WO2022048158A1 - Filling medium-containing filter - Google Patents
Filling medium-containing filter Download PDFInfo
- Publication number
- WO2022048158A1 WO2022048158A1 PCT/CN2021/087344 CN2021087344W WO2022048158A1 WO 2022048158 A1 WO2022048158 A1 WO 2022048158A1 CN 2021087344 W CN2021087344 W CN 2021087344W WO 2022048158 A1 WO2022048158 A1 WO 2022048158A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filling medium
- cavity
- dielectric constant
- cover plate
- copper sheet
- Prior art date
Links
Classifications
-
- 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
Definitions
- the present invention relates to the field of filters, in particular to a filter containing a filling medium.
- the main purpose of the present invention is to provide a filter containing a filling medium which can reduce the frequency of the filter and reduce the cost.
- a filter containing a filling medium comprising a cavity and a cover plate, an input connector and an output connector are arranged outside the cavity, and an input copper sheet is arranged inside the cavity
- the cavity is also provided with a tuning screw
- the cavity is also provided with a filling medium
- the filling medium is an insulator with a dielectric constant greater than that of air.
- the filling medium is filled between the cavity and the cover plate.
- the filling medium is plastic or ceramic or glass.
- the present invention has the following advantages. Its working principle is that the frequency is reduced by changing the original dielectric constant of air by increasing the filling medium, thereby eliminating the need for the resonant column to have a flange style.
- This design uses a non-metal insulator, which is different from the dielectric constant of air to change the dielectric constant of the original air cavity, so as to obtain a resonant single cavity with the required frequency and high Q value.
- This design has the advantages of convenient processing. , the cost is low, the realization is relatively simple, and the control is easy. According to the needs, the insulating materials with different dielectric constants can be adjusted arbitrarily to meet the needs.
- the dielectric constant of air is 1.000585, which is relatively small, and the dielectric constant of insulators is larger than that of air, such as plastic or ceramic or glass, which not only has a dielectric constant several times larger than that of air, thus It can reduce the frequency, and it is easy to process, and it is convenient to place it in the cavity as a whole.
- FIG. 1 is a schematic structural diagram of a filter containing a filled medium according to the present invention.
- FIG. 2 is a schematic structural diagram of a cavity containing a dielectric-filled filter according to the present invention.
- a filter containing a filled medium includes a cavity 2 and a cover plate 1 , an input connector 3 and an output connector 4 are arranged outside the cavity 2 , and an input copper is arranged inside the cavity 2 Sheet 5 and output copper sheet 6, the cavity 2 is also provided with a tuning screw 7, and the cavity 2 is also provided with a filling medium 8, and the filling medium 8 is an insulator with a dielectric constant greater than that of air.
- the filling medium 8 is filled between the cavity 2 and the cover plate 1 .
- the filling medium 8 is plastic or ceramic or glass.
- a filter containing a filling medium 8 in this scheme works by increasing the filling medium 8 to change the original dielectric constant of the air to reduce the frequency, thereby eliminating the need for the resonant column to have a flange style.
- This design uses a non-metallic insulator, which is different from the dielectric constant of air to change the dielectric constant of the original air cavity, so as to obtain a resonant single cavity with the required frequency and high Q value.
- This design has the advantages of convenient processing. , the cost is low, the realization is relatively simple, and the control is easy. According to the needs, the insulating materials with different dielectric constants can be adjusted arbitrarily to meet the needs.
- the dielectric constant of air is 1.000585, which is relatively small, and the dielectric constant of insulators is larger than that of air, such as plastic or ceramic or glass, which not only has a dielectric constant several times larger than that of air, thus The frequency can be reduced, and it is easy to process, and it is convenient to place it in the cavity 2 as a whole.
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Disclosed in the present application is a filling medium-containing filter. The filter comprises a cavity and a cover plate; an input connector and an output connector are provided outside the cavity, and an input copper sheet, an output copper sheet, a tuning screw, and a filling medium are provided in the cavity; the filling medium is fully filled between the cavity and the cover plate, the filling medium is an insulator having a dielectric constant greater than that of air, and the filling medium is plastic or ceramic or glass. The solution provided by the present application solves the problem that the frequency cannot reach the required frequency band range due to small dimensions and heights in the design of filters, duplexers, and combiners, and avoids the problems that the insertion loss index does not meet the requirements due to the use of a flange plate-type resonance column and the cost of the flange plate-type resonance column is high.
Description
本发明涉及滤波器领域，特别涉及一种含有填充介质的滤波器。The present invention relates to the field of filters, in particular to a filter containing a filling medium.
在常规滤波器、双工器、多工器设计中由于产品要求外形尺寸较小，深度较浅等原因达不到所需求的频率范围，这是因为外形尺寸越大，深度越深频率会越低，反之则相对较高，导致设计指标无法满足需求。现有技术中有使用法兰盘式谐振柱来降低频率的方案，但是这种方案的缺点是插入损耗指标不满足要求并且法兰盘谐振柱成本较高。In the design of conventional filters, duplexers, and multiplexers, the required frequency range cannot be achieved due to the small size and shallow depth of the product. This is because the larger the size, the deeper the depth, the higher the frequency. low, and vice versa is relatively high, resulting in the design index can not meet the demand. In the prior art, there is a solution of using a flanged resonant column to reduce the frequency, but the disadvantage of this solution is that the insertion loss index does not meet the requirements and the cost of the flanged resonant column is high.
针对现有技术存在的不足，本发明的主要目的在于提供一种能够降低滤波器频率且降低了成本的含有填充介质的滤波器。In view of the deficiencies in the prior art, the main purpose of the present invention is to provide a filter containing a filling medium which can reduce the frequency of the filter and reduce the cost.
为实现上述目的，本发明提供了如下技术方案：一种含有填充介质的滤波器，包括腔体和盖板，所述腔体外设置有输入接头和输出接头，所述腔体内设置有输入铜片和输出铜片，所述腔体内还设置有调谐螺钉，所述腔体内还设置有填充介质，所述填充介质为介电常数大于空气的绝缘体。In order to achieve the above purpose, the present invention provides the following technical solutions: a filter containing a filling medium, comprising a cavity and a cover plate, an input connector and an output connector are arranged outside the cavity, and an input copper sheet is arranged inside the cavity And the output copper sheet, the cavity is also provided with a tuning screw, and the cavity is also provided with a filling medium, and the filling medium is an insulator with a dielectric constant greater than that of air.
优选的，所述填充介质充满腔体与盖板之间。Preferably, the filling medium is filled between the cavity and the cover plate.
优选的，所述填充介质为塑胶或陶瓷或玻璃。Preferably, the filling medium is plastic or ceramic or glass.
本发明相对于现有技术具有如下优点，其工作原理是通过增加填充介质，更改原本空气介电常数降低频率，免除谐振柱带有法兰盘样式。此设计是利用非金属材质的绝缘体，其与空气的介电常数不同的原理改变原有空气腔的介电常数，从而得到所需要的频率和高Q值的谐振单腔，此设计具有加工方便，成本低廉，实现比较简单，易于控制等优点。根据需求可以通过使用不同的介电常数的绝缘材质可任意调整从而达到需求。本方案解决了滤波器、双工器、合路器设计中由于外形尺寸以及高度较小的情况下使频率达到需求的频段范围。避免了使用法兰盘式谐振柱造成的插入损耗指标不满足要求以及法兰盘谐振柱成本较高的问题。其中空气的介电常数为1.000585，已经是比较小的了，而绝缘体的介电常数均比空气的介电常数大，例如塑胶或陶瓷或玻璃，其不仅介电常数比空气大数倍，从而能够降低降低频率，并且易于加工，方便整体放置到腔体内。Compared with the prior art, the present invention has the following advantages. Its working principle is that the frequency is reduced by changing the original dielectric constant of air by increasing the filling medium, thereby eliminating the need for the resonant column to have a flange style. This design uses a non-metal insulator, which is different from the dielectric constant of air to change the dielectric constant of the original air cavity, so as to obtain a resonant single cavity with the required frequency and high Q value. This design has the advantages of convenient processing. , the cost is low, the realization is relatively simple, and the control is easy. According to the needs, the insulating materials with different dielectric constants can be adjusted arbitrarily to meet the needs. This solution solves the required frequency range in the design of filters, duplexers, and combiners due to the small size and height. The problems that the insertion loss index does not meet the requirements caused by the use of the flanged resonant column and the high cost of the flanged resonant column are avoided. Among them, the dielectric constant of air is 1.000585, which is relatively small, and the dielectric constant of insulators is larger than that of air, such as plastic or ceramic or glass, which not only has a dielectric constant several times larger than that of air, thus It can reduce the frequency, and it is easy to process, and it is convenient to place it in the cavity as a whole.
图1为本发明的一种含有填充介质的滤波器的结构示意。FIG. 1 is a schematic structural diagram of a filter containing a filled medium according to the present invention.
图2为本发明的一种含有填充介质的滤波器的腔体的结构示意图。FIG. 2 is a schematic structural diagram of a cavity containing a dielectric-filled filter according to the present invention.
图中：1、盖板；2、腔体；3、输入接头；4、输出接头；5、输入铜片；6、输出铜片；7、调谐螺钉；8、填充介质。In the figure: 1. Cover plate; 2. Cavity; 3. Input connector; 4. Output connector; 5. Input copper sheet; 6. Output copper sheet; 7. Tuning screw; 8. Filling medium.
下面结合附图对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings.
如图1所示，一种含有填充介质的滤波器，包括腔体2和盖板1，所述腔体2外设置有输入接头3和输出接头4，所述腔体2内设置有输入铜片5和输出铜片6，所述腔体2内还设置有调谐螺钉7，所述腔体2内还设置有填充介质8，所述填充介质8为介电常数大于空气的绝缘体。As shown in FIG. 1 , a filter containing a filled medium includes a cavity 2 and a cover plate 1 , an input connector 3 and an output connector 4 are arranged outside the cavity 2 , and an input copper is arranged inside the cavity 2 Sheet 5 and output copper sheet 6, the cavity 2 is also provided with a tuning screw 7, and the cavity 2 is also provided with a filling medium 8, and the filling medium 8 is an insulator with a dielectric constant greater than that of air.
优选的，所述填充介质8充满腔体2与盖板1之间。Preferably, the filling medium 8 is filled between the cavity 2 and the cover plate 1 .
优选的，所述填充介质8为塑胶或陶瓷或玻璃。Preferably, the filling medium 8 is plastic or ceramic or glass.
本方案的一种含有填充介质8的滤波器，其工作原理是通过增加填充介质8，更改原本空气介电常数降低频率，免除谐振柱带有法兰盘样式。此设计是利用非金属材质的绝缘体，其与空气的介电常数不同的原理改变原有空气腔的介电常数，从而得到所需要的频率和高Q值的谐振单腔，此设计具有加工方便，成本低廉，实现比较简单，易于控制等优点。根据需求可以通过使用不同的介电常数的绝缘材质可任意调整从而达到需求。本方案解决了滤波器、双工器、合路器设计中由于外形尺寸以及高度较小的情况下使频率达到需求的频段范围。避免了使用法兰盘式谐振柱造成的插入损耗指标不满足要求以及法兰盘谐振柱成本较高的问题。其中空气的介电常数为1.000585，已经是比较小的了，而绝缘体的介电常数均比空气的介电常数大，例如塑胶或陶瓷或玻璃，其不仅介电常数比空气大数倍，从而能够降低降低频率，并且易于加工，方便整体放置到腔体2内。 A filter containing a filling medium 8 in this scheme works by increasing the filling medium 8 to change the original dielectric constant of the air to reduce the frequency, thereby eliminating the need for the resonant column to have a flange style. This design uses a non-metallic insulator, which is different from the dielectric constant of air to change the dielectric constant of the original air cavity, so as to obtain a resonant single cavity with the required frequency and high Q value. This design has the advantages of convenient processing. , the cost is low, the realization is relatively simple, and the control is easy. According to the needs, the insulating materials with different dielectric constants can be adjusted arbitrarily to meet the needs. This solution solves the required frequency range in the design of filters, duplexers, and combiners due to the small size and height. The problems that the insertion loss index does not meet the requirements caused by the use of the flanged resonant column and the high cost of the flanged resonant column are avoided. Among them, the dielectric constant of air is 1.000585, which is relatively small, and the dielectric constant of insulators is larger than that of air, such as plastic or ceramic or glass, which not only has a dielectric constant several times larger than that of air, thus The frequency can be reduced, and it is easy to process, and it is convenient to place it in the cavity 2 as a whole.
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
在此处键入序列表自由内容描述段落。Type the Sequence Listing free content description paragraph here.
Claims (3)
- 一种含有填充介质的滤波器，包括腔体和盖板，所述腔体外设置有输入接头和输出接头，所述腔体内设置有输入铜片和输出铜片，所述腔体内还设置有调谐螺钉，其特征在于：所述腔体内还设置有填充介质，所述填充介质为介电常数大于空气的绝缘体。A filter containing a filling medium, including a cavity and a cover plate, an input connector and an output connector are arranged outside the cavity, an input copper sheet and an output copper sheet are arranged in the cavity, and a tuning is also arranged in the cavity The screw is characterized in that: the cavity is further provided with a filling medium, and the filling medium is an insulator with a dielectric constant greater than that of air.
- 根据权利要求1所述的一种含有填充介质的滤波器，其特征在于：所述填充介质充满腔体与盖板之间。The filter containing a filling medium according to claim 1, wherein the filling medium fills the space between the cavity and the cover plate.
- 根据权利要求1所述的一种含有填充介质的滤波器，其特征在于：所述填充介质为塑胶或陶瓷或玻璃。The filter containing a filling medium according to claim 1, wherein the filling medium is plastic, ceramic or glass.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010905051.4 | 2020-09-01 | ||
| CN202010905051.4A CN112002971A (en) | 2020-09-01 | 2020-09-01 | Filter containing filling medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022048158A1 true WO2022048158A1 (en) | 2022-03-10 |
Family
ID=73464980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2021/087344 WO2022048158A1 (en) | 2020-09-01 | 2021-04-15 | Filling medium-containing filter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112002971A (en) |
| WO (1) | WO2022048158A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002971A (en) * | 2020-09-01 | 2020-11-27 | 苏州诺泰信通讯有限公司 | Filter containing filling medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100019865A1 (en) * | 2005-12-22 | 2010-01-28 | Francois Baron | Module With Frequency-Tunable Function |
| CN104170162A (en) * | 2013-11-18 | 2014-11-26 | 华为技术有限公司 | Resonator, filter, duplexer and multiplexer |
| WO2018119825A1 (en) * | 2016-12-29 | 2018-07-05 | 深圳市大富科技股份有限公司 | Tem mode filter and communication device |
| CN110534855A (en) * | 2019-07-26 | 2019-12-03 | 苏州诺泰信通讯有限公司 | A kind of superpower capacitive coupling structure of low frequency project |
| CN112002971A (en) * | 2020-09-01 | 2020-11-27 | 苏州诺泰信通讯有限公司 | Filter containing filling medium |
-
2020
- 2020-09-01 CN CN202010905051.4A patent/CN112002971A/en active Pending
-
2021
- 2021-04-15 WO PCT/CN2021/087344 patent/WO2022048158A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100019865A1 (en) * | 2005-12-22 | 2010-01-28 | Francois Baron | Module With Frequency-Tunable Function |
| CN104170162A (en) * | 2013-11-18 | 2014-11-26 | 华为技术有限公司 | Resonator, filter, duplexer and multiplexer |
| WO2018119825A1 (en) * | 2016-12-29 | 2018-07-05 | 深圳市大富科技股份有限公司 | Tem mode filter and communication device |
| CN110534855A (en) * | 2019-07-26 | 2019-12-03 | 苏州诺泰信通讯有限公司 | A kind of superpower capacitive coupling structure of low frequency project |
| CN112002971A (en) * | 2020-09-01 | 2020-11-27 | 苏州诺泰信通讯有限公司 | Filter containing filling medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112002971A (en) | 2020-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207353438U (en) | Electromagnetism hybrid coupled cavity body filter | |
| WO2022048158A1 (en) | Filling medium-containing filter | |
| CN206864583U (en) | A kind of dielectric filter be easy to regulating frequency and couple bandwidth | |
| CN202395127U (en) | Coupled structure between adjacent dielectric resonators of TE01 mold and filter | |
| CN105048051A (en) | Tunable substrate integrated waveguide circular resonant cavity filter | |
| CN108550964A (en) | A kind of ceramic dielectric waveguide filter based on capacitive cross coupling flying bar | |
| CN201523058U (en) | Controllable electromagnetic coupling dielectric resonator filter | |
| CN101699648B (en) | Controllable electromagnetic coupling dielectric resonator filter | |
| CN103441317A (en) | Cavity filter with rotation adjustable loop | |
| WO2020048063A1 (en) | Cavity high-q three-mode dielectric resonance structure and filter containing resonance structure | |
| CN101312263A (en) | Cavity filter and duplex device | |
| CN105720331A (en) | Single-cavity three-mode band-pass duplexer based on microstrip feed gap coupling | |
| CN106654476A (en) | Novel four-mode dielectric band-pass filter | |
| CN212434806U (en) | Filter containing filling medium | |
| CN103647123B (en) | Half mode substrate integration waveguide horizontal symmetrical filter | |
| CN206225509U (en) | A kind of new three moulds medium bandpass filter | |
| WO2022001570A1 (en) | Band-stop filter and radio frequency device | |
| CN205355216U (en) | Diaphragm formula tunable filter | |
| CN204088531U (en) | Close-coupled bimodulus dual-resonator microwave filter | |
| CN109888442A (en) | A kind of four mould medium bandpass filters | |
| CN115911792B (en) | Double-zero terahertz waveguide filter based on concave resonant cavity | |
| CN206422195U (en) | A kind of new four moulds medium bandpass filter | |
| CN105048052B (en) | A kind of tunable dielectric resonator and dielectric filter | |
| CN103715484A (en) | Cavity filter improving temperature drift | |
| CN104733815A (en) | Ridge waveguide dielectric filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21863228 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 21863228 Country of ref document: EP Kind code of ref document: A1 |