter cavity 134 is connected to the third second port 15. Moreover, cross-couplings are formed between the first filter cavity 134 and the third filter cavity 134, between the third filter cavity 134 and the fifth filter cavity 134, and between the fifth filter cavity 134 and the seventh filter cavity 134.

[0054] The fourth second sub-receiving filter branch of this embodiment includes eight filter cavities 134 arranged in cascade. The first filter cavity 134 is coupled to the common cavity 173, and the eighth filter cavity 134 is connected to the sixth second port 15. Cross-couplings are formed between the first filter cavity 134 and the third filter cavity 134, between the third filter cavity 134 and the fifth filter cavity 134, and between the fifth filter cavity 134 and the seventh filter cavity 134.

[0055] The fifth second sub-receiving filter branch of this embodiment includes seven filter cavities 134 arranged in cascade. The first filter cavity 134 is coupled to the common cavity 173, and the seventh filter cavity 134 is connected to the sixth second port 15. Cross-couplings are formed between the fifth filter cavity 134 and the seventh filter cavity 134.

[0056] The sixth second sub-receiving filter branch of this embodiment includes nine filter cavities 134 arranged in cascade. The first filter cavity 134 is coupled to the common cavity 174, and the ninth filter cavity 134 is connected to the seventh second port 15. Cross-couplings are formed between the second filter cavity 134 and the fourth filter cavity 134, between the fourth filter cavity 134 and the sixth filter cavity 134, and between the seventh filter cavity 134 and the ninth filter cavity 134.

[0057] Among them, the cavity arrangement structure of the first first sub-receiving filter branch and the cavity arrangement structure of the sixth first sub-receiving filter branch are axially symmetrically arranged along the second direction X; the cavity arrangement structure of the second first sub-receiving filter branch and the cavity arrangement structure of the fifth first sub-receiving filter branch are axially symmetrically arranged along the second direction X; the cavity arrangement structure of the third first sub-receiving filter branch and the cavity arrangement structure of the fourth first sub-receiving filter branch are axially symmetrically arranged along the second direction X.

[0058] Among them, the size of the filter cavity in the transmitting filter branch of this embodiment is greater than or equal to the size of the filter cavity in the receiving filter branch.

[0059] Optionally, mounting holes (not labeled in the figure) are provided on the side wall of the housing 11 of this embodiment along the first direction y, and at least part of the mounting holes are close to the first port 14.

[0060] Among them, the mounting holes of this embodiment include a first mounting hole 181 and a second mounting hole 182. The first mounting hole 181 and the second mounting hole 182 are provided on the first side 111 of the housing 11. The first mounting hole 181 is located on the side of the first transmitting filter branch 121, and the second mounting hole 182 is located on the side of the first receiving filter branch 131.

[0061] The mounting holes further include a third mounting hole 183 and a fourth mounting hole 184. The third mounting hole 183 and the fourth mounting hole 184 are disposed on the second side 112 of the housing 111. The third mounting hole 183 is located on the side of the second transmitting filter branch 122, and the fourth mounting hole 184 is located on the side of the second receiving filter branch 132.

[0062] The first mounting hole 181 and the third mounting hole 183 are correspondingly arranged, and the second mounting hole 182 and the fourth mounting hole 184 are correspondingly arranged.

[0063] The positions of the mounting holes in this embodiment can be reasonably set according to the structure of the cavity row, which can reasonably utilize the cavity space and reduce the volume of the filter 10.

[0064] The present application further provides a communication device, such as Figure 4 shown in Figure 4 FIG. 13 is a schematic structural diagram of an embodiment of the communication device of the present application. The communication device 60 in this embodiment includes an antenna 61 and a filter 10. The filter 10 filters the transmitted and received signals of the antenna 61.

[0065] The filter 10 in this embodiment is similar to the above-mentioned filter 10, and will not be elaborated here.

[0066] Different from the prior art, the filter in the embodiment of the present application includes: a housing having a first direction and a second direction, the first direction and the second direction being perpendicular; a plurality of transmitting filter branches and a plurality of receiving filter branches, both disposed on the housing; a plurality of first ports disposed on the housing, and the first ports are correspondingly arranged with the transmitting filter branches. The plurality of first ports are arranged in a column and are arranged along the second direction on the side of the transmitting filter branch away from the receiving filter branch; a plurality of second ports disposed on the housing, and the second ports are correspondingly arranged with the receiving filter branches. The plurality of second ports are arranged in a column and are arranged along the second direction on the side of the receiving filter branch away from the transmitting filter branch. In this way, the first ports of the filter in the embodiment of the present application are correspondingly arranged with the transmitting filter branches, and the plurality of first ports are arranged in a column and are arranged along the second direction on the side of the transmitting filter branch away from the receiving filter branch, which can make the plurality of first ports arranged near the transmitting filter branch, can make the cavity row structure of the transmitting filter branch more reasonably arranged, and can reduce the volume of the filter; and the plurality of second ports are disposed on the housing, and the second ports are correspondingly arranged with the receiving filter branches. The plurality of second ports are arranged in a column and are arranged along the second direction on the side of the receiving filter branch away from the transmitting filter branch, which can make the plurality of second ports arranged near the receiving filter branch and are dispersedly arranged, and can make the cavity row structure of the receiving filter branch more reasonably arranged to reduce the volume of the filter.

[0067] The above are only the embodiments of the present application, and do not thereby limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall equally be included within the patent protection scope of the present application.

Claims

1. A filter, characterized in that, The filter includes: a housing having a first direction and a second direction, the first direction being perpendicular to the second direction; a plurality of transmit filter branches and a plurality of receive filter branches, both disposed on the housing; a plurality of first ports disposed on the housing, and the first ports are correspondingly disposed with the transmit filter branches, the plurality of first ports are arranged in a column and are arranged on one side of the transmit filter branches away from the receive filter branches along the second direction; a plurality of second ports disposed on the housing, and the second ports are correspondingly disposed with the receive filter branches, the plurality of second ports are arranged in a column and are arranged on one side of the receive filter branches away from the transmit filter branches along the second direction; wherein, the plurality of transmit filter branches include a first transmit filter branch and a second transmit filter branch, the first transmit filter branch is disposed on the first side of the housing, the second transmit filter branch is disposed on the second side of the housing, the plurality of first ports are disposed on the first side of the housing, the first transmit filter branch is connected to the corresponding first port through a connecting line, and the second transmit filter branch is connected to the corresponding first port through a connecting line passing through the housing; wherein, the plurality of first ports are correspondingly disposed with the middle region of the first transmit filter branch; wherein, the plurality of receive filter branches include a first receive filter branch and a second receive filter branch, the first receive filter branch is disposed on the first side of the housing, the second receive filter branch is disposed on the second side of the housing, the plurality of second ports are disposed on the first side of the housing, the first receive filter branch is connected to the corresponding second port through a connecting line, and the second receive filter branch is connected to the corresponding second port through a connecting line passing through the housing.

2. The filter according to claim 1, characterized in that, The first transmit filter branch includes two first sub-transmit filter branches, the two first sub-transmit filter branches are arranged along the second direction, and a plurality of filter cavities in the first sub-transmit filter branch are arranged in three rows along the first direction; The second transmit filter branch includes four second sub-transmit filter branches, the four second sub-transmit filter branches are arranged along the second direction, and a plurality of filter cavities in the second sub-transmit filter branch are arranged in two columns along the second direction.

3. The filter according to claim 2, characterized in that, Four of the first ports are disposed on the first side of the housing, the first first sub-transmit filter branch and the first second sub-transmit filter branch are connected to the first first port, the second first sub-transmit filter branch and the first second sub-transmit filter branch are connected to the fourth first port, the second second sub-transmit filter branch is connected to the second first port, and the third second sub-transmit filter branch is connected to the third first port.

4. The filter according to claim 2, wherein The first receiving filter branch includes six first sub - receiving filter branches. The six first sub - receiving filter branches are arranged along the second direction. The multiple filter cavities in the first first sub - receiving filter branch and the multiple filter cavities in the second first sub - receiving filter branch are arranged in three columns along the second direction. The multiple filter cavities in the third first sub - receiving filter branch and the multiple filter cavities in the fourth first sub - receiving filter branch are both arranged in two columns along the second direction. The multiple filter cavities in the fifth first sub - receiving filter branch and the multiple filter cavities in the sixth first sub - receiving filter branch are arranged in three columns along the second direction; The second receiving filter branch includes six second sub - receiving filter branches. The six second sub - receiving filter branches are arranged along the second direction.

5. The filter according to claim 4, wherein Eight second ports are provided on the first side of the housing. The first first sub - receiving filter branch and the second first sub - receiving filter branch are connected to the first second port. The third first sub - receiving filter branch is connected to the fourth second port. The fourth first sub - receiving filter branch is connected to the fifth second port. The fifth first sub - receiving filter branch and the sixth first sub - receiving filter branch are connected to the eighth second port. The first second sub - receiving filter branch is connected to the second second port. The second second sub - receiving filter branch and the third second sub - receiving filter branch are connected to the third second port. The fourth second sub - receiving filter branch and the fifth second sub - receiving filter branch are connected to the sixth second port. The sixth second sub - receiving filter branch is connected to the seventh second port.

6. The filter according to claim 4, characterized in that, The filter further includes: Two first common cavities, which are provided on the first side of the housing. The first first common cavity is coupled to the first first sub - transmitting filter branch, the first first sub - receiving filter branch, the second first sub - receiving filter branch and the third first sub - receiving filter branch. The second first common cavity is coupled to the second first sub - transmitting filter branch, the fourth first sub - receiving filter branch, the fifth first sub - receiving filter branch and the sixth first sub - receiving filter branch; Four second common cavities, which are provided on the second side of the housing. The first second common cavity is coupled to the first second sub - transmitting filter branch and the first second sub - receiving filter branch. The second second common cavity is coupled to the second second sub - transmitting filter branch, the second second sub - receiving filter branch and the third second sub - receiving filter branch. The third second common cavity is coupled to the third second sub - transmitting filter branch, the fourth second sub - receiving filter branch and the fifth second sub - receiving filter branch. The fourth second common cavity is coupled to the fourth second sub - transmitting filter branch and the sixth second sub - receiving filter branch.

7. The filter according to claim 2, characterized in that An installation hole is provided on a side wall of the housing along the first direction, and at least a part of the installation hole is arranged close to the first port. Wherein, the installation hole includes a first installation hole and a second installation hole, which are arranged on the first side of the housing. The first installation hole is located on the side of the first transmitting filter branch, and the second installation hole is located on the side of the first receiving filter branch.

8. A communication device, characterized in that, The communication device includes an antenna and the filter according to any one of claims 1-7, and the filter filters the transceiver signals of the antenna.

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