CN209486192U

CN209486192U - Antenna switch

Info

Publication number: CN209486192U
Application number: CN201821947418.3U
Authority: CN
Inventors: 黄淑慧
Original assignee: Shenzhen Zhongcheng Technology Co Ltd
Current assignee: Shenzhen Zhongcheng Technology Co Ltd
Priority date: 2018-11-23
Filing date: 2018-11-23
Publication date: 2019-10-11
Anticipated expiration: 2028-11-23

Abstract

The utility model discloses a kind of antenna switches, including shielded box, test antenna and directional aerial；The inside of the shielded box is equipped with accommodating chamber, and the inner wall of the shielded box is covered with absorbing material and surrounds the accommodating chamber；The test antenna is set in the accommodating chamber；The directional aerial is set to outside the shielded box, and the directional aerial connect conducting with the test antenna, and the directional aerial is used to switching to the test antenna received signal into phasing signal output；The omnidirectional signal that test product issues can be converted to phasing signal by this scheme, because the signal strength of phasing signal is much higher than omnidirectional signal, so can directly be detected at this time by signal strength detection device to phasing signal, hereafter the actual signal intensity of test product can be learnt by carrying out translation operation to testing result, i.e. without carrying out signal strength detection in the biggish shielded box of volume or darkroom, testing cost is thus greatly reduced.

Description

Antenna switch

Technical field

The utility model relates to the technical solution of aerial signal detection field, in particular to a kind of antenna switch.

Background technique

With the fast development of wireless communication technique, wireless communications products are seen everywhere, small to bluetooth headset, intelligent hand Ring, mobile phone arrive greatly laptop, smart home, unmanned plane etc., and demand of the user to these communication equipments is increasing, companion It is also continuously improved with to its QoS requirement.

Antenna used in existing wireless communications equipment is omnidirectional antenna, and radiation scope is 360 degree of surrounding, is suitable for radiating model Small distance is enclosed, antenna gain is low, therefore is all usually by the way that test product is directly put to the test of the radio-frequency performance of these equipment It is tested in shielded box or darkroom close to test antenna, however shielded box or darkroom volume is larger and laid inside is largely inhaled Wave material causes its price very expensive, considerably increases testing cost.

Utility model content

The purpose of this utility model is to provide a kind of antenna switches, higher to solve prior art testing cost Problem.

In order to solve the above-mentioned technical problem, the utility model provides a kind of antenna switch, including, shielded box, institute The inside for stating shielded box is equipped with accommodating chamber, and the inner wall of the shielded box is covered with absorbing material and surrounds the accommodating chamber；Test days Line, the test antenna are set in the accommodating chamber；And directional aerial, the directional aerial are set to outside the shielded box, institute It states directional aerial and connect conducting with the test antenna, the directional aerial is for switching to the test antenna received signal Phasing signal output.

Wherein, the shielded box is metallic shield case.

Wherein, the absorbing material is the inner wall of the shielded box is wave-shaped, planar, multi-concave arrangement shape or how convex Face arranges shape arrangement.

Wherein, in the inner wall of the shielded box in more convex surfaces arrangement shape arrangement, each convex surface is in the absorbing material Spininess.

Wherein, it is connected and is connected by RF cable between the directional aerial and the test antenna.

Wherein, the test antenna is directional aerial, near field antenna or array antenna.

Wherein, insulating support is equipped with inside the accommodating chamber, the insulating support is for installing fixed test product.

Wherein, the insulating support and the test antenna are positioned opposite.

Wherein, the bottom of the accommodating chamber is equipped with the insulating support, and the top of the accommodating chamber is equipped with insulating telescopic arm, The insulating telescopic arm and the insulating support are positioned opposite, and the test antenna is equipped on the insulating telescopic arm, described Insulating telescopic arm is able to drive the test antenna toward and away from the insulating support.

Wherein, the top of the accommodating chamber is equipped with the test antenna, and the bottom of the accommodating chamber is equipped with insulation branch Frame, the insulating support include elevating lever and mounting platform interconnected, and the elevating lever is able to drive the mounting platform Toward and away from the test antenna.

The beneficial effects of the utility model are as follows:

Since the test antenna is set in the accommodating chamber, the directional aerial is set to outside the shielded box, described fixed Conducting is connect with the test antenna to antenna, the directional aerial is for switching to orient the test antenna received signal Signal output, so the omnidirectional signal that test product issues will be tested when test product is placed in and is tested in accommodating chamber Try antenna receive, then directional aerial will test the received omnidirectional signal of antenna switch to phasing signal output, and because orientation letter Number signal strength be much higher than omnidirectional signal, so at this time can directly by signal strength detection device to phasing signal carry out Detection, the actual signal intensity of test product can be learnt by hereafter carrying out translation operation to testing result, i.e., without volume compared with Signal strength detection is carried out in big shielded box or darkroom, thus greatly reduces testing cost.

Detailed description of the invention

It, below will be to attached needed in embodiment in order to illustrate more clearly of the technical solution of the utility model Figure is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is the antenna switch structural schematic diagram that the utility model one embodiment provides；

Fig. 2 is the antenna switch structural schematic diagram that second embodiment of the utility model provides；

Fig. 3 be the utility model third embodiment provide antenna switch structural schematic diagram (insulating telescopic arm is stretched Long status)；

Fig. 4 is antenna switch structural schematic diagram (the insulating telescopic arm receipts that the utility model third embodiment provides Contracting state)；

Fig. 5 is antenna switch structural schematic diagram (the elevating lever rising shape that the 4th embodiment of the utility model provides State)；

Fig. 6 is antenna switch structural schematic diagram (the elevating lever decline shape that the 4th embodiment of the utility model provides State).

Specific embodiment

Below in conjunction with the attached drawing in the utility model embodiment, to the technical solution in the utility model embodiment It is clearly and completely described.

From fig. 1, it can be seen that antenna switch described in the utility model one embodiment includes:

The shape of shielded box 1, the shielded box 1 is generally rectangular shaped, and the inside of shielded box 1 is equipped with accommodating chamber 11, and shields The inner wall of case 1 is covered with absorbing material 2 and surrounds accommodating chamber 11, which arranges shape in more convex surfaces in the inner wall of shielded box 1 Arrangement, each convex surface are in spininess.

Antenna 3 is tested, the test antenna 3 is set in accommodating chamber 11, and is fixed on the top of accommodating chamber 11.

Directional aerial 4, the directional aerial 4 are set to outside shielded box 1, and directional aerial 4 connect conducting with test antenna 3, are had Body is to be connected between directional aerial 4 and test antenna 3 by the connection of RF cable 5, and directional aerial 4 connects for that will test antenna 3 The signal of receipts switchs to phasing signal output.

The application mode of this embodiment approximately as:

Test product 6 is placed in accommodating chamber 11, the omnidirectional signal that test product 6 issues receives tested antenna 3, Then the test received omnidirectional signal of antenna 3 is switched to phasing signal output by directional aerial 4, due to the signal strength of phasing signal Much higher than omnidirectional signal, so directly phasing signal can be detected by signal strength detection device at this time, it is hereafter right Testing result, which carries out translation operation, can learn the actual signal intensity of test product 6.

This embodiment, which is advantageous in that, to be converted to orientation for the omnidirectional signal of test product 6 by antenna switch Signal can directly be transmitted to signal strength detection device at a distance and be detected since the signal strength of phasing signal is higher, So without carrying out signal strength detection in the biggish shielded box of volume or darkroom；Compared with prior art, this embodiment is public The antenna switch opened is small in size, light simplicity is taken, and testing cost is greatly saved, also simplifies wireless communications products radio frequency It can test.

In addition, 3/4/5G, WiFi, bluetooth, ZigBee can be applied but be not limited to antenna switch described in the present embodiment Equal wireless tests project can also include the transmission power of wireless device, receive sensitivity, packet loss, uplink and downlink handling capacity etc. The test job of project is actually needed in conventional project and other clients.

As can be seen from Figure 2, second embodiment of the utility model and antenna switch described in one embodiment are basic Identical, difference is: insulating support 7 is equipped with inside the accommodating chamber 11, insulating support 7 and test antenna 3 are positioned opposite, absolutely Edge bracket 7 is for installing fixed test product 6.

The application mode of this embodiment and antenna switch described in one embodiment are almost the same, and difference is Test product 6, which can be placed on insulating support 7, carries out installation fixation, and first benefit is to may insure that test product 6 is each The position detected is identical, so that test can carry out under identical conditions every time, second is advantageous in that insulating support 7 is It is made of isolation materials such as plastics, electromagnetic interference will not be generated in the detection process, provide guarantor for the accuracy of testing result Barrier.

From Fig. 3 and Fig. 4 it is found that the utility model third embodiment and antenna switch described in second embodiment Essentially identical, difference is: the bottom of the accommodating chamber 11 is equipped with insulating support 7, and the top of accommodating chamber 11 is equipped with insulation and stretches Contracting arm 8, insulating telescopic arm 8 and insulating support 7 are positioned opposite, and test antenna 3, insulating telescopic arm 8 are equipped on insulating telescopic arm 8 Test antenna 3 is able to drive toward and away from insulating support 7.

The application mode of this embodiment and antenna switch described in second embodiment are almost the same, and difference is The spacing of test antenna 3 and test product 6 can be adjusted；For example, at for analog signal intensity detecting device and test product 6 In the scene of short distance detection, insulating telescopic arm 8 can be extended down, to reduce between test antenna 3 and test product 6 Distance, the intensity for testing the reception signal of antenna 3 at this time will increase, i.e., directional aerial 4 also can the higher orientation of output signal strength Signal realizes the simulation for closely detecting scene with this；Similar, for analog signal intensity detecting device and test product 6, in the scene that detects at a distance, insulating telescopic arm 8 can up be shunk, with increase test antenna 3 and test product 6 it Between spacing, at this time test antenna 3 receive signal intensity will weaken, i.e., directional aerial 4 also can output signal strength weaken Phasing signal realizes the simulation of remote detection scene with this.

So enable to antenna switch to have the function of scenario simulation by this embodiment, it is more different to meet The demand of test scene, and since insulating telescopic arm 8 is also to be made of isolation material, so will not be in the detection process Electromagnetic interference is generated, so that the accuracy for testing result provides guarantee.

From Fig. 5 and Fig. 6 it is found that antenna switch described in the 4th embodiment of the utility model and third embodiment Essentially identical, difference is: the top of the accommodating chamber 11 is equipped with test antenna 3, and the bottom of accommodating chamber 11 is equipped with insulation branch Frame, insulating support include elevating lever 91 and mounting platform 92 interconnected, and elevating lever 91 is able to drive mounting platform 92 and shifts to Antenna 3 is tested with being moved away from.

The application mode of this embodiment and antenna switch described in third embodiment are almost the same, both can Test antenna 3 is adjusted at a distance from test product 6, the mode of both difference is adjusting is different；For example, it is needing to reduce survey When trying the spacing of antenna 3 and test product 6, mounting platform 92 can be pushed up to move by elevating lever 91, due to test product 6 It is mounted on mounting platform 92, to realize the purpose for reducing test antenna 3 and 6 spacing of test product；Similar, When needing to increase the spacing of test antenna 3 and test product 6, mounting platform 92 can be driven to move down by elevating lever 91, by It is mounted on mounting platform 92 in test product 6, to realize the mesh for increasing test antenna 3 and 6 spacing of test product 's.

This embodiment equally enables to antenna switch to have the function of scenario simulation, is tested with meeting more differences The demand of scene；Wherein elevating lever 91 and mounting platform 92 are also to be made of isolation material, so will not be in detection process Middle generation electromagnetic interference, so that the accuracy for testing result provides guarantee.

In addition, scheme disclosed in the related above-mentioned each embodiment of the utility model, it is also pointed out that the following:

1,1 main function of shielded box is to prevent electromagnetic interference to test environmental effects, so using that can shield electricity The material of magnetic disturbance is made；Wherein, metal material is the preferred material for making shielded box 1, for example using the system such as copper, steel plate At metallic shield case just there is preferable shielding properties；

2, so-called absorbing material 2, which refers to, can absorb or substantially weaken the electromagnetic wave energy for projecting its surface, to subtract A kind of material of the interference of few electromagnetic wave；On engineer application, except requiring absorbing material to have in broad frequency band to electromagnetic wave Outside high absorptivity, also require it that there are the performances such as light weight, heatproof, moisture-proof, anticorrosive；Wherein, by the element of absorbing material 2 Classification approximately as:

Carbon system absorbing material, such as: graphene, graphite, carbon black, carbon fiber, carbon nanotube；

Iron series absorbing material, such as: ferrite, magnetic ferrum nano material；

Ceramics system absorbing material, such as: silicon carbide；

Other kinds of material, such as: conducting polymer, chiral material, plasma material；

3, the shape of absorbing material 2 can also use other modes, for example institute in addition to spininess described in above-described embodiment State absorbing material 2 the shielded box 1 inner wall is wave-shaped, planar, multi-concave arrangement shape or more convex surfaces arrangement shape arrangement； Wherein, multi-concave arrangement shape be refer to a plane on have multiple concave surfaces, for example in one plane be equipped with nine concave surfaces, nine A concave surface is in nine grids form arranged, and such structure just belongs to multi-concave arrangement shape；And more convex surface arrangement shapes are references one Have multiple convex surfaces in a plane, for example a plane is equipped with nine convex surfaces, and nine convex surfaces are in nine grids form arranged, Such structure just belongs to more convex surface arrangement shapes；

4, the effect for testing antenna 3 is the signal for receiving test product 6 and issuing, so type, the shape of test antenna 3 are equal This is not influenced and realizes this purpose, therefore can select suitable antenna as test antenna 3 according to actual needs, for example can be described Testing antenna 3 is directional aerial, near field antenna or array antenna；Wherein, when testing antenna 3 is directional aerial, substantially it is The inside and outside of shielded box 1 is respectively provided with a directional aerial.

The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit Decorations are also considered as the protection scope of the utility model.

Claims

1. a kind of antenna switch, which is characterized in that including,

Shielded box, the inside of the shielded box are equipped with accommodating chamber, and the inner wall of the shielded box is covered with described in absorbing material encirclement Accommodating chamber；

Antenna is tested, the test antenna is set in the accommodating chamber；

And directional aerial, the directional aerial are set to outside the shielded box, the directional aerial is connect with the test antenna Conducting, the directional aerial are used to switching to the test antenna received signal into phasing signal output.

2. antenna switch according to claim 1, which is characterized in that the shielded box is metallic shield case.

3. antenna switch according to claim 1, which is characterized in that the absorbing material is in the shielded box Wall is wave-shaped, planar, multi-concave arranges shape or more convex surfaces arrangement shape arrangement.

4. antenna switch according to claim 3, which is characterized in that the absorbing material is in the shielded box Wall is in spininess in more convex surfaces arrangement shape arrangement, each convex surface.

5. antenna switch according to claim 1, which is characterized in that the directional aerial and the test antenna it Between pass through RF cable connection conducting.

6. antenna switch according to claim 1, which is characterized in that the test antenna is directional aerial, near field Antenna or array antenna.

7. antenna switch according to claim 1, which is characterized in that insulating support is equipped with inside the accommodating chamber, The insulating support is for installing fixed test product.

8. antenna switch according to claim 7, which is characterized in that the insulating support and the test antenna phase To arrangement.

9. antenna switch according to claim 8, which is characterized in that the bottom of the accommodating chamber is equipped with the insulation The top of bracket, the accommodating chamber is equipped with insulating telescopic arm, and the insulating telescopic arm and the insulating support are positioned opposite, described The test antenna is installed, the insulating telescopic arm is able to drive the test antenna toward and away from institute on insulating telescopic arm State insulating support.

10. antenna switch according to claim 8, which is characterized in that the top of the accommodating chamber is equipped with the survey Antenna is tried, the bottom of the accommodating chamber is equipped with the insulating support, and the insulating support includes elevating lever interconnected and peace Assembling platform, the elevating lever are able to drive the mounting platform toward and away from the test antenna.