CN106299562A - A kind of capacitive coupling structure for metallic cavity wave filter product - Google Patents
A kind of capacitive coupling structure for metallic cavity wave filter product Download PDFInfo
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- CN106299562A CN106299562A CN201510278661.5A CN201510278661A CN106299562A CN 106299562 A CN106299562 A CN 106299562A CN 201510278661 A CN201510278661 A CN 201510278661A CN 106299562 A CN106299562 A CN 106299562A
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- capacitive coupling
- coupling structure
- wave filter
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- metallic cavity
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Abstract
The present invention relates to a kind of capacitive coupling structure for metallic cavity wave filter product, this structure is U-shaped or inverted U, including cross-brace medium and the coupling piece that is arranged on cross-brace medium two ends, each coupling piece offers the U-shaped hole passed for metal debugging screw.Compared with prior art, the present invention has the conforming problem solved when suppressing to require harsh production.
Description
Technical field
The present invention relates to a kind of capacitive coupling structure, especially relate to a kind of for metallic cavity wave filter product
Capacitive coupling structure.
Background technology
Microwave refers in frequency between 300MHz (1MHz=1.0 × 10E6Hz) to 300GHz (1
GHz=1.0 × 10E9Hz) signal of frequency range.Microwave communication originates from and grows up in World War II
Radar Technology, is widely used to telecommunications network all over the world at present, owing to its bandwidth, capacity are big,
May be used for the transmission of various telecommunication service, such as phone, telegram, data, fax and color television etc., it
Occupation rate in network erection is in the gesture accelerating rising.Therefore, the research of microwave communication to developing national economy and is expired
Foot social need is significant.
Most basic microwave telecommunication system is to set up a microwave communication between two microwave stations to connect.Each microwave
Three parts are mainly included: digital modems, radio-frequency front-end and antenna on station structure.Wherein modem is used
In subscriber signal being modulated into radiofrequency signal (300KHz-300MHz)；Radio-frequency front-end is by the modulated radio frequency made
Signal carries to microwave or millimeter wave frequency band and carries out being amplified to power being about 1w；And passive parabolic shape antenna
For launching and receiving these microwave signals.Duplexer is the key element in radio-frequency front-end, and its function is to make
The microwave signal launched and receive without passing through with influencing each other simultaneously, also effectively to suppress other noise with minimum loss
The signal impact on system, the signal being directly connected to whole microwave telecommunication system is transmitted matter by the quality of its electrical property
Amount.Microwave system at below 6GHz uses coaxial type duplexer mostly, and more than 6GHz then more uses ripple
Conductivity type duplexer.
Cavity body filter has a sound construction, frequency coverage width, high side parasitic passband farther out, concordance is good,
Volume is little, Q-value is moderate, and in the range of full temperature, stability is reliable, easy input and output 50 ohms impedance match, standing wave
Little cascading use, in band, amplitude-frequency characteristic is smooth, and the little Out-of-band rejection of insertion loss is high, flexible design easily installation etc.
Advantage, therefore,
Microwave Cavity Filter is transmitting terminal and the requisite device of receiving terminal in Modern Communication System, and it is to signal
Play centrifugation, allow useful signal is the most undamped to be passed through, decay suppression the biggest to garbage signal its lead to
Cross.And along with the development of radio communication, the frequency band between signal is more and more narrow, mutually suppression requires more and more higher, this
Just index, reliability and the producible concordance of wave filter is had higher requirement.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of for wire chamber
The capacitive coupling structure of fluid filter product, solve when suppression requires harsh production conforming asks
Topic.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of capacitive coupling structure for metallic cavity wave filter product, this structure is U-shaped or inverted U, bag
Include cross-brace medium and be arranged on the coupling piece at cross-brace medium two ends, each coupling piece offers for
The U-shaped hole that metal debugging screw passes.
Described cross-brace medium is provided with the medium screw hole passed for medium screw.
Described medium screw hole is provided with one, arranges the center of cross-brace medium.
Described medium screw hole is provided with multiple, in laterally or longitudinally arranging.
Described cross-brace medium is provided with symmetrically arranged U-shaped groove.
Described metal debugging screw is provided with insulated sleeve.
This capacitive coupling structure is used for metallic cavity resonator.
Compared with prior art, the invention have the advantages that
1. coupling adjustable extent is wide, suppresses higher wave filter.
2. debugging is simple, can avoid because capacitive coupling is non-adjustable, and in the rejection and waste caused and process of rework
The product defects that causes or scrap.
3. the production debugging time is shorter, more convenient.
4. performance is more stable, more reliable, concordance is good.
5. low cost, be prone to make.
Accompanying drawing explanation
Fig. 1 is the capacitive coupling structure schematic front view of the present invention；
Fig. 2 is the capacitive coupling structure schematic top plan view of the present invention.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As depicted in figs. 1 and 2, a kind of capacitive coupling structure for metallic cavity wave filter product, this structure in
U-shaped or inverted U, including cross-brace medium and the coupling piece 3 that is arranged on cross-brace medium two ends, each
Offering the U-shaped hole 2 passed for metal debugging screw on coupling piece, the metal debugging screw on cover plate can be two
The U-shaped hole 2 of the coupling piece of side regulates, to realize the purpose of variable coupling electric capacity.
Described cross-brace medium is provided with the medium screw hole 1 passed for medium screw.Described medium spiral shell
Nail 1 is provided with one, arranges the center of cross-brace medium.Described cross-brace medium is provided with symmetry
The U-shaped groove arranged.
The capacitive coupling structure of metal filter product, the adjustable coupling screw of U-shaped hole 2 avoids contact with coupling piece originally
Body, can add an insulated sleeve on screw under the conditions of some, it is to avoid short circuit and increase power capacity.
Embodiment 2
Described medium screw hole 1 is provided with multiple, in laterally or longitudinally arranging.Remaining is with embodiment 1.
Claims (7)
1. the capacitive coupling structure for metallic cavity wave filter product, it is characterised in that this structure is U
Type or inverted U, including cross-brace medium and the coupling piece that is arranged on cross-brace medium two ends, each coupling
Close and on sheet, offer the U-shaped hole passed for metal debugging screw.
A kind of capacitive coupling structure for metallic cavity wave filter product the most according to claim 1, its
Being characterised by, described cross-brace medium is provided with the medium screw hole passed for medium screw.
A kind of capacitive coupling structure for metallic cavity wave filter product the most according to claim 2, its
Being characterised by, described medium screw hole is provided with one, arranges the center of cross-brace medium.
A kind of capacitive coupling structure for metallic cavity wave filter product the most according to claim 2, its
Being characterised by, described medium screw hole is provided with multiple, in laterally or longitudinally arranging.
A kind of capacitive coupling structure for metallic cavity wave filter product the most according to claim 1 and 2,
It is characterized in that, described cross-brace medium is provided with symmetrically arranged U-shaped groove.
A kind of capacitive coupling structure for metallic cavity wave filter product the most according to claim 1, its
Being characterised by, described metal debugging screw is provided with insulated sleeve.
A kind of capacitive coupling structure for metallic cavity wave filter product the most according to claim 1, its
Being characterised by, this capacitive coupling structure is used for metallic cavity resonator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278661.5A CN106299562A (en) | 2015-05-27 | 2015-05-27 | A kind of capacitive coupling structure for metallic cavity wave filter product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278661.5A CN106299562A (en) | 2015-05-27 | 2015-05-27 | A kind of capacitive coupling structure for metallic cavity wave filter product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106299562A true CN106299562A (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510278661.5A Pending CN106299562A (en) | 2015-05-27 | 2015-05-27 | A kind of capacitive coupling structure for metallic cavity wave filter product |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317073A (en) * | 2017-06-23 | 2017-11-03 | 电子科技大学 | A kind of wave filter based on additional electric coupling circuit/combiner power capacity lift technique |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11213776A (en) * | 1998-01-29 | 1999-08-06 | Totoku Electric Co Ltd | Thin coaxial cable |
| CN2609200Y (en) * | 2003-03-03 | 2004-03-31 | 奥雷通讯设备(上海)有限公司 | Coaxial cavity resonator compatibility coupled structure |
| CN102361117A (en) * | 2011-09-29 | 2012-02-22 | 武汉虹信通信技术有限责任公司 | Capacitive cross coupling flying bar and coaxial cavity resonator thereof |
| CN202259618U (en) * | 2011-10-17 | 2012-05-30 | 武汉凡谷电子技术股份有限公司 | Adjustable capacitive cross coupling device |
| CN102881964A (en) * | 2011-07-15 | 2013-01-16 | 凯镭思通讯设备（上海）有限公司 | Capacitive coupling device for waveguide filter |
| CN204732505U (en) * | 2015-05-27 | 2015-10-28 | 凯镭思通讯设备（上海）有限公司 | For the capacitive coupling structure of metallic cavity filter product |
-
2015
- 2015-05-27 CN CN201510278661.5A patent/CN106299562A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11213776A (en) * | 1998-01-29 | 1999-08-06 | Totoku Electric Co Ltd | Thin coaxial cable |
| CN2609200Y (en) * | 2003-03-03 | 2004-03-31 | 奥雷通讯设备(上海)有限公司 | Coaxial cavity resonator compatibility coupled structure |
| CN102881964A (en) * | 2011-07-15 | 2013-01-16 | 凯镭思通讯设备（上海）有限公司 | Capacitive coupling device for waveguide filter |
| CN102361117A (en) * | 2011-09-29 | 2012-02-22 | 武汉虹信通信技术有限责任公司 | Capacitive cross coupling flying bar and coaxial cavity resonator thereof |
| CN202259618U (en) * | 2011-10-17 | 2012-05-30 | 武汉凡谷电子技术股份有限公司 | Adjustable capacitive cross coupling device |
| CN204732505U (en) * | 2015-05-27 | 2015-10-28 | 凯镭思通讯设备（上海）有限公司 | For the capacitive coupling structure of metallic cavity filter product |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317073A (en) * | 2017-06-23 | 2017-11-03 | 电子科技大学 | A kind of wave filter based on additional electric coupling circuit/combiner power capacity lift technique |
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Application publication date: 20170104 |
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