CN103094644B - A kind of RF switch matrix for radio frequency products test - Google Patents
A kind of RF switch matrix for radio frequency products test Download PDFInfo
- Publication number
- CN103094644B CN103094644B CN201310007137.5A CN201310007137A CN103094644B CN 103094644 B CN103094644 B CN 103094644B CN 201310007137 A CN201310007137 A CN 201310007137A CN 103094644 B CN103094644 B CN 103094644B
- Authority
- CN
- China
- Prior art keywords
- switch
- attenuator
- throw
- communicated
- spdt
- 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.)
- Active
Links
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The present invention relates to a kind of RF switch matrix for radio frequency products test, this 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. RF switch matrix of the present invention has not only protected tester not burnt; also reduced the cost of attenuator simultaneously; enable one-level attenuator or secondary attenuator by the dynamo-electric coaxial switch group selection of RD; make not need the measuring accuracy of the measured piece of decaying through two-stage higher, ensured the accuracy of radio frequency products test.
Description
Technical field
The present invention relates to a kind of electrical switchgear, relate in particular to a kind of RF switch matrix for radio frequency products test.
Background technology
In telecommunications context research and development and production process, conventionally need to be to radio frequency products carry out radio-frequency performance test. In product test process; conventionally use identical tester to test the product of different output power; if tester is not protected, be easy to the situation that appearance causes tester to be burnt because power output is too high, improve production cost. Therefore, in the time that radio frequency products is tested, conventionally between test product and tester, attenuator is set at present, reduces the power output of test product and do not burnt with protection tester. If the power output of test product is larger, and the power of attenuator is less, after overdamping, can not realize the object of protection tester. Therefore in order to reach the object of tester protection, the power of the attenuator of use is larger, and therefore cost is higher. In addition, if the power output of test product is lower, after attenuator decay, can make output signal unstable, and then cause test inaccurate, not need to decay through the attenuator of relatively high power for the lower test product of power output. Therefore the attenuator that uses a relatively high power carries out decay to all test products and can cause test inaccurate, and cost is higher.
Summary of the invention
The object that the present invention solves be to overcome the testing cost existing in prior art high, test inaccurate deficiency; a kind of RF switch matrix for radio frequency products test is provided; by RF switch matrix protection tester of the present invention; the situation of not only having avoided tester to be burnt occurs; but also reduced testing cost, ensure the degree of accuracy of test.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of RF switch matrix for 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, in the time that the power output of tested radio frequency products is less than setting threshold value, the dynamo-electric coaxial switch group of described RD is communicated with one-level attenuator or secondary attenuator, in the time that the power output of tested radio frequency products is more than or equal to setting threshold value, the dynamo-electric coaxial switch group of described RD is communicated with one-level attenuator and secondary attenuator simultaneously. the present invention is for the RF switch matrix of radio frequency products test, be provided with 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 the power output of tested radio frequency products be decayed by one-level attenuator, reduce the power output of tested radio frequency products, whether need to enable secondary attenuator by the dynamo-electric coaxial switch group selection of RD again, if the power output after one-level decay is still greater than the power that tester can carry, select to enable secondary attenuator, otherwise do not enable secondary attenuator, the dynamo-electric coaxial switch group of RD is directly communicated with tester. realize the decay of measured piece power output by one-level attenuator and secondary attenuator, avoid using a powerful attenuator, 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 not need the measuring accuracy of the measured piece of decaying through two-stage higher, ensured the accuracy of radio frequency products test. the object that one-level attenuator and secondary attenuator are set is that protection tester is unlikely to be burnt because the power output of tested radio frequency products is too high. the power difference that various testers can carry, the peak power that therefore described setting threshold value can bear according to tester is adjusted.
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 secondary attenuator. In the time that needs use secondary attenuator, be communicated with secondary attenuator by change-over switch, and then be communicated with tester; If do not need to use secondary attenuator, change-over switch is directly 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) is directly connected with described single pole multiple throw, an interface of single-pole double-throw switch (SPDT) is connected with single pole multiple throw by one-level attenuator, and single pole multiple throw is connected with secondary attenuator. If need to use one-level attenuator time, single-pole double-throw switch (SPDT) is communicated with one-level attenuator, and one-level attenuator is connected with single pole multiple throw; If do not need to use one-level attenuator, single-pole double-throw switch (SPDT) is directly 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 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 secondary attenuator. If need to use one-level attenuator time, one in the single-pole double-throw switch (SPDT) being connected with one-level attenuator is communicated with single pole multiple throw, and remaining single-pole double-throw switch (SPDT) is communicated with load; If do not need to use one-level attenuator, one in the single-pole double-throw switch (SPDT) not being connected with one-level attenuator is communicated with single pole multiple throw, and remaining single-pole double-throw switch (SPDT) is communicated with load. Realize the selection of one-level attenuator by least two single-pole double-throw switch (SPDT)s, one end of single-pole double-throw switch (SPDT) is connected with load, in the time that a single-pole double-throw switch (SPDT) is communicated with single pole multiple throw, remaining single-pole double-throw switch (SPDT) is all connected with load, prevent 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, are also provided with single-pole double-throw switch (SPDT) between described single pole multiple throw and change-over switch. When 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, as expansion interface, is connected with the output of tested radio frequency products, is applicable to the more radio frequency products of output port. Expansion interface also can be connected with tester, increases tester, meets different test events.
The present invention also provides a kind of radio frequency products test macro, this test macro comprises RF switch matrix, described RF switch matrix connecting test instrument and measured piece, described measured piece connecting signal source, described signal source, tester and RF switch matrix are connected PC, 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 for the RF switch matrix of radio frequency products test, be provided with 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, avoid using a powerful attenuator, 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 not need the measuring accuracy of the measured piece of decaying through two-stage higher, ensure the accuracy of radio frequency products test.
2, the present invention has at least two change-over switches for the RF switch arranged in matrix of radio frequency products test, can connect at least two testers, can realize multiple test event tests. In RF switch matrix, be provided with at least two single-pole double-throw switch (SPDT)s, can connect at least at least two output channels of measured piece, can realize 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 people is that the instrument that the maloperation that changes the outfit in process causes burns, save the testing time simultaneously, improved testing efficiency.
3, the use of single pole multiple throw makes RF switch matrix have expansion interface, by the test port of ECP Extended Capabilities Port changeable tester or measured piece, avoid different test events to build the test resource waste that different testboards cause, improved testing efficiency simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of RF switch matrix of the present invention;
Fig. 2 is the connection diagram of RF switch matrix of the present invention for radio frequency products test;
Fig. 3 is the workflow diagram of RF switch matrix of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiments of the present invention are not limited to following examples, within the various variations of making under the prerequisite that does not depart 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 RF switch matrix for radio frequency products test, realize the multichannel of radio frequency products and export any link switching between tester, this switching makes arbitrary port of measured piece (measured piece refers to tested radio frequency products) and any tester can realize path.
Object of the present invention is achieved through the following technical solutions:
The present invention comprises the dynamo-electric coaxial switch of RD, one-level attenuator and secondary attenuator for the RF switch matrix of radio frequency products test. One-level attenuator is connected with the dynamo-electric coaxial switch of RD, and the dynamo-electric coaxial switch of RD is connected with secondary attenuator.
With reference to figure 1, Fig. 2, the 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 multiple 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, 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 in the time that an output port of measured piece is communicated with hilted broadsword six throw switches, remaining output port is connected with load, avoids leakage signal. The output 1 of for example 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). While 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, while not being communicated with secondary decay, J1 and J2 interface are communicated with, and J4 and J3 interface are communicated with.
As one preferred embodiment, in RF switch matrix, be also provided with ECP Extended Capabilities Port, 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. ECP Extended Capabilities Port is set and can be used for the more measured piece of test output terminal mouth, increase the adaptability of RF switch matrix. On the other hand, ECP Extended Capabilities Port is set can increase the quantity of disposable test measured piece, the testing efficiency that (change the outfit refer to change measured piece) cause of having avoided frequently changing the outfit is low, and the situation of also having avoided tester that the connection error that may occur because frequently changing the outfit causes or measured piece to be burnt occurs. Hilted broadsword six throw switches are a kind of embodiments of realizing ECP Extended Capabilities Port, can multiple ECP Extended Capabilities Ports be set by the interface number realization that changes single pole multiple throw.
The expansion interface J5 of hilted broadsword six throw switches also can be connected measured piece and/or secondary attenuator with J6, and EXA1, EXA2, EXB1, EXB2 connect secondary attenuator (A1 connects by tie point), tester (A2 connects by tie point), secondary attenuator (B1 connects by tie point), tester (B2 connects by tie point) 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 the waste of different testboards to test resource and testing efficiency.
As one preferred embodiment, one-level attenuator in the 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 attenuator/secondary attenuators and pad value are configurable not identical yet.
With reference to figure 2, the RF switch matrix that the present invention tests for radio frequency products is in the connection diagram of radio frequency products test macro. Radio frequency products test macro comprises PC, signal source, measured piece, RF switch matrix and tester for 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 RF switch matrix of testing for radio frequency products, signal is transferred to the RF switch matrix for radio frequency products test by measured piece, is connected with tester for the RF switch matrix of radio frequency products test. Wherein comprise the dynamo-electric coaxial switch of one-level attenuator, secondary attenuator and RD for the RF switch matrix of radio frequency products test. The dynamo-electric coaxial switch of RD comprises SPDT(single-pole double-throw switch (SPDT)), SP6T(hilted broadsword six throw switches), Transfer(change-over switch) three kinds of switches, and three kinds of switches connect successively.
RF switch matrix for 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 being 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 is large (as being greater than 500W), use one-level attenuator and secondary attenuator to decay to the power output of measured piece 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 low and high level (low and high level of RS232 serial ports), single-pole double-throw switch (SPDT) to be carried out to switching controls, 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 RF switch matrix for radio frequency products test that the present embodiment is enumerated is: signal source, to measured piece (being tested radio frequency products) input power, makes measured piece reach rated output 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, to protect tester not burnt. Power output large (being greater than 500W) in the situation that, carry out single-pole double-throw switch (SPDT) switching by PC control low and high level, output work is taken the lead in carrying out one-level decay by one-level attenuator, reduce the power output of measured piece. For example, after being decayed via one-level attenuator by the output 1 of measured piece, arrive the PORT1 interface of specifying single-pole double-throw switch (SPDT) K1, the signal after decay is transferred to the PORT1 interface of K1, then the PORT1 interface of PC control K1 is communicated with the J1 interface of K5, transfers to K5 by the J1 interface of hilted broadsword six throw switch K5. Meanwhile, single-pole double-throw switch (SPDT) K2, K3, K4 PORT interface is separately communicated with LOAD interface. Hilted broadsword six throw switches are once only communicated with an interface in J1 to J6 interface, and its signal transmission path is unique, have so just avoided multiple signals to enter different links simultaneously, 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, be switched to single-pole double-throw switch (SPDT) K7 or K15 by PC control low and high level. If needing tester 1(is the instrument 1 in Fig. 2), be switched to K7, then transfer to and change turn-off and close K8, change that turn-off closes the J1 of K8 and J3 interface is communicated with, J4 and J2 interface are communicated with, and are transferred to tester 1 again through the signal of change-over switch K8 after secondary decay. If needing tester 2(is the instrument 2 in Fig. 2), be switched to K15, then output valve change-over switch K16, after secondary decay, be transferred to tester 2 again through the signal of change-over switch K16. When radiofrequency signal is after one-level attenuator reduces, while being greater than the power that tester can bear, re-use secondary decay, guarantee that tester can not burn because power is excessive, avoid tester because burning the waste causing, save testing cost.
Power output relatively little (being less than 500W) in the situation that, can select the power output of measured piece to reduce through one-level decay or secondary decay the power output of measured piece. If select one-level attenuator to reduce the power output of measured piece, PC is by low and high level control SPDT, output work is taken the lead in carrying out one-level decay by one-level attenuator, reduce the power output of measured piece, after specifically being decayed via one-level attenuator by the output 1 of measured piece, arrive the PORT1 interface of specifying single-pole double-throw switch (SPDT) K1, the signal after 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, be switched to single-pole double-throw switch (SPDT) K7 or K15 by PC control low and high level. If need tester 1, be switched 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 are directly transferred to tester 1. If need tester 2, be switched to K15, then by change-over switch K16, signal be directly 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 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 J2 interface, the power output of measured piece is through SPDT(K2) PORT2 interface directly transfer to K5, then be transferred to next single-pole double-throw switch (SPDT) K6. According to user's needs, be switched to single-pole double-throw switch (SPDT) K7 or K15 by PC control low and high level. If need tester 1, be switched to K7, the J1 of change-over switch K8 and J3 interface are communicated with, and J4 and J2 interface are communicated with, and by change-over switch K8, signal are transferred to tester 1 again after the decay of secondary attenuator. If need tester 2, be switched to K15, then by change-over switch K16, signal transferred to secondary attenuator and be transferred to again tester 2 through after secondary decay.
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 a road signal link unimpeded, for example, when signal source output signal is to measured piece output 1, other 7 outputs are all in closed condition, and single-pole double-throw switch (SPDT) K2, K3, K4, K9, K10, K11, K12 PORT port and LOAD separately holds connected entrance. If when measured piece output 5 carries out work, other 7 outputs are also all in closed condition.
In Fig. 1, measured piece output 3,4,6,7 is 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 a road signal link unimpeded, for example, when signal source output signal is to measured piece output 2, other 7 outputs are all in closed condition. If when measured piece output 3,4,6,7 or 8 carries out work, other 7 outputs are also all in closed condition. Certainly, the output 3 of measured piece also can be connected an one-level attenuator with output 7, now exports 3 identical with the course of work of output 1 with the course of work of output 7.
It should be noted that, in Fig. 1, the output 1 of measured piece described in the present embodiment is all connected with one-level attenuator with output 5, but first output of measured piece must be connected with an one-level attenuator with the 5th output while not referring to actual test, and refer to and will in the output of measured piece, need the output through one-level decay to be connected with one-level attenuator.
The RF switch matrix for 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 ECP Extended Capabilities Ports can be for subsequent use in the situation that of insufficient-links. In the time that ECP Extended Capabilities Port can not meet testing requirement, the switch matrix unit that can superpose same on the basis of existing matrix unit, realizes 16 × 4 even more test links. With respect to current wall scroll test link, many test links of the RF switch arranged in matrix for radio frequency products test that the present embodiment is enumerated, output fracture or the measured piece of a replacing measured piece are frequently avoided, improve operating efficiency, but also avoid because frequently changing the incorrect link that operation causes, and then avoided the measured piece or the tester that cause because of incorrect link to be burnt, also avoid the generation of security incident.
By reference to the accompanying drawings embodiments of the invention are described in detail above; but the present invention is not limited to above-described embodiment; in the ken possessing those of ordinary skill in the art, can also make various variations, within these variations all belong to protection scope of the present invention.
Claims (2)
1. for a RF switch matrix for radio frequency products test, it is characterized in that, comprise that at least one one-level declinesSubtract device, described one-level attenuator connects the dynamo-electric coaxial switch group of RD, and the dynamo-electric coaxial switch group of described RD is connected toA few secondary attenuator, the dynamo-electric coaxial switch group of described RD is used for being communicated with one-level attenuator and/or secondary decayDevice;
In the time that the power output of tested radio frequency products is less than setting threshold value, the dynamo-electric coaxial switch group of described RD is communicated withOne-level attenuator or secondary attenuator; When the power output of tested radio frequency products is more than or equal to setting threshold valueTime, the dynamo-electric coaxial switch group of described RD is communicated with one-level attenuator and secondary attenuator simultaneously; Described RD is dynamo-electric sameAxle switches set comprises at least two change-over switches, and described change-over switch is connected with a secondary attenuator, described in turnChange switch for selecting to be communicated with secondary attenuator; The dynamo-electric coaxial switch group of described RD comprises that at least two hilted broadswords are twoThrow switch and at least one single pole multiple throw, at least one single-pole double-throw switch (SPDT) in described single-pole double-throw switch (SPDT)One end be connected with one-level attenuator, the other end is connected with described single pole multiple throw, remaining at least one is singleDouble-pole double throw switch is connected with single pole multiple throw, and single-pole double-throw switch (SPDT) is used for being communicated with single pole multiple throw or load,Single pole multiple throw is connected with change-over switch by single-pole double-throw switch (SPDT);
If enable secondary attenuator, be communicated with secondary attenuator by change-over switch, then be communicated with tester, otherwiseChange-over switch is directly communicated with tester;
If enable one-level attenuator, a connection hilted broadsword in the single-pole double-throw switch (SPDT) being connected with one-level attenuator is thrown moreSwitch, remaining single-pole double-throw switch (SPDT) is communicated with load, otherwise the single-pole double-throw switch (SPDT) not being connected with one-level attenuatorIn one be communicated with single pole multiple throw, remaining single-pole double-throw switch (SPDT) is communicated with load;
Described secondary attenuator is at least two, is also provided with single-pole double throw between described single pole multiple throw and change-over switchSwitch, when test, change-over switch is connected with tester, and each change-over switch connects different testers,Select required tester by the single-pole double-throw switch (SPDT) between single pole multiple throw and change-over switch.
2. the RF switch matrix for radio frequency products test according to claim 1, is characterized in that instituteStating 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 CN103094644A (en) | 2013-05-08 |
| CN103094644B true 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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103647120B (en) * | 2013-12-27 | 2015-05-13 | 成都芯通科技股份有限公司 | Switching matrix for testing combined type radio frequency power amplifier |
| 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 |
| 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 |
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***（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***（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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103094644A (en) | 2013-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103094644B (en) | A kind of RF switch matrix for radio frequency products test | |
| CN105577225B (en) | A kind of power switching device and its method of communication apparatus | |
| CN103002473B (en) | A kind of wireless terminal method of testing, device and system | |
| CN104519503A (en) | Radio frequency link switching device for mobile communication terminal testing | |
| CN204188730U (en) | Based on the multiport extend testing platform of Two-port netwerk vector network analyzer | |
| CN101453276A (en) | Detection system for repeater product radio frequency performance, and detection method thereof | |
| CN107817368A (en) | A kind of measurement apparatus and measuring method of multichannel S parameter | |
| CN205160550U (en) | Multiport testing arrangement | |
| CN103647120B (en) | Switching matrix for testing combined type radio frequency power amplifier | |
| CN205786886U (en) | Detect the detecting system of multiple combiner simultaneously | |
| CN103746759A (en) | Radio frequency link switching device for type approval LTE (long-term evolution) terminal testing | |
| CN205246774U (en) | Multiport extension testing arrangement | |
| CN106685544A (en) | Signal switch gating device and method between broadcasting stations and test instruments | |
| CN203180932U (en) | Radio frequency switching device and system | |
| CN110418369A (en) | A kind of test device | |
| CN107566056A (en) | A kind of multichannel T/R components phase conformance testing device and method | |
| CN105323015A (en) | Device for realizing passive device testing | |
| CN214201603U (en) | Switch matrix type microwave signal testing device | |
| CN110109070A (en) | A kind of high-power response apparatus test device | |
| CN103929253B (en) | RF switching device for Type Approval DFS test | |
| CN103236887A (en) | Low intermodulation radio frequency coaxial switch testing array | |
| CN103052109A (en) | Method and device for radio frequency consistency test of wireless communication terminal of public network | |
| CN108802599A (en) | A kind of rf control system and its control method for radio frequency testing | |
| CN205356358U (en) | Attenuator is divided to two programme -controlled merits | |
| CN205067718U (en) | High voltage electric energy metering device global error test system |
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 |