CN105392349A - Anechoic chamber shielding gate capable of improving standing wave characteristic - Google Patents
Anechoic chamber shielding gate capable of improving standing wave characteristic Download PDFInfo
- Publication number
- CN105392349A CN105392349A CN201510744874.2A CN201510744874A CN105392349A CN 105392349 A CN105392349 A CN 105392349A CN 201510744874 A CN201510744874 A CN 201510744874A CN 105392349 A CN105392349 A CN 105392349A
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- China
- Prior art keywords
- anechoic chamber
- shielding gate
- shield door
- standing wave
- site
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- 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.)
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0001—Rooms or chambers
- H05K9/0005—Shielded windows
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention provides an anechoic chamber shielding gate capable of improving a standing wave characteristic. The shielding gate comprising a shielding gate body and a shielding gate frame is characterized in that a gate handle made of a non-conductive material is arranged on the shielding gate body. According to the invention, the handle of the anechoic chamber shielding gate is made of the non-metallic material like a wood material and has high hardness and thus can replace the metallic material to realize a moment effect; and the capability of shielding an external signal is not affected, so that the site voltage standing wave ratio testing result is not affected.
Description
Technical field
The present invention relates to a kind of method improving anechoic chamber shield door stationary wave characteristic.
Background technology
Anechoic chamber shield door is that product carries out radiation and the requisite access way of radioresistance in anechoic chamber, shield door has turnover two door handles, make the convenient turnover of personnel, but in order to prevent extraneous unwanted electromagnetic wave from entering into anechoic chamber, the authenticity of impact test, therefore uses metallic shield door to be indispensable.Anechoic chamber needs to verify place performance, and wherein site VSWR is exactly one that needs test, and site VSWR test request at least lays absorbing material in principal reflection district, meets standard-required to make test result.
Anechoic chamber shield door is because of only needing the effect providing shield electromagnetic signals in anechoic chamber application, and to be therefore shield door or door handle be all employing metal material, reveals to prevent electromagnetic signal.
Anechoic chamber according to newest standards as tested when the product radiation test of more than 1GHz, site VSWR test need be carried out, test result meets standard can carry out product test, therefore anechoic chamber need lay absorbing material in test principal reflection district, metallic shield door also needs to lay absorbing material, but, a lot of manufacturer reality test in find anechoic chamber normalization site attenuation by, and site VSWR test result is defective, prior art fails to disclose the reason causing this phenomenon always.
Summary of the invention
The object of this invention is to provide a kind of anechoic chamber shield door that can improve stationary wave characteristic.
In order to achieve the above object, present invention employs following technical scheme:
A kind of anechoic chamber shield door, comprises shield door body and shielding doorframe, it is characterized in that, more than described shield door body be provided with the door handle of non-conductive material.
Preferably, described non-conductive material is wood quality.
Due to before when testing another index normalization site attenuation of anechoic chamber, whether door handle is that metal pair test data is without impact, infer thus and also impact is not had to the test result of site VSWR, generally believe in prior art and think that darkroom interior metal door handle can not affect test, there is technology prejudice.
The present invention meets and the underproof problem of site VSWR result to solve anechoic chamber normalization field attenuation results under similarity condition, have employed with people when absorber mode is rectified and improved, finally find to have greatly improved in door handle position test data, door handle is taken away rear test and qualified, once metallic shield door is closed, personnel inside darkroom are when cannot go out without when door handle, for this reason, only the metal material of door handle need be replaced with nonconducting material, as being replaced with wood quality, through overtesting, site VSWR result meets standard-required.Described wooden door handle, reflection of electromagnetic wave is little, does not affect the site VSWR performance test data of anechoic chamber, and, in shield door, only play the effect of moment, do not affect the shielding properties test data of anechoic chamber.
Anechoic chamber shield door is not only the effect of passage in anechoic chamber, and electromagnetic interference signal useless for the external world is isolated in the outside of anechoic chamber by shield door, ensure that good shielding properties, ensure that the authenticity of data, anechoic chamber shield door door handle is as shield door on-off action simultaneously, after door handle is replaced with wood quality by metal material, door handle intensity can not be affected, and electromagnetic signal emitting is little.Optimize the test result of anechoic chamber site VSWR, make anechoic chamber can be used for the product radiation test of 1GHz.Improve the purposes of anechoic chamber.
Compared with prior art, advantage of the present invention is:
What 1, anechoic chamber shield door door handle adopted is non-metallic material, and as wood quality, hardness is high, substituted metal material can play moment loading, also not affect the ability of shielding outer signals.
What 2, anechoic chamber shield door door handle adopted is non-metallic material, and as wood quality, reflection of electromagnetic wave is little, does not affect electromagnetic wave transmission path, on site VSWR test result without impact.
Accompanying drawing explanation
Fig. 1 is anechoic chamber shield door structural representation.
Site VSWR test result when being metal material that Fig. 2 is anechoic chamber shield door door handle.
Site VSWR test result when being wood quality that Fig. 3 is anechoic chamber shield door door handle.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
As shown in Figure 1, be anechoic chamber shield door structural representation, described anechoic chamber shield door, comprises shield door body and shielding doorframe 1, more than described shield door body is provided with the door handle 2 of wood quality.During use, revolving door handle can complete opening of shield door and closed action.
As shown in Figure 2, be site VSWR test result when anechoic chamber shield door door handle is metal material.As shown in Figure 3, be site VSWR test result when anechoic chamber shield door door handle is wood quality.Testing procedure carries out according to national standard, and namely site VSWR meets site VSWR standard-required below 6.Contrasted from Fig. 2 and Fig. 3, after the handle of metal material being changed into the handle of wood quality, site VSWR standard-required can be met, realize the object of the invention.
Claims (2)
1. an anechoic chamber shield door, comprises shield door body and shielding doorframe (1), it is characterized in that, more than described shield door body be provided with the door handle (2) of non-conductive material.
2. anechoic chamber shield door as claimed in claim 1, it is characterized in that, described non-conductive material is wood quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510744874.2A CN105392349A (en) | 2015-11-05 | 2015-11-05 | Anechoic chamber shielding gate capable of improving standing wave characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510744874.2A CN105392349A (en) | 2015-11-05 | 2015-11-05 | Anechoic chamber shielding gate capable of improving standing wave characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105392349A true CN105392349A (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510744874.2A Pending CN105392349A (en) | 2015-11-05 | 2015-11-05 | Anechoic chamber shielding gate capable of improving standing wave characteristic |
Country Status (1)
| Country | Link |
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| CN (1) | CN105392349A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064576A (en) * | 2017-05-04 | 2017-08-18 | 中山香山微波科技有限公司 | Anechoic chamber, |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2806724Y (en) * | 2005-06-28 | 2006-08-16 | 常州市长城屏蔽机房设备有限公司 | Multifunctional electromagnetic shield door |
| CN1878458A (en) * | 2005-06-10 | 2006-12-13 | 株式会社日立高新技术 | Magnetic shielding apparatus and magnetic field measuring apparatus using same |
| CN201270642Y (en) * | 2008-07-17 | 2009-07-08 | 常州市长城屏蔽机房设备有限公司 | Assembly type shielding cabinet |
| CN204212507U (en) * | 2014-10-10 | 2015-03-18 | 西安嘉业航空科技有限公司 | Micro discharge shielded anechoic chamber |
| CN104635217A (en) * | 2015-02-15 | 2015-05-20 | 南京理工大学 | Echo-free isolation box for testing of millimeter wave alternating current radiometer |
| CN204631146U (en) * | 2015-04-07 | 2015-09-09 | 深圳市倍通检测股份有限公司 | A kind of dismountable anechoic chamber, |
-
2015
- 2015-11-05 CN CN201510744874.2A patent/CN105392349A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1878458A (en) * | 2005-06-10 | 2006-12-13 | 株式会社日立高新技术 | Magnetic shielding apparatus and magnetic field measuring apparatus using same |
| CN2806724Y (en) * | 2005-06-28 | 2006-08-16 | 常州市长城屏蔽机房设备有限公司 | Multifunctional electromagnetic shield door |
| CN201270642Y (en) * | 2008-07-17 | 2009-07-08 | 常州市长城屏蔽机房设备有限公司 | Assembly type shielding cabinet |
| CN204212507U (en) * | 2014-10-10 | 2015-03-18 | 西安嘉业航空科技有限公司 | Micro discharge shielded anechoic chamber |
| CN104635217A (en) * | 2015-02-15 | 2015-05-20 | 南京理工大学 | Echo-free isolation box for testing of millimeter wave alternating current radiometer |
| CN204631146U (en) * | 2015-04-07 | 2015-09-09 | 深圳市倍通检测股份有限公司 | A kind of dismountable anechoic chamber, |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064576A (en) * | 2017-05-04 | 2017-08-18 | 中山香山微波科技有限公司 | Anechoic chamber, |
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