CN103560841A - Radio frequency circuit testing system and method - Google Patents
Radio frequency circuit testing system and method Download PDFInfo
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- CN103560841A CN103560841A CN201310519815.6A CN201310519815A CN103560841A CN 103560841 A CN103560841 A CN 103560841A CN 201310519815 A CN201310519815 A CN 201310519815A CN 103560841 A CN103560841 A CN 103560841A
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Abstract
The invention discloses a radio frequency circuit testing system and method. The radio frequency circuit testing system comprises a testing PC, a signal generator, a conversion board and a radio frequency signal testing analyzer. The testing PC is used for presetting testing signals and sending the testing signals to the signal generator and the radio frequency signal testing analyzer so that the correctness of the obtained attenuation values of radio frequency circuits to be tested can be analyzed. The signal generator is connected with the testing PC and used for generating preset testing signals and sending the generated preset testing signals to the conversion board. The conversion board is connected with the signal generator and used for transmitting preset radio frequency signals and matching the radio frequency circuits to be tested and in various testing types. The radio frequency signal testing analyzer is connected with the testing PC and the conversion board respectively and used for receiving testing signals and obtaining the attenuation values of the radio frequency circuits to be tested according to the received testing signals and the received preset testing signals, and the radio frequency signal testing analyzer is connected with the conversion board through the radio frequency circuits to be tested. By means of the radio frequency circuit testing system and method, the work load of testing personnel can be reduced and the testing efficiency can be improved.
Description
Technical field
The present invention relates to automatization testing technique field, particularly a kind of radio-frequency line test macro and method.
Background technology
Due to the important indicator that radio frequency parameter is radio communication product, therefore, in radio communication product production process, must test radio frequency parameter.Wherein, due to the pad value of radio-frequency line, directly affect the test result of radio frequency parameter.Therefore,, before carrying out radio frequency parameter test, also must test the pad value of radio-frequency line.
In the prior art, adopt the pad value of testing radio frequency circuit with the following method: one end of radio-frequency line is connected with the port one of radiofrequency signal measuring and analysing meter, and the other end is connected with the port 2 of radiofrequency signal measuring and analysing meter.Due to, in the test process of actual radio frequency parameter, in order to improve testing efficiency, the port one of its radiofrequency signal measuring and analysing meter is all fixedly connected with a shielded box with port 2, and its tester is placed in product to be measured in shielded box, can test product to be measured.
Therefore, in the prior art, when carrying out radio-frequency line test, tester is except in the shielded box that measurement circuit need be placed in to a port and connect, so that radio-frequency line is connected with this port, also need the corresponding shielded box in another port to remove, then this port is connected with radio-frequency line, just can carry out the test of radio-frequency line.Therefore, this has increased the workload of estimating personnel undoubtedly, has reduced testing efficiency.
Summary of the invention
In view of this, the object of the present invention is to provide radio-frequency line test macro and method, to reduce tester's workload, improve testing efficiency.
For achieving the above object, the invention provides following technical scheme:
A test macro, comprising:
Test computer PC, for default test signal, and is sent to described test signal the correctness of the pad value of the radio-frequency line to be measured that signal generator and radiofrequency signal measuring and analysing meter and analysis obtain;
Described signal generator, is connected with described test PC, for generation of described default test signal, and the default test signal producing is sent to change-over panel;
Described change-over panel, is connected with described signal generator, for the radio-frequency line to be measured that transmits described default radiofrequency signal and mate various test-types;
Described radiofrequency signal measuring and analysing meter, is connected with change-over panel with described test PC respectively, for receiving test signal, and according to the test signal and the default test signal that receive, obtains the pad value of radio-frequency line to be measured;
Wherein, described radiofrequency signal measuring and analysing meter is connected with described change-over panel by described radio-frequency line to be measured, and the input of described radio-frequency line to be measured is connected with described change-over panel, and output is connected with a port of described radiofrequency signal measuring and analysing meter.
Preferably, described radio-frequency line to be measured comprises:
Separator;
The radio frequency output line being connected with one end of described separator;
The N bar radio frequency input line being connected with the other end of described separator, described N is integer.
Preferably, on described change-over panel, be provided with N interface and/or N radio frequency crossover sub that adapts to bonding wire that adapts to rf probe tool, N link;
When described radio-frequency line to be measured adopts rf probe tool to test, the N of a described change-over panel interface is connected one by one with N radio frequency input line of radio-frequency line to be measured, and a link is connected with described signal generator, and all the other N-1 link is unsettled;
When described radio-frequency line to be measured adopts bonding wire to test, the N of described change-over panel radio frequency crossover sub is connected one by one with N radio frequency input line of described radio-frequency line to be measured, and a link is connected with described signal generator, and all the other N-1 link is unsettled.
Preferably, when described N is more than or equal to 2, also comprise:
Switch, is arranged between described signal generator and change-over panel, for switching different radio frequency input lines, tests.
Preferably, between described signal generator and switch, between described switch and change-over panel, all adopt radio frequency line to be connected;
Wherein, the pad value of described radio frequency line is known.
Preferably, described switch is provided with N handoff links, 1 diverter switch, 1 link and 1 control end;
One end of a described N handoff links is connected one by one with N link of described switch boards, and the other end is unsettled or be connected with described diverter switch;
The link of described switch is connected with described signal generator, and control end is connected with described test PC.
Preferably, between described test PC and described radiofrequency signal measuring and analysing meter, between described test PC and described switch and between described test PC and signal generator, all adopt netting twine to be connected.
A method of testing, described method is based on radio-frequency line test macro, and described radio-frequency line test macro at least comprises test computer PC, signal generator, change-over panel and radiofrequency signal measuring and analysing meter; Described radiofrequency signal measuring and analysing meter is connected with described change-over panel by radio-frequency line to be measured; Described method comprises:
Test computer PC presets test signal, and the correctness that described test signal is sent to signal generator and radiofrequency signal measuring and analysing meter and analyzes the pad value of the radio-frequency line to be measured obtaining;
Signal generator produces described default test signal, and the default test signal producing is sent to change-over panel;
The change-over panel described default radiofrequency signal of transmission and the radio-frequency line that mates various test-types;
Radiofrequency signal measuring and analysing meter receives described test signal, and according to the test signal and the default test signal that receive, obtains the pad value of radio-frequency line to be measured.
By above-mentioned technical scheme, can be found out, when the system and method in adopting the present invention is tested, only radio-frequency line to be measured need be placed in to the relevant position of the shielded box that a port of radiofrequency signal measuring and analysing meter connects, so that one end of radio-frequency line to be measured is connected with this port of radiofrequency signal measuring and analysing meter, then the other end of radio-frequency line is connected with one end of change-over panel, finally again signal generator is connected with test PC with the other end of change-over panel respectively, can test radio-frequency line, and without the corresponding shielded box in the another port of radiofrequency signal measuring and analysing meter is removed, thereby reduced tester's workload, improved testing efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The module map of the radio-frequency line test macro that Fig. 1 provides for the embodiment of the present invention;
Another module map of the radio-frequency line test macro that Fig. 2 provides for the embodiment of the present invention;
The flow chart of the radio-frequency line method of testing that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A kind of structure that the invention discloses radio-frequency line test macro, as shown in Figure 1, at least comprises:
Test computer PC(11), for default test signal, and the correctness that above-mentioned test signal is sent to signal generator 12 and radiofrequency signal measuring and analysing meter 13 and analyzes the pad value of the radio-frequency line to be measured obtaining;
Concrete, can be at above-mentioned test PC(11) upper operation automatic test software, and debud mode (for example, frequency modulation, amplitude modulation and phase modulation etc.) that default test signal adopts and the frequency of default test signal can be set in automatic test software.As for, the default amplitude of estimating signal should be the most stable signal amplitude of above-mentioned signal generator 12, should be a fixed value in automatic test software, can not transfer arbitrarily.
More specifically, test PC(11) with signal generator 12 between and test PC(11) with radiofrequency signal measuring and analysing meter (13) between can all adopt netting twine to be connected.
Signal generator 12, with test PC(11) be connected, for generation of default test signal, and the default test signal producing is sent to change-over panel 14;
Concrete, signal generator 12 can, according to the modulation system of the default test signal setting, frequency and amplitude, produce corresponding default test signal.
Change-over panel 14, is connected with signal generator 12, for the radio-frequency line to be measured that transmits default test signal and mate various test-types; Wherein, change-over panel 14 can adopt radio frequency line to be connected with signal generator 12, and the pad value of above-mentioned radio frequency line should be for known; Wherein, can test in advance the pad value of above-mentioned radio frequency line;
Concrete, still referring to Fig. 1, radio-frequency line to be measured can comprise:
Separator;
The radio frequency output line being connected with one end of above-mentioned separator;
The N bar radio frequency input line being connected with the other end of above-mentioned separator, N is integer;
Need to illustrate, in the prior art, radio-frequency line to be measured is general all to be tested under the state that there is no assembling, estimates personnel and generally adopts in two ways and test:
Mode one: adopt the test point of rf probe tool contact measured radio-frequency line, test, this mode is applicable to described radio-frequency line to be measured;
Mode two: utilize the bonding wire on radio-frequency line to be measured to test, and this mode is only applicable to have the radio-frequency line to be measured of bonding wire;
Therefore, the invention discloses a kind of change-over panel 14, on this change-over panel, be at least provided with N interface and/or the individual radio frequency crossover sub in bonding wire, N link of being suitable for of N that adapts to rf probe tool;
Wherein, when radio-frequency line to be measured adopts rf probe tool to test, the N of change-over panel 14 interface is connected one by one with N radio frequency input line of radio-frequency line to be measured, and a link is connected with signal generator 12, and all the other N-1 unsettled;
And when radio-frequency line to be measured adopts bonding wire to test, the N of change-over panel 14 radio frequency crossover sub is connected one by one with N radio frequency input line of radio-frequency line to be measured, a link is connected with signal generator 12, and all the other N-1 link is unsettled;
It should be noted that, when actual test, for the test of different radio frequency input line, need that tester is manual switches, for aforesaid way, be suitable for having the radio-frequency line to be measured of a radio frequency input line.
Radiofrequency signal measuring and analysing meter 13, respectively with test PC(11) be connected with change-over panel 14, for receiving test signal, and according to the test signal and the default test signal that receive, obtain the pad value of radio-frequency line to be measured;
Wherein, radiofrequency signal measuring and analysing meter 13 is connected with change-over panel 14 by radio-frequency line to be measured, and the input of radio-frequency line to be measured 15 is connected with change-over panel 14, and output is connected with a port of radiofrequency signal measuring and analysing meter 13.
More specifically, at above-mentioned radiofrequency signal measuring and analysing meter, obtain after the pad value of radio-frequency line to be measured, also need this pad value to be sent to test PC (11), test PC(11) the automatic test software moving, by the correctness of this pad value of automatic analysis, if correct, deposits obtained pad value in the frequency of fadings table of comparisons in, if incorrect, re-start test.
By above-mentioned technical scheme, can be found out, when the system in employing the present invention is tested, only radio-frequency line to be measured need be placed in to the relevant position of the shielded box that a port of radiofrequency signal measuring and analysing meter 13 connects, so that one end of radio-frequency line to be measured is connected with this port of radiofrequency signal measuring and analysing meter 13, then the other end of radio-frequency line is connected with change-over panel 14, last again by signal generator 12 respectively with the other end of conversion 14 and test PC(11) be connected, can test radio-frequency line, and without the corresponding shielded box in the another port of radiofrequency signal measuring and analysing meter 13 is removed, thereby reduced tester's workload, improved testing efficiency.Except after this, because system of the present invention has reduced the artificial impact on test environment, also can make test result more accurate.
It should be noted that, in actual test, change-over panel 14 can be placed in the shielded box being connected with radiofrequency signal measuring and analysing meter 13, so, actual while carrying out radio-frequency line test, only radio-frequency line to be measured need be placed in above-mentioned shielded box, and then by signal generator 12 respectively with change-over panel 14 and test PC(11) is connected, can test, like this, to further reduce tester's workload, thereby further improve testing efficiency.
Due to the disclosed system of above-described embodiment, be applicable to have the situation of a radio frequency input line, therefore in other embodiment of the present invention, when radio-frequency line to be measured has at least two radio frequency input lines (when above-mentioned N is more than or equal to 2), system in above-mentioned all embodiment, as shown in Figure 2, also can arrange:
Concrete, above-mentioned switch 15 is changeable N handoff links, 1 diverter switch, 1 link and 1 control end;
Wherein, one end of N handoff links is connected one by one with the N of switch boards link, the other end is unsettled or be connected (wherein, each constantly has a handoff links to be connected with diverter switch only, and the other end of all the other N-1 handoff links is all unsettled) with diverter switch;
The link of switch 15 is connected with signal generator 12, and control end is connected with test PC (11);
Wherein, the control end of switch 15 and test PC(11) can adopt netting twine to be connected, simultaneously, test PC(11) the automatic test software carrying out can be controlled the diverter switch of switch 15 and being connected or disconnection of handoff links, thereby makes to test the pad value of the corresponding radio frequency line input line of every road handoff links;
Therefore, adopt above-mentioned test macro, without tester is manual, switch radio frequency input line, thereby further improved testing efficiency.
Corresponding with said system, the invention also discloses a kind of radio-frequency line method of testing, and said method is based on radio-frequency line test macro, and radio-frequency line test macro can at least comprise test PC, signal generator, change-over panel and radiofrequency signal measuring and analysing meter; Wherein, radiofrequency signal measuring and analysing meter is connected with change-over panel by radio-frequency line to be measured, and as shown in Figure 3, said method at least comprises the steps:
S11: the default test signal of test PC, and the correctness of pad value that above-mentioned test signal is sent to signal generator and radiofrequency signal measuring and analysing meter and analyzes the radio-frequency line to be measured of acquisition;
Concrete, can on test PC, move automatic test software, and in above-mentioned automatic test software, default test signal can be set;
S12: signal generator produces default test signal, and the default test signal producing is sent to change-over panel;
S13: the default radiofrequency signal of change-over panel transmission and the radio-frequency line that mates various test-types;
S14: radiofrequency signal measuring and analysing meter receives test signal, and estimate signal according to the test signal receiving with default, obtain the pad value of radio-frequency line to be measured.
Therefore, adopt the method in the present invention to test, only radio-frequency line to be measured need be placed in to the relevant position of the shielded box that a port of radiofrequency signal measuring and analysing meter connects, so that one end of radio-frequency line to be measured is connected with this port of radiofrequency signal measuring and analysing meter, then the other end of radio-frequency line is connected with one end of change-over panel, finally again signal generator is connected with test PC with the other end of change-over panel respectively, can test radio-frequency line, and without the corresponding shielded box in the another port of radiofrequency signal measuring and analysing meter is removed, thereby reduced tester's workload, improved testing efficiency.Except after this, because method of the present invention has reduced the artificial impact on test environment, also can make test result more accurate.
It should be noted that, before carrying out radio-frequency line test, should first initialization signal generator and radiofrequency signal measuring and analysing meter, and can be referring to the record of said system for the refinement step of above-mentioned steps S11, S12, S13 and S14.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a radio-frequency line test macro, is characterized in that, comprising:
Test computer PC, for default test signal, and is sent to described test signal the correctness of the pad value of the radio-frequency line to be measured that signal generator and radiofrequency signal measuring and analysing meter and analysis obtain;
Described signal generator, is connected with described test PC, for generation of described default test signal, and the default test signal producing is sent to change-over panel;
Described change-over panel, is connected with described signal generator, for the radio-frequency line to be measured that transmits described default radiofrequency signal and mate various test-types;
Described radiofrequency signal measuring and analysing meter, is connected with change-over panel with described test PC respectively, for receiving test signal, and according to the test signal and the default test signal that receive, obtains the pad value of radio-frequency line to be measured;
Wherein, described radiofrequency signal measuring and analysing meter is connected with described change-over panel by described radio-frequency line to be measured, and the input of described radio-frequency line to be measured is connected with described change-over panel, and output is connected with a port of described radiofrequency signal measuring and analysing meter.
2. system according to claim 1, is characterized in that, described radio-frequency line to be measured comprises:
Separator;
The radio frequency output line being connected with one end of described separator;
The N bar radio frequency input line being connected with the other end of described separator, described N is integer.
3. system according to claim 2, is characterized in that, is provided with N interface and/or N radio frequency crossover sub that adapts to bonding wire that adapts to rf probe tool, N link on described change-over panel;
When described radio-frequency line to be measured adopts rf probe tool to test, the N of a described change-over panel interface is connected one by one with N radio frequency input line of radio-frequency line to be measured, and a link is connected with described signal generator, and all the other N-1 link is unsettled;
When described radio-frequency line to be measured adopts bonding wire to test, the N of described change-over panel radio frequency crossover sub is connected one by one with N radio frequency input line of described radio-frequency line to be measured, and a link is connected with described signal generator, and all the other N-1 link is unsettled.
4. system according to claim 3, is characterized in that, when described N is more than or equal to 2, also comprises:
Switch, is arranged between described signal generator and change-over panel, for switching different radio frequency input lines, tests.
5. system according to claim 4, is characterized in that, between described signal generator and switch, all adopt radio frequency line to be connected between described switch and change-over panel;
Wherein, the pad value of described radio frequency line is known.
6. system according to claim 4, is characterized in that, described switch is provided with N handoff links, 1 diverter switch, 1 link and 1 control end;
One end of a described N handoff links is connected one by one with N link of described switch boards, and the other end is unsettled or be connected with described diverter switch;
The link of described switch is connected with described signal generator, and control end is connected with described test PC.
7. system according to claim 6, is characterized in that, between described test PC and described radiofrequency signal measuring and analysing meter, between described test PC and described switch and between described test PC and signal generator, all adopts netting twine to be connected.
8. a radio-frequency line method of testing, is characterized in that, described method is based on radio-frequency line test macro, and described radio-frequency line test macro at least comprises test computer PC, signal generator, change-over panel and radiofrequency signal measuring and analysing meter; Described radiofrequency signal measuring and analysing meter is connected with described change-over panel by radio-frequency line to be measured; Described method comprises:
Test computer PC presets test signal, and the correctness that described test signal is sent to signal generator and radiofrequency signal measuring and analysing meter and analyzes the pad value of the radio-frequency line to be measured obtaining;
Signal generator produces described default test signal, and the default test signal producing is sent to change-over panel;
The change-over panel described default radiofrequency signal of transmission and the radio-frequency line that mates various test-types;
Radiofrequency signal measuring and analysing meter receives described test signal, and according to the test signal and the default test signal that receive, obtains the pad value of radio-frequency line to be measured.
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| CN103929257A (en) * | 2014-04-28 | 2014-07-16 | 信亚美科（南京）信息技术有限公司 | Radar dynamic frequency selection test system |
| CN105301377A (en) * | 2014-06-19 | 2016-02-03 | 联想移动通信科技有限公司 | Method, apparatus and system for measuring RF line loss |
| CN106872829A (en) * | 2017-03-16 | 2017-06-20 | 京信通信技术(广州)有限公司 | The test system of multifrequency integrated power amplifier |
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| CN103560841B (en) | 2016-05-04 |
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