CN103076507A - Radio frequency module, sampling device, antenna test system and antenna test method - Google Patents
Radio frequency module, sampling device, antenna test system and antenna test method Download PDFInfo
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- CN103076507A CN103076507A CN2012105852210A CN201210585221A CN103076507A CN 103076507 A CN103076507 A CN 103076507A CN 2012105852210 A CN2012105852210 A CN 2012105852210A CN 201210585221 A CN201210585221 A CN 201210585221A CN 103076507 A CN103076507 A CN 103076507A
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Abstract
The invention discloses a radio frequency module. The radio frequency module comprises a radio frequency main body and a driver circuit arranged on the radio frequency main body, wherein the driver circuit is provided with a signal input end, a signal output end and at least one parameter receiving end, the signal input end is used as a bypass end and used for connecting the signal input end of a driver circuit of another radio frequency module, the parameter receiving end is connected with a probe, and the probe is used for collecting measurement parameters of an antenna to be measured; and an external control signal is input to the driver circuit from the signal input end, and the driver circuit selectively enables the signal output end or selectively enables one of the at least one parameter receiving end according to the external control signal. The invention also discloses a sampling device, an antenna test system and an antenna test method. Through the scheme, the test efficiency and the test quality are improved during antenna phase test.
Description
Technical field
The present invention relates to the wireless telecommunications system production technical field, particularly relate to a kind of radio-frequency module, sampling apparatus, Antenna testing system and antenna test method.
Background technology
Base station radio-frequency antenna for a mobile communication cause use, before putting into the base station use, to test the indices of base station radio-frequency antenna, wherein, this indices comprises standing wave, phase place and isolation etc., after the whole affirmations of these indexs were qualified, this base station radio-frequency antenna just can shipment arrive applications client.
Existing proving installation is substantially take the research and development type as main, it can provide the fundamental measurement of basic index, but in the testing authentication process of whole base station radio-frequency antenna, a lot of links need to rely on manually and operate, control and observation etc., not only testing efficiency is lower, thereby and causes underproof base station radio-frequency antenna stream to go to applications client because artificial erroneous judgement is disconnected easily.
Summary of the invention
The technical matters that the present invention mainly solves provides a kind of radio-frequency module, sampling apparatus, Antenna testing system and antenna test method, when being used for the test antenna phase place, can improve testing efficiency and test mass.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of radio-frequency module of using for antenna measurement is provided, comprise: radio frequency body and the driving circuit that is arranged on the radio frequency body, driving circuit is provided with signal input part, signal output part and at least one parameter receiving end; Wherein, in order to connect the signal input part of driving circuit in another radio-frequency module, the parameter receiving end is connected with probe to signal input part as bypass ends, and probe is in order to gather the measurement parameter of antenna to be measured; External control signal is input to driving circuit from the signal input end, and driving circuit enables at least one parameter receiving end one of them according to external control signal selectivity enable signal output terminal or selectivity.
Wherein, radio frequency body one end is provided with connector, the other end is provided with web member, and web member is used for connecting the connector of another radio-frequency module and then radio-frequency module and another radio-frequency module are connected and fixed.
Wherein, the radio frequency body interior is provided with accommodation space, and accommodation space is used for collecting company's fitting.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of sampling apparatus of using for antenna measurement is provided, comprises at least the first radio-frequency module and the second radio-frequency module; The first radio-frequency module comprises the first radio frequency body and the first driving circuit that is arranged on the first radio frequency body, and the first driving circuit is provided with first signal input end, first signal output terminal and at least one the first parameter receiving end; External control signal is input to the first driving circuit from the first signal input end, and the first driving circuit enables first signal output terminal or selectivity according to the external control signal selectivity and enables at least one first parameter receiving end one of them; The second radio-frequency module comprises the second radio frequency body and the second driving circuit that is arranged on the second radio frequency body, the second driving circuit is provided with secondary signal input end, secondary signal output terminal and at least one the second parameter receiving end, the first parameter receiving end and the second parameter receiving end are connected with probe, probe is in order to gather the measurement parameter of antenna to be measured, and the first signal output terminal of the first driving circuit connects the secondary signal input end of the second driving circuit; When the first driving circuit enables the first signal output terminal, the first signal output terminal is input to the second driving circuit with external control signal from the secondary signal input end, and the second driving circuit enables secondary signal output terminal or selectivity according to the external control signal selectivity and enables at least one second parameter receiving end one of them.
Wherein, the second radio frequency body one end of the first radio frequency body of the first radio-frequency module and the second radio-frequency module is provided with connector, the other end is provided with web member, and the web member of the first radio frequency body connects the connector of the second radio frequency body and then the first radio-frequency module and the second radio-frequency module are connected and fixed.
Wherein, the first radio frequency body and the second radio frequency body interior are provided with accommodation space, and the accommodation space of the first radio frequency body is used for accommodating the web member of the first radio frequency body, and the accommodation space of the second radio frequency body is used for accommodating the web member of the second radio frequency body.
Wherein, sampling apparatus comprises housing, the first radio-frequency module and the second radio-frequency module all are arranged at enclosure interior, wherein, be provided with the first port and the second port on the housing, the first signal input port of the first driving circuit connects the first port, the first radio-frequency module be connected each probe separately of radio-frequency module and all connect the second port.
Wherein, housing is the housing of penetrable electromagnetism.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of Antenna testing system is provided, comprises such as the described sampling apparatus of above-mentioned each embodiment.
Wherein, Antenna testing system comprises control terminal, network analyzer, matrix switch module and breakout box, and wherein, breakout box is used for converting usb signal to the TTL signal; Wherein, control terminal is connected with sampling apparatus by breakout box, and the control end of control terminal difference interconnection network analyser and the control end of matrix switch module; And, the output terminal of network analyzer, input end is connected respectively the input end of matrix switch module, output terminal, wherein, matrix switch module also comprises a plurality of test ports, input end and the output terminal of the equal selectivity connection matrix of a plurality of test ports switch module, wherein, a test port in the input end of matrix switch module and a plurality of test port connects and composes the first test channel, and another test port connects and composes the second test channel in the output terminal of matrix switch module and a plurality of test port, and the second test channel connects the first port of sampling apparatus; The first control signal gating the first test channel and the second test channel that matrix switch module sends over according to control terminal, the test signal that the first test channel is sent in order to the output terminal that is received from network analyzer, each transmitter unit of antenna to be measured obtains test signal and test signal is launched from the first test channel, the second control signal that sampling apparatus sends over through breakout box according to control terminal selects corresponding probe with separately, gather successively the phase parameter of each transmitter unit of antenna to be measured, the input end of network analyzer obtains phase parameter from the second test channel.
Wherein, Antenna testing system comprises suction ripple wall; Inhale the ripple wall and be used for absorbing the electromagnetic wave that antenna to be measured leaks out from sampling apparatus, wherein, inhale the electromagnetic wave that the ripple wall absorbs 700MHz-3GHz.
The part of wherein, inhaling ripple wall electromagnetic wave absorption adopts high magnetic conductivity ferrite material.
Wherein, breakout box is the USB-TTL controller.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of antenna test method is provided, comprise such as the described Antenna testing system of above-mentioned arbitrary embodiment, comprise the steps: that matrix switch module is according to the first control signal gating the first test channel and the second test channel, the test signal that the first test channel sends in order to the output terminal that receives network analyzer; Each transmitter unit of antenna to be measured obtains test signal and launches from the first test channel; Sampling apparatus enables the probe of its relevant position with the phase parameter that gathers separately, successively each transmitter unit of antenna to be measured and the input end that phase parameter is sent to network analyzer from the second test channel according to the second control signal; Wherein, matrix switch module comprises a plurality of test ports, input end and the output terminal of the equal selectivity connection matrix of a plurality of test ports switch module, wherein, a test port in the input end of matrix switch module and a plurality of test port connects and composes the first test channel, and another test port connects and composes the second test channel in the output terminal of matrix switch module and a plurality of test port, and the second test channel connects the first port of sampling apparatus.
The invention has the beneficial effects as follows: the situation that is different from prior art, radio-frequency module of the present invention is by signalization input end on the driving circuit of same radio-frequency module, signal output part and at least one parameter receiving end, wherein, the probe of the corresponding connection sampling of each parameter receiving end usefulness, and the radio-frequency module more heterogeneous isostructural radio-frequency module of can connecting, enable arbitrary parameter receiving end in the respective radio-frequency module drive circuit by the external control signal selectivity, perhaps selectivity enable signal output terminal, do not need artificial progressively mobile probe and then realization to treat the collection of the test parameter of each transmitter unit of observation line, automation collection and the precision of test parameter that can realize treating each transmitter unit of observation line is adjustable, can reduce human cost, time cost and testing apparatus cost, and then can improve testing efficiency and test mass.
Description of drawings
Fig. 1 is the structural representation of radio-frequency module embodiment of the present invention;
Fig. 2 is the circuit diagram of driving circuit in the radio-frequency module embodiment shown in Figure 1;
Fig. 3 is the connection diagram of radio-frequency module shown in Figure 1 and another radio-frequency module;
Fig. 4 is the structural representation of sampling apparatus embodiment of the present invention;
Fig. 5 is the circuit diagram of driving circuit in the sampling apparatus embodiment shown in Figure 4;
Fig. 6 is the structural representation of another embodiment of sampling apparatus of the present invention;
Fig. 7 is the structural representation of Antenna testing system embodiment of the present invention;
Fig. 8 is the circuit diagram of USB-TTL controller in the Antenna testing system embodiment shown in Figure 7;
Fig. 9 is the structural representation of inhaling the ripple wall in the Antenna testing system embodiment of the present invention;
Figure 10 is the process flow diagram of antenna test method embodiment of the present invention.
Embodiment
The present invention is described in detail below in conjunction with drawings and embodiments.
In conjunction with Fig. 1 to Fig. 3, Fig. 1 is the structural representation of radio-frequency module embodiment of the present invention, and Fig. 2 is the circuit diagram of driving circuit in the radio-frequency module embodiment shown in Figure 1, and Fig. 3 is the connection diagram of radio-frequency module shown in Figure 1 and another radio-frequency module.Radio-frequency module embodiment of the present invention comprises: radio frequency body 11 and driving circuit 12.
External control signal is input to driving circuit 12 from signal input end 121, and driving circuit 12 enables in the parameter receiving end 123,124,125 one of them according to external control signal selectivity enable signal output terminal 122 or selectivity.That is, or signal output part 122 is enabled, or any one is enabled in the parameter receiving end 123,124,125, parameter receiving end 123,124,125 any one when being enabled, its corresponding probe that connects is sampled.
Embodiment of the present invention, by signalization input end 121 on the driving circuit 12 of same radio-frequency module 1, signal output part 122 and parameter receiving end 123,124,125, wherein, parameter receiving end 123,124,125 corresponding connections are used for the probe 131 of sampling, 132,133, and the radio-frequency module 1 more heterogeneous isostructural radio-frequency module of can connecting, enable arbitrary parameter receiving end in the respective radio-frequency module drive circuit by the external control signal selectivity, perhaps selectivity enable signal output terminal, do not need artificial progressively mobile probe and then realization to treat the collection of the test parameter of each transmitter unit of observation line, automation collection and the precision of test parameter that can realize treating each transmitter unit of observation line is adjustable, can reduce human cost, time cost and testing apparatus cost, and then can improve testing efficiency and test mass.
Continue to consult Fig. 1 and Fig. 3, in an application implementation mode, radio frequency body 11 1 ends are provided with connector 111, the other end is provided with web member 112, and web member 112 is used for connecting the connector (not shown) of another radio-frequency module 1 ' and then radio-frequency module 1 and another radio-frequency module 1 ' are connected and fixed.Can be provided with accommodation space 113 in radio frequency body 11 inside, when not needing to use web member 112 or not needing to use whole length of web member 112, but accommodation space 113 collecting company's fittings 112 are all or part of.Connector 111 is set makes things convenient for being connected of radio-frequency module 1 with web member 112, improve packaging efficiency; And accommodation space 113 is set with collecting company's fitting 112 in radio frequency body 11 inside, and can be so that the length of radio frequency body 11 be adjustable, not only the spacing between convenient each radio-frequency module 1 of adjustment also can instant packed, transportation to be suitable for different test environments.
In conjunction with Fig. 4 and Fig. 5, Fig. 4 is the structural representation of sampling apparatus embodiment of the present invention, and Fig. 5 is the synoptic diagram of driving circuit in the sampling apparatus embodiment shown in Figure 4.The sampling apparatus of embodiment of the present invention comprises at least: the first radio-frequency module 2 and the second radio-frequency module 3.
The first radio-frequency module 2 comprises the first radio frequency body 21 and the first driving circuit 22 that is arranged on the first radio frequency body 21, the first driving circuit 22 is provided with first signal input end 221, first signal output terminal 222 and the first parameter receiving end 223,224,225, and, the first parameter receiving end 223,224,225 respectively corresponding connection probes 231,232,233.
External control signal is input to the first driving circuit 22, the first driving circuits 22 from first signal input end 221 and enables first signal output terminal 222 or selectivity according to the external control signal selectivity and enable in the first parameter receiving end 223,224,225 one of them.
The second radio-frequency module 3 comprises the second radio frequency body 31 and the second driving circuit 32 that is arranged on the second radio frequency body 31, the second driving circuit 32 is provided with secondary signal input end 321, secondary signal output terminal 322 and the second parameter receiving end 323,324,325, the second parameter receiving ends 323,324,325 respectively corresponding connection probes 331,332,333.And the first signal output terminal 222 of the first driving circuit 22 connects the secondary signal input end 321 of the second driving circuit 32.
When enabling secondary signal output terminal 322 in the second driving circuit 32 or in the second parameter receiving end 323,324,325 one of them, need the first driving circuit 22 to enable first signal output terminal 222, first signal output terminal 222 is input to the second driving circuit 32, the second driving circuits 32 with external control signal from secondary signal input end 321 and enables secondary signal output terminal 322 or selectivity according to the external control signal selectivity and enable in the second parameter receiving end 323,324,325 one of them.
Certainly, sampling apparatus can comprise the radio-frequency module more than three or three, want selectivity to enable the signal output part of driving circuit in the rear radio-frequency module or when wanting selectivity to enable at least one parameter receiving end one of them, need to enable first the signal output part of these rear all radio-frequency modules of radio-frequency module front, the driving circuit of this rear radio-frequency module just can get access to external control signal like this, and detailed process can be with reference to preamble.Connecting more, multi-radio can cover different antennas to be measured.
Embodiment of the present invention, enable arbitrary parameter receiving end or selectivity enable signal output terminal in the respective radio-frequency module drive circuit by the external control signal selectivity, do not need artificial progressively mobile probe and then realization to treat the collection of the test parameter of each transmitter unit of observation line, automation collection and the precision of test parameter that can realize treating each transmitter unit of observation line is adjustable, human cost, time cost and testing apparatus cost can be reduced, and then testing efficiency and test mass can be improved.
Certainly, in concrete application implementation mode, as shown in Figure 5, the first radio frequency body 21 1 ends of the first radio-frequency module 2 are provided with the second radio frequency body 31 1 ends that connector 211, the other end be provided with web member 212 and the second radio-frequency module 3 and are provided with web member 212 that connector 311, the other end be provided with web member 312, the first radio frequency bodies 21 and connect the connector 311 of the second radio frequency body 31 and then the first radio-frequency module 2 and the second radio-frequency module 3 are connected and fixed.And, can accommodation space 213 be set in the first radio frequency body 21 inside, in the second radio frequency body 31 inside accommodation space 313 is set, the accommodation space 213 of the first radio frequency body 21 is used for accommodating the web member 312 of the second radio frequency body 31 for the accommodation space 313 of web member 212, the second radio frequency bodies 31 of accommodating the first radio frequency body 21.
Further, as shown in Figure 6, Fig. 6 is the structural representation of another embodiment of sampling apparatus of the present invention, and please in conjunction with Fig. 4.Sampling apparatus also comprises: housing 100.
The first radio-frequency module 2 and the second radio-frequency module 3 all are arranged at housing 100 inside, wherein, be provided with the first port (not shown) and the second port (not shown) on the housing 100, the first signal input end 221 of the first driving circuit 22 connects the first port, the first radio-frequency module 2 be connected each probe separately of radio-frequency module 3 and all connect the second port, as shown in Figure 6, the probe 331,332 of the probe 231,232 of the first radio-frequency module 2, the 233 and second radio-frequency module 3,333 etc.When the quantity of radio-frequency module when being more, it is arranged at housing 100 inside with reference to first radio-frequency module 2 and the second radio-frequency module 3, does not give unnecessary details one by one herein.
Consult Fig. 7, Fig. 7 is the structural representation of Antenna testing system embodiment of the present invention.And please in conjunction with Fig. 5 and Fig. 6, Antenna testing system embodiment of the present invention not only comprises such as the described sampling apparatus 10 of above-mentioned embodiment, also comprises network analyzer 20, matrix switch module 30, breakout box 40, GPIB module 50 and control terminal 60.
Wherein, control terminal 60 is connected with sampling apparatus 10 by breakout box 40, and breakout box 40 is used for converting usb signal to the TTL signal, and it adopts the USB-TTL controller usually.Particularly, as shown in Figure 8, USB-TTL controller 40 comprises USB input port 401, USB output port 402, TTL input port 403 and the TTL output port 404 that connects successively, USB input port 401 connects the USB interface 601 of control terminal 60, and TTL output port 404 connects the second port one 02 of sampling apparatus 10; And control terminal 60 is by GPIB module 50 difference interconnection network analyser 20 and matrix switch modules 30.Usually, control terminal 60 is terminal.
And, the output terminal 201 of network analyzer 20, input end 202 is connected respectively the input end 301 of matrix switch module 30, output terminal 302, wherein, matrix switch module 30 also comprises a plurality of test ports (test port 303 as shown in Figure 7,304,305), the input end 301 of the equal alternative connection matrix switch module 30 of a plurality of test ports and output terminal 302, the input end 301 that is matrix switch module 30 connects its all test ports, the output terminal 302 of matrix switch module 30 also connects its all test ports, when being used for the phase test of antenna 70 to be measured, matrix switch module 30 enables the corresponding port according to the control signal that control terminal 60 sends over, namely select corresponding test channel to send or the reception parameter, particularly, input end 301 and a plurality of test ports (303 of matrix switch module 30,304,305) test port (such as 304) in connects and composes the first test channel, and the output terminal 302 and a plurality of test ports (303 of matrix switch module 30,304,305) another test port (303) connects and composes the second test channel in.Wherein, the test port 303 of matrix switch module 30 links to each other with the first port 101 of sampling apparatus 10, and namely the second test channel connects the first port 101 of sampling apparatus 10.
The first control signal gating the first test channel and the second test channel that matrix switch module 30 sends over through GPIB module 50 according to control terminal 60, the test signal of sending with the output terminal 201 that receives network analyzer 20, antenna 70 each transmitter unit 701 to be measured obtain this test signal and test signal are launched from the first test channel, the second control signal that sampling apparatus 10 sends over through USB-TTL controller 40 according to control terminal 60 selects corresponding probe (can consult Fig. 4-Fig. 6) with separately, gather successively the phase parameter of antenna 70 each transmitter unit 701 to be measured, the input end 202 of network analyzer 20 obtains phase parameter from the second test channel, and namely the test port 303 of matrix switch module 30 obtains phase parameter and phase parameter is sent to the input end 202 of network analyzer 20 by the second test channel through the first port 101 of sampling apparatus 10.
As shown in Figure 9, Antenna testing system also comprises suction ripple wall 80.Inhale ripple wall 80 and be used for absorbing the electromagnetic wave that antenna 70 to be measured leaks out from sampling apparatus 10, wherein, inhale the electromagnetic wave that ripple wall 80 absorbs 700MHz-3GHz.The part of inhaling ripple wall 80 electromagnetic wave absorptions adopts high magnetic conductivity ferrite material, inhales ripple wall 80 by the most emittance of mode electromagnetic wave absorption of resonance, by coupling electromagnetic energy is transformed into heat energy again.Set up and inhale the electromagnetic wave that ripple wall 80 can absorb leakage, can eliminate dramatically electromagnetic interference (EMI) to the impact of probe sampling data accuracy.
In the above-mentioned embodiment, need to treat observation line 70 carries out the position and arranges and be connected, particularly, need to antenna 70 each transmitter unit 701 to be measured each probe of the corresponding sampling apparatus 10 of the surface of emission arrange, namely need sampling apparatus is covered antenna 70 to be measured, then inhale the electromagnetic wave of ripple wall 80 to leak from sampling apparatus 10 after absorbing probe to finish sampling in the arranged outside of sampling apparatus 10.
And antenna 70 to be measured comprises the first port 702 at least, when treating observation line 70 and carrying out phase test, and test port 304(or test port 305 in the first port 702 connection matrix switch modules 30 of this antenna 70 to be measured).
Control terminal 60 by GPIB module 50 send the first control signal to matrix switch module 30 to select corresponding test channel, this test channel receives the test signal of sending in order to the output terminal 201 that is received from network analyzer 20, and the first port 702 of antenna 70 to be measured obtains this test signal and this signal is launched.
And, when carrying out phase test, also need to select to pop one's head in to gather the phase parameter of antenna 70 each transmitter unit 701 to be measured accordingly in the sampling apparatus 10, particularly, control terminal 60 sends the second control signal (the second control signal is the TTL signal) by USB-TTL controller 40 and selects to pop one's head in accordingly in the sampling apparatus 10, finally can be so that antenna to be measured 70 each transmitter unit 701 can carry out corresponding one by one with probe, it should be noted that, for guaranteeing measuring accuracy, synchronization can only be sampled to the phase parameter of a transmitter unit 701, and namely control terminal 60 can only enable in the sampling apparatus 10 some probes of a certain radio-frequency module at synchronization and samples.Certainly, in the practical operation, need to consider spacing of each probe and the parameters such as size of antenna to be measured 70 for the selection of the second control signal.
Finally, the test port 303 of matrix switch module 30 obtains phase parameter and by test channel phase parameter is sent to the input end 202 of network analyzer 20 from the output terminal 302 of matrix switch module 30 through the first port 101 of sampling apparatus 10, carries out phase analysis for network analyzer 20.
Certainly, Antenna testing system of the present invention can also be used for treating the performances such as the isolation of observation line 70 and standing-wave ratio (SWR) and test.Concise and to the point:
Usually, antenna 70 to be measured comprises a plurality of transmitter units 701, each transmitter unit 701 further comprises a HFS 7011 and a low frequency part 7012, the HFS 7011 of each transmitter unit 701 all is connected to the first port 702 of antenna 70 to be measured, and the low frequency part 7012 of each transmitter unit 701 all is connected to the second port 703 of antenna 70 to be measured.
When (1) testing isolation, first antenna 70 to be measured is carried out connection with matrix switch module 30, particularly, the test port 304(of matrix switch module 30 or test port 305) be connected to the first port 702 of antenna 70 to be measured, the test port 305(of matrix switch module 30 or test port 304) be connected to the second port 703 of antenna 70 to be measured.
Such as, network analyzer 20 sends high-frequency signal, also inputs to the first port 702 of antenna 70 to be measured through the input end 301 of matrix switch module 30, the test port 304 of matrix switch module 30 successively from its output terminal 201, the second port 703 of antenna 70 to be measured obtains this high-frequency signal and inputs to the input end 202 of network analyzer 20 through the test port 304 of matrix switch module 30, the output terminal 302 of matrix switch module 30 successively, analyzes for network analyzer 20.
Correspondingly, network analyzer 20 sends low frequency signal, also inputs to the second port 703 of antenna 70 to be measured through the input end 301 of matrix switch module 30, the test port 305 of matrix switch module 30 successively from its output terminal 201, the first port 702 of antenna 70 to be measured obtains this low frequency signal and inputs to the input end 202 of network analyzer 20 through the test port 305 of matrix switch module 30, the output terminal 302 of matrix switch module 30 successively, analyzes for network analyzer 20.
When specifically judging whether antenna 70 to be measured satisfies insulated degree requirement, if when analyzing high-frequency signal strength that the second port 703 obtain antenna 70 to be measured gets access to less than certain value, if and when analyzing low frequency signal intensity that the first port 702 obtain matrix switch module 30 gets access to less than certain value, can judge that the isolation that obtains antenna 70 to be measured meets the demands.
Certainly, network analyzer 20 can send the mixed signal that comprises high-frequency signal and low frequency signal simultaneously, and its principle of work can be consulted preamble.
When (2) testing standing-wave ratio (SWR), also need first antenna 70 to be measured to be carried out connection with matrix switch module 30.Particularly, the test port 304 of matrix switch module 30, any one test port is connected to the first port 702(or second port 703 of antenna 70 to be measured in 305), network analyzer 20 sends test massage from its output terminal 201, and (this test signal can be high-frequency signal, low frequency signal or comprise high-frequency signal and the mixed signal of low frequency signal), and pass through successively the input end 301 of matrix switch module 30, the test port 304(of matrix switch module 30 or test port 305) input to the first port 702(or second port 703 of antenna 70 to be measured), the first port 702(of antenna 70 to be measured or the second port 703) obtain the corresponding reflected signal of this low frequency signal and pass through successively test port 304(or the test port 305 of matrix switch module 30), the output terminal 302 of matrix switch module 30 inputs to the input end 202 of network analyzer 20, analyzes for network analyzer 20.
When judging specifically whether antenna 70 to be measured satisfies the standing-wave ratio (SWR) requirement, only need judge whether the ratio of input signal and reflected signal gets final product less than the port reflection coefficient.If namely the ratio of input signal and reflected signal is less than the port reflection coefficient, can judge that antenna 70 to be measured satisfies the standing-wave ratio (SWR) requirement.
Embodiment of the present invention, do not need artificial progressively mobile probe and then realization to treat the collection of the test parameter of observation line 70 each transmitter unit 701, automation collection and the precision of test parameter that can realize treating observation line 70 each transmitter unit 701 is adjustable, human cost, time cost and testing apparatus cost can be reduced, and then testing efficiency and test mass can be improved.In addition, embodiment of the present invention can not only realize treating the phase test of observation line 70, can also realize treating the tests such as observation line 70 isolations and standing-wave ratio (SWR).
The present invention also provides a kind of antenna test method.
Consult Figure 10, Figure 10 is the process flow diagram of antenna test method embodiment of the present invention.Based on the Antenna testing system of above-mentioned embodiment, antenna test method embodiment of the present invention comprises the steps:
Step S101, matrix switch module is according to the first control signal gating the first test channel and the second test channel, the test signal that the first test channel sends in order to the output terminal that receives network analyzer.
Step S102, each transmitter unit of antenna to be measured obtains test signal and launches from the first test channel.
Step S103, sampling apparatus enable the probe of its relevant position with the phase parameter that gathers separately, successively each transmitter unit of antenna to be measured and the input end that phase parameter is sent to network analyzer from the second test channel according to the second control signal.
Wherein, matrix switch module comprises a plurality of test ports, input end and the output terminal of the equal selectivity connection matrix of a plurality of test ports switch module, wherein, a test port in the input end of matrix switch module and a plurality of test port connects and composes the first test channel, and another test port connects and composes the second test channel in the output terminal of matrix switch module and a plurality of test port, and the second test channel connects the first port of sampling apparatus.
Embodiment of the present invention, automation collection and the precision of test parameter that can realize treating each transmitter unit of observation line is adjustable, can reduce human cost, time cost and testing apparatus cost, and then can improve testing efficiency and test mass.In addition, embodiment of the present invention can not only realize treating the phase test of observation line, can also realize treating the tests such as observation line isolation and standing-wave ratio (SWR).
The above only is embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (14)
1. one kind is used for the radio-frequency module that antenna measurement is used, and it is characterized in that:
Described radio-frequency module comprises radio frequency body and the driving circuit that is arranged on the described radio frequency body, and described driving circuit is provided with signal input part, signal output part and at least one parameter receiving end;
Wherein, in order to connect the signal input part of driving circuit in another radio-frequency module, described parameter receiving end is connected with probe to described signal input part as bypass ends, and described probe is in order to gather the measurement parameter of antenna to be measured;
External control signal is input to described driving circuit from described signal input part, and described driving circuit enables described signal output part or selectivity according to described external control signal selectivity and enables at least one described parameter receiving end one of them.
2. radio-frequency module according to claim 1 is characterized in that,
Described radio frequency body one end is provided with connector, the other end is provided with web member, and described web member is used for connecting the connector of described another radio-frequency module and then described radio-frequency module and described another radio-frequency module being connected and fixed.
3. radio-frequency module according to claim 2 is characterized in that,
Described radio frequency body interior is provided with accommodation space, and described accommodation space is used for accommodating described web member.
4. one kind is used for the sampling apparatus that antenna measurement is used, it is characterized in that,
At least comprise the first radio-frequency module and the second radio-frequency module;
Described the first radio-frequency module comprises the first radio frequency body and the first driving circuit that is arranged on described the first radio frequency body, and described the first driving circuit is provided with first signal input end, first signal output terminal and at least one the first parameter receiving end;
External control signal is input to described the first driving circuit from described first signal input end, and described the first driving circuit enables described first signal output terminal or selectivity according to described external control signal selectivity and enables at least one described first parameter receiving end one of them;
Described the second radio-frequency module comprises the second radio frequency body and the second driving circuit that is arranged on described the second radio frequency body, described the second driving circuit is provided with secondary signal input end, secondary signal output terminal and at least one the second parameter receiving end, described the first parameter receiving end and described the second parameter receiving end are connected with probe, described probe is in order to gather the measurement parameter of antenna to be measured, and the described first signal output terminal of described the first driving circuit connects the described secondary signal input end of described the second driving circuit;
When described the first driving circuit enables described first signal output terminal, described first signal output terminal is input to described the second driving circuit with described external control signal from described secondary signal input end, and described the second driving circuit enables described secondary signal output terminal or selectivity according to described external control signal selectivity and enables at least one described second parameter receiving end one of them.
5. sampling apparatus according to claim 4 is characterized in that,
Described the second radio frequency body one end of the described first radio frequency body of described the first radio-frequency module and described the second radio-frequency module is provided with connector, the other end is provided with web member, and the described web member of described the first radio frequency body connects the connector of described the second radio frequency body and then described the first radio-frequency module and described the second radio-frequency module are connected and fixed.
6. sampling apparatus according to claim 5 is characterized in that,
Described the first radio frequency body and described the second radio frequency body interior are provided with accommodation space, the described accommodation space of described the first radio frequency body is used for accommodating the web member of described the first radio frequency body, and the described accommodation space of described the second radio frequency body is used for accommodating the web member of described the second radio frequency body.
7. sampling apparatus according to claim 4 is characterized in that,
Described sampling apparatus comprises housing, described the first radio-frequency module and described the second radio-frequency module all are arranged at described enclosure interior, wherein, be provided with the first port and the second port on the described housing, the described first signal input port of described the first driving circuit connects described the first port, described the first radio-frequency module be connected the described probe of separately each of the second radio-frequency module and all connect described the second port.
8. sampling apparatus according to claim 7 is characterized in that,
Described housing is the housing of penetrable electromagnetism.
9. an Antenna testing system is characterized in that, comprises each described sampling apparatus such as claim 4-8.
10. Antenna testing system according to claim 9 is characterized in that,
Described Antenna testing system comprises control terminal, network analyzer, matrix switch module and breakout box, and wherein, described breakout box is used for converting usb signal to the TTL signal;
Wherein, described control terminal is connected with described sampling apparatus by described breakout box, and described control terminal connects respectively the control end of described network analyzer and the control end of described matrix switch module;
And, the output terminal of described network analyzer, input end is connected respectively the input end of described matrix switch module, output terminal, wherein, described matrix switch module also comprises a plurality of test ports, the equal selectivity of a plurality of described test ports connects input end and the output terminal of described matrix switch module, wherein, a test port in the input end of described matrix switch module and a plurality of described test port connects and composes the first test channel, and another test port connects and composes the second test channel in the output terminal of described matrix switch module and a plurality of described test port, and described the second test channel connects the first port of described sampling apparatus;
Described the first test channel of the first control signal gating and the second test channel that described matrix switch module sends over according to described control terminal, the test signal that described the first test channel is sent in order to the output terminal that is received from described network analyzer, each transmitter unit of antenna to be measured obtains described test signal and described test signal is launched from described the first test channel, the second control signal that described sampling apparatus sends over through described breakout box according to described control terminal selects corresponding probe with separately, gather successively the phase parameter of described each transmitter unit of antenna to be measured, the input end of described network analyzer obtains described phase parameter from described the second test channel.
11. Antenna testing system according to claim 10 is characterized in that,
Described Antenna testing system comprises inhales the ripple wall;
Described suction ripple wall is used for absorbing the electromagnetic wave that described antenna to be measured leaks out from described sampling apparatus, and wherein, described suction ripple wall absorbs the electromagnetic wave of 700MHz-3GHz.
12. Antenna testing system according to claim 11 is characterized in that,
The part of described suction ripple wall electromagnetic wave absorption adopts high magnetic conductivity ferrite material.
13. Antenna testing system according to claim 10 is characterized in that,
Described breakout box is the USB-TTL controller.
14. an antenna test method comprises each described Antenna testing system such as claim 10-13, it is characterized in that, comprises the steps:
Matrix switch module is according to the first control signal gating the first test channel and the second test channel, the test signal that described the first test channel sends in order to the output terminal that receives network analyzer;
Each transmitter unit of antenna to be measured obtains described test signal and launches from described the first test channel;
Sampling apparatus enables the probe of its relevant position with the phase parameter that gathers separately, successively described each transmitter unit of antenna to be measured and the input end that described phase parameter is sent to described network analyzer from the second test channel according to the second control signal;
Wherein, described matrix switch module comprises a plurality of test ports, the equal selectivity of a plurality of described test ports connects input end and the output terminal of described matrix switch module, wherein, a test port in the input end of described matrix switch module and a plurality of described test port connects and composes the first test channel, and another test port connects and composes the second test channel in the output terminal of described matrix switch module and a plurality of described test port, and described the second test channel connects the first port of described sampling apparatus.
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