CN102509961A - Radio-frequency cable interface device and shield method thereof - Google Patents
Radio-frequency cable interface device and shield method thereof Download PDFInfo
- Publication number
- CN102509961A CN102509961A CN2011103252049A CN201110325204A CN102509961A CN 102509961 A CN102509961 A CN 102509961A CN 2011103252049 A CN2011103252049 A CN 2011103252049A CN 201110325204 A CN201110325204 A CN 201110325204A CN 102509961 A CN102509961 A CN 102509961A
- Authority
- CN
- China
- Prior art keywords
- metal shell
- radio frequency
- frequency cable
- cable interface
- interface arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a radio-frequency cable interface device and a shield method thereof. The device comprises a first metal shell and a second metal shell which are matched with each other; and both the interior of the first metal shell and the interior of the second metal shell are provided with a layer of wave-absorbing material or radio-frequency signal absorbing material. By shielding the entire interface of the radio-frequency cable in the device, the source of signal leakage is shielded in a closed room. The radio-frequency cable interface device and the shield method thereof can protect a radio-frequency product against external signal interference in the testing process and at the same time prevents the leaked signals from affecting the test of the products around, the influence of microwave radiation in the environment is reduced, and the accuracy and the veracity of the test are effectively improved. The radio-frequency cable interface device is simple in design, convenient in usage and low in cost.
Description
Technical field
The present invention relates to the technical field of radio frequency cable, particularly radio frequency cable interface arrangement and screen method thereof.
Background technology
Radio frequency products is always relatively more responsive for external interference, and especially in test, measuring process, extraneous interference will have a strong impact on test result.Particularly in large-scale production, product wire loop border will produce serious influence for the interference of radio frequency products.
At present, all be the transmission of carrying out signal through radio frequency cable aborning, radio frequency cable is connected emission source and reception sources, avoid signal to transmit in the space.The radio frequency cable that uses is a coaxial radio frequency cable, and inner wire and outer conductor are in concentric position, and electromagnetic energy is confined to propagate in the medium between the internal and external conductor, therefore have decay little, the advantage that shielding properties is high.But; The connector of radio frequency cable all is to use sub-miniature A connector, and connected mode is for being threaded, in signals transmission; High-frequency signal produces through connector easily and leaks; Perhaps outer signals is coupled into through connector, produces electromagnetic interference, influences product selftest result and peripheral product test result's accuracy.
Summary of the invention
The shortcoming that the objective of the invention is to overcome prior art provides a kind of radio frequency cable interface arrangement with not enough, realizes the radio frequency cable interface is shielded, and reduces the test of radio frequency Related product is disturbed.
Another object of the present invention is to, a kind of screen method of radio frequency cable interface arrangement is provided.
In order to achieve the above object, the present invention adopts following technical scheme:
The radio frequency cable interface arrangement; It is characterized in that; Comprise first metal shell and second metal shell; Said first metal shell and second metal shell mate each other, all scribble the material that one deck absorbing material perhaps absorbs radiofrequency signal in the inside of first metal shell and the inside of second metal shell.
Preferably, the outer surface after said first metal shell and second metal shell fasten forms double symmetrical structure circular or type rectangle.
Preferably, said first metal shell and second metal shell adopt hinge to be connected perhaps hinged mode links together.
Preferably, the both sides of said first metal shell and the other one edge mouth of second metal shell are provided with a snap close reed and a snap close round dot respectively.
Preferably, said snap close reed is provided with a circular hole, and said circular hole and said snap close round dot are complementary.
Preferably, two-port scribbles the material that one deck absorbing material perhaps absorbs radiofrequency signal.
Preferably, said port shape is according to the shape set of cable.
In order to reach above-mentioned another purpose, the present invention adopts following technical scheme: the screen method based on the radio frequency interface device comprises the steps:
(1) will need the link of transmitting radio frequency signal to install through radio frequency cable;
(2) interface is installed this screening arrangement at the two ends of radio frequency cable, and the port direction of device is closed sleeve tightly after installing by actual conditions operations, and with the fastening of snap close reed on the snap close round dot, form a cavity;
(3) the whole interface of radio frequency cable is all shielded in device, source point that so just can leakage signal shields in the space of a sealing.
The present invention has following advantage and effect with respect to prior art:
1, radio frequency cable interface arrangement of the present invention and screen method thereof can avoid radio frequency products in test process, to receive interference from outside signals.
2, the present invention simultaneously can prevent that also leakage signal from influencing the test of peripheral product, and the influence of microwave radiation in the degradation environment effectively improves the accuracy and the accuracy of test result.
3, simplicity of design of the present invention is easy to use, and is with low cost.
Description of drawings
Fig. 1 is the overall structure figure of radio frequency cable interface arrangement of the present invention;
Fig. 2 is the internal structural map of radio frequency cable interface arrangement of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but execution mode of the present invention is not limited thereto.
Embodiment
As depicted in figs. 1 and 2; This instance radio frequency cable interface arrangement; Comprise first metal shell 1 and second metal shell 2; Said first metal shell 1 and second metal shell 2 mate each other, all scribble one deck absorbing material or absorb the material of radiofrequency signal at the inner surface 8 of first metal shell 1 and second metal shell 2.When first metal shell 1 and second metal shell 2 fastened, the shape of its outer surface can be the double symmetrical structure of circle, rectangle or type rectangle.
As shown in Figure 2, the one edge mouth of said first metal shell 1 and second metal shell 2 is provided with two rotating shaft sheets 3, makes metal shell freely open or fasten, and the edge mouth can not leave the slit during fastening, otherwise can influence the performance of shielding.First metal shell 1 is connected hinged mode with second metal shell 2 through hinge and links together here.
The both sides of one edge mouth are provided with a snap close reed 4 and a snap close round dot 5 respectively in addition, and snap close reed 4 is provided with a circular hole 6, and said circular hole 6 just can be fastened on the snap close round dot, and first metal shell 1 and second metal shell 2 are fixed together.
Port 7 at radio-frequency unit also scribbles the material that one deck absorbing material perhaps absorbs radiofrequency signal; Port 7 can be arranged to different shapes according to the needs of actual conditions; Can be arranged to shapes such as circle, rectangle or ellipse; But also must be noted that sealing simultaneously, so effectively the shielded radio frequency signal.
The screen method of present embodiment radio frequency interface device comprises the steps:
(1) link with transmitting radio frequency signal installs through radio frequency cable;
(2) interface is installed the radio frequency cable interface arrangement at the two ends of radio frequency cable, and the port direction of device is closed sleeve tightly after installing by actual conditions operations, and with the fastening of snap close reed on the snap close round dot, form a cavity;
(3) the whole interface with radio frequency cable all shields in device, so just can the source point of leakage signal be shielded in the space of a sealing.
For example in the outdoor unit in digital microwave transmission system (ODU) test; The signal of radio frequency products output connects tester through the SMA interface, before this device is not installed; SMA tie point place can measure and the identical radiofrequency signal of ODU emission frequency; Carry out signal testing again after the radio frequency cable interface arrangement is installed, the signal that measures before measuring radiofrequency signal this moment and improving compares, and improving effect can reach about 30dBm.
The foregoing description is a preferred implementation of the present invention; But execution mode of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. radio frequency cable interface arrangement; It is characterized in that; Comprise first metal shell and second metal shell; Said first metal shell and second metal shell mate each other, and the inside of the inside of said first metal shell and second metal shell all scribbles one deck absorbing material or absorbs the material of radiofrequency signal.
2. radio frequency cable interface arrangement according to claim 1 is characterized in that, the outer surface after said first metal shell and second metal shell fasten forms double symmetrical structure circular or type rectangle.
3. radio frequency cable interface arrangement according to claim 1 is characterized in that, said first metal shell adopts hinge to be connected with second metal shell or hinged mode links together.
4. radio frequency cable interface arrangement according to claim 1 is characterized in that, the both sides of said first metal shell and the other one edge mouth of second metal shell are provided with a snap close reed and a snap close round dot respectively.
5. radio frequency cable interface arrangement according to claim 4 is characterized in that, said snap close reed is provided with a circular hole, and said circular hole and said snap close round dot are complementary.
6. radio frequency cable interface arrangement according to claim 1 is characterized in that, two-port scribbles one deck absorbing material or absorbs the material of radiofrequency signal.
7. radio frequency cable interface arrangement according to claim 1 is characterized in that said port shape is according to the shape set of cable.
8. according to the screen method of each said radio frequency interface device among the claim 1-5, it is characterized in that, comprise the steps:
(1) will need the link of transmitting radio frequency signal to install through radio frequency cable;
(2) interface is installed above-mentioned radio frequency cable interface arrangement at the two ends of radio frequency cable, and the port direction of device is closed sleeve tightly after installing by actual conditions operations, and with the fastening of snap close reed on the snap close round dot, form a cavity;
(3) the whole interface of radio frequency cable is all shielded in device, with the source point shielding of leakage signal in the space of a sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103252049A CN102509961A (en) | 2011-10-24 | 2011-10-24 | Radio-frequency cable interface device and shield method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103252049A CN102509961A (en) | 2011-10-24 | 2011-10-24 | Radio-frequency cable interface device and shield method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102509961A true CN102509961A (en) | 2012-06-20 |
Family
ID=46222023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103252049A Pending CN102509961A (en) | 2011-10-24 | 2011-10-24 | Radio-frequency cable interface device and shield method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102509961A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680248A (en) * | 2016-03-25 | 2016-06-15 | 冠捷显示科技（中国）有限公司 | Shielding structure of data interface terminal and application of shielding structure |
| CN106792325A (en) * | 2017-03-03 | 2017-05-31 | 苏州市力发电子有限公司 | A kind of fixture and the earphone cord with the fixture |
| CN111122948A (en) * | 2020-01-15 | 2020-05-08 | 中北大学 | Tunnel magnetic resistance and Rogowski coil combined totally-enclosed current testing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786923Y (en) * | 2005-03-25 | 2006-06-07 | 钧宝电子工业股份有限公司 | Iron core box used to restrain electromagnetic wave interference |
| CN2877211Y (en) * | 2006-02-07 | 2007-03-07 | 天津市金穗科贸有限公司 | Antistatic screening test box |
| CN201039659Y (en) * | 2007-03-26 | 2008-03-19 | 纬创资通股份有限公司 | Shielding device preventing from electromagnetic wave interference and its combination with electronic device shell of circuit board |
| CN101340806A (en) * | 2007-07-06 | 2009-01-07 | 莱尔德电子材料（上海）有限公司 | Screening arrangement and method for producing the same |
| CN101593565A (en) * | 2009-07-03 | 2009-12-02 | 北京邮电大学 | The portable electromagnetic shielding box that is used for testing weak signals of mobile terminal |
-
2011
- 2011-10-24 CN CN2011103252049A patent/CN102509961A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786923Y (en) * | 2005-03-25 | 2006-06-07 | 钧宝电子工业股份有限公司 | Iron core box used to restrain electromagnetic wave interference |
| CN2877211Y (en) * | 2006-02-07 | 2007-03-07 | 天津市金穗科贸有限公司 | Antistatic screening test box |
| CN201039659Y (en) * | 2007-03-26 | 2008-03-19 | 纬创资通股份有限公司 | Shielding device preventing from electromagnetic wave interference and its combination with electronic device shell of circuit board |
| CN101340806A (en) * | 2007-07-06 | 2009-01-07 | 莱尔德电子材料（上海）有限公司 | Screening arrangement and method for producing the same |
| CN101593565A (en) * | 2009-07-03 | 2009-12-02 | 北京邮电大学 | The portable electromagnetic shielding box that is used for testing weak signals of mobile terminal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680248A (en) * | 2016-03-25 | 2016-06-15 | 冠捷显示科技（中国）有限公司 | Shielding structure of data interface terminal and application of shielding structure |
| CN106792325A (en) * | 2017-03-03 | 2017-05-31 | 苏州市力发电子有限公司 | A kind of fixture and the earphone cord with the fixture |
| CN106792325B (en) * | 2017-03-03 | 2023-08-18 | 苏州市力发电子有限公司 | Fixing piece and earphone wire with same |
| CN111122948A (en) * | 2020-01-15 | 2020-05-08 | 中北大学 | Tunnel magnetic resistance and Rogowski coil combined totally-enclosed current testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110190914B (en) | Shielding device for testing anti-interference satellite receiver of aircraft | |
| CN201464580U (en) | Wireless terminal electromagnetic compatibility testing device | |
| CN102944780A (en) | Testing method for shielding effectiveness of small-size shielding cavity | |
| CN108023646A (en) | Antenna performance detecting system for intelligence instrument | |
| CN103323682B (en) | A kind of high high radiation field test macro of low level scanning field and method of testing thereof | |
| CN1710434A (en) | Electromagnetic detector for electromagnetic compatible diagnostic test in vehicle | |
| CN105116249A (en) | Broadband shielding effectiveness test device of small shielding chassis and method | |
| CN102509961A (en) | Radio-frequency cable interface device and shield method thereof | |
| CN105954601A (en) | Antenna coupling testing device, system, and method | |
| CN109752606A (en) | A kind of three coaxial test macros of radio frequency (RF) coaxial connector | |
| CN207926604U (en) | Antenna performance detecting system for intelligence instrument | |
| CN209198570U (en) | A kind of test device of new-energy automobile high-tension cable shield effectiveness | |
| CN202916362U (en) | Device for testing the shielding effectiveness of small shielding cavity | |
| CN105162929A (en) | Test system and test device used by the same | |
| CN108205082B (en) | Device and method for testing shielding effectiveness of coaxial cable connector | |
| CN101740850A (en) | High-gain broadband antenna based on the impedance matching principle and design method thereof | |
| CN102944779A (en) | Shielding effectiveness test method of filtering and shielding integrated assembly | |
| CN102955086A (en) | Method for testing shielding effectiveness of waveguide transfer switch | |
| CN204649905U (en) | Based on the superfrequency sensor of metal disc insulator perforate | |
| CN206671428U (en) | A kind of micro-wave screening takes shield effectiveness test system | |
| CN205786872U (en) | For measuring the electromagnetic pulse diagnostic equipment of high power large-scale laser | |
| CN103675501A (en) | Wireless transmission waveguide test device | |
| CN114325154A (en) | X-waveband high-power microwave signal processing device and system | |
| CN203616397U (en) | Radio frequency test system | |
| Guo et al. | Simulation and Analysis of the Influence of External Cables on the Electromagnetic Radiation of the Electronic Equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120620 |