CN105429714B - A kind of T/R component test devices and equipment safety method of calibration - Google Patents
A kind of T/R component test devices and equipment safety method of calibration Download PDFInfo
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- CN105429714B CN105429714B CN201510737622.7A CN201510737622A CN105429714B CN 105429714 B CN105429714 B CN 105429714B CN 201510737622 A CN201510737622 A CN 201510737622A CN 105429714 B CN105429714 B CN 105429714B
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Abstract
The invention provides a kind of T/R component test devices and equipment safety method of calibration, the device introduces a single-pole double-throw switch (SPDT), transmitting output channel is subjected to physical separation with input channel is received, attenuator or coupler are built in transmitting output channel, so will not influence the noise coefficient of receiving channel and the test of input port standing-wave ratio because passage insertion loss is big.Compared with existing test device, testing efficiency is improved, reduces influence of the repetition line to test accuracy and repeatability, and reduces the quantity of the test accessories such as attenuator or coupler, reduces the construction cost of device, facilitates the integrated of device.Security verification before T/R component test device uses, the connected state switched by off state register pair carries out inquiry operation, it ensure that the link position of each switch is correct, recycle the connectedness of small-power low-frequency excitation signal authentication device, ensure that tester is not burned out during switch fault, improves the security of device.
Description
Technical field
The present invention relates to T/R module testings field, and in particular to a kind of T/R component test devices and equipment safety verification
Method.
Background technology
It is defeated in addition with radio frequency mainly comprising three transmission channel, receiving channel and drive control parts in T/R components
Enter the component interface such as output, low-frequency connector part.Transmission channel mainly completes the amplification of rf excitation signal, and exports to feedback
Gauze network；The echo-signal that receiving channel receives antenna is amplified, and ensures relatively low noise coefficient；The transmit-receive switch of component is cut
Change and phase, the control of decay are completed by drive control part.
T/R components have the characteristics that more passage, high or low power and deposited and multiplexed port, and index species is more, it is necessary to more
Kind tester could be completed to test.So-called high or low power is simultaneously deposited, i.e., transmission channel output power, receiving channel power are small；
For multiplexed port, that is, launch output port and namely receive input port, launch input port i.e. Rreceive output end
Mouthful, it is the working system of a timesharing certainly.Therefore, the test of T/R components is realized more difficult, also extremely complex, mostly
Complete to test using test system, this just needs to nurse one's health receiving and transmitting signal, while realizes TCH test channel using switching network
Automatically switch.
Because T/R component transmission signal power is generally large, it can not input in instrument and directly be tested, be usually at present
First in each transmitting output port connection attenuator or coupler, power is down to a reasonable level, then again by opening
The switching of pass network, which inputs into tester (such as vector network analyzer, power analyzer and frequency spectrograph) launch, leads to
Road performance parameter test.It is this directly high-power signal decay/be coupled as the method for low-power level signal can be effective
Tester is protected not to be burned out.Test for receiving channel performance parameter, in principle substantially and identical, simply needed for
Instrument species and TCH test channel it is different.
Although prior art can solve the test of T/R components transmitting-receiving parameter, following several shortcomings be present：
1. due to the part of attenuator or coupler as TCH test channel, and launch output channel and receive input and lead to
Road is fractional reuse, so as to cause passage insertion loss larger.When receiving channel is tested, if do not dismantle attenuator or
The test accessories such as coupler, then just occur can not test noise coefficient and receive input port standing-wave ratio the problem of.Specifically
Reason is：
A) excessive passage insertion loss will reduce the measurement sensitivity of acoustic meter, if passage insertion loss is more than 20dB,
The standard noise power of noise source output will be less than acoustic meter receiving sensitivity, and noise coefficient test can not be carried out.And specific
Engineering practice in, as long as the power output of T/R component transmission channels is more than 50W (peak value), passage insertion loss typically will
More than 20dB.
B) the same insertion loss because of passage is excessive, receives the vector network analysis needed for the test of input port standing-wave ratio
The situation that useless source leakage signal may be also also bigger than useful reflection coupling signal power also occurs in instrument, and this can not
Eliminated the effects of the act using calibrating mode, cause to receive input port standing-wave ratio test result and actual value deviation is larger, can not adopt
Letter.
2. in noise coefficient and need to dismantle attenuator or coupler when receiving the test of input port standing-wave ratio, this also shadow
Testing efficiency has been rung, has also been degrading test accuracy and repeatability index.
3. when T/R component numbers of channels are more, each passage will connect an attenuator or coupler, and this also adds
The big difficulty of the system integration, system Construction cost are also higher.
The content of the invention
If the first object of the present invention is not dismantled attenuator or coupler for existing T/R component test devices,
Then noise coefficient and reception input port standing-wave ratio can not test, and once disassemble attenuator or coupler, can influence to fill again
The problem of testing efficiency, the degree of accuracy and repeatability for putting, and the problem of existing T/R component test devices construction cost is high,
The invention provides a kind of T/R component test devices.
The present invention uses following technical scheme：
A kind of T/R component test devices, including be sequentially connected the detecting instrument connect, the first multiselect switch, the second multiselect and open
Close and switch phase with T/R components, in addition to the 3rd multiselect switch and the first single-pole double-throw switch (SPDT), the T/R components and the 3rd multiselect
Connection, the 3rd multiselect switch are connected with the moved end on the first single-pole double-throw switch (SPDT), and first on the first single-pole double-throw switch (SPDT) is not
Moved end is connected with the 4th multiselect by attenuator or coupler and switched, and the 4th multiselect switch is connected with transmitting output tester,
On first single-pole double-throw switch (SPDT) second not moved end be connected with the 5th multiselect switch, the 5th multiselect switch is connected with reception input survey
Test instrument.
Preferably, the detecting instrument includes vector network analyzer, signal generator, spectrum analyzer and noise coefficient
Analyzer, the transmitting output tester include power analyzer, and the reception input test instrument includes noise source.
Preferably, in addition to the second single-pole double-throw switch (SPDT), the 3rd single-pole double-throw switch (SPDT) and the 4th single-pole double-throw switch (SPDT), it is described
The first port of vector network analyzer is connected with the first multiselect switch, the second port of vector network analyzer and the second hilted broadsword
The moved end of commutator is connected, two of the second single-pole double-throw switch (SPDT) not moved end connect the 4th multiselect switch and the 5th multiselect respectively
Switch, signal generator is connected with the moved end of the 3rd single-pole double-throw switch (SPDT), two of the 3rd single-pole double-throw switch (SPDT) not moved end difference
The first multiselect switch and the 5th multiselect switch are connected, spectrum analyzer is connected with the moved end of the 4th single-pole double-throw switch (SPDT), and the 4th is single
Moved end does not connect the first multiselect switch and the 4th multiselect switch to two of double-pole double throw switch respectively.
Preferably, the first multiselect switch, the second multiselect switch, the 3rd multiselect switch, the 4th multiselect switch, more than the 5th
Select switch, the first single-pole double-throw switch (SPDT), the second single-pole double-throw switch (SPDT), the 3rd single-pole double-throw switch (SPDT) and the 4th single-pole double-throw switch (SPDT) equal
It is configured with an on off state register.
The second object of the present invention there is provided a kind of security verification side of above-described T/R component test devices
Method.
A kind of security verification method of T/R component test devices, including：
Step 1：Inquire about on off state, on off state register SiIn different flag bits correspond to the difference of each switch
Position SiDj, SiTo the label of inductive switch, DjTo the location label in inductive switch, opened according to the inquiry of on off state register is all
Pass whether be placed on correct link position, if on off state register show it is correct to the link position of inductive switch, no
Position switching control is carried out to the switch, if on off state register shows the link position mistake to inductive switch, to this
Switch carries out position switching control, the switch is connected on correct position, and sets in corresponding on off state register
Flag bit；
Step 2：Pumping signal power is calculated, pumping signal power increases for transmission power and T/R the components transmitting of T/R components
The difference of benefit, the transmission power of T/R components are not more than 20dBm；
Step 3：T/R component test device connectivity checkings, the pumping signal power in T/R components in input step 2,
Test result is obtained in signal testing mechanism, by test result compared with desired value, if comparative result is permitted in error
Perhaps in the range of, then prove that T/R component test devices connect successfully, otherwise it is assumed that the connection failure of T/R component test devices；
Step 4：Terminate equipment safety check test.
The invention has the advantages that：
The invention provides a kind of T/R component test devices, the device introduces a single-pole double-throw switch (SPDT), and transmitting is exported
Passage and reception input channel carry out physical separation, and attenuator or coupler are built in transmitting output channel, so will not
The noise coefficient of receiving channel and the test of input port standing-wave ratio are influenceed because passage insertion loss is big.Filled with existing test
Put and compare, improve testing efficiency, reduce influence of the repetition line to test accuracy and uniformity, and reduce decay
The quantity of the test accessories such as device or coupler, the construction cost of device is reduced, facilitate the integrated of device.
The security verification method of T/R component test devices, the connected state switched by off state register pair enter
Row inquiry operation, it is ensured that the link position of each switch is correct, then utilizes small-power low-frequency excitation signal authentication device
Connectedness, ensure that tester is not burned out during switch fault, is ensured the normal operation of test process, is improved the safety of device
Property.
Brief description of the drawings
Fig. 1 is the structural representation of T/R component test devices provided by the invention.
Fig. 2 is the connection diagram of the second single-pole double-throw switch (SPDT).
Fig. 3 is the connection diagram of the 3rd single-pole double-throw switch (SPDT).
Fig. 4 is the connection diagram of the 4th single-pole double-throw switch (SPDT).
Embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings：
Embodiment 1
With reference to Fig. 1 to Fig. 4, a kind of T/R component test devices, including be connected detecting instrument, the first multiselect switch K1,
Second multiselect switchs K2 and T/R components, in addition to the 3rd multiselect switch K3 and the first single-pole double-throw switch (SPDT) K4.
T/R components are connected with the 3rd multiselect switch K3, on the 3rd multiselect switch K3 and the first single-pole double-throw switch (SPDT) K4
Moved end is connected, and moved end is not connected with the 4th multiselect by attenuator or coupler T1 and opened first on the first single-pole double-throw switch (SPDT) K4
K5 is closed, the 4th multiselect switch K5, which is connected with, launches output tester, and moved end does not connect second on the first single-pole double-throw switch (SPDT) K4
The 5th multiselect switch K6 is connected to, the 5th multiselect switch, which is connected with, receives input test instrument.
Detecting instrument includes vector network analyzer, signal generator 12, spectrum analyzer 13 and Noise Factor Analyzer,
Transmitting output tester includes power analyzer, and receiving input test instrument includes noise source.Vector network analyzer, signal
Generator and spectrum analyzer are the shared testers of transceiver channel.
The test device is also opened including the second single-pole double-throw switch (SPDT) K7, the 3rd single-pole double-throw switch (SPDT) K8 and the 4th single-pole double throw
K9 is closed, the first port of the vector network analyzer is connected with the port 1 that the first multiselect switchs, and the of vector network analyzer
Two-port netwerk 11 is connected with the moved end of the second single-pole double-throw switch (SPDT), two of the second single-pole double-throw switch (SPDT) not moved end connect the 4th respectively
The port 8 of the multiselect switch of port 5 and the 5th of multiselect switch, the moved end phase of signal generator 12 and the 3rd single-pole double-throw switch (SPDT)
Even, moved end does not connect the end that the multiselect of port 3 and the 5th of the first multiselect switch switchs to two of the 3rd single-pole double-throw switch (SPDT) respectively
Mouthfuls 9, spectrum analyzer 13 is connected with the moved end of the 4th single-pole double-throw switch (SPDT), two of the 4th single-pole double-throw switch (SPDT) not moved end difference
Connect the port 6 of the multiselect switch of port 2 and the 4th of the first multiselect switch.
Noise Factor Analyzer is connected with the port 4 that the first multiselect switchs, the end of power analyzer and the 4th multiselect switch
Mouth 7 is connected, and the port 10 that noise source switchs with the 5th multiselect is connected.
First multiselect switch K1, the second multiselect switch K2, the 3rd multiselect switch K3, the first single-pole double-throw switch (SPDT) K4, the 4th
Multiselect switch K5, the 5th multiselect switch K6, the second single-pole double-throw switch (SPDT) K7, the 3rd single-pole double-throw switch (SPDT) K8 and the 4th single-pole double throw
Switch K9 is each equipped with an on off state register.
Embodiment 2
A kind of security verification method of the T/R component test devices of above-described embodiment 1, including：
Step 1：On off state is inquired about, on off state register includes S1、S2、S3、S4、S5、S6、S7、S8And S9, S1It is corresponding
First multiselect switchs K1, S2Corresponding second multiselect switch K2, S3Corresponding 3rd multiselect switch K3, S4Corresponding first single-pole double throw is opened
Close K4, S5Corresponding 4th multiselect switch K5, S6Corresponding 5th multiselect switch K6, S7Corresponding second single-pole double-throw switch (SPDT) K7, S8It is corresponding
3rd single-pole double-throw switch (SPDT) K8, S9Corresponding 4th single-pole double-throw switch (SPDT) K9；Different flag bits pair on off state register
Answer the diverse location S of each switchiDj, as shown in figure 1, the S of the position correspondence on off state register of the first multiselect switch1D4,
The S of the position correspondence on off state register of second multiselect switch2D1, the position correspondence on off state deposit of the 3rd multiselect switch
The S of device3D4, the S of the position correspondence on off state register of the first single-pole double-throw switch (SPDT)4D2, the position correspondence of the 4th multiselect switch
The S of on off state register5D1, the S of the position correspondence on off state register of the 5th multiselect switch6D1；Posted according on off state
Whether all switches of storage inquiry are placed on correct link position, if on off state register shows the connection to inductive switch
Position is correct, then position switching control is not carried out to the switch, if on off state register shows the connection position to inductive switch
Mistake is put, then position switching control is carried out to the switch, the switch is connected on correct position, and is set to inductive switch shape
Flag bit in state register；
Step 2：Pumping signal power is calculated, pumping signal power increases for transmission power and T/R the components transmitting of T/R components
The difference of benefit, the transmission power of T/R components are not more than 20dBm；
Step 3：T/R component test device connectivity checkings, the pumping signal power in T/R components in input step 2,
Test result is obtained in signal testing mechanism, by test result compared with desired value, if comparative result is permitted in error
Perhaps in the range of, then prove that T/R component test devices connect successfully, otherwise it is assumed that the connection failure of T/R component test devices；
Step 4：Terminate equipment safety check test.
A kind of T/R component test devices provided by the invention, improve testing efficiency, high-power without dismantling attenuator etc.
Test accessories, reduce the quantity of the test accessories such as attenuator or coupler, reduce the construction cost of device, facilitate device
It is integrated.Security verification before test device use, it can effectively avoid instrument caused by switch fault from burning, ensure that
Equipment safety is reliably run.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention, it should also belong to the present invention's
Protection domain.
Claims (5)
1. a kind of T/R component test devices, including it is sequentially connected the detecting instrument connect, the first multiselect switch, the second multiselect switch
With T/R components, it is characterised in that also including the 3rd multiselect switch and the first single-pole double-throw switch (SPDT), the T/R components and more than the 3rd
Switch is selected to be connected, the 3rd multiselect switch is connected with the moved end on the first single-pole double-throw switch (SPDT), on the first single-pole double-throw switch (SPDT)
First not moved end by attenuator or coupler be connected with the 4th multiselect switch, the 4th multiselect switch is connected with transmitting output survey
Test instrument, on the first single-pole double-throw switch (SPDT) second not moved end be connected with the 5th multiselect switch, the 5th multiselect switch, which is connected with, to be connect
Receive input test instrument.
2. a kind of T/R component test devices according to claim 1, it is characterised in that the detecting instrument includes vector
Network Analyzer, signal generator, spectrum analyzer and Noise Factor Analyzer, the transmitting output tester include power
Analyzer, the reception input test instrument include noise source.
3. a kind of T/R component test devices according to claim 2, it is characterised in that also opened including the second single-pole double throw
Pass, the 3rd single-pole double-throw switch (SPDT) and the 4th single-pole double-throw switch (SPDT), the first port of the vector network analyzer and the first multiselect
Switch is connected, and the second port of vector network analyzer is connected with the moved end of the second single-pole double-throw switch (SPDT), and the second single-pole double throw is opened
Moved end does not connect the 4th multiselect switch and the 5th multiselect switch, signal generator and the 3rd single-pole double-throw switch (SPDT) to two closed respectively
Moved end be connected, two of the 3rd single-pole double-throw switch (SPDT) not moved end connect the first multiselect switch and the 5th multiselect switch, frequency respectively
Spectrum analyzer is connected with the moved end of the 4th single-pole double-throw switch (SPDT), two of the 4th single-pole double-throw switch (SPDT) not moved end connect first respectively
Multiselect switchs and the 4th multiselect switch.
4. a kind of T/R component test devices according to claim 3, it is characterised in that the first multiselect switch, second
Multiselect switch, the 3rd multiselect switch, the 4th multiselect switch, the 5th multiselect switch, the first single-pole double-throw switch (SPDT), the second single-pole double throw
Switch, the 3rd single-pole double-throw switch (SPDT) and the 4th single-pole double-throw switch (SPDT) are each equipped with an on off state register.
A kind of 5. security verification method of T/R component test devices according to claim 4, it is characterised in that including：
Step 1：Inquire about on off state, on off state register SiIn different flag bits correspond to the diverse location of each switch
SiDj, SiTo the label of inductive switch, DjTo the location label in inductive switch, it is according to all switches of on off state register inquiry
It is no to be placed on correct link position, if on off state register show it is correct to the link position of inductive switch, not to this
Switch carries out position switching control, if on off state register shows the link position mistake to inductive switch, to the switch
Position switching control is carried out, the switch is connected on correct position, and the mark in corresponding on off state register is set
Position；
Step 2：Pumping signal power is calculated, pumping signal power is the transmission power and T/R component transmitting gains of T/R components
Difference, the transmission power of T/R components are not more than 20dBm；
Step 3：T/R component test device connectivity checkings, the pumping signal power in T/R components in input step 2, are believing
Test result is obtained in number mechanism for testing, by test result compared with desired value, if what comparative result allowed in error
In the range of, then prove that T/R component test devices connect successfully, otherwise it is assumed that the connection failure of T/R component test devices；
Step 4：Terminate equipment safety check test.
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| CN106330349B (en) * | 2016-08-18 | 2018-06-26 | 中国电子科技集团公司第四十一研究所 | One kind is based on high-power T/R components receiving and transmitting signal conditioning device and method |
| CN106130667B (en) * | 2016-08-19 | 2018-11-20 | 中国电子科技集团公司第四十一研究所 | Protective device and method, test device for millimeter wave T/R module testing |
| CN106385287B (en) * | 2016-08-19 | 2018-10-19 | 中国电子科技集团公司第四十一研究所 | A kind of multichannel T/R component test devices and method |
| CN107016912A (en) * | 2017-05-22 | 2017-08-04 | 中国电子科技集团公司第四十研究所 | A kind of high amplitude-phase consistency teaching experiment module split circuit |
| CN107490738A (en) * | 2017-08-18 | 2017-12-19 | 湖南时变通讯科技有限公司 | A kind of radio-frequency devices test system |
| CN109490860A (en) * | 2018-12-29 | 2019-03-19 | 中电科仪器仪表有限公司 | System protection circuit and method in a kind of high-power transmitting-receiving subassembly test |
| CN109782101B (en) * | 2019-03-13 | 2021-09-24 | 海检检测有限公司 | Calibration device and calibration method for automobile electronic conduction immunity test |
| CN111934798B (en) * | 2020-08-10 | 2022-07-01 | 河北电信设计咨询有限公司 | User-centered RRU module capable of dynamically allocating channels and channel dynamic allocation method thereof |
| CN113746498B (en) * | 2021-07-28 | 2022-09-27 | 南京新频点电子科技有限公司 | TR subassembly performance integrated test system |
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| CN202282781U (en) * | 2011-11-01 | 2012-06-20 | 南京鑫轩电子系统工程有限公司 | TR assembly automatic test system |
| CN202978964U (en) * | 2012-12-28 | 2013-06-05 | 中国电子科技集团公司第五十四研究所 | Multi-channel T/R module test truss equipment |
| US9628203B2 (en) * | 2014-03-04 | 2017-04-18 | Qualcomm Incorporated | Analog built-in self test transceiver |
| CN103955157B (en) * | 2014-05-19 | 2016-10-05 | 江苏万邦微电子有限公司 | A kind of TR assembly debugging instrument assembled pulse method for generation and control method |
| CN104378101B (en) * | 2014-07-17 | 2017-07-21 | 深圳市国创新能源研究院 | A kind of switching switch for lane testing, method and system |
| CN104808184A (en) * | 2015-04-23 | 2015-07-29 | 中国电子科技集团公司第四十一研究所 | Hierarchical switch network device for testing of multiple T/R (transmitting/receiving) modules and method for implementation of hierarchical switch network for testing of multiple T/R modules |
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