CN102882613A - Full anechoic darkroom - Google Patents
Full anechoic darkroom Download PDFInfo
- Publication number
- CN102882613A CN102882613A CN2011102050196A CN201110205019A CN102882613A CN 102882613 A CN102882613 A CN 102882613A CN 2011102050196 A CN2011102050196 A CN 2011102050196A CN 201110205019 A CN201110205019 A CN 201110205019A CN 102882613 A CN102882613 A CN 102882613A
- Authority
- CN
- China
- Prior art keywords
- antenna holder
- test
- anechoic chamber
- pipeline
- antenna
- 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 provides a full anechoic darkroom comprising a test room, a test rotary table and an antenna frame device. The test room comprises an outer wall provided with a hole; the test rotary table is arranged in the test room; the antenna frame device comprises an antenna frame, a pipe and a driving device; the interior of the pipe is used for arranging the antenna frame, and one end of the pipe is communicated with the test room; and the driving device is connected to the antenna frame and used for controlling the antenna frame to enter into and exit from the pipe and controlling the test rotary table. The invention has the advantages that the antennal frame is not required to be manually moved, the height of the antennal frame can be fixed, the driving device can control the antenna frame to enter into and exit from the pipe, and errors caused by manual operation is avoided.
Description
Technical field
The invention relates to a kind of anechoic chamber, in particular to a kind of fully anechoic chamber.
Background technology
In order to detect the ability of throughput of wireless network card, must carry out to wireless network card the test of throughput.The wireless network card data transfer is divided into transmission (Tx) and receives (Rx) two parts, and transmission, reception and data transfer rate, bandwidth have relation.802.11 modal in the host-host protocol is 802.11a/b/g, 802.11n then provides higher transfer rate.802.11a high-speed radio LAN (WLAN) agreement is used 5GHz frequency range (Frequency Band), high transmission rates is 54Mbps, 802.11b/g use the 2.4GHz frequency range, 802.11b highest order is the transfer rate of 11Mbps, the highest transfer rate that can reach 54Mbps of 802.11g.When carrying out the testing throughput of high transmission rates more, can reach higher transfer rate by setting up three antennas.So when carrying out testing under the different frequency range, select different test antennas, at many antennas of the next use of high transmission rates more.
In order to prevent the interference of outer signals noise, need under glitch-free environment, carry out the test of throughput of wireless network card, usually select fully anechoic chamber to test.Testing throughput General Requirements equipment under test (Equipment Under Test, EUT) and antenna are in identical height and relative position and can be approximately 1 meter and be example.In present fully anechoic chamber, antenna can reach in the situation of requirement transfer rate and carry out testing throughput, the setting up as described in following of this relative position.
At first, turn the about 1 meter position of table at distance test, the ground suction ripple thing of moving away, the space of the antenna holder of placing testing throughput is provided, then measure position with the equipment under test equal height at antenna holder, antenna is fixed on this position, then connect antenna and wall keyset by cable (Cable), at fully anechoic chamber external application cable, carry out outer the setting up and operate of fully anechoic chamber by the wall keyset.
During the testing throughput of the WLAN under carrying out high transmission rates situation more, need three antennas, sequentially erect a television antenna on known antenna holder, decorating position faces equipment under test for middle antenna, relative distance can be approximately 1 meter and is example, be on the same height with equipment under test, the antenna of both sides and middle being on the same level line, the length of the middle antenna of distance all is about 15 centimetres.
The erection method of known antenna holder has following shortcoming:
1, in order to erect a television antenna, need mobile ground to inhale the ripple thing, with the space that provides the console mode antenna holder to place, can destroy like this uniformity of fully anechoic chamber.
2, carry out testing throughput at every turn, need that all antenna holder is moved into fully anechoic chamber and carry out antenna installation, again antenna holder is taken out of fully anechoic chamber after test is finished, to allow fully anechoic chamber carry out the test of other project, can spend many unnecessary times, affect testing efficiency.
3, in fully anechoic chamber, same console mode antenna holder can be as the support of difference test, the height that different tests need is not necessarily identical, so that before carrying out testing throughput, all to do measurement to the height and position that antenna holder supports, put in fully anechoic chamber ground location with antenna holder and do measurement, the tester operates and might make a fault when adjusting, and makes test reading inaccurate.
Summary of the invention
The objective of the invention is the problem for aforementioned prior art, a kind of fully anechoic chamber is provided.
Therefore, the invention provides a kind of fully anechoic chamber, it comprises a test cabinet, a test turns table, a kind of antenna holder device.Test cabinet comprises an exterior wall, and this exterior wall has a hole.Test turns table and is arranged in the test cabinet.The antenna holder device comprises antenna holder, pipeline and drive unit.The inside of pipeline is that one end of pipeline is communicated with test cabinet for the antenna holder setting.Drive unit is connected in antenna holder, makes the antenna holder inlet and outlet piping in order to control, and the control test turns table.
Preferably, the height of its Hole is identical with the height that test turns table, and the described end of pipeline is communicated with test cabinet by hole, is controlled by drive unit, and antenna holder passes in and out test cabinet by hole.
Preferably, the antenna holder device more comprises support.Support is arranged at exterior wall, is combined with the described end of pipeline, in order to supporting pipeline.
Preferably, antenna holder has gear wheel line.Drive unit comprises gear and runner.Gear is arranged on the support, with the engagement of gear wheel line.Runner is arranged in the pipeline, connects gear.This drive unit more comprises fibre circuit and controller.Fibre circuit connects runner, and then, controller connects fibre circuit, make the antenna holder inlet and outlet piping in order to control the runner rotation, and simultaneously control test turns table.
Preferably, antenna holder is cylindric antenna holder.
Preferably, pipeline is the cylindrical hollow pipeline.
Preferably, antenna holder is solid steel pole.
Preferably, comprise at least one suction ripple thing in the test cabinet.
Preferably, the other end of pipeline is supported by a thecal structure.
Comprehensively above-mentioned, the present invention possesses does not need artificial portable antenna frame, and the height of antenna holder can be fixed, and can pass through drive unit control antenna frame inlet and outlet piping, the plurality of advantages such as error of avoiding manual operation to produce.
Below will do detailed description to above-mentioned explanation with execution mode, and the technical scheme of disclosure provides further explanation.
Description of drawings
For above and other purpose of the present invention, feature, advantage and embodiment can be become apparent, being described as follows of institute's accompanying drawing:
Figure 1A is the exterior frontal view according to a kind of fully anechoic chamber of one embodiment of the invention.
Figure 1B is the inside vertical view of a kind of fully anechoic chamber of one embodiment of the invention.
Fig. 2 is the schematic diagram of the antenna holder of Fig. 1.
Fig. 3 is the schematic diagram of the drive unit of Fig. 1.
Fig. 4 is the vertical view of a kind of fully anechoic chamber of one embodiment of the invention.
Fig. 5 is the schematic diagram that the antenna holder that illustrates Fig. 4 is recovered to ferritic surface.
[primary clustering symbol description]
100: fully anechoic chamber 102: the antenna holder device
110: antenna holder 112: gear wheel line
120: pipeline 130: drive unit
132: gear 134: runner
136: fibre circuit 138: controller
140: support 200: test cabinet
210: exterior wall 220: hole
230: antenna 232: antenna
234: antenna 240: equipment under test
250: test turns table 260: inhale the ripple thing
400: thecal structure 410: wall
500: inhale the ripple thing
Embodiment
Below will and describe in detail come clear explaination embodiments of the present invention with accompanying drawing, the identical same or analogous assembly of digitized representation in the accompanying drawing.On the other hand, well-known assembly and step are not described among the embodiment, to avoid that the present invention is caused unnecessary restriction.
Please be simultaneously with reference to Figure 1A and Figure 1B, Figure 1A is the exterior frontal view according to a kind of fully anechoic chamber 100 of one embodiment of the invention, Figure 1B is the inside vertical view of a kind of fully anechoic chamber 100 of one embodiment of the invention.
Fully anechoic chamber 100 comprises test cabinet 200, test turns table 250, antenna holder device 102.Test cabinet 200 has an exterior wall 210, and exterior wall 210 has a hole 220, in the outside of test cabinet 200.Test turns table 250 and is arranged in the test cabinet 200.Antenna holder device 102 comprises antenna holder 110, pipeline 120 and drive unit 130.The inside of pipeline 120 is used for antenna holder 110 and is arranged, and an end of pipeline 120 is communicated with test cabinet 200, and drive unit 130 is connected in antenna holder 110, makes antenna holder 110 inlet and outlet pipings 120 in order to control, and the control test turns table 250.That is to say, by drive unit 130, can control antenna holder 110 inlet and outlet pipings 120, need not like this operating personnel and carry out moving of antenna holder, to avoid the error of people as causing.
In one embodiment, the height of hole 220 is identical with the height that test turns table 250, and an end of pipeline 120 is communicated with test cabinet 200 by hole 220.In addition, by the control of drive unit 130, antenna holder 110 can be by hole 220 turnover test cabinets 200.
For instance, when carrying out testing throughput, antenna 230 is set up on the antenna holder 110, equipment under test (Equipment Under Test, EUT) 240 be positioned over the center that test turns table 250, if equipment under test 240 must can be 1 meter approximately with the relative position of antenna 230, but drive unit 130 operational antennas framves 110 turnover test cabinets 200, therefore see through drive unit 130, can make antenna holder 110 enter test cabinet 200 until equipment under test 240 distance about 1 meter with antenna 230 maintenances.From the above, when testing, by the relative position of drive unit 130 control antennas 230 with equipment under test 240, to replace the suction ripple thing 260 on the artificial mobile ground, similarly avoid human error.
When the height of device antenna holder 110, because turning table 250 height apart from ground, test can be approximately 1.8 meters, must make the height of antenna holder 110 corresponding to equipment under test 240, so but the height of fixed antenna frame 110 can be 1.8 meters approximately.The antenna holder height can be fixed, and when test, just need not to consider setting up of antenna holder height.
Then please refer to Fig. 2, Fig. 2 is the schematic diagram of the antenna holder 110 of Fig. 1, antenna holder 110 is to do specific design according to the same or analogous size of test cabinet 200 (being illustrated in Figure 1A), and in the present embodiment, the Design of length of antenna holder 110 is about 3 meters, diameter design and is about 3 centimetres.For instance, the shape of antenna holder 110 can be cylindric antenna holder; Perhaps antenna holder 110 can be solid steel pole.The surface of antenna holder 110 has gear wheel line 112, and Fig. 3 will explain for this.
Please refer to Fig. 3, Fig. 3 is the schematic diagram of the drive unit 130 of Fig. 1.Drive unit 130 can more comprise gear 132 and runner 134.Gear 132 is arranged on the support 140 and (is illustrated in Fig. 1), with gear wheel line 112 (the being illustrated in Fig. 2) engagement of antenna holder 110.Runner 134 is arranged in the pipeline 120 (being illustrated in Fig. 1), is connected in gear 132.Design is in order to make the antenna holder 110 can inlet and outlet piping 120 like this.
For example, gear 132 on the support 140 drives the inlet and outlet piping 120 (being illustrated in Fig. 1) of antenna holder 110, to be arranged in pairs or groups mutually with runner 134 by gear 132, utilize runner 134 rotation driven gears 132, gear 132 sees through friction and drives antenna holder 110, thereby makes the antenna holder 110 can inlet and outlet piping 120.
According to an embodiment, drive unit 130 can more comprise fibre circuit 136 and controller 138.Fibre circuit 136 is connected in runner 134, and controller 138 is connected in fibre circuit 136, see through the sending and receiving of fibre circuit 136, so that controller 138 is controlled the rotation of runner 134, make runner 134 rotation driven gears 132,132 of gears see through with 112 engagements of gear wheel line and drive antenna holder 110.
Please refer to Fig. 4, Fig. 4 is the vertical view of a kind of fully anechoic chamber 100 of one embodiment of the invention.Antenna holder device 102 can more comprise support 140, for example can be installed on the exterior wall 210 of test cabinet 200, and support 140 can be A-frame.Support 140 is combined with an end of pipeline 120, and in order to supporting pipeline 120, an end of pipeline 120 refers to that end of antenna holder 110 inlet and outlet pipings 120.The other end of pipeline 120 is connected in thecal structure 400, and is supported by thecal structure 400.Wherein thecal structure 400 can be wall, but is not limited to this.
According to an embodiment, pipeline 120 can be the cylindrical hollow pipeline, so is not limited to this.The length of pipeline 120 is the length according to antenna holder 110, and for example: the length of antenna holder 110 is about 3 meters, diameter and is about 3 centimetres, connects outside test cabinet 200 then that to be about be the pipeline 120 of 4 centimetres of 3 meters, diameter.
Please referring again to Fig. 4, about a kind of fully anechoic chamber 100 of the present invention, the test operating procedure of carrying out throughput is as follows.Because after the laboratory is constructed, test turns the position of table 250 for immobilizing, general test is that equipment under test 240 is put in the center that test turns table 250, then must adjust antenna holder 110 and turn table 250 on the position of equal height with test, equipment under test 240 is about 1 meter to the vertical line distance of antenna holder 110.During test, only antenna 230 need to be set up on the antenna holder 110.
Control by controller 138, fibre circuit 136 communicates commands to the rotation that runner 134 makes, thereby the gear 132 that drives on the support 140 rotates, and antenna 230 is delivered in the position of the subpoint of equipment under test 240 to the antenna holder 110 in the turnover of gear 132 control antenna framves 110.
For instance, the distance of equipment under test 240 centre distance walls 410 is about 2 meters, when carrying out antenna 230 test, antenna 230 can be set up in the front end of antenna holder 110, controller transmits the length that antenna holder 110 enters test cabinet 200 and is about 2 meters, makes antenna 230 be in the position of the subpoint of equipment under test 240 to the antenna holder 110.When the test of three antennas that carry out antenna 230, antenna 232, antenna 234, can erect a television antenna 230 at antenna holder 110 front ends, then be separated by about 15 centimetres and erect a television antenna 232, about 30 centimetres position that is separated by erects a television antenna 234, controller 138 control antenna framves 110 distance that enters test cabinet 200 is set and to be about 215 centimetres like this, just can satisfy the requirement of three antenna installations.
In addition, carry out after testing throughput finishes, antenna 230, antenna 232, antenna 234 can be taken off, by controller 138 controls, setting distance that antenna holder 110 leaves test cabinet 200 is about 0 centimetre～50 centimetres and all can, antenna holder 110 just can leave test cabinet 200 like this, and is recovered in the pipeline 120.
Please refer to Fig. 5, Fig. 5 is the schematic diagram that the antenna holder 110 that illustrates Fig. 4 is recovered to ferritic surface, antenna holder 110 front ends are in to be inhaled in the ripple thing 500, in one embodiment, it is 56 centimetres that suction ripple thing 500 is about, and the downside of suction ripple thing 500 is ferrite, when antenna holder distance test chambers 200 110 are about 0 centimetre, antenna holder 110 is recovered to ferritic surface, shielding that just can the breaking test chamber.
Comprehensively above-mentioned, use a kind of fully anechoic chamber of the present invention and can reach following beneficial effect:
1, fully anechoic chamber of the present invention, need not the ground suction ripple thing of mobile fully anechoic chamber, just can provide equipment under test and test antenna testing desired relative position, solve the console mode antenna holder and need to move ground suction ripple thing and destroy the inhomogeneity drawback in place.
2, when carrying out the test of antenna, need not operating personnel carries out moving into of antenna holder and takes out of fully anechoic chamber, only need the control controller, just can satisfy test request, in addition after test is finished, controller can take in antenna holder in the pipeline that designs, and can not affect the carrying out of other project testing.Solved and carried out antenna measurement at every turn, all need antenna holder is moved into fully anechoic chamber and carried out setting up of antenna holder, after test is finished, also need antenna holder is taken out of fully anechoic chamber, to allow fully anechoic chamber carry out the test of sundry item, show off so back and forth the antenna holder expensive unnecessary time of meeting, affect the problem of testing efficiency.
3, the height of the antenna holder of antenna holder device can be fixed, so that when test need not to consider setting up of antenna height, and the fixing of the relative position of antenna and equipment under test can operate by controller, need not the measurement that operating personnel carry out the antenna holder position, and antenna holder puts the measurement of ground location in the fully anechoic chamber, avoids the tester to measure the operation inaccurate drawback of institute's test reading that brings of making a fault.
Above, describe the specific embodiment of the present invention with reference to the accompanying drawings.But those skilled in the art can understand, and in situation without departing from the spirit and scope of the present invention, can also do various changes and replacement to the specific embodiment of the present invention.These changes and replacement all drop in claims limited range of the present invention.
Claims (10)
1. a fully anechoic chamber is characterized in that, described fully anechoic chamber comprises:
One test cabinet, it comprises:
One exterior wall has a hole;
One test turns table, is arranged in the described test cabinet; And
A kind of antenna holder device, it comprises:
One antenna holder;
One pipeline, it is inner for described antenna holder setting, and an end of described pipeline is communicated with described test cabinet; And
One drive unit connects described antenna holder, makes described antenna holder pass in and out described pipeline in order to control, and controls described test and turn table.
2. fully anechoic chamber according to claim 1, it is characterized in that, the height of described hole is identical with the height that described test turns table, and the described end of described pipeline is communicated with described test cabinet by described hole, by the control of described drive unit, described antenna holder passes in and out described test cabinet by described hole.
3. fully anechoic chamber according to claim 2 is characterized in that, described antenna holder device more comprises:
One support is arranged at described exterior wall, is combined with the described end of described pipeline, in order to support described pipeline.
4. fully anechoic chamber according to claim 3 is characterized in that, described antenna holder has gear wheel line, and described drive unit comprises:
One gear is arranged on the described support, with the engagement of described gear wheel line; And
One runner is arranged in the described pipeline, connects this gear.
5. fully anechoic chamber according to claim 4 is characterized in that, described drive unit more comprises:
One fibre circuit connects described runner; And
One controller connects described fibre circuit, rotates and makes described antenna holder pass in and out described pipeline in order to control described runner, and control simultaneously described test and turn table.
6. fully anechoic chamber according to claim 1 is characterized in that, described antenna holder is cylindric antenna holder.
7. fully anechoic chamber according to claim 6 is characterized in that, described pipeline is the cylindrical hollow pipeline.
8. fully anechoic chamber according to claim 1 is characterized in that, described antenna holder is solid steel pole.
9. fully anechoic chamber according to claim 1 is characterized in that, comprises at least one suction ripple thing in the described test cabinet.
10. fully anechoic chamber according to claim 9 is characterized in that, the other end of described pipeline is supported by a thecal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102050196A CN102882613A (en) | 2011-07-13 | 2011-07-13 | Full anechoic darkroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102050196A CN102882613A (en) | 2011-07-13 | 2011-07-13 | Full anechoic darkroom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102882613A true CN102882613A (en) | 2013-01-16 |
Family
ID=47483783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102050196A Pending CN102882613A (en) | 2011-07-13 | 2011-07-13 | Full anechoic darkroom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102882613A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3407075A1 (en) * | 2017-05-24 | 2018-11-28 | Rohde & Schwarz GmbH & Co. KG | Anechoic chamber for testing a device under test |
| CN109743749A (en) * | 2019-03-22 | 2019-05-10 | 晶晨半导体(上海)股份有限公司 | WIFI throughput testing approach and device |
| CN110488100A (en) * | 2019-08-22 | 2019-11-22 | 北京中测国宇科技有限公司 | A kind of turntable and its working method of antenna OTA test macro |
| US10935596B2 (en) | 2018-07-20 | 2021-03-02 | Rohde & Schwarz Gmbh & Co. Kg | Test system and method with a thermally isolated hollow body inside an over the air measurement chamber |
-
2011
- 2011-07-13 CN CN2011102050196A patent/CN102882613A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3407075A1 (en) * | 2017-05-24 | 2018-11-28 | Rohde & Schwarz GmbH & Co. KG | Anechoic chamber for testing a device under test |
| US10935596B2 (en) | 2018-07-20 | 2021-03-02 | Rohde & Schwarz Gmbh & Co. Kg | Test system and method with a thermally isolated hollow body inside an over the air measurement chamber |
| CN109743749A (en) * | 2019-03-22 | 2019-05-10 | 晶晨半导体(上海)股份有限公司 | WIFI throughput testing approach and device |
| CN110488100A (en) * | 2019-08-22 | 2019-11-22 | 北京中测国宇科技有限公司 | A kind of turntable and its working method of antenna OTA test macro |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102882613A (en) | Full anechoic darkroom | |
| CN204649862U (en) | A kind of Multi probe near field antenna test macro | |
| US20130095875A1 (en) | Antenna selection based on orientation, and related apparatuses, antenna units, methods, and distributed antenna systems | |
| US20160134439A1 (en) | Frequency shifting a communications signal(s) in a multi-frequency distributed antenna system (das) to avoid or reduce frequency interference | |
| CN102025429A (en) | Radio frequency switching unit capable of being used for automatic testing of WCDMA (Wideband Code Division Multiple Access) /GSM (Global System for Mobile Communication) terminal radio frequency | |
| US20150015435A1 (en) | Receiver signal strength indicator meter for automatic antenna alignment in indoor and outdoor mount applications | |
| RU2015140827A (en) | NODES AND METHODS FOR IMPROVING POSITIONING | |
| KR20120014050A (en) | Antenna array | |
| WO2009031075A3 (en) | Antenna selection training protocol for wireless medical applications | |
| WO2009072775A1 (en) | Multi-antenna radio channel measurement system and method for two-way radio channel measurement | |
| CN107643517A (en) | A kind of point-to-point precision distance measurement system based on UWB ranging technologies | |
| CN109687146A (en) | The angle of declination regulating device and electrical tilt antenna of electrical tilt antenna | |
| CN103988364A (en) | MIMO coverage over bi-directional leaky cables | |
| KR101763326B1 (en) | Apparatus and Method for Measuring Multiple Link Wireless Channel | |
| CN206848464U (en) | Portable navigation management secondary radar signal near-field/far-field detector | |
| CN107817486A (en) | A kind of precision ranging device based on UWB | |
| CN113242098A (en) | Radio frequency performance test system and method | |
| CN109412717A (en) | LoRa on-site signal tester, method and test macro | |
| CN106471552A (en) | Data transmission system | |
| US20160233974A1 (en) | FREQUENCY INDEPENDENT ISOLATION OF DUPLEXED PORTS IN DISTRIBUTED ANTENNA SYSTEMS (DASs), AND RELATED DEVICES AND METHODS | |
| CN110994202A (en) | Application system of ultra-wideband composite antenna | |
| CN204008888U (en) | One provenance stirs electromagnetic reverberation room | |
| CN203705546U (en) | Antenna phase position testing system | |
| US8917093B2 (en) | Local coil for magnetic resonance applications and a magnetic resonance system | |
| CN210327572U (en) | 5G indoor and outdoor multi-channel MIMO (multiple input multiple output) receiving and transmitting active antenna system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |