CN212723113U - Simple antenna gain and frequency test system - Google Patents
Simple antenna gain and frequency test system Download PDFInfo
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- CN212723113U CN212723113U CN202021451363.4U CN202021451363U CN212723113U CN 212723113 U CN212723113 U CN 212723113U CN 202021451363 U CN202021451363 U CN 202021451363U CN 212723113 U CN212723113 U CN 212723113U
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Abstract
The utility model discloses a simple antenna gain and frequency testing system, which comprises a first placing platform, a second placing platform and a first channel arranged between the first placing platform and the second placing platform; the first placing platform, the second placing platform and the first channel are integrally formed, and the whole cross section of the first placing platform, the second placing platform and the first channel is of a U-shaped structure; the first placing platform and the second placing platform are hollow inside and communicated with the first channel, and the first placing platform and the second placing platform further comprise a main control MCU, a test antenna module electrically connected with the main control MCU, a first lifting mechanism, a tested antenna module and a power supply module for supplying power to the whole system. The utility model discloses a test antenna module has replaced the test means of conventional pulley cooperation sheetmetal, only needs first elevating system drive test antenna module to accomplish a elevating movement, can accurately record gain and the frequency of being surveyed antenna module, improves efficiency of software testing, and is convenient for arrange, with low costs, the commonality is strong.
Description
Technical Field
The utility model relates to an antenna gain and frequency test technical field especially relate to a test system of plain type antenna gain and frequency.
Background
At present, in a conventional method for testing the gain and frequency of an antenna, a sliding rail is mainly erected in a microwave darkroom, a metal sheet is placed on the sliding rail, and in the process of moving the metal sheet back and forth, a signal processing board of the antenna captures the doppler frequency generated when the metal sheet moves, so that the receiving gain or the module gain of the antenna is tested. However, the following disadvantages exist with this test method:
1) the metal sheet is inevitably shaken in the moving process due to the influence of the motor precision on the movement of the metal sheet, and the result caused by shaking is that RCS (radar scattering cross section) is not a fixed and unchangeable value in the moving process of the metal sheet, so that the test result is influenced, and the reliability of the measured result is low;
2) the test method needs to be carried out in a microwave darkroom and is limited by sites, test time and the like, and the universality is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a test system of plain type antenna gain and frequency, this system adopt test antenna module to replace the test means of conventional pulley cooperation sheetmetal, only need first elevating system drive test antenna module to accomplish a elevating movement, can accurately record gain and the frequency of being surveyed antenna module, improve efficiency of software testing, and do not do the restriction to the environment of test, be convenient for arrange, with low costs, the commonality is strong.
In order to realize the purpose, the following technical scheme is adopted:
a simple antenna gain and frequency test system comprises a first placing platform, a second placing platform and a first channel arranged between the first placing platform and the second placing platform; the first placing platform, the second placing platform and the first channel are integrally formed, and the whole cross section of the first placing platform, the second placing platform and the first channel is of a U-shaped structure; the first placing platform and the second placing platform are hollow and are communicated with the first channel, and the first placing platform and the second placing platform further comprise a main control MCU, a test antenna module electrically connected with the main control MCU, a first lifting mechanism, a tested antenna module and a power supply module for supplying power to the whole system; the measured antenna module is fixedly arranged at the top of the first placing platform, and the first lifting mechanism is fixedly arranged at the top of the second placing platform; the first lifting mechanism is also in driving connection with a clamping and fixing mechanism, and the test antenna module is arranged on the clamping and fixing mechanism; the main control MCU is used for controlling the test antenna module to ascend and descend through the first ascending and descending mechanism, and then testing the gain and the frequency of the tested antenna module through the test antenna module.
Furthermore, the test antenna module comprises a radio frequency module electrically connected with the main control MCU, and a switching module, a mixer and a frequency divider connected between the main control MCU and the radio frequency module.
Further, the radio frequency module comprises a radio frequency chip, and a transmitting antenna and a receiving antenna which are connected with the radio frequency chip.
Furthermore, a reflective metal plate is arranged inside each of the first placing platform and the second placing platform.
Furthermore, the system for testing the gain and the frequency of the simple antenna further comprises a display module electrically connected with the main control MCU.
Furthermore, the tested antenna module comprises an antenna body and a signal processing board connected with the antenna body.
Further, the chip model of the master control MCU is GD32F 350.
Adopt above-mentioned scheme, the beneficial effects of the utility model are that:
the system adopts the test antenna module to replace the conventional test means that the pulley is matched with the metal sheet, only the first lifting mechanism is needed to drive the test antenna module to complete one-time lifting motion, the gain and the frequency of the antenna module to be tested can be accurately measured, the test efficiency is improved, the test environment is not limited, the arrangement is convenient, the cost is low, and the universality is high.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a schematic structural view of the first placement platform, the second placement platform, and the first channel of the present invention;
fig. 3 is a circuit diagram of a mixer of the present invention;
wherein the figures identify the description:
1-a first placement platform; 2-a second placement platform;
3 — a first channel; 4, master control MCU;
5-testing the antenna module; 6-a first lifting mechanism;
7-the antenna module under test; 8, a power supply module;
9-a reflective metal plate; 10-a display module;
51-a radio frequency module; 52-a switching module;
53-a mixer; 54-a frequency divider;
511-radio frequency chip; 512-a transmitting antenna;
513 — receive antenna.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, the present invention provides a simplified antenna gain and frequency testing system, which includes a first placing platform 1, a second placing platform 2, and a first channel 3 disposed between the first placing platform 1 and the second placing platform 2; the first placing platform 1, the second placing platform 2 and the first channel 3 are integrally formed, and the whole cross section of the first placing platform is of a U-shaped structure; the first placing platform 1 and the second placing platform 2 are hollow inside and are communicated with the first channel 3, and the first placing platform further comprises a main control MCU4, a test antenna module 5 electrically connected with the main control MCU4, a first lifting mechanism 6, a tested antenna module 7 and a power supply module 8 for supplying power to the whole system; the measured antenna module 7 is fixedly arranged at the top of the first placing platform 1, and the first lifting mechanism 6 is fixedly arranged at the top of the second placing platform 2; the first lifting mechanism 6 is also in driving connection with a clamping and fixing mechanism, and the test antenna module 5 is arranged on the clamping and fixing mechanism; the main control MCU4 is used to control the test antenna module 5 to ascend and descend via the first ascending and descending mechanism 6, so as to test the gain and frequency of the antenna module 7 to be tested via the test antenna module 5.
The test antenna module 5 includes a radio frequency module 51 electrically connected to the main control MCU4, and a switching module 52, a mixer 53 and a frequency divider 54 connected between the main control MCU4 and the radio frequency module 51; the radio frequency module 51 comprises a radio frequency chip 511, and a transmitting antenna 512 and a receiving antenna 513 connected with the radio frequency chip 511; a reflective metal plate 9 is arranged in each of the first placing platform 1 and the second placing platform 2; the simple antenna gain and frequency test system further comprises a display module 10 electrically connected with the main control MCU 4; the tested antenna module 7 comprises an antenna body and a signal processing board connected with the antenna body; the chip model of the master control MCU4 is GD32F 350.
The utility model discloses the theory of operation:
in this embodiment, the first lifting mechanism 6 may be a linear motor module, a lifting cylinder module, or other lifting mechanisms capable of driving the test antenna module 5 to lift, which is not limited to this; the clamping and fixing mechanism is in driving connection with the first lifting mechanism 6 and can comprise an installation frame (made of non-conductive materials) in driving connection with the first lifting mechanism 6 and a clamp arranged on the installation frame, and the test antenna module 5 is arranged in the clamp and can clamp and fix the test antenna module 5 to avoid random shaking; in this embodiment, the lifting height of the test antenna module 5 is 12mm, and the first lifting platform and the second lifting platform are both internally provided with a reflective metal plate 9, and the two reflective metal plates 9 are arranged in an inclined manner, so that the antenna module 7 to be tested and the test antenna module 5 can receive electromagnetic waves transmitted by each other to the greatest extent, and the test precision is further improved; the test antenna module 5 can test the frequency of the antenna module 7 to be tested, the frequency range is 23.7GHz-25.0GHz, meanwhile, the test antenna module 5 can also test the receiving sensitivity or gain of the antenna module 7 to be tested, which can generate a low-frequency sine wave signal of 0MHz-12.5MHz, and then obtain a Doppler signal of fixed frequency through the frequency mixer 53 with 24GHz, thereby realizing the test of gain; the display module 10 may be an LCD, and can display the test result (frequency or gain value) for easy viewing; the switching module 52 can switch the operation mode of the test antenna module 5, that is, receive the signal transmitted by the antenna module 7 under test (frequency measurement) or transmit the doppler signal to the antenna module 7 under test (gain measurement); the antenna module 7 to be tested may be an integral module with an antenna body and a signal processing function, or may be only different antenna bodies equipped with the same signal processing board, so as to indirectly test the gain of the antenna body.
The specific working process is as follows:
1) fixedly arranging the tested antenna module 7 on the top of the first placing platform 1, and fixedly installing and fixing the tested antenna module 5 on the clamping and fixing mechanism;
2) after detecting that the antenna module 7 to be tested is fixed, the main control MCU4 supplies power to the antenna module 7 to be tested through the power module 8;
3) the master control MCU4 sends a command for entering debugging to the tested antenna module 7 through the serial port, the tested antenna module 7 responds to confirm the test through the serial port, and the test starts;
4) firstly, testing whether the frequency of a signal transmitted by the tested antenna module 7 is within a qualified range, and if the frequency transmitted by the tested antenna module 7 is within the qualified range, starting the test of the next stage; if the frequency is not within the range, the test failure is displayed on the display module 10, and the signal frequency transmitted by the antenna module 7 to be tested is displayed;
5) after the frequency test is passed, the main control MCU4 controls the test antenna module 5 to switch the working mode through the switching module 52, and starts to transmit a CW wave with doppler frequency to the antenna module 7 to be tested (meanwhile, the main control MCU4 drives the test antenna module 5 to move up and down within 12mm through the first lifting mechanism 6), and the signal processing board of the antenna module 7 to be tested starts to sample the CW wave;
6) after the test antenna module 5 is lifted, the main control MCU4 sends an instruction to the antenna module 7 to be tested, the antenna module 7 to be tested sends data received during the movement of the test antenna module 5 to the main control MCU4, and the main control MCU4 displays the received data on the display module 10;
7) if the antenna module 7 to be tested is an integral module, the correction is performed according to the data of the antenna body, and if the antenna body is tested (different antenna bodies are matched with the same signal processing board), whether the antenna body is qualified or not is determined according to the numerical value displayed by the display module 10.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A simple antenna gain and frequency test system comprises a first placing platform, a second placing platform and a first channel arranged between the first placing platform and the second placing platform; the first placing platform, the second placing platform and the first channel are integrally formed, and the whole cross section of the first placing platform, the second placing platform and the first channel is of a U-shaped structure; the first placing platform and the second placing platform are hollow and are communicated with the first channel, and the first placing platform and the second placing platform are characterized by further comprising a main control MCU, a test antenna module electrically connected with the main control MCU, a first lifting mechanism, a tested antenna module and a power supply module for supplying power to the whole system; the measured antenna module is fixedly arranged at the top of the first placing platform, and the first lifting mechanism is fixedly arranged at the top of the second placing platform; the first lifting mechanism is also in driving connection with a clamping and fixing mechanism, and the test antenna module is arranged on the clamping and fixing mechanism; the main control MCU is used for controlling the test antenna module to ascend and descend through the first ascending and descending mechanism, and then testing the gain and the frequency of the tested antenna module through the test antenna module.
2. The system of claim 1, wherein the testing antenna module comprises a radio frequency module electrically connected to the main control MCU, and a switching module, a mixer and a frequency divider connected between the main control MCU and the radio frequency module.
3. The system for testing the gain and frequency of a simplified antenna as claimed in claim 2, wherein the rf module comprises an rf chip, and a transmitting antenna and a receiving antenna connected to the rf chip.
4. The system as claimed in claim 1, wherein a reflective metal plate is disposed inside each of the first and second platforms.
5. The system as claimed in claim 1, further comprising a display module electrically connected to the MCU.
6. The system as claimed in claim 1, wherein the antenna module under test includes an antenna body and a signal processing board connected to the antenna body.
7. The system as claimed in claim 1, wherein the main control MCU has a chip type GD32F 350.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021451363.4U CN212723113U (en) | 2020-07-21 | 2020-07-21 | Simple antenna gain and frequency test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021451363.4U CN212723113U (en) | 2020-07-21 | 2020-07-21 | Simple antenna gain and frequency test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212723113U true CN212723113U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021451363.4U Active CN212723113U (en) | 2020-07-21 | 2020-07-21 | Simple antenna gain and frequency test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212723113U (en) |
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2020
- 2020-07-21 CN CN202021451363.4U patent/CN212723113U/en active Active
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