CN206332149U - Dielectric filter near-end parasitic harmonic wave suppresses structure - Google Patents
Dielectric filter near-end parasitic harmonic wave suppresses structure Download PDFInfo
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- CN206332149U CN206332149U CN201621365477.0U CN201621365477U CN206332149U CN 206332149 U CN206332149 U CN 206332149U CN 201621365477 U CN201621365477 U CN 201621365477U CN 206332149 U CN206332149 U CN 206332149U
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Abstract
Suppress structure the utility model discloses a kind of dielectric filter near-end parasitic harmonic wave, including main cavity, also include input connector, bandpass filter, dielectric filter and out connector, above-mentioned input connector is arranged on the lateral wall of above-mentioned main cavity with out connector, above-mentioned bandpass filter, dielectric filter is arranged in above-mentioned main cavity, above-mentioned input connector is connected with above-mentioned bandpass filter, above-mentioned bandpass filter is connected with above-mentioned dielectric filter, above-mentioned dielectric filter is connected with above-mentioned out connector, the bandwidth of above-mentioned dielectric filter is contained within the bandwidth of above-mentioned bandpass filter.The beneficial effects of the utility model are：The structure can effectively suppress the parasitic harmonic wave of dielectric filter near-end.
Description
Technical field
The utility model is related to wave filter technology field, and in particular to a kind of dielectric filter near-end parasitic harmonic wave suppresses knot
Structure.
Background technology
With the progress and development of microwave technology, dielectric filter is widely used in leading to as a kind of frequency-selective devices
Believe technical field, especially technology for radio frequency field.As dielectric filter is widely used in communication transmitting and the base station received
In, for selecting signal of communication, eliminate the clutter and interference signal outside signal of communication.
And in the design of dielectric filter, in order to greatly improve the electrical performance indexes of wave filter, it is necessary to solve medium filter
Ripple device near-end parasitic stray, this is also the key point for determining that dielectric filter is qualified.
Utility model content
The purpose of this utility model is to provide a kind of dielectric filter near-end parasitic harmonic wave to suppress structure, and the structure can have
Effect suppresses the parasitic harmonic wave of dielectric filter near-end.
To achieve the above object, the utility model provides following technical scheme：
A kind of dielectric filter near-end parasitic harmonic wave suppresses structure, including main cavity, is also filtered including input connector, band logical
Ripple device, dielectric filter and out connector, above-mentioned input connector are arranged on the outside of above-mentioned main cavity with out connector
On wall, above-mentioned bandpass filter, dielectric filter are arranged in above-mentioned main cavity, above-mentioned input connector and above-mentioned bandpass filtering
Device is connected, and above-mentioned bandpass filter is connected with above-mentioned dielectric filter, and above-mentioned dielectric filter is connected with above-mentioned out connector,
The bandwidth of above-mentioned dielectric filter is contained within the bandwidth of above-mentioned bandpass filter.
Preferably, above-mentioned bandpass filter includes resonant cavity, cover plate, resonant rod, adjusting screw rod, and resonant rod is arranged on lid
On plate, adjusting screw rod is arranged on resonant cavity.
Operation principle of the present utility model is：One bandpass filter, bandpass filter are set before dielectric filter
Bandwidth to be wider than the width of dielectric filter, insertion loss is as small as possible, for substituting conventional sugarcoated haws low pass filter,
Because the proximal inhibition effect of bandpass filter is good more than low pass proximal inhibition effect.So as to which dielectric filter near-end is parasitic
Harmonic wave is effectively curbed.
The beneficial effects of the utility model are：The structure can effectively suppress the parasitic harmonic wave of dielectric filter near-end.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and protection model of the present utility model can not be limited with this
Enclose.
The utility model specific implementation technical scheme be：
As shown in figure 1,
A kind of near-end parasitic harmonic wave of dielectric filter 5 suppresses structure, including main cavity 1, also including input connector 2, band
Bandpass filter 4, dielectric filter 5 and out connector 3, above-mentioned input connector 2 are arranged on above-mentioned main chamber with out connector 3
On the lateral wall of body 1, above-mentioned bandpass filter 4, dielectric filter 5 are arranged in above-mentioned main cavity 1, above-mentioned input connector 2
Be connected with above-mentioned bandpass filter 4, above-mentioned bandpass filter 4 is connected with above-mentioned dielectric filter 5, above-mentioned dielectric filter 5 with
Above-mentioned out connector 3 is connected, and the bandwidth of above-mentioned dielectric filter 5 is contained within the bandwidth of above-mentioned bandpass filter.
Above-mentioned bandpass filter 4 includes resonant cavity, cover plate, resonant rod, adjusting screw rod, and resonant rod is installed on the cover board,
Adjusting screw rod is arranged on resonant cavity.
Operation principle of the present utility model is：One bandpass filter 4, bandpass filtering are set before dielectric filter 5
The bandwidth of device 4 will be wider than the width of dielectric filter 5, and insertion loss is as small as possible, for substituting conventional sugarcoated haws low pass filtered
Ripple device, because the proximal inhibition effect of bandpass filter 4 is good more than low pass proximal inhibition effect.So as to by dielectric filter 5
Near-end parasitic harmonic wave is effectively curbed.
The beneficial effects of the utility model are：The structure can effectively suppress the parasitic harmonic wave of the near-end of dielectric filter 5.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model know-why is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (2)
1. a kind of dielectric filter near-end parasitic harmonic wave suppresses structure, including main cavity, it is characterised in that also including input connection
Device, bandpass filter, dielectric filter and out connector, above-mentioned input connector are arranged on above-mentioned main chamber with out connector
On the lateral wall of body, above-mentioned bandpass filter, dielectric filter are arranged in above-mentioned main cavity, above-mentioned input connector with it is above-mentioned
Bandpass filter is connected, and above-mentioned bandpass filter is connected with above-mentioned dielectric filter, and above-mentioned dielectric filter connects with above-mentioned output
Connect device to be connected, the bandwidth of above-mentioned dielectric filter is contained within the bandwidth of above-mentioned bandpass filter.
2. dielectric filter near-end parasitic harmonic wave according to claim 1 suppresses structure, it is characterised in that above-mentioned band logical filter
Ripple device includes resonant cavity, cover plate, resonant rod, adjusting screw rod, and resonant rod is installed on the cover board, and adjusting screw rod is arranged on resonator
On body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365477.0U CN206332149U (en) | 2016-12-13 | 2016-12-13 | Dielectric filter near-end parasitic harmonic wave suppresses structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365477.0U CN206332149U (en) | 2016-12-13 | 2016-12-13 | Dielectric filter near-end parasitic harmonic wave suppresses structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206332149U true CN206332149U (en) | 2017-07-14 |
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ID=59289959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621365477.0U Active CN206332149U (en) | 2016-12-13 | 2016-12-13 | Dielectric filter near-end parasitic harmonic wave suppresses structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206332149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020132973A1 (en) * | 2018-12-26 | 2020-07-02 | 华为技术有限公司 | Dielectric filter, duplexer, and communication device |
-
2016
- 2016-12-13 CN CN201621365477.0U patent/CN206332149U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020132973A1 (en) * | 2018-12-26 | 2020-07-02 | 华为技术有限公司 | Dielectric filter, duplexer, and communication device |
| US11909086B2 (en) | 2018-12-26 | 2024-02-20 | Huawei Technologies Co., Ltd. | Dielectric filter, duplexer, and communications device |
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| CP01 | Change in the name or title of a patent holder |
Address after: 215000 11 Xingtai Road, Taiping Street, Xiangcheng District, Suzhou, Jiangsu Patentee after: SUZHOU PERFECT ELECTRONICS TECHNOLOGY CO., LTD. Address before: 215000 11 Xingtai Road, Taiping Street, Xiangcheng District, Suzhou, Jiangsu Patentee before: Suzhou wave communication technology Limited by Share Ltd |