CN103094644A - Switch matrix for radio frequency product testing - Google Patents
Switch matrix for radio frequency product testing Download PDFInfo
- Publication number
- CN103094644A CN103094644A CN2013100071375A CN201310007137A CN103094644A CN 103094644 A CN103094644 A CN 103094644A CN 2013100071375 A CN2013100071375 A CN 2013100071375A CN 201310007137 A CN201310007137 A CN 201310007137A CN 103094644 A CN103094644 A CN 103094644A
- Authority
- CN
- China
- Prior art keywords
- switch
- attenuator
- throw
- spdt
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention relates to a switch matrix for radio frequency product testing. The switch matrix for radio frequency product testing comprises at least one first level attenuation device which is connected with an RD machine electricity coaxial switch set. The RD machine electricity coaxial switch set is connected with at least one secondary level attenuator device and used for communicating the first level attenuation device and/or the second level attenuation device. The switch matrix for radio frequency product testing protects a testing instrument form being burnt, and meanwhile reduces cost of the attenuation devices. The first attenuation device or the second attenuation device is chosen for use through the RD machine electricity coaxial switch set, the testing precision of a tested part which does not need two levels of attenuation is high, and testing accuracy of a frequency product is ensured.
Description
Technical field
The present invention relates to a kind of electrical switchgear, relate in particular to a kind of radio-frequency (RF) switch matrix for the radio frequency products test.
Background technology
In telecommunications context research and development and production process, usually need to test the radio-frequency performance of carrying out of radio frequency products.In the product test process; usually use identical tester that the product of different output power is tested; if tester is not protected, be easy to occur the situation that causes tester to be burnt because power output is too high, improve the production cost.Therefore, when radio frequency products is tested, usually between test product and tester, attenuator is set at present, reduces the power output of test product and do not burnt with the protection tester.If the power output of test product is larger, and the power of attenuator is less, can not realize protecting the purpose of tester after overdamping.Therefore in order to reach the purpose of tester protection, the power of the attenuator of use is larger, so cost is higher.In addition, if the power output of test product is lower, can makes output signal unstable after decaying through attenuator, and then cause test inaccurate, namely not need to decay through the attenuator of relatively high power for the lower test product of power output.Therefore use the attenuator of a relatively high power that all test products are decayed and can cause test inaccurate, cost is higher.
Summary of the invention
The purpose that the present invention solves be to overcome the testing cost that exists in prior art high, test inaccurate deficiency; a kind of radio-frequency (RF) switch matrix for the radio frequency products test is provided; by radio-frequency (RF) switch matrix protection tester of the present invention; not only avoided the situation that tester is burnt to occur; but also reduced testing cost, ensured the accuracy of test.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of radio-frequency (RF) switch matrix for the radio frequency products test, comprise at least one one-level attenuator, described one-level attenuator connects the dynamo-electric coaxial switch group of RD, the dynamo-electric coaxial switch group of described RD connects at least one secondary attenuator, and the dynamo-electric coaxial switch group of described RD is used for being communicated with one-level attenuator and/or secondary attenuator; When setting threshold value, the dynamo-electric coaxial switch group of described RD is communicated with one-level attenuator or secondary attenuator when the power output of tested radio frequency products; When setting threshold value, the dynamo-electric coaxial switch group of described RD is communicated with one-level attenuator and secondary attenuator simultaneously when the power output of tested radio frequency products.the present invention is used for the radio-frequency (RF) switch matrix of radio frequency products test, be provided with the one-level attenuator, the dynamo-electric coaxial switch group of secondary attenuator and RD, be communicated with one-level attenuator and/or secondary attenuator by the dynamo-electric coaxial switch group selection of RD, one end of one-level attenuator is connected with the output of tested radio frequency products, can decay by the power output of one-level attenuator with tested radio frequency products, reduce the power output of tested radio frequency products, whether need to enable the secondary attenuator by the dynamo-electric coaxial switch group selection of RD again, if the power that the power output after decaying through one-level still can be carried greater than tester, select to enable the secondary attenuator, otherwise do not enable the secondary attenuator, the dynamo-electric coaxial switch group of RD directly is communicated with tester.Realize the decay of measured piece power output by one-level attenuator and secondary attenuator; avoided using a powerful attenuator; the protection tester has reduced the cost of attenuator when not burnt; enable one-level attenuator or secondary attenuator by the dynamo-electric coaxial switch group selection of RD; make the measuring accuracy that does not need through the measured piece of two-stage decay higher, ensured the accuracy of radio frequency products test.The purpose that one-level attenuator and secondary attenuator are set is that the protection tester is unlikely to be burnt because the power output of tested radio frequency products is too high.The power that various testers can carry is different, and therefore described setting threshold value can be adjusted according to the maximum power that tester can bear.
According to the embodiment of the present invention, the dynamo-electric coaxial switch group of described RD comprises at least one change over switch, described one-level attenuator is connected with change over switch, and a described change over switch is connected with a secondary attenuator, and described change over switch is used for selecting to be communicated with the secondary attenuator.When needs use the secondary attenuator, be communicated with the secondary attenuator by change over switch, and then be communicated with tester; If do not need to use the secondary attenuator, change over switch directly is communicated with tester.
According to the embodiment of the present invention, the dynamo-electric coaxial switch group of described RD comprises at least one single-pole double-throw switch (SPDT) and at least one single pole multiple throw, an interface of described single-pole double-throw switch (SPDT) directly is connected with described single pole multiple throw, an interface of single-pole double-throw switch (SPDT) is connected with single pole multiple throw by the one-level attenuator, and single pole multiple throw is connected with the secondary attenuator.If when needing to use the one-level attenuator, single-pole double-throw switch (SPDT) is communicated with the one-level attenuator, and the one-level attenuator is connected with single pole multiple throw; If do not need to use the one-level attenuator, single-pole double-throw switch (SPDT) directly is communicated with single pole multiple throw.
Further preferred, the dynamo-electric coaxial switch group of described RD comprises at least two single-pole double-throw switch (SPDT)s and at least one single pole multiple throw, one end of at least one single-pole double-throw switch (SPDT) in described single-pole double-throw switch (SPDT) is connected with the one-level attenuator, the other end is connected with described single pole multiple throw, at least one remaining single-pole double-throw switch (SPDT) is connected with single pole multiple throw, single-pole double-throw switch (SPDT) is used for being communicated with single pole multiple throw or load, and single pole multiple throw is connected with the secondary attenuator.If when need using the one-level attenuator, be communicated with single pole multiple throw, remaining single-pole double-throw switch (SPDT) connection load with in single-pole double-throw switch (SPDT) that the one-level attenuator is connected one; If do not need to use the one-level attenuator, not with single-pole double-throw switch (SPDT) that the one-level attenuator is connected in one be communicated with single pole multiple throw, remaining single-pole double-throw switch (SPDT) is communicated with load.Realize the selection of one-level attenuator by at least two single-pole double-throw switch (SPDT)s, one end of single-pole double-throw switch (SPDT) is connected with load, when a single-pole double-throw switch (SPDT) is communicated with single pole multiple throw, remaining single-pole double-throw switch (SPDT) all is connected with load, prevented that signal from leaking out by remaining output port (output port of measured piece is connected with single-pole double-throw switch (SPDT)) of measured piece, caused test inaccurate.
Further preferred, described change over switch and secondary attenuator are at least two, also are provided with single-pole double-throw switch (SPDT) between described single pole multiple throw and change over switch.During test, change over switch is connected with tester, at least two change over switches are set, each change over switch can connect different testers, select required tester by the single-pole double-throw switch (SPDT) between single pole multiple throw and change over switch, avoid different test events to build different testboards, avoided the waste of test resource, also improved testing efficiency.
Further preferred, described single pole multiple throw is hilted broadsword six throw switches.At least two single-pole double-throw switch (SPDT)s take at least two interfaces of hilted broadsword six throw switches, and interface remaining in hilted broadsword six throw switches is connected with the output of tested radio frequency products as expansion interface, is applicable to the more radio frequency products of output port.Expansion interface also can be connected with tester, increases tester, satisfies different test events.
The present invention also provides a kind of radio frequency products test macro, this test macro comprises the radio-frequency (RF) switch matrix, described radio-frequency (RF) switch matrix connecting test instrument and measured piece, described measured piece connecting signal source, described signal source, tester and radio-frequency (RF) switch matrix are connected PC, the radio-frequency (RF) switch matrix comprises at least one one-level attenuator, described one-level attenuator connects the dynamo-electric coaxial switch group of RD, the dynamo-electric coaxial switch group of described RD connects at least one secondary attenuator, and the dynamo-electric coaxial switch group of described RD is used for being communicated with one-level attenuator and/or secondary attenuator.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention is used for the radio-frequency (RF) switch matrix of radio frequency products test, be provided with the one-level attenuator, the dynamo-electric coaxial switch group of secondary attenuator and RD, be communicated with one-level attenuator and/or secondary attenuator by the dynamo-electric coaxial switch group selection of RD, realize the decay of measured piece power output, avoided using a powerful attenuator, the protection tester has reduced the cost of attenuator when not burnt, enable one-level attenuator or secondary attenuator by the dynamo-electric coaxial switch group selection of RD, make the measuring accuracy that does not need through the measured piece of two-stage decay higher, ensured the accuracy of radio frequency products test.
2, the present invention has at least two change over switches for the radio-frequency (RF) switch arranged in matrix of radio frequency products test, can connect at least two testers, can realize a plurality of test events tests.Be provided with at least two single-pole double-throw switch (SPDT)s in the radio-frequency (RF) switch matrix, can connect at least two output channels of measured piece at least, can realize that the different test link of radio frequency products switches mutually, reduce the change the outfit number of times of product in test process, having avoided the people is that the instrument that the misoperation in the process that changes the outfit causes burns, saved the testing time simultaneously, improved testing efficiency.
3, the use of single pole multiple throw makes the radio-frequency (RF) switch matrix have expansion interface, test port by Extended Capabilities Port changeable tester or measured piece, avoid different test events to build the test resource waste that different testboards cause, improved simultaneously testing efficiency.
Description of drawings
Fig. 1 is radio-frequency (RF) switch structrue of matrix schematic diagram of the present invention;
Fig. 2 is the connection diagram that radio-frequency (RF) switch matrix of the present invention is used for the radio frequency products test;
Fig. 3 is the workflow diagram of radio-frequency (RF) switch matrix of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Embodiments of the present invention are not limited to following examples, within the various variations of making under the prerequisite that does not break away from aim of the present invention all belong to protection scope of the present invention.
The object of the present invention is to provide a kind of radio-frequency (RF) switch matrix for the radio frequency products test, namely realize the multichannel output of radio frequency products and any link switching between tester, this switching makes arbitrary port of measured piece (measured piece namely refers to tested radio frequency products) and any tester can realize path.
Purpose of the present invention is achieved through the following technical solutions:
The radio-frequency (RF) switch matrix that the present invention is used for the radio frequency products test comprises the dynamo-electric coaxial switch of RD, one-level attenuator and secondary attenuator.The one-level attenuator is connected with the dynamo-electric coaxial switch of RD, and the dynamo-electric coaxial switch of RD is connected with the secondary attenuator.
With reference to figure 1, Fig. 2, the radio-frequency (RF) switch matrix that the present embodiment is enumerated comprises one-level attenuator, the dynamo-electric coaxial switch of RD and secondary attenuator.The dynamo-electric coaxial switch of described RD comprises a plurality of single-pole double-throw switch (SPDT)s (SPDT), at least one hilted broadsword six throw switch (SP6T) and at least one change over switch (Transfer).K1～K16 shown in Fig. 2 is the dynamo-electric coaxial switch of RD, wherein K1, K2, K3, K4, K6, K7, K9, K10, K11, K12, K14 and K15 are single-pole double-throw switch (SPDT), single-pole double-throw switch (SPDT) has three interfaces, wherein K1, K2, K3, K4, K9, K10, K11, K12 are labeled as the interface connection one-level attenuator of PORT, the interface that is labeled as LOAD connects load, be used for preventing leakage signal, the another one interface connects one of them interface of hilted broadsword six throw switches.Because be communicated with between each output of measured piece, the signal of an output port can flow to other output ports, causes leakage signal.Therefore when an output port of measured piece was communicated with hilted broadsword six throw switches, remaining output port was connected with load, avoids leakage signal.For example the output 1 of measured piece is communicated with K5, the output 2 of measured piece, output 3, output 4, output 5, output 6, output 7, output 8 all the interface of the LOAD by single-pole double-throw switch (SPDT) connect load.K5, K13 are hilted broadsword six throw switches, and the interface that hilted broadsword six throw switches are labeled as COM connects a single-pole double-throw switch (SPDT) (K6, K14).Wherein K8, K16 are change over switch, one of them interface (J1) of change over switch connects single-pole double-throw switch (SPDT) (K7, K8), wherein two interfaces (J3, J4) are connected to the two ends of secondary attenuator, another interface (J2) connecting test instrument (instrument 1, instrument 2).When being communicated with secondary attenuator and tester, J1 and J3 interface are communicated with, and J4 and J2 interface are communicated with.Only be communicated with tester, when not being communicated with the secondary decay, J1 and J2 interface are communicated with, and J4 and J3 interface are communicated with.
As preferred embodiment a kind of, also be provided with Extended Capabilities Port in the radio-frequency (RF) switch matrix, expansion interface J5 and the J6 of hilted broadsword six throw switches as shown in Figure 2, EXA1, EXA2 represent respectively J5, the J6 of K5, EXB1, EXB2 represent respectively J5, the J6 of K13.The expansion interface J5 of hilted broadsword six throw switches (K5, K13) is connected with the output port of measured piece with J6.Extended Capabilities Port is set can be used for the more measured piece of test output terminal mouth, increase the adaptability of radio-frequency (RF) switch matrix.On the other hand, Extended Capabilities Port is set can increase the quantity of disposable test measured piece, the testing efficiency that (change the outfit and namely refer to change measured piece) cause of having avoided frequently changing the outfit is low, and the situation that the tester that the connection error of also having avoided may occurring because frequently changing the outfit causes or measured piece are burnt occurs.Hilted broadsword six throw switches are a kind of execution modes of realizing Extended Capabilities Port, can realize arranging a plurality of Extended Capabilities Port by the interface number that changes single pole multiple throw.
The expansion interface J5 of hilted broadsword six throw switches is also with J6 can connect measured piece and/or secondary attenuator, and namely EXA1, EXA2, EXB1, EXB2 connect secondary attenuator (connecting by tie point A1), tester (connecting by tie point A2), secondary attenuator (connecting by tie point B1), tester (connecting by tie point B2) in change over switch respectively.Expansion interface connects like this, can be used for increasing and decreasing arbitrarily tester, has avoided different test events to build different testboards to the waste of test resource and testing efficiency.
As preferred embodiment a kind of, one-level attenuator in the radio-frequency (RF) switch matrix that the present embodiment is enumerated and secondary attenuator rated power and pad value not identically configurable, the rated power of different one-level attenuators/secondary attenuator and pad value are configurable not identical yet.
With reference to figure 2, the present invention is used for the radio-frequency (RF) switch matrix of radio frequency products test in the connection diagram of radio frequency products test macro.The radio frequency products test macro comprises PC, signal source, measured piece, is used for radio-frequency (RF) switch matrix and the tester of radio frequency products test.PC PC is by general-purpose interface bus (GPIB) connecting signal source and tester, signal source connects measured piece, PC sends signal by signal source to measured piece according to the power of measured piece, measured piece is connected with the radio-frequency (RF) switch matrix that is used for the radio frequency products test, signal is transferred to the radio-frequency (RF) switch matrix of testing for radio frequency products by measured piece, the radio-frequency (RF) switch matrix that is used for the radio frequency products test is connected with tester.The radio-frequency (RF) switch matrix that wherein is used for the radio frequency products test comprises the dynamo-electric coaxial switch of one-level attenuator, secondary attenuator and RD.The dynamo-electric coaxial switch of RD comprises the SPDT(single-pole double-throw switch (SPDT)), SP6T(hilted broadsword six throw switches), the Transfer(change over switch) three kinds of switches, and three kinds of switches connect successively.
The radio-frequency (RF) switch matrix that is used for the radio frequency products test comprises one-level attenuator and secondary attenuator, can select one-level attenuator and/or secondary attenuator according to the power output of measured piece.If the power output of measured piece less (as less than 500W), choice for use one-level attenuator or secondary attenuator are decayed to the power output of measured piece.If the power output of measured piece large (as greater than 500W) uses one-level attenuator and secondary attenuator that the power output of measured piece is decayed simultaneously.PC is according to the signal power of measured piece output, (for example high level is communicated with hilted broadsword six throw switches by high-low level (high-low level of RS232 serial ports), single-pole double-throw switch (SPDT) to be carried out switching controls, the low-level communications load), realize the decay of measured piece output end signal.One-level attenuator and secondary attenuator have fixing rated power and pad value, can be configured according to the real output of product.
With reference to figure 3, the power flow of the radio-frequency (RF) switch matrix that is used for the radio frequency products test that the present embodiment is enumerated is: signal source makes measured piece reach rated output power to measured piece (being tested radio frequency products) input power.PC is selected to carry out power attenuation by one-level attenuator and/or secondary attenuator according to measured piece rated output power scope, is not burnt with the protection tester.In the situation that power output large (greater than 500W), control high-low level by PC and carry out single-pole double-throw switch (SPDT) and switch, output work is taken the lead in carrying out the one-level decay by the one-level attenuator, reduce the power output of measured piece.After for example being decayed via the one-level attenuator by the output 1 of measured piece, arrive the PORT1 interface of specifying single-pole double-throw switch (SPDT) K1, namely the signal after the decay is transferred to the PORT1 interface of K1, then the PC PORT1 interface of controlling K1 is communicated with the J1 interface of K5, and the J1 interface by hilted broadsword six throw switch K5 transfers to K5.Simultaneously, single-pole double-throw switch (SPDT) K2, K3, K4 PORT interface separately is communicated with the LOAD interface.Hilted broadsword six throw switches once only are communicated with an interface in J1 to J6 interface, and its signal transmission path is unique, have so just avoided multiple signals to enter simultaneously different links, cause link out of control, and unpredictable danger even occurs.Signal after decay passes through SP6T(K6) be transferred to next single-pole double-throw switch (SPDT) K6, according to user's needs, control high-low level by PC and switch to single-pole double-throw switch (SPDT) K7 or K15.If needing tester 1(is instrument 1 in Fig. 2), switch to K7, then transfer to and change turn-off and close K8, change J1 and the J3 interface that turn-off closes K8 and be communicated with, J4 and J2 interface are communicated with, and are transferred to tester 1 after decaying through secondary through the signal of change over switch K8 again.If needing tester 2(is instrument 2 in Fig. 2), switch to K15, then output valve change over switch K16, through the signal of change over switch K16 again through being transferred to tester 2 after the secondary decay.After the one-level attenuator reduces, during the power that can bear greater than tester, re-use the secondary decay when radiofrequency signal, guaranteed that tester can not burn because power is excessive, avoided tester because burning the waste that causes, saved testing cost.
In the situation that power output less (less than 500W) can be selected the power output of measured piece is reduced the power output of measured piece through one-level decay or secondary decay.If select the one-level attenuator to reduce the power output of measured piece, PC is controlled SPDT by high-low level, output work is taken the lead in carrying out the one-level decay by the one-level attenuator, reduce the power output of measured piece, after specifically being decayed via the one-level attenuator by the output 1 of measured piece, arrive the PORT1 interface of specifying single-pole double-throw switch (SPDT) K1, namely the signal after the decay is transferred to the PORT1 interface of K1, and then transfers to K5 by the J1 interface of hilted broadsword six throw switch K5.According to user's needs, control high-low level by PC and switch to single-pole double-throw switch (SPDT) K7 or K15.If need tester 1, switch to K7, the J1 of change over switch K8 and J2 interface are communicated with, and J4 and J3 interface are communicated with, and by change over switch K8, signal directly are transferred to tester 1.If need tester 2, switch to K15, then by change over switch K16, signal directly is transferred to tester 2.Transfer(K8, K16) under the state of acquiescence, J1 and J2 interface are communicated with, and J4 and J3 interface are communicated with, and are directly connected to tester.
If the power output of measured piece is directly decayed by the secondary attenuator, the output 2 of measured piece is via SPDT(K2) be directly switch to SP6T(K5), an interface that is K2 is connected with the J2 interface of hilted broadsword six throw switch K5, the com interface of K5 is communicated with the J2 interface, the power output process SPDT(K2 of measured piece) PORT2 interface directly transfers to K5, then is transferred to next single-pole double-throw switch (SPDT) K6.According to user's needs, control high-low level by PC and switch to single-pole double-throw switch (SPDT) K7 or K15.If need tester 1, switch to K7, the J1 of change over switch K8 and J3 interface are communicated with, and J4 and J2 interface are communicated with, and are transferred to tester 1 after by change over switch K8, signal being decayed through the secondary attenuator again.If need tester 2, switch to K15, then be transferred to again tester 2 after by change over switch K16, signal being transferred to the decay of secondary attenuator process secondary.
In Fig. 1, the course of work of measured piece output 5 is identical with the course of work of output 1, wherein 8 of measured piece output ports in the course of the work, can only allow one road signal link unimpeded, when for example the signal source output signal is to measured piece output 1, other 7 outputs all are in closed condition, i.e. single-pole double-throw switch (SPDT) K2, K3, K4, K9, K10, K11, K12 PORT port and LOAD end connected entrance separately.When if measured piece output 5 carries out work, other 7 outputs also all are in closed condition.
Measured piece output 3,4,6 in Fig. 1,7 identical with the course of work of output 2 with 8 the course of work, wherein 8 of measured piece output ports in the course of the work, can only allow one road signal link unimpeded, when for example the signal source output signal was to measured piece output 2, other 7 outputs all were in closed condition.When if measured piece output 3,4,6,7 or 8 carries out work, other 7 outputs also all are in closed condition.Certainly, the output 3 of measured piece is connected with output also can connect an one-level attenuator, exports 3 identical with the course of work of output 1 with the course of work of output 7 this moment.
Need to prove, in Fig. 1, the output 1 of measured piece described in the present embodiment is connected with output and all is connected with the one-level attenuator, but when not referring to actual test, first output of measured piece must be connected with an one-level attenuator with the 5th output, and need in output with measured piece to refer to the output through the one-level decay to be connected with the one-level attenuator.
The radio-frequency (RF) switch matrix that is used for the radio frequency products test that the present embodiment is enumerated is by 8 input (K1～K4, K9～K12) connect respectively 8 outputs (output 1～output 8) of measured piece, coordinate again 4 single-pole double-throw switch (SPDT)s (K6, K7, K14, K15) to be combined into 16 matrix links, and have 4 Extended Capabilities Port can be in the situation that insufficient-links is standby.When Extended Capabilities Port can not satisfy testing requirement, 16 * 4 even more test links were realized in the same switch matrix unit that can superpose on the basis of existing matrix unit.With respect to present wall scroll test link, many test links of the radio-frequency (RF) switch arranged in matrix that is used for the radio frequency products test that the present embodiment is enumerated, output fracture or the measured piece of a replacing measured piece have frequently been avoided, improved operating efficiency, but also avoided because frequently changing the incorrect link that operation causes, and then measured piece or the tester having avoided causing because of incorrect link burnt, and also avoided the generation of security incident.
The above describes in detail embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-described embodiment; can also make various variations in the ken that those of ordinary skills possess, within these variations all belong to protection scope of the present invention.
Claims (10)
1. one kind is used for the radio-frequency (RF) switch matrix that radio frequency products is tested, it is characterized in that, comprise at least one one-level attenuator, described one-level attenuator connects the dynamo-electric coaxial switch group of RD, the dynamo-electric coaxial switch group of described RD connects at least one secondary attenuator, and the dynamo-electric coaxial switch group of described RD is used for being communicated with one-level attenuator and/or secondary attenuator;
When setting threshold value, the dynamo-electric coaxial switch group of described RD is communicated with one-level attenuator or secondary attenuator when the power output of tested radio frequency products; When setting threshold value, the dynamo-electric coaxial switch group of described RD is communicated with one-level attenuator and secondary attenuator simultaneously when the power output of tested radio frequency products.
2. the radio-frequency (RF) switch matrix for radio frequency products test according to claim 1, it is characterized in that, the dynamo-electric coaxial switch group of described RD comprises at least one change over switch, described one-level attenuator is connected with change over switch, a described change over switch is connected with a secondary attenuator, and described change over switch is used for selecting to be communicated with the secondary attenuator.
3. the radio-frequency (RF) switch matrix for the radio frequency products test according to claim 2, is characterized in that, if enable the secondary attenuator, is communicated with the secondary attenuator by change over switch, then is communicated with tester; Otherwise change over switch directly is communicated with tester.
4. the radio-frequency (RF) switch matrix for radio frequency products test according to claim 1, it is characterized in that, the dynamo-electric coaxial switch group of described RD comprises at least one single-pole double-throw switch (SPDT) and at least one single pole multiple throw, an interface of described single-pole double-throw switch (SPDT) directly is connected with described single pole multiple throw, an interface of single-pole double-throw switch (SPDT) is connected with single pole multiple throw by the one-level attenuator, and single pole multiple throw is connected with the secondary attenuator.
5. the radio-frequency (RF) switch matrix for the radio frequency products test according to claim 4, is characterized in that, if enable the one-level attenuator, single-pole double-throw switch (SPDT) is communicated with the one-level attenuator, and the one-level attenuator is connected with single pole multiple throw; Otherwise single-pole double-throw switch (SPDT) directly is communicated with single pole multiple throw.
6. the radio-frequency (RF) switch matrix for radio frequency products test according to claim 1, it is characterized in that, the dynamo-electric coaxial switch group of described RD comprises at least two single-pole double-throw switch (SPDT)s and at least one single pole multiple throw, one end of at least one single-pole double-throw switch (SPDT) in described single-pole double-throw switch (SPDT) is connected with the one-level attenuator, the other end is connected with described single pole multiple throw, at least one remaining single-pole double-throw switch (SPDT) is connected with single pole multiple throw, single-pole double-throw switch (SPDT) is used for being communicated with single pole multiple throw or load, and single pole multiple throw is connected with the secondary attenuator.
7. the radio-frequency (RF) switch matrix for radio frequency products test according to claim 6, it is characterized in that, if enable the one-level attenuator, be communicated with single pole multiple throw with in single-pole double-throw switch (SPDT) that the one-level attenuator is connected one, remaining single-pole double-throw switch (SPDT) is communicated with load; Otherwise not with single-pole double-throw switch (SPDT) that the one-level attenuator is connected in one be communicated with single pole multiple throw, remaining single-pole double-throw switch (SPDT) is communicated with load.
8. the radio-frequency (RF) switch matrix for radio frequency products test according to claim 7, it is characterized in that, the dynamo-electric coaxial switch group of described RD also comprises at least one change over switch, and a described change over switch is connected with a secondary attenuator, and described change over switch is used for selecting to be communicated with the secondary attenuator.
9. the radio-frequency (RF) switch matrix for the radio frequency products test according to claim 8, is characterized in that, described change over switch and secondary attenuator are at least two, also are provided with single-pole double-throw switch (SPDT) between described single pole multiple throw and change over switch.
10. according to claim 4 or 6 described radio-frequency (RF) switch matrixes for the radio frequency products test, is characterized in that, described single pole multiple throw is hilted broadsword six throw switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310007137.5A CN103094644B (en) | 2013-01-09 | 2013-01-09 | A kind of RF switch matrix for radio frequency products test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310007137.5A CN103094644B (en) | 2013-01-09 | 2013-01-09 | A kind of RF switch matrix for radio frequency products test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103094644A true CN103094644A (en) | 2013-05-08 |
| CN103094644B CN103094644B (en) | 2016-05-11 |
Family
ID=48206957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310007137.5A Active CN103094644B (en) | 2013-01-09 | 2013-01-09 | A kind of RF switch matrix for radio frequency products test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103094644B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647120A (en) * | 2013-12-27 | 2014-03-19 | 成都芯通科技股份有限公司 | Switching matrix for testing combined type radio frequency power amplifier |
| CN104062930A (en) * | 2013-11-29 | 2014-09-24 | 中国空间技术研究院 | Universal touch-type switch matrix control card for liquid crystal display |
| CN104579509A (en) * | 2014-12-11 | 2015-04-29 | 国家无线电监测中心检测中心 | Radio frequency link switching device for IOT (interoperability test) and IOT method |
| CN108873868A (en) * | 2018-07-27 | 2018-11-23 | 中国核动力研究设计院 | Npp safety grade DCS console module automatic test device |
| CN112019394A (en) * | 2019-05-31 | 2020-12-01 | 联合汽车电子有限公司 | Test circuit, test device and test method for evaluating CAN bus signal quality |
| CN114244451A (en) * | 2021-12-16 | 2022-03-25 | 深圳市广和通无线股份有限公司 | Radio frequency channel test circuit, method, device and medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034869A (en) * | 2007-02-02 | 2007-09-12 | 上海杰盛无线通讯设备有限公司 | Self-adaptive bandwidth demodulation device |
| CN101453276A (en) * | 2007-12-04 | 2009-06-10 | 京信通信系统（中国）有限公司 | Detection system for repeater product radio frequency performance, and detection method thereof |
| 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 |
| CN201637844U (en) * | 2009-12-30 | 2010-11-17 | 南京国睿安泰信科技股份有限公司 | Signal transfer special equipment for testing S-band radar microwave assembly |
-
2013
- 2013-01-09 CN CN201310007137.5A patent/CN103094644B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034869A (en) * | 2007-02-02 | 2007-09-12 | 上海杰盛无线通讯设备有限公司 | Self-adaptive bandwidth demodulation device |
| CN101453276A (en) * | 2007-12-04 | 2009-06-10 | 京信通信系统（中国）有限公司 | Detection system for repeater product radio frequency performance, and detection method thereof |
| 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 |
| CN201637844U (en) * | 2009-12-30 | 2010-11-17 | 南京国睿安泰信科技股份有限公司 | Signal transfer special equipment for testing S-band radar microwave assembly |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062930A (en) * | 2013-11-29 | 2014-09-24 | 中国空间技术研究院 | Universal touch-type switch matrix control card for liquid crystal display |
| CN104062930B (en) * | 2013-11-29 | 2017-05-10 | 中国空间技术研究院 | Universal touch-type switch matrix control card for liquid crystal display and application method thereof |
| CN103647120A (en) * | 2013-12-27 | 2014-03-19 | 成都芯通科技股份有限公司 | Switching matrix for testing combined type radio frequency power amplifier |
| CN104579509A (en) * | 2014-12-11 | 2015-04-29 | 国家无线电监测中心检测中心 | Radio frequency link switching device for IOT (interoperability test) and IOT method |
| CN104579509B (en) * | 2014-12-11 | 2018-04-03 | 国家无线电监测中心检测中心 | A kind of radio frequency link switching device and method of testing for IOT |
| CN108873868A (en) * | 2018-07-27 | 2018-11-23 | 中国核动力研究设计院 | Npp safety grade DCS console module automatic test device |
| CN112019394A (en) * | 2019-05-31 | 2020-12-01 | 联合汽车电子有限公司 | Test circuit, test device and test method for evaluating CAN bus signal quality |
| CN114244451A (en) * | 2021-12-16 | 2022-03-25 | 深圳市广和通无线股份有限公司 | Radio frequency channel test circuit, method, device and medium |
| CN114244451B (en) * | 2021-12-16 | 2024-05-10 | 深圳市广和通无线股份有限公司 | Radio frequency access test circuit, method, device and medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103094644B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103094644B (en) | A kind of RF switch matrix for radio frequency products test | |
| CN101453276B (en) | Detection system for repeater product radio frequency performance, and detection method thereof | |
| CN103002473B (en) | A kind of wireless terminal method of testing, device and system | |
| CN105577225B (en) | A kind of power switching device and its method of communication apparatus | |
| CN104519503A (en) | Radio frequency link switching device for mobile communication terminal testing | |
| CN205160550U (en) | Multiport testing arrangement | |
| CN103647120B (en) | Switching matrix for testing combined type radio frequency power amplifier | |
| CN104901638B (en) | Multichannel digital predistortion DPD power amplification systems | |
| CN103746759A (en) | Radio frequency link switching device for type approval LTE (long-term evolution) terminal testing | |
| CN205786886U (en) | Detect the detecting system of multiple combiner simultaneously | |
| CN205246774U (en) | Multiport extension testing arrangement | |
| CN201402208Y (en) | Comprehensive testing device for electro hydraulic control valve | |
| CN203180932U (en) | Radio frequency switching device and system | |
| CN106685544A (en) | Signal switch gating device and method between broadcasting stations and test instruments | |
| CN107566056A (en) | A kind of multichannel T/R components phase conformance testing device and method | |
| CN204349995U (en) | The full-automatic regulating and measuring system of a kind of GSM digital high-frequency amplification station | |
| CN102843200A (en) | Radio frequency test device and mobile terminal test system | |
| CN106405272B (en) | Radio-frequency power amplifier radio frequency matrix test device | |
| CN108802599A (en) | A kind of rf control system and its control method for radio frequency testing | |
| CN103052109A (en) | Method and device for radio frequency consistency test of wireless communication terminal of public network | |
| CN106253997B (en) | A kind of multiband intersection cross modulation test system | |
| CN207571730U (en) | A kind of debugging switching circuit and debugging circuit board | |
| CN201919001U (en) | Quick automatic commissioning test device for radio frequency indexes of device with multiple radio frequency channels | |
| CN205176076U (en) | Switching device who connects multiport testing arrangement and multiport device | |
| CN204649961U (en) | Automatically the test adapter tested for DAM and detection connection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200731 Address after: 610000 No.6 building, hi tech Incubation Park, north section of Tianfu Avenue, Chengdu, Sichuan Province Patentee after: CHENGDU NTS SOFTWARE Co.,Ltd. Address before: 610041, Sichuan high tech Zone, Chengdu Tianfu Road, South extension line, high-tech incubator Park, building 3, 6 Patentee before: CHENGDU NTS TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |