CN202679379U - Test device of wireless communication device - Google Patents
Test device of wireless communication device Download PDFInfo
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- CN202679379U CN202679379U CN2012202814570U CN201220281457U CN202679379U CN 202679379 U CN202679379 U CN 202679379U CN 2012202814570 U CN2012202814570 U CN 2012202814570U CN 201220281457 U CN201220281457 U CN 201220281457U CN 202679379 U CN202679379 U CN 202679379U
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Abstract
The utility model relates to a test device of a wireless communication device. The test device comprises a box body, a wave-absorbing material, a receiving antenna, a signal output port, a first coaxial cable, a signal input port, a second coaxial cable and a load. The box body which is sealed is made of an electromagnetic shielding material and is applicable to accommodating a wireless communication device to be tested. The wave-absorbing material is covered on at least partial inner surface of the box body. The receiving antenna arranged in the box body is used for receiving electromagnetic waves radiated by the wireless communications device. The signal output port is arranged at a first outer surface of the box body. The first coaxial cable used for connecting the receiving antenna is connected from the inner surface of the box body to the signal output port. The signal input port is arranged on a second external surface of the box body. The second coaxial cable used for connecting the wireless communication device is connected from the inner surface of the box body to the signal input port. The load of which the impedance is 50 ohms is used for installing the signal input port.
Description
Technical field
The utility model relates to the test of the wireless of electronic product and electrical property aspect, especially relates to a kind of testing equipment of Wireless Telecom Equipment.
Background technology
Along with the development of science and technology, the product manufacturing technology constantly progresses greatly, so that electronic product is constantly to light, thin, little aspect development.But also be accompanied by the continuous lifting of product work frequency, electromagnetic interference problem is day by day serious.American-European countries has all formulated the electromagnetic compatibility problem that the rules of being correlated with are come modular product for this reason, and product must authenticate through specific mechanism before listing.
In addition, because the development of radiotechnics, the radio signal in the space is more and more.Influence each other between these signals, can cause equipment or instrument damage, cisco unity malfunction when serious.Even cause life danger and more serious consequence.
For the authentication test by the electromagnetic compatibility aspect, radiation amplitude that must the reduce signal when product design, but since the noise of spacing wireless signal so that in realistic space, can't detect again this radiation signal amplitude.So the testing equipment of Wireless Telecom Equipment has following several at present:
1, anechoic chamber, it is through the shielding design, and with effective electromagnetic wave absorption energy, simulation free space environment carries out accurate electromagnetism test at the laid inside absorbing material.Standard darkrooms such as 3 meters methods, 10 Mi Fa.The good characteristics such as the shielding of anechoic chamber are admitted by people, but involving great expense of anechoic chamber is not the general enterprises acceptable.
2, shielded box, this is the shield that utilizes conduction or permeability magnetic material to make, and electromagnetic capability is limited in the metallic object that is used for suppressing radiated interference in certain spatial dimension.The shielded box purpose has: the one, and the radiation electric magnetic energy of limiting device inside surmounts certain zone, and the 2nd, prevent that external radiation electric magnetic energy from entering this zone.Although this equipment can be realized certain shielding properties, but because its manufactured materials is metal, be formed by stacking so the effect of electromagnetic wave in this zone is countless reflected waves and primary radiation ripple, this just serves destabilizing factor to test tape, so that test result has deviation.
The utility model content
The utility model main purpose provides a kind of testing equipment of Wireless Telecom Equipment, with small size, the low-cost good characteristics combination of shielding, areflexia and the shielded box of anechoic chamber, and avoids not enough as far as possible.
The testing equipment of a kind of Wireless Telecom Equipment that the utility model proposes comprises casing, absorbing material, reception antenna, signal output, the first coaxial cable, signal input, the second coaxial cable and load.This casing is airtight and is made by electromagnetic shielding material that this casing is suitable for holding a Wireless Telecom Equipment to be measured.Absorbing material covers at least part of inner surface in this casing.Reception antenna is located in this casing, is used for receiving the electromagnetic wave of this Wireless Telecom Equipment radiation.Signal output is located at the first outer surface of this casing.The first coaxial cable is used for connecting this reception antenna, and is connected to this signal output from the inner surface of this casing.Signal input is located at the second outer surface of this casing.The second coaxial cable is used for connecting this Wireless Telecom Equipment, and is connected to this signal input from the inner surface of this casing.Load is used for being installed on this signal input, and the impedance of this load is 50 ohm.This casing is cuboid, and the length of this casing is 2～3 λ, and wide is 1.5-2 λ, and height is 1.5-2 λ, and λ is the electromagnetic wavelength of this Wireless Telecom Equipment radiation.
In an embodiment of the present utility model, above-mentioned testing equipment also comprises a carrier, is fixed in this casing, and this Wireless Telecom Equipment and this reception antenna all are arranged on this carrier.
In an embodiment of the present utility model, this Wireless Telecom Equipment and this reception antenna are at a distance of a distance, and this distance is 0.5～1 λ, and λ is the electromagnetic wavelength of this Wireless Telecom Equipment radiation.
In an embodiment of the present utility model, above-mentioned testing equipment also comprises a calibration transmitting antenna, is arranged in this casing, and connects this second coaxial cable.
In an embodiment of the present utility model, this casing has a chamber door, and this testing equipment also comprises a drive unit, and this drive unit connects this chamber door.
In an embodiment of the present utility model, this chamber door is of a size of 1.2 times of size of this Wireless Telecom Equipment.
In an embodiment of the present utility model, this drive unit is pneumatic means.
In an embodiment of the present utility model, this pneumatic means has a plurality of cylinders.
Testing equipment of the present utility model adopted electromagnetic shielding material as casing forming shield, and absorbing material is set with simulation free space environment in casing, and the utility model has been introduced 50 ohm load, reduced and leaked.Therefore testing equipment of the present utility model had both possessed the small size of shielded box, characteristics cheaply, had again shielding, the areflexia of anechoic chamber.
Description of drawings
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, wherein:
Fig. 1 illustrates the schematic appearance of the testing equipment of the utility model one embodiment.
Fig. 2 illustrates the schematic internal view of the testing equipment of the utility model one embodiment.
Embodiment
In order to realize the high reliability test, the utility model is in conjunction with the small size advantage of low cost of shielding, areflexia and the shielded box of anechoic chamber.The testing equipment of the utility model embodiment can realize noiseless unreflected function and the relative small size of anechoic chamber to a certain extent, therefore is referred to as " microwave camera bellows " at this.
Fig. 1 illustrates the schematic appearance of the testing equipment of the utility model one embodiment.Fig. 2 illustrates the schematic internal view of the testing equipment of the utility model one embodiment.With reference to Fig. 1, shown in Figure 2, testing equipment 100 can comprise casing 101, absorbing material 102, signal input 103, signal output 104, carrier 105, reception antenna 106, calibration transmitting antenna 107, the first coaxial cable 108, the second coaxial cable 109, load 110 and drive unit 120.
Casing 101 is airtight casing, and its effect is shielding, and the internal electrical magnetic wave is limited in this zone, and the outside electromagnetic wave can not enter this zone.Usually casing 101 adopts and makes such as electromagnetic shielding materials such as metal materials.The size of casing 101 is suitable for holding a Devices to test 200.This equipment is such as being the electronic products such as Wireless Telecom Equipment.In one embodiment, the shape of casing 101 can be cuboid, but is appreciated that casing 101 can adopt other any suitable shape.
It is packaging etc. that absorbing material 102 can be polyurethane foam type, nonwoven fabrics nonflammable, silicate board metal film.
Signal output 104 and signal input 103 can be located at respectively on first outer surface and the second outer surface of casing 101.The first outer surface and the second outer surface can be same outer surface, also can be different outer surfaces.
The first coaxial cable 108 is connected to signal output 104 with reception antenna 106 in casing 101, signal output 104 can further connect checkout equipment by holding wire.Thereby the electromagnetic wave signal that reception antenna 106 is received is transferred to casing 101 checkout equipment outward.
The second coaxial cable 109 is connected to signal input 104 with Devices to test 200 in casing 101.Signal input 104 is calibrating signal input interfaces.
In addition, at signal input 104 load 110 is installed.The impedance of load 110 is 50 Ω.In test process, load 110 is connected on the signal input 104, leaks the field to reduce.
In embodiment of the present utility model, the size of casing can be according to frequency of utilization, and namely the frequency (or wavelength) of 200 electromagnetic signals of Devices to test is determined.For example, when casing 101 adopted rectangular shape, casing long (L), wide (W), high (H) can design according to frequency of utilization, and W, H size can be (1.5～2) times λ, L and choose 2～3 λ, can realize small size like this.λ is the electromagnetic wavelength of Devices to test 200 radiation.
In embodiment of the present utility model, when drive unit 120 adopts pneumatic means, can use the multi-cylinder structure can realize pneumatic means small size, automation.
In embodiment of the present utility model, the size of chamber door 111 can design according to Devices to test 200 sizes.For example the size of chamber door 111 can be 1.2 times of Devices to test 200, and this design can be avoided the camera bellows door as far as possible and leak the field.
The course of work of the testing equipment 100 of the utility model embodiment is as follows:
Calibration: the signal input 103 of the standard signal of standard device (not shown) generation being exported to testing equipment 100, it is consistent in the field intensity amplitude at the reception antenna 106 places field intensity amplitude during whether with design that recycling reception antenna 106 detects these standard signals, if two test results just can illustrate that unanimously this equipment 100 is stable, can normally use, otherwise then devices illustrated 100 is measured and is had error, needs repairing.After calibration is finished, need load 110 is connected on the signal input, just can test.
Test: at first start testing equipment 100 chamber door 111 is opened, use manipulator that Devices to test 200 is put into the Devices to test lay down location of casing 101, then chamber door 111 is closed, test.After to be tested the finishing, chamber door 111 is opened, and uses manipulator to take out Devices to test 200, then tests next time.
The electromagnetic shielding material of the utility model embodiment forming shield, and arranges absorbing material with simulation free space environment as casing in casing, and the utility model has been introduced 50 ohm load, has reduced to leak.Therefore testing equipment of the present utility model had both possessed the small size of shielded box, characteristics cheaply, had again shielding, the areflexia of anechoic chamber.
Although the utility model discloses as above with preferred embodiment; so it is not to limit the utility model; any those skilled in the art; within not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection range of the present utility model is worked as with being as the criterion that claims were defined.
Claims (8)
1. the testing equipment of a Wireless Telecom Equipment is characterized in that comprising:
Casing, this casing are airtight and are made by electromagnetic shielding material that this casing is suitable for holding a Wireless Telecom Equipment to be measured;
Absorbing material covers at least part of inner surface in this casing;
Reception antenna is located in this casing, is used for receiving the electromagnetic wave of this Wireless Telecom Equipment radiation;
Signal output is located at the first outer surface of this casing;
The first coaxial cable is used for connecting this reception antenna, and is connected to this signal output from the inner surface of this casing;
Signal input is located at the second outer surface of this casing;
The second coaxial cable is used for connecting this Wireless Telecom Equipment, and is connected to this signal input from the inner surface of this casing; And
Load is used for being installed on this signal input, and the impedance of this load is 50 ohm;
Wherein this casing is cuboid, and the length of this casing is 2～3 λ, and wide is 1.5-2 λ, and height is 1.5-2 λ, and λ is the electromagnetic wavelength of this Wireless Telecom Equipment radiation.
2. the testing equipment of Wireless Telecom Equipment as claimed in claim 1 is characterized in that, also comprises a carrier, is fixed in this casing, and this Wireless Telecom Equipment and this reception antenna all are arranged on this carrier.
3. the testing equipment of Wireless Telecom Equipment as claimed in claim 1 or 2 is characterized in that, this Wireless Telecom Equipment and this reception antenna are at a distance of a distance, and this distance is 0.5～1 λ, and λ is the electromagnetic wavelength of this Wireless Telecom Equipment radiation.
4. the testing equipment of Wireless Telecom Equipment as claimed in claim 1 is characterized in that, also comprises a calibration transmitting antenna, is arranged in this casing, and connects this second coaxial cable.
5. the testing equipment of Wireless Telecom Equipment as claimed in claim 1 is characterized in that, this casing has a chamber door, and this testing equipment also comprises a drive unit, and this drive unit connects this chamber door.
6. the testing equipment of Wireless Telecom Equipment as claimed in claim 5 is characterized in that, this chamber door is of a size of 1.2 times of size of this Wireless Telecom Equipment.
7. the testing equipment of Wireless Telecom Equipment as claimed in claim 5 is characterized in that, this drive unit is pneumatic means.
8. the testing equipment of Wireless Telecom Equipment as claimed in claim 7 is characterized in that, this pneumatic means has a plurality of cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202814570U CN202679379U (en) | 2012-06-14 | 2012-06-14 | Test device of wireless communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202814570U CN202679379U (en) | 2012-06-14 | 2012-06-14 | Test device of wireless communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202679379U true CN202679379U (en) | 2013-01-16 |
Family
ID=47500251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202814570U Expired - Lifetime CN202679379U (en) | 2012-06-14 | 2012-06-14 | Test device of wireless communication device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202679379U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049133A (en) * | 2015-08-06 | 2015-11-11 | 京信通信技术(广州)有限公司 | Smart antenna calibrating device |
| CN108132391A (en) * | 2016-12-01 | 2018-06-08 | 深圳市新益技术有限公司 | Plummer and antenna measurement isolation ward |
| WO2021062816A1 (en) * | 2019-09-30 | 2021-04-08 | 华为技术有限公司 | Device and method for testing base station apparatus |
| CN113783629A (en) * | 2020-05-22 | 2021-12-10 | 安立股份有限公司 | Test apparatus and test method |
-
2012
- 2012-06-14 CN CN2012202814570U patent/CN202679379U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049133A (en) * | 2015-08-06 | 2015-11-11 | 京信通信技术(广州)有限公司 | Smart antenna calibrating device |
| CN108132391A (en) * | 2016-12-01 | 2018-06-08 | 深圳市新益技术有限公司 | Plummer and antenna measurement isolation ward |
| CN108132391B (en) * | 2016-12-01 | 2024-05-03 | 深圳市新益技术有限公司 | Load-bearing table and antenna measurement isolation chamber |
| WO2021062816A1 (en) * | 2019-09-30 | 2021-04-08 | 华为技术有限公司 | Device and method for testing base station apparatus |
| CN113783629A (en) * | 2020-05-22 | 2021-12-10 | 安立股份有限公司 | Test apparatus and test method |
| CN113783629B (en) * | 2020-05-22 | 2023-11-07 | 安立股份有限公司 | Test device and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190103 Address after: 201619 No. 5500 Shenzhuan Highway, Songjiang District, Shanghai Patentee after: Baolong Huofu (Shanghai) Electronics Co., Ltd. Address before: 201619 No. 5500 Shenzhuan Highway, Songjiang District, Shanghai Patentee before: Baolong Motor Science & Technology Co., Ltd., Shanghai |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |