CN211789400U - Dielectric waveguide filter with adjustable port coupling strength - Google Patents
Dielectric waveguide filter with adjustable port coupling strength Download PDFInfo
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- CN211789400U CN211789400U CN202020259292.1U CN202020259292U CN211789400U CN 211789400 U CN211789400 U CN 211789400U CN 202020259292 U CN202020259292 U CN 202020259292U CN 211789400 U CN211789400 U CN 211789400U
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Abstract
The utility model provides a port coupling intensity adjustable dielectric waveguide filter, which comprises at least one resonance unit, at least one port blind hole and at least one port inner core; the port blind hole is arranged on the surface of the dielectric waveguide filter and is provided with at least one non-electroplating area; the port inner core is arranged in the port blind hole, and the port coupling strength is adjusted by adjusting the area of the non-plating area and the length of the port inner core extending into the port blind hole. Therefore, the utility model discloses only need to handle the port blind hole through conventional electroplating process, the port coupling of regulation medium waveguide filter that can be nimble is strong and weak, has the characteristics that the implementation is simple, easily operation, has reduced the material simultaneously and has scrapped quantity, reduction in production cost.
Description
Technical Field
The utility model relates to a communication technology field's dielectric waveguide filter technique especially relates to a strong and weak adjustable dielectric waveguide filter of port coupling.
Background
With the continuous development of modern communication technology, the performance index requirements of the filter are higher and higher. The dielectric waveguide filter has small size, high Q value, low cost and other features, and may be used in communication system with high miniaturization and integration level. The production of the existing dielectric waveguide filter is an irreversible process, the port coupling of the produced dielectric waveguide filter cannot be flexibly adjusted, once the port coupling has problems, the expected indexes of the dielectric waveguide filter are difficult to realize to a great extent, and the material waste phenomenon is easily caused. Therefore, how to realize the adjustable port coupling strength plays an important role in improving the production level and quality of the dielectric waveguide filter.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
To foretell defect, the utility model aims to provide a strong and weak adjustable dielectric waveguide filter of port coupling, its can be nimble the strong and weak port coupling of adjusting dielectric waveguide filter, have the characteristics that the implementation is simple, easily operation, but reduction in production cost simultaneously.
In order to achieve the above object, the present invention provides a dielectric waveguide filter with adjustable port coupling strength, which includes at least one resonant unit, at least one port blind hole and at least one port inner core; the port blind hole is arranged on the surface of the dielectric waveguide filter and is provided with at least one non-electroplating area; the port inner core is arranged in the port blind hole, and the port coupling strength is adjusted by adjusting the area of the non-plating area and the length of the port inner core extending into the port blind hole.
According to dielectric waveguide filter, dielectric waveguide filter's surface covering is equipped with the metallic coating.
According to dielectric waveguide filter, the surface covering of port blind hole is equipped with the metallic coating.
According to the dielectric waveguide filter of the present invention, the bottom surface and/or each side surface of the port blind hole is provided with at least one of the non-plating regions having a regular shape or an irregular shape.
According to the dielectric waveguide filter of the present invention, the non-plating region is circular, oval, square, diamond or trapezoidal.
According to dielectric waveguide filter, the port blind hole be cylindrical, prismatic or notch cuttype.
According to dielectric waveguide filter, the port inner core is cylindrical, prismatic or notch cuttype.
According to dielectric waveguide filter, the port inner core is fixed in through welding, spiro union or joint on the dielectric waveguide filter.
According to the dielectric waveguide filter of the present invention, the strength of the port coupling of the dielectric waveguide filter is determined by the area of the non-plating region, and the larger the area of the non-plating region is, the weaker the port coupling is; and/or
The strength of the port coupling of the dielectric waveguide filter is determined by the length of the port inner core extending into the port blind hole, and the longer the length of the port inner core extending into the port blind hole is, the stronger the port coupling is.
According to dielectric waveguide filter, the port inner core stretches into the length of port blind hole is more than or equal to 0.
The utility model discloses a dielectric waveguide filter includes a resonance unit, a port blind hole and a port inner core; the port blind hole is provided with at least one non-electroplating area, and the port inner core is arranged in the port blind hole; the coupling strength of the port can be adjusted by adjusting the area of the non-electroplating area and the length of the port inner core extending into the port blind hole. Therefore, the utility model discloses only need to handle the port blind hole through conventional electroplating process, the port coupling of regulation medium waveguide filter that can be nimble is strong and weak, has the characteristics that the implementation is simple, easily operation, has reduced the material simultaneously and has scrapped quantity, reduction in production cost. The utility model discloses to promoting the development of dielectric waveguide filter in modern miniaturization integrates communication system and have important effect.
Drawings
Fig. 1 is a schematic structural diagram of a dielectric waveguide filter with adjustable coupling strength of a preferred port of the present invention;
fig. 2 is a schematic structural diagram of two port cores of the preferred dielectric waveguide filter of the present invention;
fig. 3 is a schematic cross-sectional view along the AA' plane after the cylindrical port core of the present invention is installed in the port of the dielectric waveguide filter;
fig. 4 is a schematic cross-sectional view along the AA' plane after the stepped port core of the present invention is installed in the dielectric waveguide filter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that references in the specification to "one embodiment," "an example embodiment," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not intended to refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Moreover, where certain terms are used throughout the description and following claims to refer to particular components or features, those skilled in the art will understand that manufacturers may refer to a component or feature by different names or terms. This specification and the claims that follow do not intend to distinguish between components or features that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. In addition, the term "connected" as used herein includes any direct and indirect electrical connection. Indirect electrical connection means include connection by other means.
The utility model provides a port coupling intensity adjustable dielectric waveguide filter, which comprises at least one resonance unit, at least one port blind hole and at least one port inner core; the port blind hole is arranged on the surface of the dielectric waveguide filter and is provided with at least one non-electroplating area; the port inner core is arranged in the port blind hole, and the coupling strength of the port can be flexibly adjusted by adjusting the area of the non-electroplating area of the port blind hole and the length of the port inner core extending into the port blind hole. Preferably, the bottom surface and/or each side surface of the port blind hole is provided with at least one non-plating area with a regular shape or an irregular shape. Preferably, the surface of the dielectric waveguide filter is covered with a metal coating. The dielectric material of the dielectric waveguide filter may be a conductive material such as ceramic.
Fig. 1 is a schematic structural diagram of a dielectric waveguide filter with adjustable coupling strength of a preferred port of the present invention, in this embodiment, a dielectric waveguide filter 10 includes six resonant units 11, and each resonant unit 11 may include a resonant cavity and a resonant column, respectively. The dielectric waveguide filter 10 further includes at least one blind port hole 13 and at least one port core 102, wherein the blind port hole 13 is disposed on a surface of the dielectric waveguide filter 10. At least one non-plating area 101 can be arranged on at least one optional port blind hole 13, and a port inner core 102 is installed in the port blind hole 13; by arranging the non-plating area 101 on the port blind hole 13 and adjusting the area of the non-plating area 101 and the length 103 of the port inner core 102 extending into the port blind hole 13, the coupling strength of the port can be adjusted. By utilizing the characteristic, the port coupling strength of the dielectric waveguide filter 10 can be flexibly adjusted only by processing the port blind hole 13 through a conventional electroplating process. The method has the characteristics of simple implementation mode, simple adjustment mode and easiness in operation, and simultaneously avoids the material waste phenomenon caused by abnormal port coupling when the port coupling is not adjustable, thereby reducing the production cost.
It should be noted that the dielectric waveguide filter 10 in fig. 1 is composed of six resonant cells 11. However, the utility model discloses dielectric waveguide filter 10 that can realize capacitive negative coupling not only limits to the dielectric waveguide filter of six resonance units 11, and the dielectric waveguide filter that is greater than or equal to a resonance unit 11 and constitutes all can realize this function. For example, the dielectric waveguide filter may be a dielectric waveguide filter composed of one, two, three, four, five, seven, eight, nine, ten, or more number of resonance units 11.
As shown in fig. 1, the periphery of the blind port hole 13 is provided with an electroless plating region 101. In fact, the position and/or area of the non-plating region 101 can be freely adjusted, and preferably, at least one non-plating region 101 with a regular shape or an irregular shape can be arranged on the bottom surface and/or each side surface of the blind port hole 13. For example, the non-plating region 101 is provided only on the bottom surface or the side surface of the blind port hole 13; the bottom surface and the side surface of the blind port hole 13 may be provided with the non-plating region 101 and the like. Wherein, the bottom surface or each side surface of the blind port hole 13 can be provided with the non-plating area 101 in whole or in part.
The non-plated area 101 of the port blind hole 13 of the present invention is preferably circular, oval, square, diamond-shaped, or trapezoidal or any other shape. Preferably, the blind port hole 13 is also of a corresponding cylindrical, prismatic or stepped shape or any other shape. Of course, the specific shapes of the non-plating area 101 and the port blind hole 13 are not limited, and can be designed according to actual needs.
Fig. 3 is the cross-sectional schematic view along the AA' surface after the cylindrical port inner core 102 is installed into the port of the dielectric waveguide filter 10, the cylindrical port inner core 102 can be fixed on the dielectric waveguide filter 10 by welding, screwing or clamping, and the length 103 of the end blind hole 13 is extended by adjusting the cylindrical port inner core 102, so as to adjust the coupling strength of the port.
Fig. 4 is the cross-sectional schematic view along the AA' surface after the stepped port inner core 102 is installed in the dielectric waveguide filter 10, the stepped port inner core 102 can be fixed on the dielectric waveguide filter 10 by welding, screwing or clamping, and the length 103 of the stepped port inner core 102 extending into the port blind hole 13 can be adjusted by adjusting the length 103 of the stepped port inner core 102, so as to adjust the coupling strength of the port, in this embodiment, the stepped port inner core 102 is fixed on the dielectric waveguide filter 10 by welding, and the welding position 104 is as shown in fig. 4.
Preferably, the surface of the dielectric waveguide filter 10 is covered with a metal plating layer. The surface of the blind port hole 13 may also be covered with a metal plating layer, and a certain non-plated area 101 is disposed in the blind port hole 13 of the dielectric waveguide filter 10, that is, the surface of the blind port hole 13 includes both the non-plated area 101 and the metal plating layer.
The dielectric material of the dielectric waveguide filter 10 of the present invention is preferably ceramic, but other conductive materials may be used.
Preferably, the strength of the port coupling of the dielectric waveguide filter 10 according to the present invention is determined by the area of the non-plated region 101 of the blind port hole 13. The larger the area of the non-plated region 101 of the port blind via 13, the weaker the port coupling. Therefore, the dielectric waveguide filter 10 of the present invention can adjust and realize different port couplings by adjusting the area of the non-plating region 101 of the port blind hole 13. For example, when the port coupling required for the dielectric waveguide filter 10 is small, the area of the non-plated region 101 of the blind port hole 13 can be set to be large. When the port coupling required for the dielectric waveguide filter 10 is large, the area of the non-plated region 101 of the blind port hole 13 can be set small.
The strength of the port coupling of the dielectric waveguide filter 10 is determined by the length 103 of the port inner core 102 extending into the port blind hole 13. The longer the length 103 of the port core 102 extending into the port blind hole 13, the stronger the port coupling. Preferably, the length 103 of the port inner core 102 extending into the port blind hole 13 is greater than or equal to 0, that is, the length 103 of the port inner core 102 extending into the port blind hole 13 may be 0. Therefore, the dielectric waveguide filter 10 of the present invention can adjust and realize different port couplings by adjusting the length 103 of the port inner core 102 extending into the port blind hole 13. For example, when the port coupling required for the dielectric waveguide filter 10 is small, the length 103 of the port core 102 extending into the port blind hole 13 may be set to be short. When the port coupling required for the dielectric waveguide filter 10 is large, the length 103 of the port core 102 extending into the port blind hole 13 may be set to be long.
Therefore, the dielectric waveguide filter 10 of the present invention can adjust and realize different port couplings by adjusting the size of the non-plating region 101 and/or the length 103 of the port inner core 102 extending into the port blind hole 13.
It is to be noted that, although the structure of the dielectric waveguide filter capable of realizing capacitive negative coupling according to the present invention is described with reference to fig. 1 to 4, it is only a partial example of the implementation method of the present invention, and is not intended to limit the present invention.
To sum up, the dielectric waveguide filter of the present invention includes a resonance unit, a port blind hole and a port inner core; the port blind hole is provided with at least one non-electroplating area, and the port inner core is arranged in the port blind hole; the coupling strength of the port can be adjusted by adjusting the area of the non-electroplating area and the length of the port inner core extending into the port blind hole. Therefore, the utility model discloses only need to handle the port blind hole through conventional electroplating process, the port coupling of regulation medium waveguide filter that can be nimble is strong and weak, has the characteristics that the implementation is simple, easily operation, has reduced the material simultaneously and has scrapped quantity, reduction in production cost. The utility model discloses to promoting the development of dielectric waveguide filter in modern miniaturization integrates communication system and have important effect.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (10)
1. A port coupling strength adjustable dielectric waveguide filter is characterized by comprising at least one resonance unit, at least one port blind hole and at least one port inner core; the port blind hole is arranged on the surface of the dielectric waveguide filter and is provided with at least one non-electroplating area; the port inner core is arranged in the port blind hole, and the port coupling strength is adjusted by adjusting the area of the non-plating area and the length of the port inner core extending into the port blind hole.
2. A dielectric waveguide filter according to claim 1 wherein the surface of the dielectric waveguide filter is coated with a metal coating.
3. The dielectric waveguide filter of claim 1, wherein the surface of the blind port hole is coated with a metal plating.
4. A dielectric waveguide filter according to claim 1, wherein the bottom surface and/or each side surface of the blind port hole is provided with at least one of the electroless plated regions in a regular shape or an irregular shape.
5. A dielectric waveguide filter according to claim 4, wherein the non-plated areas are circular, elliptical, square, diamond or trapezoidal.
6. The dielectric waveguide filter of claim 1, wherein the blind port holes are cylindrical, prismatic or stepped.
7. The dielectric waveguide filter of claim 1, wherein the port core is cylindrical, prismatic, or stepped.
8. The dielectric waveguide filter of claim 1 wherein the port core is secured to the dielectric waveguide filter by welding, screwing or snapping.
9. A dielectric waveguide filter according to any one of claims 1 to 8, wherein the strength of the port coupling of the dielectric waveguide filter is determined by the size of the area of the non-plated region, and the larger the area of the non-plated region, the weaker the port coupling; and/or
The strength of the port coupling of the dielectric waveguide filter is determined by the length of the port inner core extending into the port blind hole, and the longer the length of the port inner core extending into the port blind hole is, the stronger the port coupling is.
10. The dielectric waveguide filter of claim 9 wherein the length of the port core extending into the port blind via is greater than or equal to 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020259292.1U CN211789400U (en) | 2020-03-05 | 2020-03-05 | Dielectric waveguide filter with adjustable port coupling strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020259292.1U CN211789400U (en) | 2020-03-05 | 2020-03-05 | Dielectric waveguide filter with adjustable port coupling strength |
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| Publication Number | Publication Date |
|---|---|
| CN211789400U true CN211789400U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020259292.1U Active CN211789400U (en) | 2020-03-05 | 2020-03-05 | Dielectric waveguide filter with adjustable port coupling strength |
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|---|---|
| CN (1) | CN211789400U (en) |
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- 2020-03-05 CN CN202020259292.1U patent/CN211789400U/en active Active
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