CN201369383Y - Compact microwave resonant cavity - Google Patents
Compact microwave resonant cavity Download PDFInfo
- Publication number
- CN201369383Y CN201369383Y CNU2008202238048U CN200820223804U CN201369383Y CN 201369383 Y CN201369383 Y CN 201369383Y CN U2008202238048 U CNU2008202238048 U CN U2008202238048U CN 200820223804 U CN200820223804 U CN 200820223804U CN 201369383 Y CN201369383 Y CN 201369383Y
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- cavity
- metal column
- cover plate
- resonant
- dividing plate
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Abstract
The utility model discloses a compact microwave resonant cavity which comprises an upper cover plate, a cavity, a lower cover plate, a resonant metal column and an input and output coupling hole; the upper cover plate and the lower cover plate are respectively arranged on the upper surface and the lower surface of the cavity; the input and output coupling hole is arranged on the side surface of the cavity; the compact microwave resonant cavity is characterized in that the cavity is provided with a partition board; the partition board divides the cavity into an upper part and a lower part; the resonant metal column is arranged at the lower part of the cavity; and the upper part of the cavity is also provided with a zero metal column. The compact microwave resonant cavity not only is characterized by flexible design, simple structure, convenient processing and high rejection outside the band, but also can well control the zero position, regulate the resonant frequency, and is mainly applied to electronic systems of all microwave regions, in particular to radar, missile guidance, communication and other military and civil fields.
Description
Technical field
The utility model relates to a kind of microwave cavity, specifically, relates to a kind of compact type microwave cavity that has transmission zero.
Background technology
At present, direct-coupled cavity filter and coaxial cavity waveguide filter are most widely used waveguide filters.In order to improve the selectivity of filter on stopband, present waveguide filter often adopts the progression that increases filter, adds methods such as short branch in the waveguide outside.All there is shortcoming separately in these two kinds of methods commonly used: preceding a kind of method has not only increased the volume of filter, but also can increase Insertion Loss; Then a kind of method will increase the volume and weight of filter, and this shortcoming is especially outstanding when low-frequency range, because the length of short branch is approximately the quarter-wave guide wavelength.
The utility model content
The purpose of this utility model is to provide a kind of compact type microwave device, and the volume of reduction of device reduces difficulty of processing.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of compact type microwave cavity, comprise upper cover plate, cavity, lower cover, resonance metal column and input and output coupled structure, upper cover plate and lower cover are arranged at respectively on the upper and lower surfaces of cavity, the input and output coupled structure is arranged on the cavity side, it is characterized in that, be provided with a dividing plate in the described cavity, cavity is divided into two parts up and down by dividing plate, the resonance metal column is arranged in the lower part of cavity, also is provided with the metal column at zero point in the top of cavity.
Described zero point, the metal column bottom linked to each other with dividing plate, and the top is unsettled.
Described resonance metal column top links to each other with dividing plate, and the bottom is unsettled.
Also be provided with coupling aperture on the described dividing plate, be communicated with by coupling aperture two parts up and down with cavity.
Described zero point, metal column was used to regulate the frequency of resonant cavity transmission zero.
Described resonance metal column is used to regulate the resonance frequency of resonant cavity.
The shape of the coupling aperture between the upper and lower part of described cavity can be rectangle, circle, ellipse or other polygon.
The utility model is by being divided into two cavity, and metal column and resonance metal column at zero point is set respectively in two parts up and down of cavity, thereby in a cavity, realize a transmission zero and transmission pole, dwindled the volume and the difficulty of processing of device greatly.By adjust zero point in the cavity metal column height with and position on dividing plate, can be good at the control transmission position at zero point; Height by adjusting cavity interior resonance metal column with and position on dividing plate, can be good at controlling resonance frequency.By changing the size of input, output coupling aperture, can control the coupling amount of input, export structure, bandwidth that can control filters.
Compared with prior art, the utlity model has following advantage:
One. under the lower situation of frequency, when adopting the filter resonance unit of the utility model conduct, the stopband selectivity is good, and is littler than common short branch filter volume, weight is lighter.
Two. the outer common direct-coupled cavity filter of rejection ratio of the filter band that adopts the utility model to make is better.
Three. under same design objective, the filter that adopts this resonant cavity to make is easier than the realization of cross-couplings cavity filter, makes more flexibly, processes more convenient.
Four. this resonant cavity has increased the number of design parameter, makes design more flexible, is easier to regulate the position of transmission zero.
The utility model can be widely used in the electronic system of each microwave band, particularly military affairs and civil areas such as radar, missile guidance, communication.
Description of drawings
Fig. 1 is the structural representation of the utility model-embodiment one.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the structural representation of the utility model-embodiment two.
Embodiment
Embodiment one
As Fig. 1, Fig. 2, compact type microwave cavity, comprise upper cover plate 1, cavity 2, lower cover 3, resonance metal column 4 and input and output coupled structure 7, upper cover plate 1 and lower cover 3 are arranged on the upper and lower surfaces of cavity 2, input/output structure 7 is arranged on cavity 2 sides, it is characterized in that, also be provided with a dividing plate 8 in the inside of cavity 2, dividing plate 8 is divided into two parts up and down with cavity 2.The resonance metal column is arranged at the lower part of cavity 2, and its top links to each other with dividing plate, is used to regulate the resonance frequency of resonant cavity; Also be provided with metal column 5 at zero point in the top of cavity 2, zero point, metal column 5 bottom linked to each other with dividing plate 8, was used to regulate the frequency of resonant cavity transmission zero.Between a sidewall of dividing plate 9 and cavity 2, also be provided with a coupling aperture 6, be communicated with by coupling aperture 6 two parts up and down with cavity 2.Input, output coupled structure 7 are used for linking to each other with other resonant cavity or microwave device.
Processing of the present utility model is very simple, only needs this resonant cavity is divided into upper cover plate, and cavity and lower cover three parts are carried out milling respectively, at last three parts is got final product by the screw combination is fixing.
This compact resonant cavity is particularly useful for the making of devices such as filter, duplexer.Not only can mix use with the resonant cavity and the coupled structure of other type, and can satisfy higher frequency with less exponent number and select index, has smaller volume satisfying under the situation of identical index in other words, make device miniaturization, thereby alleviate the weight of entire device, reduce the Insertion Loss of device, can also reduce the influence of waveguide filter parasitic passband simultaneously.
Embodiment two
As shown in Figure 3, embodiment two is with the difference of embodiment 1, the position difference of coupling aperture 6, and other structures are all identical.Coupling aperture 6 is between dividing plate 8 and 2 one sidewalls of cavity among the embodiment one, and coupling aperture 6 is positioned on the dividing plate 8 in the present embodiment.
Claims (4)
1, a kind of compact type microwave cavity, comprise upper cover plate (1), cavity (2), lower cover (3), resonance metal column (4) and input and output coupling aperture (7), upper cover plate (1) and lower cover (3) are provided with respectively on the upper and lower surfaces of cavity (2), input and output coupling aperture (7) is arranged on cavity (2) side, it is characterized in that, be provided with a dividing plate (8) in the described cavity (2), by dividing plate (8) cavity (2) is divided into two parts up and down, resonance metal column (4) is arranged in the lower part of cavity (2), also is provided with metal column at zero point (5) in the top of cavity (2).
2, compact type microwave cavity according to claim 1 is characterized in that, described metal column at zero point (5) bottom links to each other with dividing plate (8), and the top is unsettled.
3, compact type microwave cavity according to claim 1 is characterized in that, described resonance metal column (4) top links to each other with dividing plate (8), and the bottom is unsettled.
4, compact type microwave cavity according to claim 1 is characterized in that, also is provided with coupling aperture (6) on the described dividing plate (8), is communicated with by coupling aperture (6) two parts up and down with cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202238048U CN201369383Y (en) | 2008-12-26 | 2008-12-26 | Compact microwave resonant cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202238048U CN201369383Y (en) | 2008-12-26 | 2008-12-26 | Compact microwave resonant cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369383Y true CN201369383Y (en) | 2009-12-23 |
Family
ID=41488274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202238048U Expired - Fee Related CN201369383Y (en) | 2008-12-26 | 2008-12-26 | Compact microwave resonant cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369383Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237562A (en) * | 2010-04-30 | 2011-11-09 | 王俊元 | Dielectric material filter structure and manufacturing method thereof |
| CN102881977A (en) * | 2011-07-15 | 2013-01-16 | 凯镭思通讯设备（上海）有限公司 | Single-cavity filter with load coupling plate |
| CN104267455A (en) * | 2014-10-08 | 2015-01-07 | 江南大学 | Surface plasma filter based on connection bridge of rectangular ring resonant cavity and incident waveguide |
| CN114300854A (en) * | 2022-01-21 | 2022-04-08 | 维沃移动通信有限公司 | Folded waveguide resonant cavity antenna and electronic device |
-
2008
- 2008-12-26 CN CNU2008202238048U patent/CN201369383Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237562A (en) * | 2010-04-30 | 2011-11-09 | 王俊元 | Dielectric material filter structure and manufacturing method thereof |
| CN102881977A (en) * | 2011-07-15 | 2013-01-16 | 凯镭思通讯设备（上海）有限公司 | Single-cavity filter with load coupling plate |
| CN104267455A (en) * | 2014-10-08 | 2015-01-07 | 江南大学 | Surface plasma filter based on connection bridge of rectangular ring resonant cavity and incident waveguide |
| CN114300854A (en) * | 2022-01-21 | 2022-04-08 | 维沃移动通信有限公司 | Folded waveguide resonant cavity antenna and electronic device |
| WO2023138519A1 (en) * | 2022-01-21 | 2023-07-27 | 维沃移动通信有限公司 | Folded waveguide resonator antenna and electronic device |
| CN114300854B (en) * | 2022-01-21 | 2024-06-04 | 维沃移动通信有限公司 | Folded waveguide resonant cavity antenna and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20131226 |