CN103728502A - Antenna test method and system and wireless terminal - Google Patents

Antenna test method and system and wireless terminal Download PDF

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Publication number
CN103728502A
CN103728502A CN201310750806.8A CN201310750806A CN103728502A CN 103728502 A CN103728502 A CN 103728502A CN 201310750806 A CN201310750806 A CN 201310750806A CN 103728502 A CN103728502 A CN 103728502A
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antenna
test
circuit
testing
signal
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CN201310750806.8A
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CN103728502B (en
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陈扬邦
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Honor Device Co Ltd
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Huawei Device Co Ltd
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Abstract

The invention provides an antenna test method and system and a wireless terminal, and relates to the field of antennae. The antenna test method and system and the wireless terminal can reduce the test error rate. The method is applied to the wireless terminal. The wireless terminal comprises an antenna and a test circuit, wherein the antenna is electrically connected with one end of the test circuit, and test equipment outside the wireless terminal is electrically connected with the other end of the test circuit. The method comprises the steps that the test circuit receives test signals sent by the test equipment and transmits the test signals to the antenna, and the test circuit receives reflected signals which are reflected by the antenna and correspond to the test signals and transmits the reflected signals to the test equipment so that the test equipment can determine parameters of the antenna according to the reflected signals. The antenna test method and system and the wireless terminal are applied to the antenna test technology.

Description

A kind of method and system of antenna measurement and wireless terminal
Technical field
The present invention relates to field of antenna, relate in particular to a kind of method and system and wireless terminal of antenna measurement.
Background technology
Along with enriching of wireless application, increasing antenna is integrated on same wireless terminal.For example, at mobile phone, panel computer, on the consumer wireless terminal such as Multifunctional player, may be integrated with GPS (Global Positioning System, GPS), Wireless Fidelity (Wireless Fidelity, Wi-Fi), global system for mobile communications (Global System for Mobile Communications, GSM)/CDMA (Code Division Multiple Access, CDMA/ Universal Mobile Telecommunications System (Universal Mobile Telecommunica-tions System, UMTS), near-field communication (Near Field Communication, multiple communication standard and corresponding multiple antennas thereof such as NFC).Therefore, the workload of antenna measurement is larger.How to check efficiently that whether each antenna performance is qualified, become a difficult problem of current research and development, production.
In prior art, provide the scheme of such a kind of test antenna: first, wireless terminal and antenna thereof are placed in to the assigned position of the test environments such as shielding box, pyrometric cone.Then, computing machine sends one group of AT(Attention) order control antenna emitting electromagnetic wave, the electromagnetic wave of test environment receiving antenna transmitting also sends to anolog base station by electromagnetic wave by radio-frequency cable (RF Cable).Then, anolog base station receives above-mentioned electromagnetic wave and analyzes the parameters such as the emissive power of antenna.Computing machine obtains above-mentioned parameter and judges that it is whether in given scope from anolog base station, thereby determines that whether antenna performance is qualified.
But such scheme is placed in the requirement of position of test environment to antenna very accurate, even if there is trickle skew the position of antenna with respect to the position of regulation, the parameters such as the emissive power of the antenna that anolog base station analyzes also can vary widely.Visible, because this scheme is very responsive to the position of antenna, easily cause the false failure rate of antenna measurement high.
Summary of the invention
Embodiments of the invention provide a kind of method and system and wireless terminal of antenna measurement, can reduce the false failure rate of antenna measurement.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, a kind of method of antenna measurement is provided, be applied to wireless terminal, described wireless terminal comprises antenna, it is characterized in that, described wireless terminal also comprises test circuit, and one end of described test circuit is electrically connected described antenna, the other end is electrically connected the testing apparatus of described wireless terminal outside, and described method comprises:
Described test circuit receives the test signal that described testing apparatus is sent, and described test signal is transferred to described antenna;
Described test circuit receives the reflected signal corresponding with described test signal by described antenna-reflected, and described reflected signal is transferred to described testing apparatus, so that described testing apparatus is determined the parameter of described antenna according to described test signal and described reflected signal.
In conjunction with first aspect, in the possible implementation of the first of first aspect, the passband of described test circuit outside the working band of described antenna, the frequency outside the working band that the frequency of described test signal is described antenna.
In conjunction with the possible implementation of the first of first aspect, in the possible implementation of the second of first aspect, described test circuit comprises high pass circuit, low pass circuit, with any one in resistance circuit.
The arbitrary possible implementation of the second in conjunction with the first of first aspect or first aspect to first aspect, in the third possible implementation of first aspect, described parameter comprises at least one following parameter: return loss, voltage standing wave ratio (VSWR).
Second aspect, provides a kind of wireless terminal, and described wireless terminal comprises antenna, and described wireless terminal also comprises test circuit, one end electrical connection antenna of described test circuit, and the other end is electrically connected the testing apparatus of described wireless terminal outside;
Described test circuit, is transferred to described antenna for the test signal receiving and described testing apparatus is sent;
Described antenna, for receiving described test signal, and the reflection reflected signal corresponding with described test signal;
Described test circuit also for: receive and also the reflected signal of described antenna be transferred to described testing apparatus, so that described testing apparatus is determined the parameter of described antenna according to described test signal and described reflected signal.
In conjunction with second aspect, in the possible implementation of the first of second aspect, the passband of described test circuit outside the working band of described antenna, the frequency outside the working band that the frequency of described test signal is described antenna.
In conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second of second aspect, described test circuit comprises high pass circuit, low pass circuit, with any one in resistance circuit.
In conjunction with the possible implementation of the second of second aspect, in the third possible implementation of second aspect, described test circuit comprises at least one group of test circuit, described antenna is at least one antenna, described test circuit is corresponding one by one with described antenna, and the passband of described test circuit is outside the working band of its corresponding antenna;
Described test circuit, is transferred to corresponding antenna for the test signal receiving and described testing apparatus is sent;
Described antenna, for receiving described test signal, and the reflection reflected signal corresponding with described test signal;
Described test circuit also for: receive and also the reflected signal of corresponding antenna be transferred to described testing apparatus, so that described testing apparatus is determined the parameter of described antenna according to described test signal and described reflected signal.
In conjunction with the possible implementation of the second of second aspect, in the 4th kind of possible implementation of second aspect, described test circuit is a test circuit that passband is adjustable, and described antenna is many antennas;
Described test circuit, is transferred to antenna to be measured for the test signal receiving and described testing apparatus is sent, and described antenna to be measured is the current antenna of testing in described many antennas;
Described antenna to be measured, for receiving described test signal, and the reflection reflected signal corresponding with described test signal;
Described test circuit also for: receive and also the reflected signal of described antenna to be measured be transferred to described testing apparatus, so that described testing apparatus is determined the parameter of described antenna according to described test signal and described reflected signal;
Wherein, the passband adjustment of described test circuit is positioned at outside the working band of described antenna to be measured.
In conjunction with four kinds of arbitrary possible implementations of the first to the of second aspect or second aspect, in the 5th kind of possible implementation of second aspect, described wireless terminal also comprises interface, for being electrically connected described test circuit and described testing apparatus.
The third aspect, provides a kind of system of antenna measurement, comprises wireless terminal and testing apparatus, described wireless terminal comprises antenna, described wireless terminal also comprises test circuit, and one end of described test circuit is electrically connected described antenna, and the other end is electrically connected described testing apparatus;
Described testing apparatus is sent test signal;
Described test circuit receives and described test signal is transferred to described antenna;
Test signal described in described antenna reception, and the reflection reflected signal corresponding with described test signal;
Described test circuit receives and described reflected signal is transferred to described testing apparatus;
Described in described testing apparatus receives, transmit and according to described test signal and described reflected signal, determine the parameter of described antenna.
In conjunction with the third aspect, in the possible implementation of the first of the third aspect, the passband of described test circuit outside the working band of described antenna, the frequency outside the working band that the frequency of described test signal is described antenna.
In conjunction with the possible implementation of the first of the third aspect, in the possible implementation of the second of the third aspect, described system also comprises tuned circuit, and one end of described tuned circuit is electrically connected described test circuit, and the other end is electrically connected described testing apparatus;
Described tuned circuit is used for: optimize described reflected signal.
The method and system of the antenna measurement providing according to the embodiment of the present invention and wireless terminal, the test signal that antenna reception is sent via test circuit by testing apparatus, then, the reflected signal corresponding with described test signal of described antenna-reflected sent to described testing apparatus via identical test circuit.Like this, described testing apparatus can be determined the parameter of described antenna according to described test signal and described reflected signal, thereby realizes antenna measurement.Than needing in prior art the wireless terminal to be placed in, test environment is tested and to require antenna to be placed in the position of test environment very accurate, according to the method for antenna measurement provided by the invention, can utilize dexterously the test circuit of wireless terminal inside to carry out antenna measurement, thereby can avoid the high problem of false failure rate that requires the reasons such as harshness to cause because of test condition, therefore, can reduce the false failure rate of antenna measurement.
Accompanying drawing explanation
The structural representation of the wireless terminal that Figure 1A provides for the embodiment of the present invention one;
The structural representation of the wireless terminal that the variant embodiment that Figure 1B is the embodiment of the present invention one provides;
The structural representation of the wireless terminal that another variant embodiment that Fig. 1 C is the embodiment of the present invention one provides;
The structural representation of the wireless terminal that the another variant embodiment that Fig. 1 D is the embodiment of the present invention one provides;
The process flow diagram of the method for the antenna measurement that Fig. 2 provides for the embodiment of the present invention two;
The schematic diagram of the system that Fig. 3 is the antenna measurement that provides in the variant embodiment of the embodiment of the present invention three;
The schematic diagram of the system of the antenna measurement that Fig. 4 provides for the embodiment of the present invention four.
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.Based on the embodiment 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.
As shown in Figure 1A, the embodiment of the present invention one provides a kind of wireless terminal 10, and wireless terminal 10 comprises antenna 11 and test circuit 12.Wherein, test circuit 12 is arranged on wireless terminal 10 inside, one end electrical connection antenna 11 of test circuit 12, the testing apparatus 30 of other end electrical connection wireless terminal 10 outsides.Concrete, one end of test circuit 12 for example can utilize wire directly with being electrically connected of antenna 11, also can use being electrically connected of coupling mechanism and antenna 11.Testing apparatus 30 for example can be measured for network analyzer or other equipment of the parameter (such as return loss, voltage standing wave ratio (VSWR) etc.) of antenna.It should be noted that, the concrete connected mode of one end of above-mentioned test circuit 12 and antenna 11, and testing apparatus 30 be network analyzer only for example, the present invention is not done to any restriction.
In the process of antenna measurement, the test signal that test circuit 12 sends for receiving testing apparatus 30, and described test signal is transferred to antenna 11; The test signal that antenna 11 transmits for receiving test circuit 12, and the reflection reflected signal corresponding with described test signal; The reflected signal that test circuit 12 also reflects for receiving antenna 11, and described reflected signal is transferred to testing apparatus 30, so that testing apparatus 30 is determined the parameter of antenna 11 according to described test signal and described reflected signal.
Wherein, preferably, the passband of test circuit 12 is outside the working band of antenna 11, and described test signal is the electric signal of frequency in the passband of test circuit 12, and also, described test signal is the electric signal of frequency outside the working band of antenna 11.Passband by test circuit 12 is set is outside the working band of antenna 11, the radio-frequency module 15(of wireless terminal 10 inside is with reference to Figure 1B, 1C) signal that sends can not enter testing apparatus, can prevent that radio-frequency module from affecting the test of antenna 11, and, also can prevent that test circuit 12 from affecting the normal work of radio-frequency module 15.
For the passband that realizes test circuit 12 is outside the working band of antenna 11, test circuit 12 can be for high pass circuit, low pass circuit, with any one in resistance circuit.
In the present embodiment, by (the Printed Circuit Board of the printed circuit board (PCB) at wireless terminal 10, PCB) antenna 11 on, carries out circuit and cabling processing obtains test circuit 12, so that can receive the test signal that outside testing apparatus 30 sends via test circuit 12.When impedance mismatch, antenna 11 can not all absorb the high-frequency energy of transmission on test circuit 12, and unabsorbed part energy will reflect back formation reflection wave, i.e. described reflected signal on test circuit 12.Testing apparatus 30 is determined the parameter of described antenna 11 according to described test signal and described reflected signal: return loss (return loss) or voltage standing wave ratio (VSWR) (Voltage Standing Wave Ratio, VSWR).Certainly, testing apparatus 30 also can be determined return loss and voltage standing wave ratio (VSWR) simultaneously.According to the described parameter of antenna 11, can check that whether the performance of antenna 11 is qualified, and then strict control antenna supplied materials.
It should be noted that, the reflected signal problems of too causing for fear of the circuit (comprising test circuit 12) between testing apparatus 30 and antenna 11 and antenna 11 mismatches, need suitably to debug the circuit between testing apparatus 30 and antenna 11, for example debugging is reserved in the upper match circuit (belonging to a part for test circuit 12) near external interface of PCB, and, control circuit impedance between testing apparatus 30 and antenna 11 with and control radio frequency line impedance on PCB printed circuit board (PCB) 10 for equating, make can demonstrate antenna high frequency characteristics waveform in testing apparatus 30.
In the wireless terminal providing at the present embodiment, test circuit is for receiving the test signal of being sent by testing apparatus and this test signal being sent to antenna; Antenna is for receiving this test signal the reflection reflected signal corresponding with this test signal; Test circuit is also transferred to testing apparatus by the reflected signal of antenna.So, described testing apparatus can be determined the parameter of described antenna according to described test signal and described reflected signal, thereby realizes antenna measurement.Than needing that wireless terminal is placed in to test environment in prior art, test and require antenna to be placed in position very accurate of test environment, according to wireless terminal provided by the invention, can utilize dexterously the test circuit of wireless terminal inside to carry out antenna measurement, thereby can avoid the high problem of false failure rate that requires the reasons such as harshness to cause because of test condition, therefore, can reduce the false failure rate of antenna measurement.
In the wireless terminal 10 providing at embodiment mono-, antenna 11 is not limited to one, can comprise many; Test circuit 12 is also not limited to one, can comprise multiple.Wherein, antenna and test circuit can be corresponding one by one, can be also the corresponding test circuits of many antennas.Below, in conjunction with Figure 1B to Fig. 1 D, the facilities of antenna and test circuit is described, and in following examples, take antenna 11, to be two antennas 111 and antenna 112 as being set, situation that terminal comprises many antennas describes as example.Although in the explanation of following examples take test circuit 12 be high pass circuit 13 as example, those skilled in the art also can use low pass circuit or replace high pass circuit 13 with resistance circuit and obtain other embodiment.
As shown in Figure 1B, in a variant embodiment of embodiment mono-, two antennas 111 and respectively corresponding two test circuits of antenna 112, wherein, test circuit is high pass circuit 13, and the passband of high pass circuit 13 and the working band of its corresponding antenna corresponding.
In antenna measurement process, take antenna 111 as example, high pass circuit 13(is the high pass circuit in left side in Figure 1B) for the test signal receiving and testing apparatus 30 is sent, be transferred to corresponding antenna 111; Antenna 111 is for receiving described test signal, and the reflection reflected signal corresponding with described test signal; High pass circuit 13 also for: receive and also the reflected signal of corresponding antenna 111 be transferred to testing apparatus 30, so that testing apparatus 30 is determined the parameter of antenna 111 according to described test signal and described reflected signal.The test process of antenna 112 can directly obtain according to the test process of antenna 111.
As shown in Figure 1 C, in another variant embodiment of embodiment mono-, two antennas 111 and the corresponding test circuit of antenna 112, wherein, test circuit is high pass circuit 13a, and high pass circuit 13a is the adjustable high pass circuit of passband.
In antenna measurement process, take antenna 111 as antenna to be measured as example, high pass circuit 13a is transferred to antenna 111 for the test signal that receives and testing apparatus 30 is sent; Antenna 111 is for receiving described test signal, and the reflection reflected signal corresponding with described test signal; High pass circuit 13a also for: receive and also the reflected signal of antenna 111 be transferred to testing apparatus 30, so that testing apparatus 30 is determined the parameter of antenna 111 according to described test signal and described reflected signal.Wherein, the passband adjustment of high pass circuit 13a is positioned at outside the working band of antenna 111.In like manner, when test antenna 112, the passband of high pass circuit 13a can be adjusted outside the working band that is positioned at antenna 112.
In the embodiment shown in Figure 1B and Fig. 1 C, by being set, high pass circuit 13 or 13a make described test signal and described reflected signal all can pass through high pass circuit 13 or 13a, and, the such as transmitter of radio-frequency module 15(of wireless terminal 10 self) and the input signal that sends to antenna 11 can not pass through high pass circuit 13 or 13a.Therefore, by high pass circuit is set, make radio-frequency module 15 not affect the test of antenna, and high pass circuit does not affect the normal work of radio-frequency module 15 self yet.
As shown in Fig. 1 D, on the basis of above-mentioned arbitrary embodiment, the wireless terminal 10 that the another variant embodiment of the embodiment of the present invention one provides also comprises interface 14, for being electrically connected described test circuit 12 and testing apparatus 30.
Particularly, while carrying out circuit and cabling processing on described PCB, utilize dexterously for example USB (universal serial bus) of interface 14((Universal Serial Bus, the USB) interface of wireless terminal 10), test circuit 12 and testing apparatus 30 can be coupled together.Wherein, preferably, utilize in wireless terminal 10 existing interface as interface 14.Therefore, when test antenna 11, only interface 14 connecting test equipment 30 need be utilized, antenna measurement can be carried out.Visible, the assembling process of Antenna testing system is very simple, is convenient to improve the efficiency of antenna measurement.
As shown in Figure 2, the embodiment of the present invention two provides a kind of method of antenna measurement, be applied to the wireless terminal that above-described embodiment one and variant embodiment thereof provide, described wireless terminal comprises antenna, described wireless terminal also comprises test circuit, one end of described test circuit is electrically connected described antenna, and the other end is electrically connected the testing apparatus of described wireless terminal outside, and described method comprises:
Step 21, test circuit receive the test signal that testing apparatus is sent, and test signal are transferred to antenna.
While starting to test, tester can send test signal by operational test set.Because one end of the test circuit in wireless terminal is electrically connected with testing apparatus, therefore test circuit can receive the test signal that this testing apparatus is sent.Because the other end of test circuit is connected with the antenna electric in wireless terminal, therefore test circuit can be transferred to the antenna in wireless terminal by the test signal receiving again.So, antenna can receive the test signal being sent by described testing apparatus via described test circuit.
Step 22, test circuit receive the reflected signal corresponding with test signal by antenna-reflected, and reflected signal is transferred to testing apparatus, so that testing apparatus is determined the parameter of antenna according to test signal and reflected signal.
In this step, antenna, after receiving the test signal that testing apparatus sends, on the one hand, outwards gives off energy with electromagnetic form, on the other hand, with the form of reflection wave, reflects the reflected signal corresponding with test signal on test circuit.The reflected signal of the test circuit receiving antenna that one end is connected with antenna electric, and this reflected signal is transferred to the testing apparatus of the circuit other end.Like this, testing apparatus can receive the reflected signal of antenna and according to described test signal and described reflected signal, determine the parameter of antenna.Described parameter comprises at least one in return loss, voltage standing wave ratio (VSWR).
Because wireless terminal and antenna thereof are without being placed in test environment, therefore, in the process of antenna detection, not harsh to the requirement of test environment and measuring accuracy.Like this, not only can avoid wireless terminal to be measured to be placed in the erroneous judgement that the human factors such as the position of test environment is improper cause, improve first-pass yield, and, testing efficiency and even production efficiency can be improved.
In step 21 and step 22, preferably, the frequency of test signal can be set within the passband of test circuit, and the passband of test circuit is set for example, outside the working band of the radio-frequency module (transmitter) of described antenna and correspondence thereof, test signal can be passed through test circuit thus, and the signal that described radio-frequency module sends to antenna can not pass through test circuit.For example, in described radio-frequency module work, being described radio-frequency module sends in the situation of input signal to described antenna, and because the frequency of described input signal is not in the passband of described test circuit, therefore described input signal can not send to described testing apparatus via described test circuit.So, can either prevent the interference of radio-frequency module to antenna measurement, can prevent that again test circuit from impacting the normal work of radio-frequency module and antenna.
Further, for the passband that realizes test circuit is outside the working band of antenna, test circuit can be for high pass circuit, low pass circuit, with any one in resistance circuit.
The method of the antenna measurement providing according to the embodiment of the present invention, test circuit receives the test signal that described testing apparatus is sent, and this test signal is transferred to antenna; At antenna reception, to this test signal and after launching the reflected signal corresponding with described test signal, test circuit receives also this reflected signal is transferred to described testing apparatus.Like this, described testing apparatus can be determined the parameter of described antenna according to described test signal and described reflected signal, thereby realizes antenna measurement.Than needing in prior art the wireless terminal to be placed in, test environment is tested and to require antenna to be placed in the position of test environment very accurate, according to the method for antenna measurement provided by the invention, can utilize dexterously the test circuit of wireless terminal inside to carry out antenna measurement, thereby can avoid the high problem of false failure rate that requires the reasons such as harshness to cause because of test condition, therefore, can reduce the false failure rate of antenna measurement.
As shown in Figure 1A, the embodiment of the present invention three provides a kind of system of antenna measurement, and described system comprises wireless terminal 10 and testing apparatus 30, and described wireless terminal 10 comprises antenna 11 and test circuit 12.One end electrical connection antenna 11 of test circuit 12, other end electrical connection testing apparatus 30.Wireless terminal 10 can be the wireless terminal of above-mentioned arbitrary embodiment.
The process that described system is carried out antenna measurement is as follows:
Testing apparatus 30 is sent test signal;
Test circuit 12 receives and described test signal is transferred to antenna 11;
Antenna 11 receives described test signal, and the reflection reflected signal corresponding with described test signal;
Test circuit 12 receives and described reflected signal is transferred to testing apparatus 30;
Described in testing apparatus 30 receives, transmit and according to described test signal and described reflected signal, determine the parameter of antenna 11.
Test circuit 12 can be for high pass circuit, low pass circuit, with any one in resistance circuit.Preferably, the passband of test circuit 12 is outside the working band of antenna 11, and the frequency of test signal is the frequency outside the working band of antenna 11.
As seen from the above, than needing in prior art the wireless terminal to be placed in, test environment is tested and to require antenna to be placed in the position of test environment very accurate, according to the system of antenna measurement provided by the invention, by testing apparatus that test circuit connects antenna and wireless terminal outside is set to carry out antenna measurement in wireless terminal inside, can avoid the high problem of false failure rate that requires the reasons such as harshness to cause because of test condition, therefore, can reduce the false failure rate of antenna measurement.
As shown in Figure 3, in the variant embodiment of the embodiment of the present invention three, the system of described antenna measurement also comprises tuned circuit, one end electrical connection test circuit 12 of described tuned circuit 31, other end electrical connection testing apparatus 30; Tuned circuit 31 for: optimize described reflected signal.The reflected signal of utilization after tuned circuit 31 is optimized, when testing apparatus 30 is tested, the detection waveform of demonstration screen display thereon becomes more desirable, and therefore testing apparatus 30 can be determined the antenna parameter that precision is higher.
As shown in Figure 4, the embodiment of the present invention four is the specific embodiment of the embodiment of the present invention three and variant embodiment thereof, in the system shown in Fig. 4, wireless terminal 10 is electrically connected with tuned circuit 31 by interface 14, tuned circuit 31 is electrically connected with testing apparatus 30 by concentric cable 41, testing apparatus 30 general purpose interface bus (General Purpose Interface Bus, GPIB) 43 are electrically connected with computing machine 42.In the present embodiment, interface 14 is take usb 14 as example, and testing apparatus 30 is take network analyzer 30 as example.
In wireless terminal 10, test circuit 12 passes through PCB cabling to the pin of usb 14, utilize the pin of usb 14 to serve as the bridge of antenna 11 transfers, when antenna 111(or antenna 112) reflected signal by PCB impedance line, arrived after usb 14, utilize antenna 111(or antenna 112) waveform of higher order resonances that self produces, finally on network analyzer 30, show, carry out as the measurement of the indexs such as return loss or voltage standing wave ratio (VSWR).
Computing machine 42 reads the numerical value of return loss or the voltage standing wave ratio (VSWR) of network analyzer 30 by general purpose interface bus 43, and judge that described numerical value is whether in the scope arranging, thereby the consistance that can adjudicate antenna performance reaches the object that detects antenna fast and stable.Than needing in prior art the wireless terminal to be placed in, test environment is tested and to require antenna to be placed in the position of test environment very accurate, according to the system of antenna measurement provided by the invention, can avoid the high problem of false failure rate that requires the reasons such as harshness to cause because of test condition, therefore, can reduce the false failure rate of antenna measurement.
As seen from the above, owing to adopting antenna passive detection scheme (test signal is sent by the testing apparatus of wireless terminal outside), with respect to prior art, adopt the active detection scheme of antenna (test signal is sent by the radio-frequency module of wireless terminal inside), can reduce the workload of software, without going to write corresponding AT order for every a product.And, from whole operation, come, from inserting USB, start AT order, to the cycle of program end of run, reduced greatly detection time with respect to prior art, therefore can enhance productivity.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.

Claims (13)

1. the method for an antenna measurement, be applied to wireless terminal, described wireless terminal comprises antenna, it is characterized in that, described wireless terminal also comprises test circuit, one end of described test circuit is electrically connected described antenna, and the other end is electrically connected the testing apparatus of described wireless terminal outside, and described method comprises:
Described test circuit receives the test signal that described testing apparatus is sent, and described test signal is transferred to described antenna;
Described test circuit receives the reflected signal corresponding with described test signal by described antenna-reflected, and described reflected signal is transferred to described testing apparatus, so that described testing apparatus is determined the parameter of described antenna according to described test signal and described reflected signal.
2. method according to claim 1, is characterized in that, the passband of described test circuit outside the working band of described antenna, the frequency outside the working band that the frequency of described test signal is described antenna.
3. method according to claim 2, is characterized in that, described test circuit comprises high pass circuit, low pass circuit, with any one in resistance circuit.
4. according to the method described in claim 1-3, it is characterized in that, described parameter comprises at least one following parameter: return loss, voltage standing wave ratio (VSWR).
5. a wireless terminal, described wireless terminal comprises antenna, it is characterized in that, described wireless terminal also comprises test circuit, one end electrical connection antenna of described test circuit, the other end is electrically connected the testing apparatus of described wireless terminal outside;
Described test circuit, is transferred to described antenna for the test signal receiving and described testing apparatus is sent;
Described antenna, for receiving described test signal, and the reflection reflected signal corresponding with described test signal;
Described test circuit also for: receive and also the reflected signal of described antenna be transferred to described testing apparatus, so that described testing apparatus is determined the parameter of described antenna according to described test signal and described reflected signal.
6. wireless terminal according to claim 5, is characterized in that, the passband of described test circuit outside the working band of described antenna, the frequency outside the working band that the frequency of described test signal is described antenna.
7. wireless terminal according to claim 6, is characterized in that, described test circuit comprises high pass circuit, low pass circuit, with any one in resistance circuit.
8. wireless terminal according to claim 7, it is characterized in that, described test circuit comprises at least one group of test circuit, described antenna is at least one antenna, described test circuit is corresponding one by one with described antenna, and the passband of described test circuit is outside the working band of its corresponding antenna;
Described test circuit, is transferred to corresponding antenna for the test signal receiving and described testing apparatus is sent;
Described antenna, for receiving described test signal, and the reflection reflected signal corresponding with described test signal;
Described test circuit also for: receive and also the reflected signal of corresponding antenna be transferred to described testing apparatus, so that described testing apparatus is determined the parameter of described antenna according to described test signal and described reflected signal.
9. wireless terminal according to claim 7, is characterized in that, described test circuit is a test circuit that passband is adjustable, and described antenna is many antennas;
Described test circuit, is transferred to antenna to be measured for the test signal receiving and described testing apparatus is sent, and described antenna to be measured is the current antenna of testing in described many antennas;
Described antenna to be measured, for receiving described test signal, and the reflection reflected signal corresponding with described test signal;
Described test circuit also for: receive and also the reflected signal of described antenna to be measured be transferred to described testing apparatus, so that described testing apparatus is determined the parameter of described antenna according to described test signal and described reflected signal;
Wherein, the passband adjustment of described test circuit is positioned at outside the working band of described antenna to be measured.
10. according to the arbitrary described wireless terminal of claim 5 to 9, it is characterized in that, described wireless terminal also comprises interface, for being electrically connected described test circuit and described testing apparatus.
The system of 11. 1 kinds of antenna measurements, comprises wireless terminal and testing apparatus, and described wireless terminal comprises antenna, it is characterized in that, described wireless terminal also comprises test circuit, and one end of described test circuit is electrically connected described antenna, and the other end is electrically connected described testing apparatus;
Described testing apparatus is sent test signal;
Described test circuit receives and described test signal is transferred to described antenna;
Test signal described in described antenna reception, and the reflection reflected signal corresponding with described test signal;
Described test circuit receives and described reflected signal is transferred to described testing apparatus;
Described in described testing apparatus receives, transmit and according to described test signal and described reflected signal, determine the parameter of described antenna.
12. systems according to claim 11, is characterized in that, the passband of described test circuit outside the working band of described antenna, the frequency outside the working band that the frequency of described test signal is described antenna.
13. systems according to claim 12, is characterized in that, described system also comprises tuned circuit, and one end of described tuned circuit is electrically connected described test circuit, and the other end is electrically connected described testing apparatus;
Described tuned circuit is used for: optimize described reflected signal.
CN201310750806.8A 2013-12-31 2013-12-31 The method and system and wireless terminal of a kind of antenna measurement Active CN103728502B (en)

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CN201310750806.8A CN103728502B (en) 2013-12-31 2013-12-31 The method and system and wireless terminal of a kind of antenna measurement

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Application Number Priority Date Filing Date Title
CN201310750806.8A CN103728502B (en) 2013-12-31 2013-12-31 The method and system and wireless terminal of a kind of antenna measurement

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CN103728502A true CN103728502A (en) 2014-04-16
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CN106980052A (en) * 2016-01-19 2017-07-25 富泰华工业(深圳)有限公司 Antenna band switching system and method
CN106130664A (en) * 2016-06-21 2016-11-16 广东欧珀移动通信有限公司 The antenna test method of mobile terminal and test system
CN109660304A (en) * 2017-10-10 2019-04-19 川升股份有限公司 Artificial intelligence Antenna Design platform
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