CN107888302A - The device of monitoring receiver radio frequency testing - Google Patents
The device of monitoring receiver radio frequency testing Download PDFInfo
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- CN107888302A CN107888302A CN201610877085.0A CN201610877085A CN107888302A CN 107888302 A CN107888302 A CN 107888302A CN 201610877085 A CN201610877085 A CN 201610877085A CN 107888302 A CN107888302 A CN 107888302A
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- coaxial switch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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Abstract
The invention provides a kind of device of monitoring receiver radio frequency testing, including receiver intermediate frequency port, receiver radio frequency port, receiver audio port, frequency spectrograph port, power meter port, at least two signal source ports, audio analyzer port and at least eight radio frequency links for being respectively used to monitor different receivers radio frequency testing.The device builds multiple radio frequency links between frequency port, receiver radio frequency port, receiver audio port, frequency spectrograph port, power meter port, at least two signal source ports and audio analyzer port in receivers by coaxial switch, and the switching between a plurality of radio frequency link of connection status control for passing through each terminal on coaxial switch, so that the device can be applied to different test environments, without building different links manually when carrying out different test events, the degree of accuracy and the testing efficiency of test are improved.
Description
Technical field
The present invention relates to radio circuit technical field, more particularly to a kind of device of monitoring receiver radio frequency testing.
Background technology
Terminal radio frequency Auto-Test System, which refers to adopt, computerizeds control, and is automatically performed and establishes call, link switching, signal
Measurement, data calculate the automatization test system for handling and outputing test result, and are mainly used in monitoring receiver RF index
Test and integrated test system are built.
In the prior art, radio frequency switch unit is mainly by external a small number of manufacturer productions, and use advanced tester, but
Still suffer from many defects.Especially it is difficult flexibly to be applied to difference such as production cycle length, limited degree are big, expensive
Test environment.During testing rf terminal equipment, for different test environments, it is necessary to carry corresponding
Radio frequency link needs a plurality of radio frequency link to carry to meet test request during a radio frequency testing is completed, if
Carry out carrying test link manually, then can introduce measurement error, influence the accuracy of test result.Also, terminal at this stage
Switch unit function is single, can not complete the test index of all test events of Type Approval.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve on
State the device of the monitoring receiver radio frequency testing of problem.
According to one aspect of the present invention, there is provided a kind of device of monitoring receiver radio frequency testing, including in receiver
Frequency port, receiver radio frequency port, receiver audio port, frequency spectrograph port, power meter port, at least two signal source ends
Mouth, audio analyzer port and at least eight radio frequency links for being respectively used to monitor different receivers radio frequency testing；Wherein：
The receiver intermediate frequency port and the frequency spectrograph direct port connection, form the first radio frequency link；
The receiver audio port and the audio analyzer direct port connection, form the second radio frequency link；
The first signal source port passes sequentially through the first coaxial switch, the second coaxial switch is connected to the receiver and penetrated
Frequency port, form the 3rd radio frequency link；
The secondary signal source port passes sequentially through the 3rd coaxial switch, second coaxial switch is connected to the reception
Machine prevention at radio-frequency port, form the 4th radio frequency link；
The first signal source port passes sequentially through the first coaxial switch, one-to-two power splitter, the connection of the second coaxial switch
To the receiver radio frequency port, the 5th radio frequency link is formed；
The secondary signal source port passes sequentially through the 3rd coaxial switch, the one-to-two power splitter, described second coaxial
Switch is connected to the receiver radio frequency port, forms the 6th radio frequency link；
The first signal source port passes sequentially through first coaxial switch, the 4th coaxial switch is connected to the power
Port is counted, forms the 7th radio frequency link；
Described in the secondary signal source port passes sequentially through the 3rd coaxial switch, the 4th coaxial switch is connected to
Power meter port, form the 8th radio frequency link；
Wherein, first coaxial switch, second coaxial switch and the 3rd coaxial switch respectively include at least three
Individual terminal, the 4th coaxial switch include at least two terminals, first coaxial switch, second coaxial switch, institute
The connection status for stating each terminal on the 3rd coaxial switch and/or the 4th coaxial switch controls each radio frequency link where it to connect
On-off is opened.
Alternatively, described device also includes at least two load ports, the 9th radio frequency link and the tenth radio frequency link；Its
In：
The first signal source port and the first load port are direct-connected, form the 9th radio frequency link, the 9th rf chain
Road is used for radio frequency link where calibrating the first signal source port；
The secondary signal source port and the second load port are direct-connected, form the tenth radio frequency link, the tenth rf chain
Road is used for radio frequency link where calibrating the secondary signal source port.
Alternatively, it is also associated with attenuation part between second coaxial switch and the receiver radio frequency port.
Alternatively, the attenuation part is the first adjustable attenuator.
Alternatively, the attenuation part includes at least two fixed attenuators and at least two coaxial switches；Wherein：
5th coaxial switch and the 6th coaxial switch respectively include at least two terminals, and the first fixed attenuator and second are fixed
The both ends of attenuator are connected on the different terminals of the 5th coaxial switch and the 6th coaxial switch, and the described 5th
The connection status of each terminal controls the fixation used in the attenuation part to decline on coaxial switch and the 6th coaxial switch
It is first fixed attenuator or second fixed attenuator to subtract device.
Alternatively, it is also associated with the second adjustable attenuator between the power meter port and the 4th coaxial switch.
Alternatively, the receiver intermediate frequency port, the receiver radio frequency port, the power meter port, the load
Port uses N connector；The receiver audio port and the audio analyzer port use BNC connector；The frequency spectrograph
Port uses sub-miniature A connector；The signal source port uses N connector or sub-miniature A connector.
Alternatively, the first signal source port uses sub-miniature A connector, and the secondary signal source port uses N connector.
Using the device of the embodiment of the present invention, by coaxial switch in receivers frequency port, receiver radio frequency port, connect
Taken between receipts machine audio port, frequency spectrograph port, power meter port, at least two signal source ports and audio analyzer port
Multiple radio frequency links, and the switching between a plurality of radio frequency link of connection status control for passing through each terminal on coaxial switch are built, from
And allow the device to be applied to different test environments, without building different chains manually when carrying out different test events
Road, improve the degree of accuracy and the testing efficiency of test.
Further, in the embodiment of the present invention, by connecting attenuator in said apparatus, excessive signal institute is avoided
Caused instrument overload even burns out the situation of instrument, so that the device is realizing the premise suitable for different test environments
Under, the security of each instrument and the stability of test in test process can be ensured.
Further, in the embodiment of the present invention, by connecting multiple attenuators in said apparatus so that the device can
According to the attenuator needed for the flexibly selection of different test event and test environment, so as to preferably protect the safety of each instrument
Property, and the stability of test is improved to a greater extent.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
According to the accompanying drawings will be brighter to the detailed description of the specific embodiment of the invention, those skilled in the art
Above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is a kind of schematic block diagram of the device of monitoring receiver radio frequency testing according to an embodiment of the invention；
Fig. 2 is a kind of schematic frame of the device of monitoring receiver radio frequency testing in accordance with another embodiment of the present invention
Figure；
Fig. 3 is a kind of showing for the device kind attenuation part of monitoring receiver radio frequency testing according to an embodiment of the invention
Meaning property block diagram；
Fig. 4 is a kind of circuit diagram of the device of monitoring receiver radio frequency testing according to an embodiment of the invention.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
Fig. 1 is a kind of schematic frame of the device 100 of monitoring receiver radio frequency testing according to an embodiment of the invention
Figure.As shown in figure 1, the device 100 of the monitoring receiver radio frequency testing may include in general manner：Receiver intermediate frequency port 101, connect
Receipts machine prevention at radio-frequency port 102, receiver audio port 103, frequency spectrograph port 104, power meter port 105, at least two signal sources
Port 106 and 107, audio analyzer port 108 and it is respectively used to monitor at least eight of different receivers radio frequency testing and penetrates
Frequency link；Wherein：
Receiver intermediate frequency port 101 and frequency spectrograph port 104 are direct-connected, form the first radio frequency link；
Receiver audio port 103 and audio analyzer port 108 are direct-connected, form the second radio frequency link；
First signal source port 106 passes sequentially through the first coaxial switch 109, the second coaxial switch 110 is connected to receiver
Prevention at radio-frequency port 102, form the 3rd radio frequency link；
Secondary signal source port 107 passes sequentially through the 3rd coaxial switch 111, the second coaxial switch 110 is connected to receiver
Prevention at radio-frequency port 102, form the 4th radio frequency link；
First signal source port 106 passes sequentially through the first coaxial switch 109, one-to-two power splitter 112, the second coaxial switch
110 are connected to receiver radio frequency port 102, form the 5th radio frequency link；
Secondary signal source port 107 passes sequentially through the 3rd coaxial switch 111, one-to-two power splitter 112, the second coaxial switch
110 are connected to receiver radio frequency port 102, form the 6th radio frequency link；
First signal source port 106 passes sequentially through the first coaxial switch 109, the 4th coaxial switch 113 is connected to power meter
Port 105, form the 7th radio frequency link；
Secondary signal source port 107 passes sequentially through the 3rd coaxial switch 111, the 4th coaxial switch 113 is connected to power meter
Port 105, form the 8th radio frequency link；
Wherein, the first coaxial switch 109, the second coaxial switch 110 and the 3rd coaxial switch 111 respectively include at least three ends
Son, the 4th coaxial switch 113 include at least two terminals, and the first coaxial switch 109, the second coaxial switch the 110, the 3rd are coaxially opened
The connection status of each terminal controls the connection of each radio frequency link or disconnection where it on the coaxial switch 113 of pass 111 and/or the 4th.
In the embodiment, the test event of every radio frequency link is as follows：
First radio frequency link can be used for testing following items：Operating frequency range, frequency resolution, frequency accuracy, electricity
It is flat measurement error, three rank point of cut-offs, second order point of cut-off, sensitivity, intermediate frequency interference suppression ratio, image interference rejection ratio, undistorted
Dynamic range, maximum functional dynamic range, receiver spurious emissions, sweep speed.In addition, connection is made an uproar in frequency spectrograph port 104
During the equipment such as sonic system number analyzer, signal analyzer, Network Analyzer, can also by the first radio frequency link test noise coefficient,
The projects such as intermediate frequency phase noise, voltage standing wave ratio.
Second radio frequency link can be used for testing following items：Sensitivity, audio distortion coefficient.
3rd radio frequency link can be used for testing following items：Sensitivity, three rank point of cut-offs, second order point of cut-off, intermediate frequency interference
Rejection ratio, image interference rejection ratio.
4th radio frequency link can be used for testing following items：Three rank point of cut-offs, second order point of cut-off.
5th radio frequency link can be used for testing following items：Three rank point of cut-offs, second order point of cut-off.
6th radio frequency link can be used for testing following items：Three rank point of cut-offs, second order point of cut-off.
7th radio frequency link can be used for testing following items：Sensitivity, three rank point of cut-offs, second order point of cut-off, intermediate frequency interference
Rejection ratio, image interference rejection ratio.
8th radio frequency link can be used for testing following items：Three rank point of cut-offs, second order point of cut-off.
Using the device of the embodiment of the present invention, by coaxial switch in receivers frequency port, receiver radio frequency port, connect
Taken between receipts machine audio port, frequency spectrograph port, power meter port, at least two signal source ports and audio analyzer port
Multiple radio frequency links, and the switching between a plurality of radio frequency link of connection status control for passing through each terminal on coaxial switch are built, from
And allow the device to be applied to different test environments, without building different chains manually when carrying out different test events
Road, improve the degree of accuracy and the testing efficiency of test.In addition, the device according to the difference of test environment due to can flexibly switch
The signal path used in test process, therefore, it can be surveyed on the premise of test result is not influenceed according to monitoring receiver radio frequency
Related request in test-object standard and the test of China's wireless device Type Approval on radio frequency testing, is carried out necessary to test signal
Processing, so as to providing extensive function in the case where not influenceing measuring accuracy, to following Type Approval monitoring receiver
Radio frequency testing is laid a good foundation, significant.
Alternatively, device 100 also include at least two load ports and, the 9th radio frequency link and the tenth radio frequency link；Its
In：
First signal source port 106 and the first load port are direct-connected, form the 9th radio frequency link, and the 9th radio frequency link is used for
Calibrate the place radio frequency link of the first signal source port 106；
Secondary signal source port 107 and the second load port are direct-connected, form the tenth radio frequency link, and the tenth radio frequency link is used for
Calibrate the place radio frequency link of secondary signal source port 107.
Wherein, load port can connect impedance matching resistor.
In the alternative, it is applicable to the place radio frequency link of the first signal source port 106 or secondary signal source
107 place radio frequency links of mouth use when being calibrated, when needing to calibrate 106 place radio frequency link of the first signal source port, even
Connect the first signal source port 106 and the first load port；When needing to calibrate the place radio frequency link of secondary signal source port 107
When, connect secondary signal source port 107 and the second load port.In a calibration process, other radio frequency links can not connect
It is logical；During actual test, the 9th radio frequency link and the tenth radio frequency link can not connect.
Alternatively, as shown in Fig. 2 being also associated with attenuation part between the second coaxial switch 110 and receiver radio frequency port 102
114。
In the alternative, by connecting attenuation part between the second coaxial switch 110 and receiver radio frequency port 102
114, the instrument caused by excessive signal can be avoided to overload or even burn out the situation of instrument, so that the device is suitable in realization
On the premise of for different test environments, the security of each instrument and the stability of test in test process can be ensured.
Alternatively, attenuation part 114 is the first adjustable attenuator.
In the alternative, the first adjustable damping is connected between the second coaxial switch 110 and receiver radio frequency port 102
Device so that radio frequency link (the 3rd radio frequency link, the 4th radio frequency where the second coaxial switch 110 and receiver radio frequency port 102
Link, the 5th radio frequency link or the 6th radio frequency link) on signal attenuation value can be selected according to actual test environment, so as to
The security of each instrument can be preferably protected, and improves the stability of test to a greater extent.
Alternatively, attenuation part 114 includes at least two fixed attenuators and at least two coaxial switches；Wherein：
5th coaxial switch 1141 and the 6th coaxial switch 1142 respectively include at least two terminals, the first fixed attenuator
1143 and second the both ends of fixed attenuator 1144 be connected to the 5th coaxial switch 1141 and the 6th coaxial switch 1142
On different terminals, the connection status control attenuation part of each terminal on the 5th coaxial switch 1141 and the 6th coaxial switch 1142
Fixed attenuator used in 114 is the first fixed attenuator 1143 or the second fixed attenuator 1144.
In the alternative, to make signal attenuation value have washability, the first fixed attenuator 1143 and the second fixation decline
Different pad values should be had by subtracting device 1144.Also, the number of included fixed attenuator can also be big in attenuation part 114
In 2, now the numbers of terminals on the 5th coaxial switch 1141 and the 6th coaxial switch 1142 also should be with the number of fixed attenuator
Match, i.e., the numbers of terminals on the 5th coaxial switch 1141 and the 6th coaxial switch 1142 should be at least equal to fixed attenuator
Number.
For example, the pad value of the first fixed attenuator 1143 is 10dBm, the pad value of the second fixed attenuator 1144 is
20dBm。
Fig. 3 show the schematic block diagram of attenuation part 114 in the alternative.In figure 3, the 5th coaxial switch 1141
Including two terminals：The first terminal 31 and Second terminal 32；6th coaxial switch 1142 also includes two terminals：Third terminal 33
With forth terminal 34；The both ends of first fixed attenuator 1143 connect the first terminal 31 and third terminal 33 respectively, and second fixes
The both ends of attenuator 1144 connect Second terminal 32 and forth terminal 34 respectively.5th coaxial switch 1141 and the 6th coaxial switch
It is the first fixed attenuator 1143 that the connection status of each terminal, which controls the fixed attenuator used in attenuation part 114, on 1142
Or second fixed attenuator 1144, specific control mode are as follows：When the 5th coaxial switch 1141 connects the first terminal 31, while the
When six coaxial switches 1142 connect third terminal 33, fixed attenuator used in attenuation part 114 is the first fixed attenuator
1143；When the 5th coaxial switch 1141 connects Second terminal 32, while the 6th coaxial switch 1142 connects forth terminal 34, decline
It is the second fixed attenuator 1144 to subtract fixed attenuator used in part 114.
In the alternative, multiple fixed attenuations are connected between the second coaxial switch 110 and receiver radio frequency port 102
Device so that radio frequency link (the 3rd radio frequency link, the 4th radio frequency where the second coaxial switch 110 and receiver radio frequency port 102
Link, the 5th radio frequency link or the 6th radio frequency link) on signal attenuation value can be selected according to actual test environment, so as to
The security of each instrument can be preferably protected, and improves the stability of test to a greater extent.
Alternatively, it is also associated with the second adjustable attenuator between the coaxial switch 113 of power meter port 105 and the 4th.
In the alternative, by connecting the second adjustable damping between the coaxial switch 113 of power meter port 105 and the 4th
Device so that power meter port 105 and the place video link of the 4th coaxial switch 113 (the 7th radio frequency link or the 8th radio frequency link)
On signal attenuator can be selected according to actual test environment, so as to preferably protect the security of each instrument, and
The stability of test is improved to a greater extent.
In addition, multiple fixed attenuators, Duo Gegu also can be connected between the coaxial switch 113 of power meter port 105 and the 4th
The both ends for determining attenuator are connected on the different terminals of two coaxial switches, so that in different test environments, can be led to
Cross the selection of the connection status control fixed attenuator of each terminal on coaxial switch.
Alternatively, receiver intermediate frequency port 101, receiver radio frequency port 102, power meter port 105, load port (
One load port and/or the second load port) use N connector；Receiver audio port 103 and audio analyzer port 108
Using BNC connector；Frequency spectrograph port 104 uses sub-miniature A connector；Signal source port (the first signal source port 106 and/or the second letter
Number source port 107) use N connector or sub-miniature A connector.
Alternatively, the first signal source port 106 uses sub-miniature A connector, and secondary signal source port 107 uses N connector.
Fig. 4 is a kind of circuit diagram of the device of monitoring receiver radio frequency testing according to an embodiment of the invention.At this
In embodiment, receiver intermediate frequency port 101 is connected with intermediate-frequency receiver；Receiver radio frequency port 102 is connected with radio-frequency transmitter；
Receiver audio port 103 is connected with voice receiver；Frequency spectrograph port 104 is connected with frequency spectrograph；Power meter port 105 connects
There is power meter；First signal source port 106 is connected with signal source 1；Secondary signal source port 107 is connected with signal source 2；Audio point
Analyzer port 108 is connected with audio analyzer；First loading interfaces 115 are connected with load 1；Second loading interfaces 116 are connected with
Load 2.K3-1 is the first coaxial switch, and K3-2 is the second coaxial switch, and K3-3 is the 3rd coaxial switch, and K2-4 is the 4th coaxial
Switch, K3-5 is the 5th coaxial switch, and K3-6 is the 6th coaxial switch；In the coaxial switch K2-4 of power meter port 105 and the 4th
Between be connected with adjustable attenuator, the pad value adjustable extent of the adjustable attenuator is 0~11dB；In the second coaxial switch K3-2
Attenuation part is connected between receiver radio frequency port 102, the attenuation part includes the 5th coaxial switch K3-5, the 6th coaxial
K3-6 and two fixed attenuator is switched, wherein, the pad value of two fixed attenuators is respectively 10dB and 20dB, and two are solid
The position for determining attenuator is interchangeable, you can connects the arbitrary end on the 5th coaxial switch K3-5 and the 6th coaxial switch K3-6 respectively
Son.U1 is one-to-two power splitter.
How detailed description below controls the connection of each radio frequency link by the connection status of each terminal on each coaxial switch
Or disconnect.
When the first radio frequency link or the second radio frequency link need to be used, the first coaxial switch K3-1, second can coaxially be opened
Close on K3-2, the 3rd coaxial switch K3-3, the 4th coaxial switch K2-4, the 5th coaxial switch K3-5 and the 6th coaxial switch K3-6
Each terminal all disconnect.
When three radio frequency links need to be used, first terminal on the first coaxial switch K3-1 from top to bottom can be connected
Logical, first terminal on the second coaxial switch K3-2 from top to bottom connects, the 3rd coaxial switch K3-3 and the 4th coaxial switch
Each terminal on K2-4 all disconnects, the 5th coaxial switch K3-5 and the mutually corresponding terminal of the 6th coaxial switch K3-6 connections, example
Such as, the 5th coaxial switch K3-5 and the 6th coaxial switch K3-6 connects first terminal from top to bottom, now using decay
It is worth the fixed attenuator for 20dB；Or the 5th coaxial switch K3-5 and the 6th coaxial switch K3-6 all connect from top to bottom
Second terminal, now use fixed attenuator of the pad value for 10dB；Or, the 5th coaxial switch K3-5 and the 6th is coaxial again
Switch K3-6 connects the 3rd terminal from top to bottom, and now signal is decayed without using attenuator.
When four radio frequency links need to be used, the 3rd terminal on the 3rd coaxial switch K3-3 from top to bottom can be connected
Logical, the 3rd terminal on the second coaxial switch K3-2 from top to bottom connects, the first coaxial switch K3-1 and the 4th coaxial switch
Each terminal on K2-4 all disconnects, the 5th coaxial switch K3-5 and the mutually corresponding terminal of the 6th coaxial switch K3-6 connections.
When five radio frequency links need to be used, second terminal on the first coaxial switch K3-1 from top to bottom can be connected
Logical, second terminal on the second coaxial switch K3-2 from top to bottom connects, the 3rd coaxial switch K3-3 and the 4th coaxial switch
Each terminal on K2-4 all disconnects, the 5th coaxial switch K3-5 and the mutually corresponding terminal of the 6th coaxial switch K3-6 connections.
When six radio frequency links need to be used, second terminal on the 3rd coaxial switch K3-3 from top to bottom can be connected
Logical, second terminal on the second coaxial switch K3-2 from top to bottom connects, the first coaxial switch K3-1 and the 4th coaxial switch
Each terminal on K2-4 all disconnects, the 5th coaxial switch K3-5 and the mutually corresponding terminal of the 6th coaxial switch K3-6 connections.
When seven radio frequency links need to be used, the 3rd terminal on the first coaxial switch K3-1 from top to bottom can be connected
It is logical, second terminal connection on the 4th coaxial switch K2-4 from top to bottom, the second coaxial switch K3-2, the 3rd coaxial switch
Each terminal on K3-3, the 5th coaxial switch K3-5 and the 6th coaxial switch K3-6 all disconnects.
When eight radio frequency links need to be used, first terminal on the 3rd coaxial switch K3-3 from top to bottom can be connected
It is logical, first terminal connection on the 4th coaxial switch K2-4 from top to bottom, the first coaxial switch K3-1, the second coaxial switch
Each terminal on K3-2, the 5th coaxial switch K3-5 and the 6th coaxial switch K3-6 all disconnects.
As can be seen here, using the device in the present embodiment, multiple coaxial switches frequency port, receiver in receivers are passed through
Prevention at radio-frequency port, receiver audio port, frequency spectrograph port, power meter port, two signal source ports and audio analyzer end
Multiple radio frequency links are built between mouthful, and between a plurality of radio frequency link of connection status control by each terminal on coaxial switch
Switching, so that the device can be applied to different test environments, without being built manually not when carrying out different test events
Same link, improve the degree of accuracy and the testing efficiency of test.Meanwhile adjustable attenuator and fixed attenuator energy in the device
The instrument caused by excessive signal is enough avoided to overload or even burn out the situation of instrument, so that the device is being realized suitable for not
On the premise of with test environment, the security of each instrument and the stability of test in test process can be ensured.
In the specification that this place provides, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice in the case of these no details.In some instances, known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help to understand one or more of each inventive aspect,
Above in the description to the exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：I.e. required guarantor
The application claims of shield features more more than the feature being expressly recited in each claim.It is more precisely, such as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following embodiment are expressly incorporated in the embodiment, wherein each claim is in itself
Separate embodiments all as the present invention.
Those skilled in the art, which are appreciated that, to be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more equipment different from the embodiment.Can be the module or list in embodiment
Member or component be combined into a module or unit or component, and can be divided into addition multiple submodule or subelement or
Sub-component.In addition at least some in such feature and/or process or unit exclude each other, it can use any
Combination is disclosed to all features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and so to appoint
Where all processes or unit of method or equipment are combined.Unless expressly stated otherwise, this specification (including adjoint power
Profit requires, summary and accompanying drawing) disclosed in each feature can be by providing the alternative features of identical, equivalent or similar purpose come generation
Replace.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included some features rather than further feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in detail in the claims, embodiment claimed it is one of any
Mode it can use in any combination.
The all parts embodiment of the present invention can be realized with hardware, or to be run on one or more processor
Software module realize, or realized with combinations thereof.It will be understood by those of skill in the art that it can use in practice
Microprocessor or digital signal processor (DSP) realize the dress of monitoring receiver radio frequency testing according to embodiments of the present invention
The some or all functions of some or all parts in putting.
It should be noted that the present invention will be described rather than limits the invention for above-described embodiment, and ability
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" before element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of some different elements and being come by means of properly programmed computer real
It is existing.In if the unit claim of equipment for drying is listed, several in these devices can be by same hardware branch
To embody.The use of word first, second, and third does not indicate that any order.These words can be explained and run after fame
Claim.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, still can be direct according to present disclosure without departing from the spirit and scope of the present invention
It is determined that or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognized
It is set to and covers other all these variations or modifications.
Claims (8)
1. a kind of device of monitoring receiver radio frequency testing, including receiver intermediate frequency port, receiver radio frequency port, receiver sound
Frequency port, frequency spectrograph port, power meter port, at least two signal source ports, audio analyzer port and it is respectively used to supervise
Survey at least eight radio frequency links of different receivers radio frequency testing；Wherein：
The receiver intermediate frequency port and the frequency spectrograph direct port connection, form the first radio frequency link；
The receiver audio port and the audio analyzer direct port connection, form the second radio frequency link；
The first signal source port passes sequentially through the first coaxial switch, the second coaxial switch is connected to the receiver radio frequency end
Mouthful, form the 3rd radio frequency link；
The secondary signal source port passes sequentially through the 3rd coaxial switch, second coaxial switch is connected to the receiver and penetrated
Frequency port, form the 4th radio frequency link；
The first signal source port passes sequentially through the first coaxial switch, one-to-two power splitter, the second coaxial switch and is connected to institute
Receiver radio frequency port is stated, forms the 5th radio frequency link；
The secondary signal source port passes sequentially through the 3rd coaxial switch, the one-to-two power splitter, second coaxial switch
The receiver radio frequency port is connected to, forms the 6th radio frequency link；
The first signal source port passes sequentially through first coaxial switch, the 4th coaxial switch is connected to the power meter end
Mouthful, form the 7th radio frequency link；
The secondary signal source port passes sequentially through the 3rd coaxial switch, the 4th coaxial switch is connected to the power
Port is counted, forms the 8th radio frequency link；
Wherein, first coaxial switch, second coaxial switch and the 3rd coaxial switch respectively include at least three ends
Son, the 4th coaxial switch include at least two terminals, first coaxial switch, second coaxial switch, described
On three coaxial switches and/or the 4th coaxial switch connection status of each terminal control each radio frequency link connection where it or
Disconnect.
2. device according to claim 1, wherein, described device also includes at least two load ports, the 9th rf chain
Road and the tenth radio frequency link；Wherein：
The first signal source port and the first load port are direct-connected, form the 9th radio frequency link, and the 9th radio frequency link is used
The radio frequency link where the first signal source port is calibrated；
The secondary signal source port and the second load port are direct-connected, form the tenth radio frequency link, and the tenth radio frequency link is used
The radio frequency link where the secondary signal source port is calibrated.
3. device according to claim 1 or 2, wherein, between second coaxial switch and the receiver radio frequency port
It is also associated with attenuation part.
4. device according to claim 3, wherein, the attenuation part is the first adjustable attenuator.
5. device according to claim 3, wherein, the attenuation part includes at least two fixed attenuators and at least two
Individual coaxial switch；Wherein：
5th coaxial switch and the 6th coaxial switch respectively include at least two terminals, the first fixed attenuator and the second fixed attenuation
The both ends of device are connected on the different terminals of the 5th coaxial switch and the 6th coaxial switch, and the described 5th is coaxial
The connection status of each terminal controls the fixed attenuator used in the attenuation part on switch and the 6th coaxial switch
For first fixed attenuator or second fixed attenuator.
6. device according to claim 1, wherein, it is also associated between the power meter port and the 4th coaxial switch
Second adjustable attenuator.
7. device according to claim 2, wherein, it is the receiver intermediate frequency port, the receiver radio frequency port, described
Power meter port, the load port use N connector；The receiver audio port and the audio analyzer port use
BNC connector；The frequency spectrograph port uses sub-miniature A connector；The signal source port uses N connector or sub-miniature A connector.
8. device according to claim 7, wherein, the first signal source port uses sub-miniature A connector, the secondary signal
Source port uses N connector.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109586810A (en) * | 2018-12-28 | 2019-04-05 | 辰测（北京）科技发展有限公司 | A kind of distributed dynamic radio frequency test interface device and test method |
| CN109884409A (en) * | 2019-02-28 | 2019-06-14 | 广州杰赛科技股份有限公司 | Array antenna automatic testing equipment |
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| CN103052109A (en) * | 2012-12-06 | 2013-04-17 | 国家无线电监测中心检测中心 | Method and device for radio frequency consistency test of wireless communication terminal of public network |
| CN104519503A (en) * | 2014-12-12 | 2015-04-15 | 国家无线电监测中心检测中心 | Radio frequency link switching device for mobile communication terminal testing |
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| CN101605005A (en) * | 2009-07-31 | 2009-12-16 | 中国电子科技集团公司第四十一研究所 | Frequency-hopping radio station indicator testing device in half-duplex pilot frequency communication |
| CN103052109A (en) * | 2012-12-06 | 2013-04-17 | 国家无线电监测中心检测中心 | Method and device for radio frequency consistency test of wireless communication terminal of public network |
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