CN114914649B - Filter and communication device - Google Patents
Filter and communication device Download PDFInfo
- Publication number
- CN114914649B CN114914649B CN202210547165.5A CN202210547165A CN114914649B CN 114914649 B CN114914649 B CN 114914649B CN 202210547165 A CN202210547165 A CN 202210547165A CN 114914649 B CN114914649 B CN 114914649B
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- reed
- cavity
- tuning rod
- accommodating groove
- groove
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
Abstract
The embodiment of the invention provides a filter and communication equipment. Wherein, the apron lid that is equipped with first storage tank is located on the cavity, and the tank bottom of first storage tank is equipped with the inside regulation hole of intercommunication cavity, and the tuning rod stretches into in the cavity through the regulation hole. The reed is sleeved on the tuning rod, and one end of the reed is abutted with the bottom of the first accommodating groove. The locking piece is abutted with the other end of the reed, so that the reed can squeeze the tuning rod through deformation when moving towards the cavity, and the tuning rod can be locked. Therefore, the problem that metal scraps are generated by the tuning rod is avoided, and the tuning rod can be used for vertically adjusting the position, so that the debugging time is saved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a filter and a communications device.
Background
Filters are used in communication systems very widely, and have a very important role in signal acquisition, transmission and processing. Typically, the tuning of the filter requires the use of a tuning rod and nut in a threaded engagement with the cover plate to adjust the position of the threaded rod by means of a threaded knob. However, metal scraps are generated in the knob process, and the problem of product short circuit is possibly caused. In addition, the screwing of the tuning rod and the screwing process of the nut take too long, and the debugging efficiency is affected.
Disclosure of Invention
Therefore, the invention aims to provide a filter and a communication device, which can deform the reed through the locking piece so as to lock the tuning rod, avoid the problem that metal scraps are generated in threaded connection of the tuning rod, and improve the debugging efficiency.
In a first aspect, an embodiment of the present invention provides a filter, including:
a cavity;
the cover plate is covered on the cavity, a first accommodating groove is formed in the direction of the cover plate towards the cavity in a recessed mode, and an adjusting hole penetrating into the cavity is formed in the bottom of the first accommodating groove;
the tuning rod extends into the cavity through the adjusting hole;
the reed is sleeved on the tuning rod, and one end of the reed is abutted with the bottom of the first accommodating groove; and
a locking member abutting the other end of the reed and configured to move toward the cavity to press the reed against the tuning rod by deformation.
Further, the reed comprises:
an abutting portion which is located at one end of the reed and is circumferentially arranged outside the tuning rod;
a deformation portion extending obliquely inward from the abutting portion; and
and the extrusion part extends from the deformation part towards the cavity and is positioned at the other end of the reed, and the extrusion part is attached to the outer wall of the tuning rod.
Further, the locking member includes:
the main body part is sleeved on the tuning rod; and
a connection portion extending from an inner region of the main body portion toward the cavity and located in the first accommodation groove;
the tail end of the connecting part is recessed towards the direction away from the cavity to form a second accommodating groove, and the reed is at least partially positioned in the second accommodating groove.
Further, the abutment portion includes:
and the abutting part main body is abutted with the side wall and the groove bottom of the second accommodating groove respectively.
Further, the abutting portion further includes an abutting ring formed by extending the tip of the abutting portion main body toward the inside;
the abutting ring is abutted with the bottom of the second accommodating groove.
Further, the side wall of the first accommodating groove is provided with an internal thread;
the outer wall of the connecting part is provided with external threads matched with the internal threads.
Further, the reed is formed with a slit in the axial direction.
Further, the reed is provided with a plurality of leakage holes which are distributed at intervals along the circumferential direction.
Further, the tail end of the tuning rod is concavely formed with an annular groove on the peripheral surface.
In a second aspect, an embodiment of the present invention further provides a communication device, including:
the filter according to the first aspect, the filter is provided in a signal transceiving circuit section of the communication device, for processing a signal.
The embodiment of the invention provides a filter and communication equipment. Wherein, the apron lid that is equipped with first storage tank is located on the cavity, and the tank bottom of first storage tank is equipped with the inside regulation hole of intercommunication cavity, and the tuning rod stretches into in the cavity through the regulation hole. The reed is sleeved on the tuning rod, and one end of the reed is abutted with the bottom of the first accommodating groove. The locking piece is abutted with the other end of the reed, so that the reed can squeeze the tuning rod through deformation when moving towards the cavity, and the tuning rod can be locked. Therefore, the problem that metal scraps are generated by the tuning rod is avoided, and the tuning rod can be used for vertically adjusting the position, so that the debugging time is saved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a filter according to an embodiment of the present invention;
FIG. 2 is an exploded view of a filter according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a partial region of a filter according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a reed according to an embodiment of the present invention;
FIG. 5 is a schematic view of a locking member according to an embodiment of the present invention;
FIG. 6 is a schematic view of another view of a locking member according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a cover plate according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a tuning rod according to an embodiment of the present invention.
Reference numerals illustrate:
1-a cavity; 2-cover plate; 21-a first accommodating groove; 211-internal threads; 22-adjusting holes; 3-tuning rods; 31-an annular groove; 4-reed; 41-abutment; 411-abutment body; 412-an abutment ring; 42-deformation part; 43-pressing part; 44-slit; 45-leak holes; 5-locking piece; 51-a main body; 52-connecting part; 521-external threads; 53-second accommodation groove.
Detailed Description
The present invention is described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. The present invention will be fully understood by those skilled in the art without the details described herein. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the nature of the invention.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, the words "comprise," "comprising," and the like in the description are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
Fig. 1 is a schematic structural view of a filter according to an embodiment of the present invention, fig. 2 is an exploded schematic view of the filter according to an embodiment of the present invention, and fig. 3 is a schematic sectional view of a partial region of the filter according to an embodiment of the present invention, where, in combination with fig. 1 to 3, the filter includes a cavity 1, a cover plate 2, a tuning rod 3, a reed 4, and a locking member 5. Wherein the cavity 1 is provided as a housing with one end open. In one embodiment, the cavity 1 is configured as a cuboid structure, and the cover plate 2 is correspondingly configured as a rectangle. As an alternative embodiment, the cavity 1 may be provided as a cylinder or other structure, and the cover plate 2 may be correspondingly provided as a circle. Further, a cover plate 2 is provided to cover the cavity 1, thereby closing the opening of the cavity 1. In one embodiment, the cover plate 2 and the cavity 1 are fixedly connected by a plurality of screws.
In one embodiment, the cover plate 2 is recessed toward the cavity 1 to form a first accommodating groove 21, and a groove bottom of the first accommodating groove 21 is provided with an adjusting hole 22 penetrating into the cavity 1. Thereby, the tuning rod 3 can be extended into the cavity 1 through the adjustment hole 22, thereby changing the radio frequency parameters of the filter by fine tuning the position. In the present embodiment, the tuning rod 3 is entirely cylindrical, and the adjustment hole 22 is correspondingly circular.
In one embodiment, the top end of the tuning rod 3 is hemispherical, and the matching side surface can avoid the problem of corner scratch caused when the tuning rod 3 stretches into the cavity 1, thereby being beneficial to protecting devices or structures in the filter; meanwhile, metal scraps generated by collision or scratching can be avoided as much as possible, and the effect of preventing the metal scraps from causing short circuit is achieved to a certain extent. In the present embodiment, the tuning rod 3 is made of a metal material such as brass and has a smooth surface, and the smooth surface of the tuning rod 3 can reduce the energy loss of electromagnetic waves, which helps to improve the debugging effect of the tuning rod 3.
Further, the reed 4 is sleeved on the tuning rod 3, and one end of the reed abuts against the bottom of the first accommodating groove 21. That is, the reed 4 surrounds the side surface of the tuning rod 3 and is at least partially located in the first receiving groove 21. The first accommodating groove 21 is correspondingly provided with a circular groove, and the reed 4 is bent into a circular ring shape so as to be abutted against the circular groove bottom of the first accommodating groove 21.
Further, the locking member 5 abuts against the other end of the reed 4 and is configured to move toward the cavity 1 so that the reed 4 makes a pressing action on the tuning rod 3 by self-deformation, thereby achieving locking of the tuning rod 3. In this embodiment, the locking member 5 is correspondingly formed in a ring shape, so that the locking member can be sleeved on the tuning rod 3, so that the whole annular contact portion of the reed 4 is synchronously pressed, and the locking effect of the reed 4 on the tuning rod 3 is prevented from being affected due to uneven stress. In the present embodiment, the first end of the reed 4 abuts on the groove bottom of the first accommodation groove 21, and the second end of the reed 4 abuts on the locking member 5. As an alternative embodiment, the first end of the reed 4 abuts against the locking member 5, and the second end of the reed 4 abuts against the bottom of the first accommodation groove 21.
Fig. 4 is a schematic structural view of a reed 4 according to an embodiment of the present invention, and as shown in fig. 4, the reed 4 includes an abutment portion 41, a deformation portion 42, and a pressing portion 43. Wherein the abutment 41 is located at the second end of the reed 4 and is circumferentially arranged outside the tuning rod 3. Further, the deformation portion 42 extends obliquely inward from the abutment portion 41. Further, the pressing portion 43 extends from the deformation portion 42 toward the cavity 1 and is located at the first end of the reed 4. The pressing portion 43 is attached to the outer wall of the tuning rod 3. When the locking member 5 abuts against and presses the abutting portion 41, the deformation portion 42 is deformed due to the fact that the pressing portion 43 is blocked by the groove bottom of the first accommodating groove 21, and accordingly the pressing portion 43 can press the tuning rod 3, and locking of the tuning rod 3 is achieved.
Fig. 5 is a schematic structural view of a locking member 5 according to an embodiment of the present invention, and fig. 6 is a schematic structural view of another view of the locking member 5 according to an embodiment of the present invention, where, in combination with fig. 5 to 6, the locking member 5 includes a main body portion 51 and a connecting portion 52. Specifically, the main body 51 is provided in a ring shape and is fitted over the tuning rod 3. Further, the connection portion 52 extends from the inner region of the main body portion 51 toward the cavity 1 and is located in the first receiving groove 21, and may function as a connection cover plate 2. Further, the end of the connecting portion 52 is recessed toward the cavity 1 to form a second accommodating groove 53, and the reed 4 is at least partially located in the second accommodating groove 53. Therefore, when the locking piece 5 moves towards the cavity 1, the groove bottom and the groove wall of the second accommodating groove 53 can apply an acting force to the abutting part 41 of the reed 4, so that the deformation part 42 of the reed 4 is deformed under the cooperation of the first accommodating groove 21, and the tuning rod 3 is extruded by the extrusion part 43 of the reed 4, so that the extrusion effect on the tuning rod 3 is realized. Alternatively, the abutting portion 41 may abut against the groove bottom and the groove wall of the first accommodation groove 21, and the pressing portion 43 may abut against the groove bottom of the second accommodation groove 53.
In one embodiment, the abutment 41 of the reed 4 comprises an abutment body 411. The contact portion body 411 is in contact with the side wall and the groove bottom of the second accommodation groove 53, respectively. Specifically, the abutting portion main body 411 is provided in a cylindrical shape, and the cylindrical wall is fitted to the groove wall of the second accommodation groove 53. When the locking member 5 moves toward the cavity 1, the end of the abutting portion body 411 abuts against the bottom of the second accommodation groove 53. Thereby, the groove wall and the groove bottom of the second accommodating groove 53 can play a limiting role on the reed 4, so as to ensure that the deformation part 42 of the reed 4 can deform in a predetermined manner, that is, ensure that the extrusion part 43 can form an effective extrusion effect on the tuning rod 3, thereby realizing locking of the tuning rod 3.
In one embodiment, the abutment 41 further includes an abutment ring 412 formed by extending the tip of the abutment body 411 toward the inside. In the present embodiment, the contact ring 412 contacts the bottom of the second accommodation groove 53. Thus, by providing the contact ring 412, the contact area between the contact portion 41 and the bottom of the second accommodation groove 53 can be increased, and the pressing effect of the locking member 5 on the reed 4 can be ensured. Further, by providing the abutment ring 412, the displacement of the abutment portion 41 when pressed can be avoided, thereby ensuring that the reed 4 can be deformed in a predetermined manner to ensure the locking effect of the reed 4 on the tuning rod 3.
As shown in fig. 7, in one embodiment, the sidewall of the first receiving groove 21 has an internal thread 211, and the outer wall of the connection part 52 has an external thread 521 that is matched with the internal thread 211. Thereby, the cover plate 2 and the locker 5 may be screwed by the internal screw 211 and the external screw 521. It should be noted that, the fixing strength of the locking member 5 on the cover plate 2 can be ensured by adopting a threaded connection manner, so that the reed 4 can be ensured to be fixed and maintain the required deformation state, and the locking effect of the reed 4 on the tuning rod 3 can be ensured. In addition, when the locking piece 5 moves towards the cavity 1 in a threaded screwing mode, the moving distance and the moving speed can be conveniently controlled, and an operator can conveniently debug the locking piece according to the needs.
In one embodiment, the reed 4 is formed with a slit 44 in the axial direction. It is easy to understand that the problem that the reed 4 is damaged by being squeezed due to deformation can be avoided by the remained gap 44, and the practicability of the reed 4 is improved.
In one embodiment, the reed 4 has a plurality of circumferentially spaced weep holes 45. It is easy to understand that the problem that the reed 4 is damaged by extrusion due to deformation can be avoided by arranging the leak hole 45, and the practicability of the reed 4 is improved.
Fig. 8 is a schematic structural view of a tuning rod 3 according to an embodiment of the present invention, and as shown in fig. 8, an annular groove 31 is concavely formed on the circumferential surface of the tuning rod 3 at the tail end. It will be readily appreciated that by providing the annular groove 31 at the trailing end of the tuning rod 3, this assists in manoeuvring the distance of the tuning rod 3 extending into the cavity 1 and in facilitating relatively easy removal of the tuning rod 3.
According to the filter provided by the embodiment of the invention, the locking piece 5 is matched with the cover plate 2 to apply an acting force to the reed 4, so that the reed 4 can squeeze and lock the tuning rod 3 through self deformation, the problem that metal scraps are generated by a traditional tuning screw is solved, the short circuit of the filter is avoided, and the product quality of the filter is improved. Meanwhile, the tuning rod 3 can directly adjust the position up and down, which is helpful for saving debugging time. It should be noted that, the filter provided in this embodiment further includes various other conventional components or structures, and this embodiment only describes a portion related to the point of the invention in this embodiment, and other specific components or structures may refer to the existing conventional implementation manner, and do not limit the present invention.
The embodiment of the invention also provides the communication equipment, and the communication equipment is provided with the filter. It will be readily appreciated that the filter is provided in the signal transceiving circuitry portion of the communication device and may be used to process signals. Illustratively, the communication device may include an antenna and a radio frequency unit coupled to the antenna, the radio frequency unit including a filter as described above, for filtering the received radio frequency signal. In this embodiment, the filter in the communication device applies the acting force to the reed 4 through the locking member 5 and the cover plate 2, so that the reed 4 extrudes and locks the tuning rod 3 through self deformation, the problem that the traditional tuning screw produces metal scraps is solved, the short circuit of the filter is avoided, and the stable work of the communication device is guaranteed.
The embodiment of the invention provides a filter and communication equipment. Wherein, the apron lid that is equipped with first storage tank is located on the cavity, and the tank bottom of first storage tank is equipped with the inside regulation hole of intercommunication cavity, and the tuning rod stretches into in the cavity through the regulation hole. The reed is sleeved on the tuning rod, and one end of the reed is abutted with the bottom of the first accommodating groove. The locking piece is abutted with the other end of the reed, so that the reed can squeeze the tuning rod through deformation when moving towards the cavity, and the tuning rod can be locked. Therefore, the problem that metal scraps are generated by the tuning rod is avoided, and the tuning rod can be used for vertically adjusting the position, so that the debugging time is saved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A filter, the filter comprising:
a cavity (1);
the cover plate (2) is covered on the cavity (1), a first accommodating groove (21) is formed in the direction of the cover plate (2) towards the cavity (1), and an adjusting hole (22) penetrating into the cavity (1) is formed in the bottom of the first accommodating groove (21);
the tuning rod (3) stretches into the cavity (1) through the adjusting hole (22);
the reed (4) is sleeved on the tuning rod (3), and one end of the reed is abutted with the bottom of the first accommodating groove (21); and
a locking member (5), the locking member (5) abutting against the other end of the reed (4) and configured to move toward the cavity (1) to press the reed (4) against the tuning rod (3) by deformation;
wherein the reed (4) comprises:
an abutting portion (41), wherein the abutting portion (41) is positioned at one end of the reed (4) and is arranged on the outer side of the tuning rod (3) in a surrounding manner;
a deformation portion (42), wherein the deformation portion (42) extends obliquely inward from the contact portion (41); and
and the extrusion part (43) extends from the deformation part (42) towards the cavity (1) and is positioned at the other end of the reed (4), and the extrusion part (43) is attached to the outer wall of the tuning rod (3).
2. The filter according to claim 1, characterized in that the locking element (5) comprises:
a main body part (51), wherein the main body part (51) is sleeved on the tuning rod (3); and
a connecting portion (52), the connecting portion (52) extending from an inner region of the main body portion (51) toward the cavity (1) and being located in the first accommodation groove (21);
the tail end of the connecting part (52) is recessed towards the direction away from the cavity (1) to form a second accommodating groove (53), and the reed (4) is at least partially positioned in the second accommodating groove (53).
3. The filter according to claim 2, wherein the abutment (41) comprises:
and an abutting part main body (411), wherein the abutting part main body (411) is abutted with the side wall and the groove bottom of the second accommodating groove (53) respectively.
4. A filter according to claim 3, wherein the abutment (41) further comprises an abutment ring (412) formed by the end of the abutment body (411) extending towards the inside;
the abutting ring (412) abuts against the bottom of the second accommodating groove (53).
5. The filter according to claim 2, characterized in that the side wall of the first housing groove (21) has an internal thread (211);
the outer wall of the connecting portion (52) has an external thread (521) that mates with the internal thread (211).
6. A filter according to claim 1, characterized in that the reed (4) is formed with a slit (44) in the axial direction.
7. A filter according to claim 1, characterized in that the reed (4) has a plurality of circumferentially spaced weep holes (45).
8. The filter according to claim 1, characterized in that the tail end of the tuning rod (3) is concavely formed with an annular groove (31) on the peripheral surface.
9. A communication device, the communication device comprising:
a filter according to any one of claims 1 to 8, provided in a signal transceiving circuit portion of the communication device for processing signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210547165.5A CN114914649B (en) | 2022-05-19 | 2022-05-19 | Filter and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210547165.5A CN114914649B (en) | 2022-05-19 | 2022-05-19 | Filter and communication device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114914649A CN114914649A (en) | 2022-08-16 |
| CN114914649B true CN114914649B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210547165.5A Active CN114914649B (en) | 2022-05-19 | 2022-05-19 | Filter and communication device |
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| Country | Link |
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| CN (1) | CN114914649B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2191944A (en) * | 1937-04-29 | 1940-02-27 | Eaton Mfg Co | Self-locking valve tappet screw |
| US3097323A (en) * | 1960-12-06 | 1963-07-09 | Varian Associates | Tuning device for flexible wall klystron |
| US4001737A (en) * | 1975-10-24 | 1977-01-04 | The United States Of America As Represented By The Field Operations Bureau Of The Federal Communications Commission | Cavity tuning assembly having coarse and fine tuning means |
| US4035749A (en) * | 1976-04-06 | 1977-07-12 | Harvard Industries, Inc. | Microwave tuning screw assembly having positive shorting |
| CN102509819A (en) * | 2011-10-31 | 2012-06-20 | 深圳市大富科技股份有限公司 | Dielectric filter, locking nut, tuning device and communication radio-frequency apparatus |
| CN208939120U (en) * | 2018-07-24 | 2019-06-04 | 彭羽 | A kind of filter tuner structure |
| CN113258233A (en) * | 2021-06-22 | 2021-08-13 | 深圳金泰格机电股份有限公司 | Self-locking tuning screw, machining method and cavity filter |
| CN113410591A (en) * | 2021-06-03 | 2021-09-17 | 昆山立讯射频科技有限公司 | Radio frequency device |
| CN215184469U (en) * | 2021-06-21 | 2021-12-14 | 大富科技(安徽)股份有限公司 | Tuning assembly and filter |
| CN216213989U (en) * | 2021-10-12 | 2022-04-05 | 昆山立讯射频科技有限公司 | Connection structure of radio frequency device |
-
2022
- 2022-05-19 CN CN202210547165.5A patent/CN114914649B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2191944A (en) * | 1937-04-29 | 1940-02-27 | Eaton Mfg Co | Self-locking valve tappet screw |
| US3097323A (en) * | 1960-12-06 | 1963-07-09 | Varian Associates | Tuning device for flexible wall klystron |
| US4001737A (en) * | 1975-10-24 | 1977-01-04 | The United States Of America As Represented By The Field Operations Bureau Of The Federal Communications Commission | Cavity tuning assembly having coarse and fine tuning means |
| US4035749A (en) * | 1976-04-06 | 1977-07-12 | Harvard Industries, Inc. | Microwave tuning screw assembly having positive shorting |
| CN102509819A (en) * | 2011-10-31 | 2012-06-20 | 深圳市大富科技股份有限公司 | Dielectric filter, locking nut, tuning device and communication radio-frequency apparatus |
| CN208939120U (en) * | 2018-07-24 | 2019-06-04 | 彭羽 | A kind of filter tuner structure |
| CN113410591A (en) * | 2021-06-03 | 2021-09-17 | 昆山立讯射频科技有限公司 | Radio frequency device |
| CN215184469U (en) * | 2021-06-21 | 2021-12-14 | 大富科技(安徽)股份有限公司 | Tuning assembly and filter |
| CN113258233A (en) * | 2021-06-22 | 2021-08-13 | 深圳金泰格机电股份有限公司 | Self-locking tuning screw, machining method and cavity filter |
| CN216213989U (en) * | 2021-10-12 | 2022-04-05 | 昆山立讯射频科技有限公司 | Connection structure of radio frequency device |
Non-Patent Citations (3)
| Title |
|---|
| Study of a high power self mode-locked ytterbium rodtype fiber laser with tunable pulse duration;P. Deslandes等;《2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC》;1 * |
| 基于MEMS技术的开关和电磁带隙可调滤波器设计;张理;《全国优秀硕士学位论文全文数据库》;1-75 * |
| 机械结构弹性变形对控制系统的影响;陈思耀等;《韩山师范学院学报》;第22卷(第2期);41-44 * |
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| CN114914649A (en) | 2022-08-16 |
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Address after: Building 3, 5, and auxiliary buildings of the second phase standard factory building, No. 99 Xubang Road, Economic Development Zone, Wuzhong District, Suzhou City, Jiangsu Province, 215128 Applicant after: Suzhou Lixun Technology Co.,Ltd. Address before: 215324 room 2, No.158, Jinchang Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: KUNSHAN LIXUN RF TECHNOLOGY CO.,LTD. |
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| GR01 | Patent grant |