CN212723133U - Radiation stray testing device and electronic equipment - Google Patents
Radiation stray testing device and electronic equipment Download PDFInfo
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- CN212723133U CN212723133U CN202021310149.7U CN202021310149U CN212723133U CN 212723133 U CN212723133 U CN 212723133U CN 202021310149 U CN202021310149 U CN 202021310149U CN 212723133 U CN212723133 U CN 212723133U
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Abstract
The utility model provides a radiation stray testing arrangement and electronic equipment relates to test technical field. The radiation stray testing device comprises electronic equipment and an auxiliary filtering unit, wherein the electronic equipment comprises a plurality of testing circuits, a switching unit and a plurality of testing antennas, and the plurality of testing circuits are in one-to-one correspondence with the plurality of testing antennas. When a first test circuit in the plurality of test circuits is electrically connected with the input end of the auxiliary filter unit through the switching unit and the output end of the auxiliary filter unit is connected with a first test antenna point corresponding to the first test circuit, the switching unit, the auxiliary filter unit and the first test antenna form a first test path; carrying out radiation stray measurement on the first test channel by using a tester to obtain a first test result; and judging the radiation stray source according to the first test result. The test of radiation stray can be realized by adding the filtering unit, the interference brought by other equipment is avoided when the test is developed and debugged, and the debugging cost is also saved.
Description
Technical Field
The utility model relates to a test technical field particularly, relates to a radiation stray testing arrangement and electronic equipment.
Background
Before the electronic device enters the market, the emission spurious certification is necessary. The 3GPP (3rd Generation Partnership Project) has a clear specification for the stray, and the stray generated by the electronic device cannot exceed a certain limit value, so as to avoid affecting other devices.
At present, when electronic equipment is developed and debugged, a plurality of debugging methods are available to locate the sources of strays. However, the second device is generally needed to determine whether the stray signal comes from the antenna path itself or the interference introduced by other components of the electronic device, and because the second device and the electronic device are in the same darkroom and the same turntable, it cannot be excluded that the second device will cause interference to the electronic device. Meanwhile, an additional second device needs to be equipped for development and debugging, and the development and debugging cost of the electronic device is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a spurious testing arrangement of radiation and electronic equipment just can realize the spurious test of radiation through electronic equipment self, when the development debugging, has avoided the interference that other equipment brought, has also practiced thrift the debugging cost.
In a first aspect, an embodiment of the present invention provides a radiation stray testing apparatus, including an electronic device and an auxiliary filtering unit, where the electronic device includes a plurality of test circuits, a switching unit, and a plurality of test antennas, and the plurality of test circuits correspond to the plurality of test antennas one to one;
the plurality of test antennas comprise a first test antenna, and when a first test circuit in the plurality of test circuits is electrically connected with the input end of the auxiliary filtering unit through the switching unit and the output end of the auxiliary filtering unit is electrically connected with a first test antenna corresponding to the first test circuit, the switching unit, the auxiliary filtering unit and the first test antenna form a first test path;
utilizing a tester to perform radiation stray measurement on the first test access to obtain a first test result;
and judging a radiation stray source according to the first test result.
In an alternative embodiment, the electronic device further comprises a first test port and a second test port;
when the tester is used for testing the first test access, the switching unit is electrically connected with the input end of the auxiliary filtering unit through the first test port, and the output end of the auxiliary filtering unit is electrically connected with the first test antenna through the second test port.
In an optional embodiment, the plurality of test antennas include a second test antenna, and when a second test circuit in the plurality of test circuits is electrically connected to the input end of the auxiliary filtering unit through the switching unit, and the output end of the auxiliary filtering unit is electrically connected to a second test antenna corresponding to the second test circuit, the switching unit, the auxiliary filtering unit, and the second test antenna form a second test path;
carrying out radiation stray measurement on the second test access by using the tester to obtain a second test result;
and judging the radiation stray source according to the second test result.
In an alternative embodiment, the electronic device further comprises a first test port and a second test port;
when the tester is used for testing the second test access, the switching unit is electrically connected with the input end of the auxiliary filtering unit through the first test port, and the output end of the auxiliary filtering unit is electrically connected with the second test antenna through the second test port.
In an alternative embodiment, the switching unit comprises one of a multi-pole, multi-throw switch and a multiplexer.
In an alternative embodiment, the auxiliary filtering unit is a low-pass filter.
In a second aspect, an embodiment of the present invention provides an electronic device, including a plurality of test circuits, a switching unit, and a plurality of test antennas, where the plurality of test circuits correspond to the plurality of test antennas one to one;
the plurality of test antennas comprise a first test antenna, and when a first test circuit in the plurality of test circuits is electrically connected with the input end of the auxiliary filtering unit through the switching unit and the output end of the auxiliary filtering unit is electrically connected with a first test antenna corresponding to the first test circuit, the switching unit, the auxiliary filtering unit and the first test antenna form a first test path;
utilizing a tester to perform radiation stray measurement on the first test access to obtain a first test result;
and judging a radiation stray source according to the first test result.
In an alternative embodiment, the electronic device further comprises a first test port and a second test port;
when the tester is used for testing the first test access, the switching unit is electrically connected with the input end of the auxiliary filtering unit through the first test port, and the output end of the auxiliary filtering unit is electrically connected with the first test antenna through the second test port.
In an optional embodiment, the plurality of test antennas include a second test antenna, and when a second test circuit in the plurality of test circuits is electrically connected to the input end of the auxiliary filtering unit through the switching unit, and the output end of the auxiliary filtering unit is electrically connected to a second test antenna corresponding to the second test circuit, the switching unit, the auxiliary filtering unit, and the second test antenna form a second test path;
carrying out radiation stray measurement on the second test access by using the tester to obtain a second test result;
and judging the radiation stray source according to the second test result.
In an alternative embodiment, the electronic device further comprises a first test port and a second test port;
when the tester is used for testing the second test access, the switching unit is electrically connected with the input end of the auxiliary filtering unit through the second test port, and the output end of the auxiliary filtering unit is electrically connected with the second test antenna through the second test port.
The utility model provides a spurious testing arrangement of radiation and electronic equipment's beneficial effect is: the radiation stray testing device comprises electronic equipment and an auxiliary filtering unit, wherein the electronic equipment comprises a plurality of testing circuits, a switching unit and a plurality of testing antennas, and the plurality of testing circuits are in one-to-one correspondence with the plurality of testing antennas. When a first test circuit in the plurality of test circuits is electrically connected with the input end of the auxiliary filter unit through the switching unit and the output end of the auxiliary filter unit is electrically connected with a first test antenna corresponding to the first test circuit, the switching unit, the auxiliary filter unit and the first test antenna form a first test path; measuring the first test channel by using a tester to obtain a first test result; and judging the radiation stray source according to the first test result. Therefore, by additionally arranging the auxiliary filtering unit and the switching function of the switching unit, the interference from the test circuit or other circuits in the electronic equipment can be quickly positioned without the help of additional second equipment, the positioning time of the radiation stray root cause can be greatly shortened, the interference of the second equipment on the electronic equipment is avoided, and the debugging cost is also reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a radiation stray testing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another radiation stray testing apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another radiation stray testing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another radiation stray testing apparatus according to an embodiment of the present invention.
Icon: 100-a radiation stray test device; 110-an electronic device; 111-a first test circuit; 112-a second test circuit; 113-a switching unit; 114-a first test antenna; 115-a second test antenna; 116-a first test port; 117 — a second test port; 120-auxiliary filtering unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and for simplicity of description, and do not indicate or imply that the equipment or components that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, a schematic diagram of an implementable structure of a radiation stray testing apparatus 100 according to the present embodiment is shown. The radiated spurious test apparatus 100 includes an electronic device 110 and an auxiliary filtering unit 120, where the electronic device 110 includes a plurality of test circuits, a switching unit 113, and a plurality of test antennas, and the plurality of test circuits correspond to the plurality of test antennas one to one.
In this embodiment, the plurality of test antennas include a first test antenna 114, and when a first test circuit 111 of the plurality of test circuits is electrically connected to the input terminal of the auxiliary filter unit 120 through the switch unit 113, and the output terminal of the auxiliary filter unit 120 is electrically connected to the first test antenna 114 corresponding to the first test circuit 111, the switch unit 113, the auxiliary filter unit 120, and the first test antenna 114 form a first test path. Carrying out radiation stray measurement on the first test channel by using a tester to obtain a first test result; and judging the radiation stray source according to the first test result.
It will be appreciated that in the first test path, the first test circuit 111 is used to generate a first radio frequency signal; the auxiliary filtering unit 120 is configured to filter out harmonic clutter in the first radio frequency signal; the switching unit 113 has a switching function, and the switching unit 113 enables the first test circuit 111 to communicate with the auxiliary filtering unit 120 in response to a user switching operation; the first test antenna 114 is configured to receive the first radio frequency signal processed by the auxiliary filtering unit 120, and perform electromagnetic transmission on the processed first radio frequency signal; the tester is used for detecting the first radio frequency signal after the air processing to obtain a first test result.
If the first test result indicates that the radiation spurs of the electronic device 110 exceed the standard, the first test circuit 111 will not be a source of the spurs due to the auxiliary filtering unit 120 filtering out the harmonic spurs in the first rf signal, and the source of the spurs comes from other circuits inside the electronic device 110. Other circuits inside the electronic device 110 may be a nonlinear circuit inside the electronic device 110, a TVS (Transient Voltage Suppressor), and the like. If the first test result indicates that the radiation stray of the electronic device 110 is not out of the limits, it indicates that other circuits inside the electronic device 110 are not generating stray.
Under the condition that it is determined that no spurious is generated in other circuits inside the electronic device 110, if it is desired to test the first test circuit 111, the spurious is not generated, the auxiliary filtering unit 120 may be removed, and the first test circuit 111 and the first test antenna 114 form a new first test path through the switching unit 113, that is, the first test circuit 111 is electrically connected to the first test antenna 114 through the switching unit 113. And measuring the new first test channel by using the tester to obtain a third test result, and judging whether the first test circuit 111 generates radiation stray according to the third test result. If the third test result indicates that the radiation spurs of the electronic device 110 exceed the standard, it indicates that the first test circuit 111 is a source of the radiation spurs. If the third test result indicates that the radiation stray of the electronic device 110 does not exceed the standard, it indicates that the first test circuit 111 does not generate the radiation stray.
In the present embodiment, since the electronic device 110 includes a plurality of test circuits and a plurality of test antennas, a plurality of test paths can be composed. The switching unit 113 may perform switching of the test path in response to a switching operation by the user. As shown in fig. 2, a schematic structural diagram of another radiation stray testing apparatus 100 according to an embodiment of the present invention is implemented, and the schematic structural diagram of the radiation stray testing apparatus 100 shown in fig. 2 is a schematic structural diagram of a second testing path. The plurality of test antennas include a second test antenna 115, and when a second test circuit 112 of the plurality of test circuits is electrically connected to the input terminal of the auxiliary filter unit 120 through the switching unit 113, and the output terminal of the auxiliary filter unit 120 is electrically connected to a second test antenna 115 corresponding to the second test circuit 112, the switching unit 113, the auxiliary filter unit 120, and the second test antenna 115 form a second test path. Carrying out radiation stray measurement on the second test channel by using the tester to obtain a second test result; and judging the radiation stray source according to the second test result.
It will be appreciated that in the second test path, the second test circuit 112 is used to generate a second radio frequency signal; the auxiliary filtering unit 120 is configured to filter out harmonic clutter in the second radio frequency signal; the switching unit 113 is configured to connect the second test circuit 112 to the auxiliary filtering unit 120 in response to a user switching operation; the second test antenna 115 is configured to receive the second radio frequency signal processed by the auxiliary filtering unit 120, and perform electromagnetic transmission on the processed second radio frequency signal; the tester is used for detecting the second radio-frequency signal after the air processing to obtain a second test result.
If the second test result indicates that the radiation spurs of the electronic device 110 exceed the standard, the second test circuit 112 will not be a source of spurs because the auxiliary filtering unit 120 has filtered the harmonic spurs in the second rf signal; the stray sources come from other circuitry inside the electronic device 110. If the second test result indicates that the radiation stray of the electronic device 110 is not out of the limits, it indicates that other circuits inside the electronic device 110 are not generating stray.
In a case that it is determined that no spurious is generated in other circuits inside the electronic device 110, if it is desired to test whether the second test circuit 112 generates spurious, the auxiliary filtering unit 120 may be removed, and the second test circuit 112 and the second test antenna 115 form a new second test path through the switching unit 113, that is, the second test circuit 112 is electrically connected to the second test antenna 115 through the switching unit 113. And testing the new second test path by using the tester to obtain a fourth test result, and judging whether the second test circuit 112 generates radiation stray according to the fourth test result. If the fourth test result indicates that the radiation spurs of the electronic device 110 exceed the standard, it indicates that the second test circuit 112 is a source of the radiation spurs. If the fourth test result indicates that the radiation spurs of the electronic device 110 are not out of specification, it indicates that the second test circuit 112 is not a source of spurs.
In this embodiment, the connection manner and the measurement manner of other test paths may refer to the principle and implementation manner of the first test path and the second test path, and will not be described herein in detail. Of course, the connection mode of other test paths is not limited to the connection mode of the first test path and the second test path, and the connection mode of other test paths may also be: the first test circuit 111, the switching unit 113, the auxiliary filtering unit 120, and the second test antenna 115 constitute a third test path. That is, one test circuit may form different test paths with multiple test antennas, and different test circuits may form different test paths with different test antennas.
As shown in fig. 3, the electronic device 110 further includes a first test port 116 and a second test port 117, when the first test path is tested by the tester, the switching unit 113 is electrically connected to the input terminal of the auxiliary filtering unit 120 through the first test port 116, and the output terminal of the auxiliary filtering unit 120 is electrically connected to the first test antenna 114 through the second test port 117.
It is understood that the electronic device 110 is provided with a first test port 116 and a second test port 117, and the auxiliary filtering unit 120 can be connected with the first test port 116 and the second test port 117 in a plug-and-plug manner by using the connection characteristics of the first test port 116 and the second test port 117. The electronic device 110 is provided with the first test port 116 and the second test port 117 to facilitate debugging and installation by a tester.
As shown in fig. 4, when the second test path is tested by the tester, the switching unit 113 is electrically connected to the input terminal of the auxiliary filtering unit 120 through the first test port 116, and the output terminal of the auxiliary filtering unit 120 is electrically connected to the second test antenna 115 through the second test port 117.
In this embodiment, the auxiliary filtering units 120 are connected through 50 ohm matching, so that the spurious problem caused by the mismatch of the test path can be effectively avoided. The auxiliary filtering unit 120 may employ a low-pass filter.
In the embodiment, the switching unit 113 only connects one of the test circuits to the auxiliary filtering unit 120 at a time, so that the tester only measures one test path at a time. The switching unit 113 may be one of a multi-pole multi-throw switch and a multiplexer.
In this embodiment, the test circuit can not only generate the rf signal, but also receive the rf signal. Of course, some of the test circuits in the plurality of test circuits may only generate radio frequency signals and not receive radio frequency signals; some of the plurality of test circuits may receive only the rf signal and not generate the rf signal. The test circuit may include, among other things, a radio frequency power amplifier, a transceiver, and a switch.
In this embodiment, different test circuits and corresponding test antennas may be disposed at different locations of the electronic device 110.
In the embodiment, the electronic device 110 may be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, and the like.
Wherein the dashed lines in fig. 3 and 4 represent control opens or are not used.
To sum up, the utility model provides a spurious testing arrangement of radiation and electronic equipment, spurious testing arrangement of radiation include electronic equipment and auxiliary filter unit, and electronic equipment includes a plurality of test circuit, switching unit and a plurality of test antenna, a plurality of test circuit and a plurality of test antenna one-to-one. When a first test circuit in the plurality of test circuits is electrically connected with the input end of the auxiliary filter unit through the switching unit and the output end of the auxiliary filter unit is connected with a first test antenna point corresponding to the first test circuit, the switching unit, the auxiliary filter unit and the first test antenna form a first test path; measuring the first test channel by using a tester to obtain a first test result; and judging the radiation stray source according to the first test result. Therefore, by additionally arranging the auxiliary filtering unit and the switching function of the switching unit, the interference from the test circuit or other circuits in the electronic equipment can be quickly positioned without the help of additional second equipment, the positioning time of the radiation stray root cause can be greatly shortened, the interference of the second equipment on the electronic equipment is avoided, and the debugging cost is also reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A radiated spurious testing device is characterized by comprising electronic equipment and an auxiliary filtering unit, wherein the electronic equipment comprises a plurality of testing circuits, a switching unit and a plurality of testing antennas, and the testing circuits correspond to the testing antennas one by one;
the plurality of test antennas comprise a first test antenna, and when a first test circuit in the plurality of test circuits is electrically connected with the input end of the auxiliary filtering unit through the switching unit and the output end of the auxiliary filtering unit is electrically connected with a first test antenna corresponding to the first test circuit, the switching unit, the auxiliary filtering unit and the first test antenna form a first test path;
utilizing a tester to perform radiation stray measurement on the first test access to obtain a first test result;
and judging a radiation stray source according to the first test result.
2. The radiated stray test apparatus according to claim 1, wherein the electronic device further includes a first test port and a second test port;
when the tester is used for testing the first test access, the switching unit is electrically connected with the input end of the auxiliary filtering unit through the first test port, and the output end of the auxiliary filtering unit is electrically connected with the first test antenna through the second test port.
3. The device according to claim 1, wherein the plurality of test antennas includes a second test antenna, and when a second test circuit of the plurality of test circuits is electrically connected to the input terminal of the auxiliary filter unit through the switch unit, and the output terminal of the auxiliary filter unit is electrically connected to a second test antenna corresponding to the second test circuit, the switch unit, the auxiliary filter unit, and the second test antenna form a second test path;
carrying out radiation stray measurement on the second test access by using the tester to obtain a second test result;
and judging the radiation stray source according to the second test result.
4. The radiated stray test apparatus according to claim 3, wherein the electronic device further includes a first test port and a second test port;
when the tester is used for testing the second test access, the switching unit is electrically connected with the input end of the auxiliary filtering unit through the first test port, and the output end of the auxiliary filtering unit is electrically connected with the second test antenna through the second test port.
5. The radiated spurious test device of claim 1, wherein the switching unit includes one of a multi-pole, multi-throw switch and a multiplexer.
6. The radiated spurious test device of claim 1, wherein the auxiliary filtering unit is a low pass filter.
7. An electronic device, comprising a plurality of test circuits, a switching unit, and a plurality of test antennas, wherein the plurality of test circuits correspond to the plurality of test antennas one to one;
the plurality of test antennas comprise a first test antenna, and when a first test circuit in the plurality of test circuits is electrically connected with the input end of the auxiliary filtering unit through the switching unit and the output end of the auxiliary filtering unit is electrically connected with a first test antenna corresponding to the first test circuit, the switching unit, the auxiliary filtering unit and the first test antenna form a first test path;
utilizing a tester to perform radiation stray measurement on the first test access to obtain a first test result;
and judging a radiation stray source according to the first test result.
8. The electronic device of claim 7, further comprising a first test port and a second test port;
when the tester is used for testing the first test access, the switching unit is electrically connected with the input end of the auxiliary filtering unit through the first test port, and the output end of the auxiliary filtering unit is electrically connected with the first test antenna through the second test port.
9. The electronic device according to claim 7, wherein the plurality of test antennas includes a second test antenna, and when a second test circuit of the plurality of test circuits is electrically connected to the input terminal of the auxiliary filtering unit through the switching unit and the output terminal of the auxiliary filtering unit is electrically connected to a second test antenna corresponding to the second test circuit, the switching unit, the auxiliary filtering unit, and the second test antenna form a second test path;
carrying out radiation stray measurement on the second test access by using the tester to obtain a second test result;
and judging the radiation stray source according to the second test result.
10. The electronic device of claim 9, further comprising a first test port and a second test port;
when the tester is used for testing the second test access, the switching unit is electrically connected with the input end of the auxiliary filtering unit through the first test port, and the output end of the auxiliary filtering unit is electrically connected with the second test antenna through the second test port.
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| CN202021310149.7U CN212723133U (en) | 2020-07-06 | 2020-07-06 | Radiation stray testing device and electronic equipment |
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| CN202021310149.7U CN212723133U (en) | 2020-07-06 | 2020-07-06 | Radiation stray testing device and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411146A (en) * | 2021-06-28 | 2021-09-17 | 维沃移动通信有限公司 | Detection circuit and electronic device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411146A (en) * | 2021-06-28 | 2021-09-17 | 维沃移动通信有限公司 | Detection circuit and electronic device |
| CN113411146B (en) * | 2021-06-28 | 2022-12-27 | 维沃移动通信有限公司 | Detection circuit and electronic device |
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