CN211653005U - Antenna testing device - Google Patents
Antenna testing device Download PDFInfo
- Publication number
- CN211653005U CN211653005U CN202020095561.5U CN202020095561U CN211653005U CN 211653005 U CN211653005 U CN 211653005U CN 202020095561 U CN202020095561 U CN 202020095561U CN 211653005 U CN211653005 U CN 211653005U
- Authority
- CN
- China
- Prior art keywords
- antenna
- testing
- cavity
- box
- test
- 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.)
- Active
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses an antenna testing device, which comprises a testing box, wherein the interior of the testing box is hollow to form a testing cavity for placing an antenna to be tested; at least one cavity wall of the test cavity is provided with a receiving antenna; the antenna testing device further comprises a shielding box, a shielding cavity is formed in the shielding box in a hollow mode, and the testing box is placed in the shielding cavity. The antenna testing device can be used for testing millimeter waves, the antenna to be tested is placed in the testing cavity of the testing box, and the space loss and space reflection caused by the existence of other objects can be avoided due to the fact that the testing cavity is only provided with the antenna to be tested. Set up receiving antenna at the chamber wall in test cavity, the signal transmits to receiving antenna through the antenna that awaits measuring in the test procedure, because test cavity volume is less, test transmission distance is short, can solve the big problem of millimeter wave space loss.
Description
Technical Field
The utility model relates to an antenna field especially relates to an antenna testing arrangement.
Background
Millimeter wave (millimeter wave) refers to an electromagnetic wave having a wavelength of 1 to 10 mm and is located in a wavelength range where microwave and far-infrared waves overlap. The theory and technology of millimeter waves are respectively the extension of microwave to high frequency and the development of light to low frequency, and at present, millimeter waves are being widely applied to IOT (Internet of things) and mobile phone 5G products, so the millimeter wave testing technology is also becoming more important.
Referring to fig. 1, in the conventional antenna testing apparatus, both an antenna to be tested and a receiving antenna are disposed in a shielding box, and the receiving antenna is electrically connected to a tester outside the shielding box. However, the millimeter wave has the characteristics of high frequency, short wavelength, large space loss and short transmission distance, so that the conventional antenna testing device has poor testing effect when being used for millimeter wave testing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an antenna testing arrangement, the poor problem of test effect when solving the millimeter wave test.
To achieve the purpose, the utility model adopts the following technical proposal:
the antenna testing device comprises a testing box, wherein the interior of the testing box is hollow to form a testing cavity for placing an antenna to be tested; at least one cavity wall of the test cavity is provided with a receiving antenna;
the antenna testing device further comprises a shielding box, a shielding cavity is formed in the shielding box in a hollow mode, and the testing box is placed in the shielding cavity.
As an alternative of the present invention, the receiving antenna is a millimeter wave array antenna, and each cavity wall of the testing cavity is provided with one millimeter wave array antenna.
As an alternative of the present invention, the area of the millimeter wave array antenna is equal to the area of the cavity wall where the millimeter wave array antenna is located.
As an alternative of the present invention, a tester is disposed in the shielding chamber, and the tester is electrically connected to the receiving antenna.
As an alternative of the present invention, the outer surface of the test box is grounded.
As an alternative of the present invention, the testing box is a rectangular testing box, the testing chamber includes six rectangular testing chamber walls, each the rectangular testing chamber wall is equipped with one receiving antenna.
As an alternative of the present invention, the test box is a spherical test box, the test chamber includes a spherical test chamber wall, and the receiving antenna is disposed on the spherical test chamber wall; the receiving antenna is a millimeter wave array antenna, and the millimeter wave array antenna comprises a plurality of antenna units which are distributed on the wall of the spherical testing cavity at equal intervals.
As an alternative of the utility model, each cavity wall of the shielding cavity is provided with a wave absorbing layer.
As an alternative of the present invention, the area of the wave-absorbing layer is equal to the area of the wall of the cavity where the wave-absorbing layer is located.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides an antenna testing arrangement can be used to test the millimeter wave. The antenna testing device places the antenna to be tested in the testing cavity of the testing box, and the testing cavity is only provided with the antenna to be tested, so that the space loss and space reflection caused by the existence of other objects can be avoided. The receiving antenna is arranged on the cavity wall of the test cavity, and a signal is transmitted to the receiving antenna through the antenna to be tested in the test process; furthermore, a shielding box is arranged outside the test box, so that signal leakage can be prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.
Fig. 1 is a schematic structural diagram of a conventional antenna testing apparatus;
fig. 2 is a schematic structural diagram of an antenna testing apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a receiving antenna according to an embodiment of the present invention.
Illustration of the drawings: 1. a shield case; 2. an antenna to be tested; 3. a receiving antenna; 4. a tester; 5. and (4) a test box.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment of the utility model provides an antenna testing arrangement can realize the test of millimeter wave.
Referring to fig. 1-2, the antenna testing apparatus includes a testing box 5, and the interior of the testing box 5 is hollow to form a testing chamber for placing the antenna 2 to be tested. At least one of the walls of the test chamber is provided with a receiving antenna 3.
The antenna testing device further comprises a shielding box 1, wherein a shielding cavity is formed in the shielding box 1 in a hollow mode, and the testing box 5 is placed in the shielding cavity.
The antenna test device can be used for testing millimeter waves. The antenna testing device places the antenna 2 to be tested in the testing cavity of the testing box 5, and because the testing cavity is only provided with the antenna 2 to be tested, the space loss and space reflection caused by the existence of other objects can be avoided. Set up receiving antenna 3 at the chamber wall in test cavity, the signal transmits to receiving antenna 3 through antenna 2 that awaits measuring in the test procedure, because test cavity volume is less, test transmission distance is short, can solve the big problem of millimeter wave space loss.
In the embodiment of the present invention, the receiving antenna 3 is a millimeter wave array antenna, and the outer surface of the test box 5 is grounded. Illustratively, the millimeter wave array antenna is a millimeter wave matrix antenna.
The millimeter wave array antenna comprises a plurality of antenna units which are arranged in an array mode, and the number of the antenna units can be determined according to actual test requirements. The millimeter wave array antenna has high gain and high space transmission energy, so that the antenna testing device has good testing effect.
In the embodiment of the present invention, a millimeter wave array antenna is preferably disposed on each chamber wall of the testing chamber. The area of the millimeter wave array antenna is equal to the area of the cavity wall where the millimeter wave array antenna is located, preferably equal to the area of the cavity wall where the millimeter wave array antenna is located. Therefore, the signal of the antenna 2 to be tested can be transmitted in 360 degrees without dead angles, the directivity is comprehensive, and the transmission loss of the transmitted signal is effectively reduced.
Illustratively, the test box 5 is a rectangular test box, and the test chamber includes six rectangular test chamber walls, and each rectangular test chamber wall is provided with a receiving antenna 3.
Exemplarily, the test box 5 is a sphere test box, the test chamber includes a spherical test chamber wall, the spherical test chamber wall is provided with the receiving antenna 3, the receiving antenna 3 is a millimeter wave array antenna, and the millimeter wave array antenna includes a plurality of antenna units distributed on the spherical test chamber wall at equal intervals.
The embodiment of the utility model provides an in, be equipped with tester 4 in the shielding chamber, each receiving antenna 3 is connected to 4 electricity of tester. The signal is transmitted to the receiving antenna 3 through the antenna 2 to be tested, and then transmitted to the tester 4, so that the test is completed.
The embodiment of the utility model provides an in, each chamber wall in shielding chamber all is equipped with the absorbed wave layer, and the area of absorbed wave layer equals its place chamber wall's area. The wave-absorbing layer is made of wave-absorbing materials, so that millimeter waves and external signals are isolated, signal leakage is prevented, and signal shielding is realized.
The shielding box 1 is a rectangular shielding box, the shielding cavity comprises six rectangular shielding cavity walls, and each rectangular shielding cavity wall is provided with a wave absorbing layer.
The embodiment of the utility model provides an antenna testing arrangement can be used to test the millimeter wave. The antenna testing device places the antenna 2 to be tested in the testing cavity of the testing box 5, and because the testing cavity is only provided with the antenna 2 to be tested, the space loss and space reflection caused by the existence of other objects can be avoided. Set up receiving antenna 3 at the chamber wall in test cavity, the signal transmits to receiving antenna 3 through antenna 2 that awaits measuring in the test procedure, because test cavity volume is less, test transmission distance is short, can solve the big problem of millimeter wave space loss.
Furthermore, in the antenna testing device, the receiving antenna 3 adopts a millimeter wave array antenna, and each cavity wall of the testing cavity is provided with the millimeter wave array antenna, so that signals can be transmitted in 360 degrees without dead angles, the directivity is comprehensive, and the transmission loss of the signals is effectively reduced.
In conclusion, the antenna testing device can solve the problem of poor millimeter wave testing effect, is simple in structure, easy to implement, low in cost and wide in application prospect in the millimeter wave coupling test and the factory test.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The antenna testing device is characterized by comprising a testing box, wherein the interior of the testing box is hollow to form a testing cavity for placing an antenna to be tested; at least one cavity wall of the test cavity is provided with a receiving antenna;
the antenna testing device further comprises a shielding box, a shielding cavity is formed in the shielding box in a hollow mode, and the testing box is placed in the shielding cavity.
2. The antenna testing device of claim 1, wherein the receiving antenna is a millimeter wave array antenna, and each cavity wall of the testing cavity is provided with one millimeter wave array antenna.
3. The antenna testing device of claim 2, wherein the area of the millimeter wave array antenna is equal to the area of the cavity wall in which the millimeter wave array antenna is located.
4. The antenna testing device of claim 1, wherein a tester is disposed in the shielded cavity, and the tester is electrically connected to each of the receiving antennas.
5. The antenna testing apparatus of claim 1, wherein an outer surface of the test box is grounded.
6. The antenna testing device of claim 1, wherein the testing box is a rectangular testing box, the testing chamber comprises six rectangular testing chamber walls, and each rectangular testing chamber wall is provided with one receiving antenna.
7. The antenna testing device of claim 1, wherein the testing box is a spherical testing box, the testing chamber comprises a spherical testing chamber wall, and the receiving antenna is disposed on the spherical testing chamber wall; the receiving antenna is a millimeter wave array antenna, and the millimeter wave array antenna comprises a plurality of antenna units which are distributed on the wall of the spherical testing cavity at equal intervals.
8. The antenna testing device of claim 1, wherein each cavity wall of the shielding cavity is provided with a wave absorbing layer.
9. The antenna testing device according to claim 8, wherein the area of the wave-absorbing layer is equal to the area of the cavity wall where the wave-absorbing layer is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020095561.5U CN211653005U (en) | 2020-01-16 | 2020-01-16 | Antenna testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020095561.5U CN211653005U (en) | 2020-01-16 | 2020-01-16 | Antenna testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211653005U true CN211653005U (en) | 2020-10-09 |
Family
ID=72706061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020095561.5U Active CN211653005U (en) | 2020-01-16 | 2020-01-16 | Antenna testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211653005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114401210A (en) * | 2022-01-07 | 2022-04-26 | 立讯智造(浙江)有限公司 | Method for testing wearable device |
-
2020
- 2020-01-16 CN CN202020095561.5U patent/CN211653005U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114401210A (en) * | 2022-01-07 | 2022-04-26 | 立讯智造(浙江)有限公司 | Method for testing wearable device |
| CN114401210B (en) * | 2022-01-07 | 2023-08-15 | 立讯智造(浙江)有限公司 | Testing method of wearable device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9964577B2 (en) | Wireless terminal testing system | |
| CN101750549A (en) | Electromagnetic measurement comprehensive darkroom for electromagnetic compatibility test and antenna measurement | |
| CN107543975B (en) | Non-full-shielding type whole-motor-car electromagnetic radiation emission testing device | |
| CN106936524B (en) | Test system of wireless terminal | |
| CN211653005U (en) | Antenna testing device | |
| CN209217191U (en) | Millimetre-wave radar plane parasitic broadband antenna array, radar antenna and radar | |
| CN108574540B (en) | Electromagnetic wave chamber based on multichannel antenna | |
| CN107732460A (en) | Ka-band fully-polarized ultrathin frequency selective surface and antenna housing | |
| CN110571508A (en) | Broadband integrated antenna | |
| Icheln | Methods for measuring RF radiation properties of small antennas | |
| KR101134202B1 (en) | anechoic chamber having ferrite resonator | |
| CN107634344B (en) | Small-opening-angle horn shaped antenna with axial corrugated transition section | |
| CN110571523A (en) | Three-wire polarized antenna with large frequency ratio | |
| CN113794056B (en) | Frequency selection wave-absorbing super surface for realizing high-low frequency integrated test environment | |
| CN214375029U (en) | Compact range antenna test system | |
| WO2022063280A1 (en) | Antenna unit, array, apparatus, and terminal | |
| Icheln et al. | Application of a GTEM cell to small antenna measurements | |
| CN212209738U (en) | Millimeter wave radar | |
| Lu et al. | Broadband reflectarray for millimeter wave coverage enhancement in indoor NLOS scenario | |
| CN219144502U (en) | Reverberation room radio frequency test system composed of monopole array antennas | |
| CN220306515U (en) | Directional antenna structure | |
| CN109884406A (en) | High-frequency electromagnetic shielding efficiency measuring system, measurement method and device | |
| CN219106505U (en) | Novel omnidirectional radiation antenna | |
| CN216312062U (en) | Broadband pyramid wave-absorbing material | |
| CN212392376U (en) | Dual-polarized two-dimensional synthetic aperture microwave radiometer antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |