CN214378779U - Monomer resonance rod, resonance rod and radio frequency cavity filter - Google Patents
Monomer resonance rod, resonance rod and radio frequency cavity filter Download PDFInfo
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- CN214378779U CN214378779U CN202120670785.9U CN202120670785U CN214378779U CN 214378779 U CN214378779 U CN 214378779U CN 202120670785 U CN202120670785 U CN 202120670785U CN 214378779 U CN214378779 U CN 214378779U
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Abstract
The utility model relates to a wave filter technical field discloses a monomer resonance pole, resonance rod and radio frequency cavity filter, and monomer resonance pole is configured to locate in radio frequency cavity filter's the inner chamber for resonance filtering, monomer resonance rod are the slice structure, include: the rod body part extends along the first direction, and one end of the rod body part is used for connecting the inner cavity; the first connecting rod part is fixedly connected to the other end of the rod body part and extends along a second direction perpendicular to the first direction; the second connecting rod part is fixedly connected to the first connecting rod part and is positioned on one side of the first connecting rod part, which is far away from the rod body part, along the first direction; and the third connecting rod part is fixedly connected to the first connecting rod part through at least one second connecting rod part, the third connecting rod part at least comprises a first extension section extending along the second direction, and the first extension section is fixedly connected to one end, far away from the first connecting rod part, of the second connecting rod part along the first direction. The single resonance rod occupies small space, has good heat dissipation capability and good filtering effect.
Description
Technical Field
The utility model relates to a wave filter technical field especially relates to a monomer resonance bar, resonance bar and radio frequency cavity filter.
Background
The radio frequency cavity filter is also called as a radio frequency interference filter, and is mainly used in electronic equipment working at high frequency for filtering and inhibiting signals of useless frequency bands and further leaving signals of the useful frequency bands.
The existing radio frequency cavity filter mainly comprises a cavity, a cover plate covered on the cavity and a resonance part arranged in the cavity, wherein the resonance part is mainly of a columnar structure and is also called as a resonance column. And the plurality of resonant columns filter the radio-frequency signals in a capacitive coupling mode to obtain a desired frequency band. The existing resonant column is mostly in a single columnar structure, the internal space of the cavity is large, the resonant column is not convenient to arrange in the cavity, the heat dissipation capability is poor, and particularly in the field of 5G communication, the application and the filtering effect of the radio frequency cavity filter of the type are greatly limited.
Therefore, it is desirable to provide a single resonant rod, a resonant rod and a rf cavity filter, wherein the single resonant rod and the resonant rod have the advantages of small occupied space, good heat dissipation capability and good filtering effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a monomer resonance pole, its monomer resonance pole has that occupation space is small, heat-sinking capability is good and the effectual advantage of filtering.
To achieve the purpose, the utility model adopts the following technical proposal:
a monolithic resonator rod configured to be disposed in an inner cavity of a radio frequency cavity filter for resonant filtering, the monolithic resonator rod being a sheet-like structure, the monolithic resonator rod comprising:
a shaft portion extending in a first direction, one end of the shaft portion being adapted to be connected to the inner cavity;
the first connecting rod part is fixedly connected to the other end of the rod body part and extends along a second direction perpendicular to the first direction;
the second connecting rod part is fixedly connected to the first connecting rod part and is positioned on one side, far away from the rod body part, of the first connecting rod part along the first direction;
and the third connecting rod part is fixedly connected to the first connecting rod part through the second connecting rod part, and comprises a first extending section extending along the second direction, and the first extending section is fixedly connected to one end, far away from the first connecting rod part, of the second connecting rod part.
Optionally, there are two second connecting rod portions, the two second connecting rod portions are connected to the first connecting rod portion at intervals along the second direction, and the third connecting rod portion is fixedly connected to the first connecting rod portion through one or two second connecting rod portions.
Optionally, in the second direction, one end of the first link portion extends out of one side of the lever portion, and the other end of the first link portion extends out of the other side of the lever portion.
Optionally, an insertion block is protruded from the rod portion, and the rod portion is configured to be inserted into the inner cavity through the insertion block.
Optionally, the second link portion extends in the first direction.
Optionally, the method further comprises:
an input and output terminal integrally extending from the rod portion, the input and output terminal configured to connect to an external circuit.
Optionally, the third connecting rod portion further includes a second extending section extending along the first direction, and the second extending section is fixedly connected to one end of the first extending section, which is far away from the second connecting rod portion.
Optionally, the third connecting rod portion further includes a third extending section extending along the second direction, and the third extending section is fixedly connected to an end of the second extending section away from the first extending section.
Another object of the utility model is to provide a resonance rod, its resonance rod has that occupation space is small, heat-sinking capability is good and the effectual advantage of filtering.
To achieve the purpose, the utility model adopts the following technical proposal:
a resonance rod comprises a plurality of single resonance rods, the single resonance rods are arranged along the second direction side by side at intervals, rod body parts of the single resonance rods are connected through coupling connecting rods, and the single resonance rods and the coupling connecting rods are of integrally-formed metal sheet structures.
Another object of the utility model is to provide a radio frequency cavity filter, resonance bar wherein have occupation space small, the heat-sinking capability is good and the effectual advantage of filtering.
To achieve the purpose, the utility model adopts the following technical proposal:
a radio frequency cavity filter, a plurality of resonance rods as described above are arranged in an inner cavity of the radio frequency cavity filter, the resonance rods are arranged at intervals, and first extension sections of the resonance rods are arranged at intervals with a side wall of the inner cavity.
The utility model has the advantages that:
compared with the existing resonance column, the single resonance rod of the utility model has a sheet structure, small occupied space and good heat dissipation capability, the rod body part of the single resonance rod extends along the first direction, and one end of the rod body part is used for fixedly connecting the inner cavity; the first connecting rod part is fixedly connected to the other end of the rod body part and extends along a second direction perpendicular to the first direction; the second connecting rod part is fixedly connected to the first connecting rod part and is positioned on one side of the first connecting rod part, which is far away from the rod body part, along the first direction; the third connecting rod portion is fixedly connected to the first connecting rod portion through at least one second connecting rod portion, the third connecting rod portion at least comprises a first extending section extending along the second direction, the first extending section is located at one end, far away from the second connecting rod portion, of the third connecting rod portion, when the single resonant rod is arranged in an inner cavity of the radio frequency cavity filter, the first extending section is arranged at intervals with the side wall of the inner cavity, capacitive coupling can be generated, and the single resonant rod formed by the structure can have a good filtering effect.
Drawings
Fig. 1 is a schematic structural diagram of a resonant rod according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a radio frequency cavity filter according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a radio frequency cavity filter with a cover plate hidden according to a first embodiment of the present invention;
fig. 4 is a cross-sectional view of a rf cavity filter according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a resonant rod according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a resonant rod according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a resonant rod in the fourth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a resonance rod according to a fifth embodiment of the present invention.
In the figure:
x, a first direction; y, a second direction;
1. a lever portion; 11. an insertion block; 2. a first link portion; 3. a second link portion; 4. a third link portion; 41. a first extension section; 42. a second extension section; 43. a third extension section; 5. an input and an output; 6. a coupling link; 7. a housing; 8. a cover plate; 9. a separator.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
As shown in fig. 1 to 4, the present embodiment provides a single resonant rod, a resonant rod including a plurality of single resonant rods, and a radio frequency cavity filter having the resonant rod disposed in an inner cavity, where the single resonant rod and the resonant rod are both used for resonant filtering. In the figure, X denotes a first direction and Y denotes a second direction. In some embodiments, at least two single resonant rods are arranged side by side at intervals along the second direction, and the rod body portions 1 of two adjacent single resonant rods are connected through the coupling link 6. In some embodiments, a plurality of the resonant rods are disposed in the inner cavity of the rf cavity filter, and are spaced apart from one another. The resonance rod in this embodiment includes four monomer resonance rods, and a plurality of monomer resonance rods of every resonance rod and, two adjacent monomer resonance rods between coupling connecting rod 6 be integrated into one piece's metal sheet structure, and the structure is alone, low in manufacturing cost, has good heat dispersion. In other embodiments, the metal layer may be plated on the surface of the molded structure.
As shown in fig. 1, a single resonant rod in the resonant rod has a sheet-like structure, and the single resonant rod includes a rod body portion 1, a first link portion 2, a second link portion 3, and a third link portion 4, and the rod body portion 1, the first link portion 2, the second link portion 3, and the third link portion 4 are all flat. The rod body part 1 extends along a first direction, and one end of the rod body part 1 is used for connecting an inner cavity; the first connecting rod part 2 is fixedly connected to the other end of the rod body part 1, and the first connecting rod part 2 extends along a second direction perpendicular to the first direction; the second connecting rod part 3 is fixedly connected to the first connecting rod part 2, and the second connecting rod part 3 is positioned on one side of the first connecting rod part 2, which is far away from the rod body part 1, along the first direction; in some embodiments, the second link portion 3 extends in the first direction. The third connecting rod portion 4 is fixedly connected to the first connecting rod portion 2 through at least one second connecting rod portion 3 (in this embodiment, the third connecting rod portion 4 is fixedly connected to the first connecting rod portion 2 through one second connecting rod portion 3), the third connecting rod portion 4 at least includes a first extending section 41 extending along the second direction, and along the first direction, the first extending section 41 is fixedly connected to one end of the second connecting rod portion 3 away from the first connecting rod portion 2. When the resonant rod is disposed in the inner cavity of the rf cavity filter provided in this embodiment, the first extension 41 of the resonant rod is disposed at an interval from the sidewall of the inner cavity. Compare current resonance post, the monomer resonance pole of this embodiment, the resonance pole is sheet structure, the occupation space is small, the heat-sinking capability is good, be located the first connecting rod portion 2 of 1 top of shaft part, second connecting rod portion 3 and third connecting rod portion 4 cooperation have constituted the main part position that is used for the resonance of monomer resonance pole and resonance pole, through first connecting rod portion 2, extension and interval arrangement of second connecting rod portion 3 and third connecting rod portion 4 on the equidirectional not, and through first connecting rod portion 2, second connecting rod portion 3 and third connecting rod portion 4 are for the interval and the arrangement of each lateral wall of inner chamber on the equidirectional not, can be in compacter space, gain fine filtering effect, can also have better heat-sinking capability, less volume and lighter weight.
Further, as shown in fig. 1-4, in this embodiment, the rod body portion 1 is convexly provided with the insertion block 11, and the rod body portion 1 can be inserted into the inner cavity through the insertion block 11, so as to achieve the fixed position. In some embodiments, the shaft body 1 does not need to be plugged by the plugging block 11, but is directly welded with the side wall of the inner cavity.
In addition, in this embodiment, one of the four single resonant rods further includes an input/output end 5. The input and output terminals 5 are fixedly connected to the lever body portion 1, and the input and output terminals 5 are configured to be connected to an external circuit (not shown). In some embodiments, the input and output ends 5 are integrally extended from the rod body 1. As shown in fig. 3-4, the rf cavity filter further includes a housing 7 and a cover plate 8, the housing 7 and the cover plate 8 together enclose a housing of the rf cavity filter, the bottom plate and the side plate of the housing 7 together form an inner cavity, the cover plate 8 covers one end of the side plate of the housing 7 far away from the bottom plate, the plurality of insertion blocks 11 of the plurality of rod portions 1 of the resonant rods are inserted into the bottom plate of the housing 7, the first connecting rod portion 2, the second connecting rod portion 3, and the third connecting rod portion 4 of each single resonant rod are far away from the bottom plate of the housing 7 relative to the rod portions 1, the first connecting rod portion 2, the second connecting rod portion 3, and the third connecting rod portion 4 of each single resonant rod are close to the cover plate 8 relative to the rod portions 1, and the first extension section 41 of the third connecting rod portion 4 of each single resonant rod is spaced from a side wall of the inner cavity (e.g., the bottom plate of the housing 7 is spaced from an inner wall of the side plate, and an inner wall of the cover plate 8). Two cavities are cut apart into with the inner chamber to baffle 9 in casing 7, resonance bar of fixed cartridge respectively of two cavities, each resonance bar has an input/output end 5 respectively, one can regard as the input in two input/output ends 5, another can regard as the output, then constituted the radio frequency cavity filter that has filtering function, whole radio frequency cavity filter adopts the resonance bar that has specific structure completely, and then make radio frequency cavity filter can optimize to miniaturized direction, be applicable to in the middle of the 5G communication equipment.
Example two
As shown in fig. 5, the present embodiment is different from the first embodiment in that the present embodiment provides a single resonant rod of another structure and a resonant rod having the single resonant rod of the present embodiment. The resonance rod comprises three single resonance rods, and two adjacent single resonance rods are also connected through a coupling connecting rod 6, so that an integral structure of the resonance rod is formed. The difference between the single resonant rod of this embodiment and the first embodiment is that it includes two second connecting rod portions 3, and two second connecting rod portions 3 are connected on first connecting rod portion 2 along the second direction that is spaced from each other, and third connecting rod portion 4 links firmly on first connecting rod portion 2 through two second connecting rod portions 3. The first extending section 41 of the third connecting rod portion 4 is a strip-shaped flat rod structure extending along the second direction, and two ends of the first extending section 41 along the second direction are respectively connected to the two second connecting rod portions 3. In some embodiments, the two second link portions 3 are connected to two opposite ends of the first link portion 2 along the second direction, and the first link portion 2, the two second link portions 3, and the third link portion 4 cooperate to form a main body structure for resonance in a shape of "square". For example, as shown in fig. 5, in the present embodiment, along the second direction, one end of the first link portion 2 extends out of one side of the lever portion 1, and the other end of the first link portion 2 extends out of the other side of the lever portion 1. Through optimization test, the resonance rod of the embodiment has good filtering effect in a plurality of resonance rod structures in different forms, and is particularly suitable for 5G communication equipment.
EXAMPLE III
As shown in fig. 6, the present embodiment is different from the second embodiment in that the present embodiment provides a single resonant rod of another structure and a resonant rod having the single resonant rod of the present embodiment. The single resonant rod of this embodiment is different from the second embodiment in that only one end of the third connecting rod portion 4 along the second direction is connected to one of the second connecting rod portions 3, and one end of the first extending section 41 along the second direction is connected to the one of the second connecting rod portions 3, so as to form a notched "square" structure as shown in fig. 6, and the notch is located on the side of the first connecting rod portion 2 opposite to the rod portion 1. The same tests show that the filter has good filtering effect, and is particularly suitable for 5G communication equipment.
Example four
As shown in fig. 7, the present embodiment is different from the first embodiment in that the present embodiment provides a single resonant rod of another structure and a resonant rod having the single resonant rod of the present embodiment. The resonance rod comprises three single resonance rods, and two adjacent single resonance rods are also connected through a coupling connecting rod 6, so that an integral structure of the resonance rod is formed. For example, as shown in fig. 7, in the present embodiment, along the second direction, one end of the first link portion 2 extends out of one side of the lever portion 1, and the other end of the first link portion 2 extends out of the other side of the lever portion 1. The third connecting rod part 4 is in an L-shaped structure which rotates 90 degrees to the right, the third connecting rod part 4 comprises a first extending section 41 which extends along the second direction and a second extending section 42 which extends along the first direction, the second extending section 42 is fixedly connected to one end, away from the second connecting rod part 3, of the first extending section 41, the second extending section 42 and the first extending section 41 form the L-shaped structure which rotates 90 degrees to the right, the first connecting rod part 2, the second connecting rod part 3 and the third connecting rod part 4 are matched to form a square-shaped structure with a notch, and the notch is located on one side of the first connecting rod part 2 along the first direction.
EXAMPLE five
As shown in fig. 8, the present embodiment is different from the first embodiment in that the present embodiment provides a single resonant rod of another structure and a resonant rod having the single resonant rod of the present embodiment. The resonance rod comprises three single resonance rods, and two adjacent single resonance rods are also connected through a coupling connecting rod 6, so that an integral structure of the resonance rod is formed. More specifically, as shown in fig. 8, in the present embodiment, in the second direction, one end of the first link portion 2 extends out of one side of the lever portion 1, the other end of the first link portion 2 extends out of the other side of the lever portion 1, the second link portion 3 is connected to one end of the first link portion 2 in the second direction, and the third link portion 4 has a "U" shape rotated 90 degrees to the right. For example, the third connecting rod portion 4 includes a first extending section 41 extending along the second direction, a second extending section 42 extending along the first direction, and a third extending section 43 extending along the second direction, the second extending section 42 is fixedly connected to an end of the first extending section 41 away from the second connecting rod portion 3, the third extending section 43 is fixedly connected to an end of the second extending section 42 away from the first extending section 41, the third connecting rod portion 4 is integrally connected to an end of the second connecting rod portion 3 away from the first connecting rod portion 2, and the first connecting rod portion 2, the second connecting rod portion 3, and the third connecting rod portion 4 cooperate to form an "S" shaped structure, which has a good filtering effect through the same test.
To sum up, the embodiment of the utility model provides a resonance bar and monomer resonance bar of five different structure to embodiment five, its structure and the relation of connection to first connecting rod portion 2, second connecting rod portion 3 and third connecting rod portion 4 have all been optimized and have been adjusted. The rod body part 1 extends along a first direction, and one end of the rod body part 1 is fixedly connected with the inner cavity; the first connecting rod part 2 is fixedly connected to the other end of the rod body part 1, and the first connecting rod part 2 extends along a second direction perpendicular to the first direction; the second connecting rod part 3 is fixedly connected to the first connecting rod part 2, and the second connecting rod part 3 is positioned on one side of the first connecting rod part 2, which is far away from the rod body part 1, along the first direction; third connecting rod portion 4 links firmly on first connecting rod portion 2 through at least one second connecting rod portion 3, third connecting rod portion 4 includes at least along the first extension section 41 of second direction extension, and along the first direction, first extension section 41 is located the one end of keeping away from second connecting rod portion 3 of third connecting rod portion 4, its first connecting rod portion 2, second connecting rod portion 3 and third connecting rod portion 4 have formed the major structure who is used for the resonance, monomer resonance pole and resonance pole can obtain good filtering effect, especially are applicable in 5G communication equipment.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A monolithic resonator rod configured to be disposed in an inner cavity of a radio frequency cavity filter for resonant filtering, the monolithic resonator rod having a sheet structure, the monolithic resonator rod comprising:
a body portion (1) extending in a first direction, one end of the body portion (1) being for connection to the lumen;
the first connecting rod part (2) is fixedly connected to the other end of the rod body part (1), and the first connecting rod part (2) extends along a second direction perpendicular to the first direction;
the second connecting rod part (3) is fixedly connected to the first connecting rod part (2), and the second connecting rod part (3) is positioned on one side, far away from the rod body part (1), of the first connecting rod part (2) along the first direction;
third connecting rod portion (4), it passes through second connecting rod portion (3) link firmly in on first connecting rod portion (2), third connecting rod portion (4) include the edge first extension segment (41) that the second direction extends, first extension segment (41) link firmly in second connecting rod portion (3) are kept away from the one end of first connecting rod portion (2).
2. A unitary resonant bar according to claim 1, wherein there are two of said second bar portions (3), two of said second bar portions (3) being connected to said first bar portion (2) at spaced intervals along said second direction, said third bar portion (4) being attached to said first bar portion (2) by one or both of said second bar portions (3).
3. The monolithic resonance rod as recited in claim 1, wherein one end of the first link portion (2) is protruded from one side of the rod portion (1) and the other end is protruded from the other side of the rod portion (1) in the second direction.
4. The monolithic resonator rod according to claim 1, wherein the rod body (1) is provided with a plug-in block (11) protruding thereon, and the rod body (1) is configured to be plugged into the inner cavity through the plug-in block (11).
5. The single resonant bar of claim 1, wherein the second link portion (3) extends in the first direction.
6. The monolithic resonance rod as recited in claim 1, further comprising:
an input/output terminal (5) integrally extending from the lever portion (1), the input/output terminal (5) being configured to be connected to an external circuit.
7. The monoblock resonance rod of claim 1, wherein said third rod portion (4) further comprises a second extension (42) extending along said first direction, said second extension (42) being attached to an end of said first extension (41) remote from said second rod portion (3).
8. The monolithic resonance rod according to claim 7, wherein said third link portion (4) further comprises a third extension (43) extending in said second direction, said third extension (43) being fixedly attached to an end of said second extension (42) remote from said first extension (41).
9. A resonance rod, comprising a plurality of single resonance rods according to any one of claims 1 to 8, wherein the plurality of single resonance rods are arranged side by side at intervals along the second direction, and the rod bodies (1) of the plurality of single resonance rods are connected by a coupling link (6), and the plurality of single resonance rods and the coupling link (6) are of an integrally formed metal sheet structure.
10. A radio frequency cavity filter, characterized in that a plurality of resonant rods as set forth in claim 9 are disposed in an inner cavity of the radio frequency cavity filter, the plurality of resonant rods being arranged at a distance from each other, and first extensions (41) of the plurality of resonant rods being disposed at a distance from a sidewall of the inner cavity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120670785.9U CN214378779U (en) | 2021-04-01 | 2021-04-01 | Monomer resonance rod, resonance rod and radio frequency cavity filter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120670785.9U CN214378779U (en) | 2021-04-01 | 2021-04-01 | Monomer resonance rod, resonance rod and radio frequency cavity filter |
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| CN214378779U true CN214378779U (en) | 2021-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952323A (en) * | 2021-04-01 | 2021-06-11 | 昆山立讯射频科技有限公司 | Monomer resonance rod, resonance rod and radio frequency cavity filter |
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2021
- 2021-04-01 CN CN202120670785.9U patent/CN214378779U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952323A (en) * | 2021-04-01 | 2021-06-11 | 昆山立讯射频科技有限公司 | Monomer resonance rod, resonance rod and radio frequency cavity filter |
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Address after: Building 3, 5, and auxiliary buildings of the second phase standard factory building, No. 99 Xubang Road, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province, 215324 Patentee after: Suzhou Lixun Technology Co.,Ltd. Address before: 215324 room 2, No.158, Jinchang Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: KUNSHAN LIXUN RF TECHNOLOGY CO.,LTD. |
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