CN219842493U - Device for testing communication antenna - Google Patents
Device for testing communication antenna Download PDFInfo
- Publication number
- CN219842493U CN219842493U CN202223600940.3U CN202223600940U CN219842493U CN 219842493 U CN219842493 U CN 219842493U CN 202223600940 U CN202223600940 U CN 202223600940U CN 219842493 U CN219842493 U CN 219842493U
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- antenna
- pcb
- signal wire
- sma connector
- probe
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 238000004891 communication Methods 0.000 title claims abstract description 21
- 239000000523 sample Substances 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 56
- 238000003466 welding Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- FPWNLURCHDRMHC-UHFFFAOYSA-N 4-chlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1 FPWNLURCHDRMHC-UHFFFAOYSA-N 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a device for testing a communication antenna, which comprises an antenna probe, an SMA connector, a PCB and a signal wire, wherein the SMA connector is arranged on the antenna probe; the SMA connector is arranged on one side of the PCB; the signal wire is arranged on one side of the PCB, which is far away from the SMA connector; the antenna probe is arranged on one side of the PCB provided with the SMA connector; one end of the signal wire is connected with the SMA connector, and the other end of the signal wire is connected with one end of the antenna probe; the other end of the antenna probe is used for connecting an antenna; the device for antenna test is composed of the antenna probe, the SMA interface, the PCB and the signal wire, and the SMA connector and the signal wire are respectively arranged on two sides of the PCB, so that the welding direction of the SMA connector is opposite to the direction of the surface where the signal wire is located, the impedance on the PCB can reach 50 ohms more easily, the real performance of the antenna can be reflected when the antenna is tested at high frequency, and the requirement of a user for testing the real performance of the antenna at high frequency is met.
Description
Technical Field
The utility model relates to the technical field of communication, in particular to a device for testing a communication antenna.
Background
With the continuous development of antenna technology, the requirements of users on antenna performance are also increasing. The conventional antenna only needs to test the consistency of the low-frequency band S11 (which is one of the S parameters and represents the dB value and the impedance characteristic of the return loss characteristic, which are generally seen by a network analyzer). With the improvement of the performance requirement of the antenna, the test requirement for the antenna is also improved, such as the requirement for testing the high-frequency real performance of the antenna. However, the current antenna test device cannot effectively test the high-frequency real performance of the antenna, and cannot meet the current test requirement for the antenna performance.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a device for testing a communication antenna is provided, which meets the test requirement of testing the high-frequency real performance of the antenna.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an apparatus for communication antenna testing includes an antenna probe, an SMA joint, a PCB, and a signal wire;
the SMA connector is arranged on one side of the PCB;
the signal wire is arranged on one side of the PCB, which is far away from the SMA connector;
the antenna probe is arranged on one side of the PCB provided with the SMA connector;
one end of the signal wire is connected with the SMA connector, and the other end of the signal wire is connected with one end of the antenna probe;
the other end of the antenna probe is used for being connected with an antenna.
Further, the signal line includes a first transmission section and a second transmission section;
one end of the first transmission section is connected with the SMA joint;
the other end of the first transmission section is coupled with one end of the second transmission section;
the other end of the second transmission section is connected with the one end of the antenna probe.
Further, the impedance of the first transmission segment is 50 ohms.
Further, the first transmission segment is rectangular-like.
Further, the antenna probe is a spring needle.
Further, the PCB includes a transmission region;
the signal line is arranged in the transmission area.
Further, the PCB includes a ground region;
the grounding area is used for shielding external signals.
Further, a through hole is formed in the PCB.
The utility model has the beneficial effects that: the device for antenna test is composed of the antenna probe, the SMA interface, the PCB and the signal wire, and the SMA connector and the signal wire are respectively arranged on two sides of the PCB, so that the welding direction of the SMA connector is opposite to the direction of the surface where the signal wire is located, the impedance on the PCB can reach 50 ohms more easily, the real performance of the antenna can be reflected when the antenna is tested at high frequency, and the requirement of a user for testing the real performance of the antenna at high frequency is met.
Drawings
Fig. 1 is a front view of a device for testing a communication antenna according to an embodiment of the present utility model;
FIG. 2 is a rear view of an apparatus for testing a communication antenna in accordance with an embodiment of the present utility model;
description of the reference numerals:
1. an antenna probe; 2. an SMA joint; 3. a PCB; 4. a signal line; 41. a first transmission section; 42. and a second transmission segment.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an apparatus for testing a communication antenna includes an antenna probe, an SMA joint, a PCB, and a signal line;
the SMA connector is arranged on one side of the PCB;
the signal wire is arranged on one side of the PCB, which is far away from the SMA connector;
the antenna probe is arranged on one side of the PCB provided with the SMA connector;
one end of the signal wire is connected with the SMA connector, and the other end of the signal wire is connected with one end of the antenna probe;
the other end of the antenna probe is used for being connected with an antenna.
From the above description, the beneficial effects of the utility model are as follows: the device for antenna test is composed of the antenna probe, the SMA interface, the PCB and the signal wire, and the SMA connector and the signal wire are respectively arranged on two sides of the PCB, so that the welding direction of the SMA connector is opposite to the direction of the surface where the signal wire is located, the impedance on the PCB can reach 50 ohms more easily, the real performance of the antenna can be reflected when the antenna is tested at high frequency, and the requirement of a user for testing the real performance of the antenna at high frequency is met.
Further, the signal line includes a first transmission section and a second transmission section;
one end of the first transmission section is connected with the SMA joint;
the other end of the first transmission section is coupled with one end of the second transmission section;
the other end of the second transmission section is connected with the one end of the antenna probe.
As can be seen from the above description, the first transmission section and the second transmission section form the signal line, so that after the first transmission section receives the signal input by the SMA connector, the signal is transmitted to the second transmission section through the matching coupling relationship between the first transmission section and the second transmission section, and then the antenna probe contacts the antenna to radiate the signal, so that the radiation performance of the antenna can be effectively tested.
Further, the impedance of the first transmission segment is 50 ohms.
As is apparent from the above description, by setting the impedance of the first transmission end to 50 ohms, the authenticity of the high-frequency performance of the antenna can be reflected to a great extent.
Further, the first transmission segment is rectangular-like.
As can be seen from the above description, by setting the first transmission section to be rectangular-like, the signal can be transmitted in a straight path, and the impedance of the PCB can be more easily made to reach 50 ohms, thereby improving the high frequency test effect of the antenna.
Further, the antenna probe is a spring needle.
According to the above description, the spring needle is adopted as the antenna probe, so that the device and the antenna are more conveniently connected in a contact type connection mode, and the testing efficiency is improved.
Further, the PCB includes a transmission region;
the signal line is arranged in the transmission area.
As can be seen from the above description, by providing the transmission region on the PCB and disposing the signal line in the transmission region, the signal line is prevented from being disturbed, so that the impedance of the PCB can be more easily up to 50 ohms, thereby improving the high frequency test effect of the antenna.
Further, the PCB includes a ground region;
the grounding area is used for shielding external signals.
As is apparent from the above description, by providing the ground region on the PCB and grounding the region other than the signal line, external signals can be shielded, so that the impedance of the PCB can be more easily made to reach 50 ohms, thereby improving the high frequency test effect of the antenna.
Further, a through hole is formed in the PCB.
From the above description, it is known that the through holes are formed on the PCB, so that the PCB can be conveniently fixed, which is more beneficial to test.
The device for testing a communication antenna according to the embodiment can be suitable for accurate high-frequency testing of antennas of intelligent devices such as mobile phones and tablets, and is described in the following by a specific embodiment:
example 1
Referring to fig. 1 and 2, an apparatus for testing a communication antenna includes an antenna probe 1, an SMA joint 2, a PCB3 and a signal wire 4;
the SMA connector 2 is arranged on one side of the PCB 3; the signal wire 4 is arranged on one side of the PCB3 away from the SMA connector 2; the antenna probe 1 is arranged on one side of the PCB3 provided with the SMA connector 2; one end of the signal wire 4 is connected with the SMA connector 2, and the other end of the signal wire 4 is connected with one end of the antenna probe 1; the SMA connector 2 is a 5PIN-SMA connector 2, and the welding direction of the SMA connector 2 is opposite to the direction of the surface where the signal wire 4 is positioned as much as possible in the design process; the other end of the antenna probe 1 is used for connecting an antenna; the PCB3 adopts a plate with a low Dk (dielectric constant) value and a low Df (dielectric loss) value, so that the impedance of the PCB3 is more approximate to 50 ohms; in an alternative embodiment, the antenna probe 1 is a pogo pin (pogo pin);
wherein the signal line 4 comprises a first transmission section 41 and a second transmission section 42; one end of the first transmission section 41 is connected to the SMA joint 2; the other end of the first transmission section 41 is coupled with one end of the second transmission section 42; the other end of the second transmission section 42 is connected to the one end of the antenna probe 1; in an alternative embodiment, the first transmission section 41 is rectangular, so that the signal line 4 can be ensured to transmit along a straight line as much as possible, and the impedance of the first transmission section 41 can reach 50 ohms more easily;
the PCB3 includes a transmission region and a ground region; the signal line 4 is arranged in the transmission area, and the areas except the signal line 4 are grounded to form the grounding area, and the grounding area is used for shielding external signals; the PCB3 is provided with a through hole, and the PCB3 can be fixed through the through hole;
the specific test mode of the device for testing the communication antenna is as follows:
fixing the PCB3, connecting the SMA connector 2 with an external signal wire 4, and contacting the antenna probe 1 with an antenna to be tested; during testing, after signals are input by the SMA connector 2 and transmitted to the first transmission section 41 of the signal wire 4, the signals pass through the first transmission section 41 with the amplitude of 50 ohms and reach the second transmission section 42 of the signal wire 4 through a coupling matching circuit, and finally the signals are transmitted to the antenna probe 1 through the second transmission section 42, and the antenna probe 1 radiates the signals by contacting an antenna to be tested; the tester judges the performance of the antenna according to the radiation of the antenna, so that a test engineer can quickly lock the effective waveform, unnecessary test points are eliminated, and the test efficiency is improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (8)
1. An apparatus for testing a communication antenna, comprising an antenna probe, an SMA joint, a PCB and a signal wire;
the SMA connector is arranged on one side of the PCB;
the signal wire is arranged on one side of the PCB, which is far away from the SMA connector;
the antenna probe is arranged on one side of the PCB provided with the SMA connector;
one end of the signal wire is connected with the SMA connector, and the other end of the signal wire is connected with one end of the antenna probe;
the other end of the antenna probe is used for being connected with an antenna.
2. The apparatus for communication antenna testing as defined in claim 1, wherein the signal line comprises a first transmission segment and a second transmission segment;
one end of the first transmission section is connected with the SMA joint;
the other end of the first transmission section is coupled with one end of the second transmission section;
the other end of the second transmission section is connected with the one end of the antenna probe.
3. An apparatus for communication antenna testing according to claim 2, wherein the impedance of said first transmission segment is 50 ohms.
4. An apparatus for communication antenna testing according to claim 2, wherein said first transmission segment is rectangular-like.
5. An apparatus for communication antenna testing according to claim 1, wherein said antenna probe is a pogo pin.
6. An apparatus for communication antenna testing according to claim 1, wherein said PCB includes a transmission region;
the signal line is arranged in the transmission area.
7. An apparatus for communication antenna testing according to claim 1, wherein said PCB includes a ground region;
the grounding area is used for shielding external signals.
8. An apparatus for testing a communication antenna according to claim 1, wherein the PCB is provided with a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223600940.3U CN219842493U (en) | 2022-12-29 | 2022-12-29 | Device for testing communication antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223600940.3U CN219842493U (en) | 2022-12-29 | 2022-12-29 | Device for testing communication antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219842493U true CN219842493U (en) | 2023-10-17 |
Family
ID=88302038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223600940.3U Active CN219842493U (en) | 2022-12-29 | 2022-12-29 | Device for testing communication antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219842493U (en) |
-
2022
- 2022-12-29 CN CN202223600940.3U patent/CN219842493U/en active Active
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| GR01 | Patent grant |