CN203180932U - Radio frequency switching device and system - Google Patents
Radio frequency switching device and system Download PDFInfo
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- CN203180932U CN203180932U CN2012206983883U CN201220698388U CN203180932U CN 203180932 U CN203180932 U CN 203180932U CN 2012206983883 U CN2012206983883 U CN 2012206983883U CN 201220698388 U CN201220698388 U CN 201220698388U CN 203180932 U CN203180932 U CN 203180932U
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Abstract
The utility model provides a radio frequency switching device including a first switch group, a second switch group, a first power amplifier and a control unit. When the first switch group is in a first position, a testing port of a to-be-tested device is connected with a comprehensive testing instrument. When the first switch group is in a second position, the testing port is connected with an input terminal of the first power amplifier and a first output terminal of the first power amplifier is connected with the comprehensive testing instrument. When the second switch group is in the first position, a second output terminal of the first power amplifier is connected with a frequency spectrograph. When a second switch group is in the second position, the second output terminal of the first power amplifier is connected with a vector signal producer. Therefore, different connection statuses of the testing port and the three testing instruments that are the comprehensive testing instrument, the frequency spectrograph and the vector signal producer are realized by controlling statuses of the two switch groups through the control unit according to the utility model, so that different radio frequency characteristic testing of the to-be-tested device is realized without connecting with a radio frequency link manually. The utility model also provides a radio frequency switching system.
Description
Technical field
The utility model relates to the radio communication field tests, especially relates to a kind of RF switching device and system.
Background technology
Fast development along with wireless communication technology, portable terminal is widely used in all trades and professions, and poor for the speech quality of avoiding portable terminal to occur as far as possible, message transmission rate is low and to various problems such as like product interference, usually in the portable terminal delivery test, by testers such as comprehensive tester, frequency spectrograph, vector signal generators the radiofrequency characteristics of portable terminal is tested.
At present, it mainly is the radio frequency link that manually connects portable terminal and various testers by the tester that the radiofrequency characteristics of portable terminal is tested, and because the kind of the radiofrequency characteristics that portable terminal need be tested is more, therefore, during by manual connection portable terminal and various tester, cause various problems such as connecting many, inefficiency frequent, consuming time easily, and when the tester is tired out, easily cause radio frequency link connection error, thereby cause the test result mistake even damage tester or tested mobile terminal.
The utility model content
The technical problem that the utility model solves is to provide a kind of RF switching device and system, can realize test to the radiofrequency characteristics of equipment under test not needing manually to connect radio frequency link between equipment under test and the tester.
For this reason, the technical scheme of the utility model technical solution problem is:
The utility model provides a kind of RF switching device, and described device comprises: first switches set, second switch group, first power splitter and control unit; Wherein, described first power splitter has an input and first, second output;
When described first switches set places first, the test port of equipment under test links to each other with comprehensive tester, and the input of described test port and described first power splitter disconnects, when described first switches set places second, described test port links to each other with the input of described first power splitter and disconnects with comprehensive tester, and first output of described first power splitter links to each other with comprehensive tester;
When described second switch group places first, second output of described first power splitter links to each other with frequency spectrograph and disconnects with the vector signal generator, when described second switch group placed second, second output of described first power splitter linked to each other with the vector signal generator and disconnects with frequency spectrograph;
Described control unit is used for described first switches set of control and places first or second, and control second switch group places first or second.
Preferably, when described first switches set placed the 3rd, the test port of equipment under test linked to each other with the input of described first power splitter and disconnects with comprehensive tester, and first output of described first power splitter and comprehensive tester disconnection;
Described control unit also is used for described first switches set of control and places the 3rd.
Preferably, described first switches set comprises a double-point double-throw switch.
Preferably, described second switch group comprises a single-pole double-throw switch (SPDT).
Preferably, described device also comprises first attenuator; Described first attenuator is between the input of described first switches set and described first power splitter.
Preferably, described device also comprises second attenuator; Described second attenuator is between described second switch group and described frequency spectrograph.
Preferably, described device also comprises isolator, and described isolator is between described second switch group and described vector signal generator.
Preferably, described device also comprises the 3rd switches set and second power splitter; Described second power splitter has an input and first, second output; First output of described second power splitter links to each other with analog signal generator;
When described second switch group placed second, the output port of described first power splitter linked to each other with the vector signal generator and comprises with the frequency spectrograph disconnection:
When described second switch group placed second and described the 3rd switches set to place first, second output of described first power splitter linked to each other with the vector signal generator, and disconnected with frequency spectrograph and analog signal generator; When described second switch group placed second and described the 3rd switches set to place second, second output of described first power splitter linked to each other with the input of described second power splitter and second output of described second power splitter links to each other with the vector signal generator;
Described control unit also is used for described the 3rd switches set of control and places first or second.
Preferably, described the 3rd switches set comprises a double-point double-throw switch.
The utility model also provides a kind of radio frequency switched system, and described system comprises: power module, test interface, control interface, first, second, and third radio frequency interface and as any described RF switching device of claim 1 to 9;
Described power module is used for to described control unit power supply;
Described test interface is used for linking to each other with the test port of equipment under test;
Described control interface is used for the control unit sending controling instruction to described RF switching device;
Described first, second, and third radio frequency interface is respectively applied to connect comprehensive tester, vector signal generator and frequency spectrograph.
By technique scheme as can be known, RF switching device in the utility model is by first switches set, the second switch group is connected test port and the comprehensive tester of equipment under test with first power splitter, three kinds of testers of frequency spectrograph and vector signal generator, and control first switches set respectively by control unit and place first or second, and control second switch group places first or second connection status that realizes described test port and described three kinds of testers, thereby the radio frequency link that realization does not need manually to connect between equipment under test and the tester can be realized the different radiofrequency characteristics of equipment under test is tested.
Description of drawings
One specific embodiment of the RF switching device that Fig. 1 provides for the utility model;
Another specific embodiment of the RF switching device that Fig. 2 provides for the utility model;
Another specific embodiment of the RF switching device that Fig. 3 provides for the utility model;
One specific embodiment of the radio frequency switched system that Fig. 4 provides for the utility model.
Embodiment
Embodiment one
The utility model provides a specific embodiment of RF switching device, and among this embodiment, described RF switching device comprises: first switches set, second switch group, first power splitter and control unit; Wherein, described first power splitter has an input, and first output and second output totally two outputs.
When described first switches set places first, the test port of equipment under test links to each other with comprehensive tester, and the input of described test port and described first power splitter disconnects, when described first switches set places second, described test port links to each other with the input of described first power splitter and described test port and comprehensive tester disconnection, and first output of described first power splitter links to each other with comprehensive tester.Here, first switches set is made up of at least one switch, and switch comprises: single-pole double-throw switch (SPDT), double-point double-throw switch, multitool commutator etc. have the device of switch character.Power splitter full name power divider is a kind ofly one road input signal energy can be divided into that the output of two-way or multichannel equates or the device of unequal energy.In this embodiment, first power splitter is divided into two-way with one tunnel output signal.Equipment under test can be portable terminal, and test port can be GSM/GPRS radio-frequency (RF) output end mouth or WLAN radio-frequency (RF) output end mouth.
When described second switch group places first, second output of described first power splitter links to each other with frequency spectrograph and second output and the vector signal generator of described first power splitter disconnect, when described second switch group placed second, second output of described first power splitter linked to each other with the vector signal generator and second output and the frequency spectrograph of described first power splitter disconnect.Here, the second switch group is made up of at least one switch, and switch comprises: single-pole double-throw switch (SPDT), double-point double-throw switch, single pole multiple throw etc.
Described control unit is used for control first switches set and places first or second, and control second switch group places first or second.
By technique scheme as can be known, RF switching device among this embodiment is by first switches set, the second switch group is connected test port and the comprehensive tester of equipment under test with first power splitter, three kinds of testers of frequency spectrograph and vector signal generator, and control first switches set respectively by control unit and place first or second, and control second switch group places first or second connection status that realizes described test port and described three kinds of testers, thereby the radio frequency link that realization does not need manually to connect between equipment under test and the tester can be realized the different radiofrequency characteristics of equipment under test is tested.
Particularly, by the RF switching device among this embodiment to the test process of the radiofrequency characteristics of equipment under test be:
Control first switches set by control unit and place first, this moment, no matter the second switch group placed first still second, all have the test port of equipment under test to link to each other with comprehensive tester, and the input of test port and first power splitter disconnected.When the test port of equipment under test is specially GSM/GPRS radio-frequency (RF) output end mouth, can make up by any or any of the following radiofrequency characteristics of described comprehensive tester test: GSM frequency plot error, the GSM transmitting power, GSM power is to time template, GSM (DCS) frequency range output modulation and switch frequency spectrum (GSM pattern), the GSM bad frame, the GSM static sensitivity, GSM can use the incoming level scope, GSM-R emission modulation and switch frequency spectrum, GPRS frequency plot error, the GPRS transmitting power, GPRS power is to time template, the static receiving sensitivity of GSM (DCS) frequency range output modulation and switch frequency spectrum (GPRS pattern) or GPRS.
Controlling first switches set by control unit places second and second switch group to place first, this moment, the test port of equipment under test linked to each other with the input of first power splitter, first output of first power splitter links to each other with comprehensive tester, and second output of first power splitter links to each other with frequency spectrograph.When the test port of equipment under test was GSM/GPRS radio-frequency (RF) output end mouth, can be by any or a combination arbitrarily of the following radiofrequency characteristics of described comprehensive tester and frequency spectrograph test: GSM (GSM-R) operating state be spuious, spuious in spuious in GSM (GSM-R) emission band, GSM (GSM-R) broadband noise, GSM (GSM-R) receiving belt, GPRS broadband noise or GPRS receiving belt are interior spuious.When the test port of equipment under test is WLAN radio-frequency (RF) output end mouth, close comprehensive tester this moment, can make up by any or any of the following radiofrequency characteristics of described frequency spectrograph test: WLAN transmitted power level, WLAN emission spectrum template or WLAN modulation quality.
Controlling first switches set by control unit places second and second switch group to place second, this moment, the test port of equipment under test linked to each other with the input of first power splitter, first output of first power splitter links to each other with comprehensive tester, and second output of first power splitter links to each other with the vector signal generator.When the test port of equipment under test is WLAN radio-frequency (RF) output end mouth, close comprehensive tester this moment, can be by any or the minimum incoming level of both combination: WLAN or the WLAN maximum input level of the following radiofrequency characteristics of described vector signal generator test.
Here, first switches set can also be able to place the 3rd except placing first, second, and when described first switches set places the 3rd, the test port of equipment under test links to each other with the input of described first power splitter and test port and the comprehensive tester of equipment under test disconnect, and first output of described first power splitter and comprehensive tester disconnection.This moment, described control unit can also place the 3rd for control first switches set.First switches set can comprise two single-pole double-throw switch (SPDT)s.When the test port that needs equipment under test and comprehensive tester disconnection, then need not close comprehensive tester like this.For example, controlling first switches set by control unit places the 3rd and second switch group to place second, this moment, the test port of equipment under test linked to each other with the input of first power splitter, first output of first power splitter and comprehensive tester disconnect, and second output of first power splitter links to each other with the vector signal generator.When the test port of equipment under test is WLAN radio-frequency (RF) output end mouth, can be by any or the minimum incoming level of both combination: WLAN or the WLAN maximum input level of the following radiofrequency characteristics of described vector signal generator test.
Among this embodiment, described device can also comprise at least one attenuator, and described at least one attenuator is arranged in described device, is used for restricting signal intensity, to avoid the damage of tester or equipment under test.For example, described device also comprises first attenuator, and described first attenuator is between the input of described first switches set and described first power splitter.Again for example, described device also comprises second attenuator; Described second attenuator is between described second switch group and described frequency spectrograph.
In this embodiment, described device can also comprise isolator, and isolator is used for the anti-tester that causes of irritating of anti-stop signal to be damaged.For example, described isolator is between described second switch group and described vector signal generator.
In this embodiment, can connect by coaxial cable between each device.
In fact, first switches set can comprise a double-point double-throw switch, is illustrated below by an embodiment.
Embodiment two
See also Fig. 1, the utility model also provides another specific embodiment of RF switching device, and among this embodiment, first switches set is a double-point double-throw switch.Described RF switching device comprises: double-point double-throw switch 101, second switch group 102, first power splitter 103 and control unit (not shown).Wherein, described first power splitter 103 has an input and first output, second output.
In fact described double-point double-throw switch 101 is made up of first switch and second switch, and wherein, first switch places the 1st or the 2nd, and second switch places the 3rd or the 4th.When first switch of double-point double-throw switch 101 places the 2nd and second switch to place the 3rd, be equivalent to double-point double-throw switch 101 and place first, this moment, the test port of equipment under test 104 linked to each other with comprehensive tester 105, and the input of described test port and described first power splitter 103 disconnects.When first switch of double-point double-throw switch 101 places the 1st and second switch to place the 4th, be equivalent to double-point double-throw switch 101 and place second, this moment, described test port linked to each other with the input of described first power splitter 103 and described test port and comprehensive tester 105 disconnections, and first output of described first power splitter links to each other with comprehensive tester.
When described second switch group 102 places first, second output of described first power splitter 103 links to each other with frequency spectrograph 107 and second output and the vector signal generator 106 of described first power splitter 103 disconnect, when described second switch group 102 placed second, second output of described first power splitter 103 linked to each other with vector signal generator 106 and second output and the frequency spectrograph 107 of described first power splitter disconnect.
Control unit is used for control double-point double-throw switch 101 and places first or second, and control second switch group places first or second.Wherein, control unit can realize that control double-point double-throw switch 101 places first or second by the pin level on the control double-point double-throw switch 101.
As can be seen, among this embodiment, first switches set is a double-point double-throw switch.In fact, in other embodiments, first switches set also can be made up of the switch of other types.For example, first switches set can be composed in series by a plurality of double-point double-throw switchs, perhaps is made up of two single-pole double-throw switch (SPDT)s, or is made up of etc. the multitool commutator.That is to say that the concrete form of first switches set does not add restriction, the function that only needs to realize first switches set gets final product.
The second switch group can comprise a single-pole double-throw switch (SPDT), is illustrated below by an embodiment.
Embodiment three
See also Fig. 2, the utility model also provides another specific embodiment of RF switching device, and among this embodiment, first switches set is that a double-point double-throw switch and second switch group are a single-pole double-throw switch (SPDT).Here, first switches set can also be replaced by other forms of switches set.Described RF switching device comprises: double-point double-throw switch 101, single-pole double-throw switch (SPDT) 201, first power splitter 103 and control unit (not shown).Wherein, described first power splitter 103 has an input and first output, second output.
In fact described double-point double-throw switch 101 is made up of first switch and second switch, and wherein, first switch places the 1st or the 2nd, and second switch places the 3rd or the 4th.When first switch of double-point double-throw switch 101 places the 2nd and second switch to place the 3rd, be equivalent to double-point double-throw switch 101 and place first, this moment, the test port of equipment under test 104 linked to each other with comprehensive tester 105, and the input of described test port and described first power splitter 103 disconnects.When first switch of double-point double-throw switch 101 places the 1st and second switch to place the 4th, be equivalent to double-point double-throw switch 101 and place second, this moment, described test port linked to each other with the input of described first power splitter 103 and described test port and comprehensive tester 105 disconnections, and first output of described first power splitter links to each other with comprehensive tester.
When described single-pole double-throw switch (SPDT) 201 places first, be the 1st shown in Fig. 2, second output of described first power splitter 103 links to each other with frequency spectrograph 107 and second output and the vector signal generator 106 of described first power splitter 103 disconnect, when described single-pole double-throw switch (SPDT) 201 places second, be the 2nd shown in Fig. 2, second output of described first power splitter 103 links to each other with vector signal generator 106 and second output and the frequency spectrograph 107 of described first power splitter disconnect.
Control unit is used for control double-point double-throw switch 101 and places first or second, and control single-pole double-throw switch (SPDT) 201 places first or second.Wherein, control unit can realize that control double-point double-throw switch 101 places first or second by the pin level on the control double-point double-throw switch 101.Control unit also can realize that control single-pole double-throw switch (SPDT) 201 places first or second by the pin level on the control single-pole double-throw switch (SPDT) 201.
As can be seen, among this embodiment, the second switch group is a single-pole double-throw switch (SPDT).In fact, in other embodiments, the second switch group also can be made up of the switch of other types.For example, first switches set can be composed in series by a plurality of single-pole double-throw switch (SPDT)s, perhaps is made up of double-point double-throw switch, or is made up of etc. the multitool commutator.That is to say that the concrete form of second switch group does not add restriction, the function that only needs to realize the second switch group gets final product.
In some cases, also need to measure by analog signal generator the radiofrequency characteristics of equipment under test.This moment, RF switching device need add a switches set and a power splitter, was illustrated below by an embodiment.
Embodiment four
See also Fig. 3, the utility model also provides another specific embodiment of RF switching device, and among this embodiment, first switches set is that a double-point double-throw switch and second switch group are a single-pole double-throw switch (SPDT).Here, first switches set and second switch group all can be replaced by other forms of switches set.Described RF switching device comprises: double-point double-throw switch 101, double-point double-throw switch 301, single-pole double-throw switch (SPDT) 201, first power splitter 103, second power splitter 302 and control unit (not shown).Wherein, described first power splitter 103 has an input and first output, second output.Described second power splitter 302 has an input and first output, second output, and first output of second power splitter 302 links to each other with analog signal generator 303.
In fact double-point double-throw switch 101 is made up of first switch and second switch, and wherein, first switch places the 1st or the 2nd, and second switch places the 3rd or the 4th.When first switch of double-point double-throw switch places the 2nd and second switch to place the 3rd, be equivalent to double-point double-throw switch and place first, this moment, the test port of equipment under test 104 linked to each other with comprehensive tester 105, and the input of described test port and described first power splitter 103 disconnects.When first switch of double-point double-throw switch 101 places the 1st and second switch to place the 4th, be equivalent to double-point double-throw switch 101 and place second, this moment, described test port linked to each other with the input of described first power splitter 103 and described test port and comprehensive tester 105 disconnections, and first output of described first power splitter links to each other with comprehensive tester.
Double-point double-throw switch 301 is made up of the 3rd switch and the 4th switch, and wherein, the 3rd switch places the 1st or the 2nd, and the 4th switch places the 3rd or the 4th.
When described single-pole double-throw switch (SPDT) 201 places first, be the 1st shown in Fig. 2, second output of described first power splitter 103 links to each other with frequency spectrograph 107 and second output and the vector signal generator 106 of described first power splitter 103 disconnect, described single-pole double-throw switch (SPDT) 201 places second, be the 2nd shown in Fig. 2, and double-point double-throw switch 301 places first, be that the 3rd switch of double-point double-throw switch 301 is when placing the 1st and the 4th switch to place the 4th, second output of described first power splitter 103 links to each other with vector signal generator 106, and second output of described first power splitter 103 and frequency spectrograph 107 and analog signal generator 303 all disconnect.Described single-pole double-throw switch (SPDT) 201 places second, be the 2nd shown in Fig. 2, and double-point double-throw switch 301 places second, be that the 3rd switch of double-point double-throw switch 301 is when placing the 2nd and the 4th switch to place the 3rd, second output of described first power splitter 103 links to each other with the input of described second power splitter 302, and second output of described second power splitter 302 links to each other with vector signal generator 106.
Control unit is used for control double-point double-throw switch 101 and places first or second, control second switch group to place first or second and control described double-point double-throw switch 301 to place first or second.Wherein, control unit can realize that control double-point double-throw switch 101 places first or second by the pin level on the control double-point double-throw switch 101.Control unit also can realize that control single-pole double-throw switch (SPDT) 201 places first or second by the pin level on the control single-pole double-throw switch (SPDT) 201.Control unit also can realize that control double-point double-throw switch 301 places first or second by the pin level on the control double-point double-throw switch 301.
In fact, in other embodiments, double-point double-throw switch 301 also can be the 3rd switches set of other types.For example, the 3rd switches set can be composed in series by a plurality of single-pole double-throw switch (SPDT)s, perhaps is made up of a plurality of double-point double-throw switchs, or is made up of etc. the multitool commutator.That is to say that the concrete form of the 3rd switches set does not add restriction, the function that only needs to realize the 3rd switches set gets final product.
In this embodiment, need when measuring radiofrequency characteristics by the vector signal generator place second by control unit control double-point double-throw switch 101, single-pole double-throw switch (SPDT) 102 places second and double-point double-throw switch 301 to place first.
In addition, in this embodiment, utilize the concrete test process of analog signal generator testing radio frequency characteristic to be:
Place second by control unit control double-point double-throw switch 101, single-pole double-throw switch (SPDT) 102 places second and double-point double-throw switch 301 to place second, this moment, the test port of equipment under test linked to each other with the input of first power splitter, first output of first power splitter links to each other with comprehensive tester, and second output of first power splitter links to each other with the input of second power splitter, first output of second power splitter links to each other with analog signal generator, and second output of second power splitter links to each other with the vector signal generator.When the test port of equipment under test was GSM/GPRS radio-frequency (RF) output end mouth, can test following radiofrequency characteristics by described vector signal generator, analog signal generator and comprehensive tester: the GSM intermodulation suppressed.
Embodiment five
See also Fig. 4, the utility model also provides a kind of specific embodiment of radio frequency switched system, and described system comprises: power module 401, test interface 402, control interface 403, first radio frequency interface 404, second radio frequency interface 405 and the 3rd radio frequency interface 406 and RF switching device as shown in Figure 2.Wherein, RF switching device comprises double-point double-throw switch 101, single-pole double-throw switch (SPDT) 201, first power splitter 103 and control unit 407.Wherein, RF switching device concrete structure and realization function and embodiment three, RF switching device namely shown in Figure 2 is identical, repeats no more here.
Among this embodiment, power module 401 can be power transfer module, the 110V alternating voltage of outside input is converted to the direct voltage of 24V.Control unit 407 can be the ARM control board, the pin level of described ARM control board control double-point double-throw switch 101 and single-pole double-throw switch (SPDT) 201.Control interface 403 can be RJ45 standard industry interface.
Here, the specific embodiment of RF switching device any one RF switching device that can provide for the utility model.
The radio frequency switched system that the utility model provides can also comprise or combination in any in indicator light, power interface, the mains switch.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a RF switching device is characterized in that, described device comprises: first switches set, second switch group, first power splitter and control unit; Wherein, described first power splitter has an input and first, second output;
When described first switches set places first, the test port of equipment under test links to each other with comprehensive tester, and the input of described test port and described first power splitter disconnects, when described first switches set places second, described test port links to each other with the input of described first power splitter and disconnects with comprehensive tester, and first output of described first power splitter links to each other with comprehensive tester;
When described second switch group places first, second output of described first power splitter links to each other with frequency spectrograph and disconnects with the vector signal generator, when described second switch group placed second, second output of described first power splitter linked to each other with the vector signal generator and disconnects with frequency spectrograph;
Described control unit is used for described first switches set of control and places first or second, and control second switch group places first or second.
2. device according to claim 1, it is characterized in that, when described first switches set placed the 3rd, the test port of equipment under test linked to each other with the input of described first power splitter and disconnects with comprehensive tester, and first output of described first power splitter and comprehensive tester disconnection;
Described control unit also is used for described first switches set of control and places the 3rd.
3. device according to claim 1 is characterized in that, described first switches set comprises a double-point double-throw switch.
4. device according to claim 1 is characterized in that, described second switch group comprises a single-pole double-throw switch (SPDT).
5. device according to claim 1 is characterized in that, described device also comprises first attenuator; Described first attenuator is between the input of described first switches set and described first power splitter.
6. device according to claim 1 is characterized in that, described device also comprises second attenuator; Described second attenuator is between described second switch group and described frequency spectrograph.
7. device according to claim 1 is characterized in that, described device also comprises isolator, and described isolator is between described second switch group and described vector signal generator.
8. device according to claim 1 is characterized in that, described device also comprises the 3rd switches set and second power splitter; Described second power splitter has an input and first, second output; First output of described second power splitter links to each other with analog signal generator;
When described second switch group placed second, the output port of described first power splitter linked to each other with the vector signal generator and comprises with the frequency spectrograph disconnection:
When described second switch group placed second and described the 3rd switches set to place first, second output of described first power splitter linked to each other with the vector signal generator, and disconnected with frequency spectrograph and analog signal generator; When described second switch group placed second and described the 3rd switches set to place second, second output of described first power splitter linked to each other with the input of described second power splitter and second output of described second power splitter links to each other with the vector signal generator;
Described control unit also is used for described the 3rd switches set of control and places first or second.
9. device according to claim 8 is characterized in that, described the 3rd switches set comprises a double-point double-throw switch.
10. a radio frequency switched system is characterized in that, described system comprises: power module, test interface, control interface, first, second, and third radio frequency interface and as any described RF switching device of claim 1 to 9;
Described power module is used for to described control unit power supply;
Described test interface is used for linking to each other with the test port of equipment under test;
Described control interface is used for the control unit sending controling instruction to described RF switching device;
Described first, second, and third radio frequency interface is respectively applied to connect frequency spectrograph and vector signal generator comprehensive tester.
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| CN2012206983883U CN203180932U (en) | 2012-12-17 | 2012-12-17 | Radio frequency switching device and system |
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| CN2012206983883U CN203180932U (en) | 2012-12-17 | 2012-12-17 | Radio frequency switching device and system |
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| CN104614596A (en) * | 2014-12-31 | 2015-05-13 | 深圳市华信天线技术有限公司 | Antenna testing device |
| CN105227728A (en) * | 2015-08-26 | 2016-01-06 | 努比亚技术有限公司 | Signal-testing apparatus and method |
| CN108802599A (en) * | 2018-05-30 | 2018-11-13 | 湖北商贸学院 | A kind of rf control system and its control method for radio frequency testing |
| CN112557752A (en) * | 2020-12-06 | 2021-03-26 | 苏州大学 | Electromagnetic signal monitoring system and computer storage medium |
-
2012
- 2012-12-17 CN CN2012206983883U patent/CN203180932U/en not_active Expired - Lifetime
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| CN104391267A (en) * | 2014-11-27 | 2015-03-04 | 国家电网公司 | Device and method for testing belt load capacity of electric energy metering equipment |
| CN104614596A (en) * | 2014-12-31 | 2015-05-13 | 深圳市华信天线技术有限公司 | Antenna testing device |
| CN104614596B (en) * | 2014-12-31 | 2017-12-15 | 深圳市华信天线技术有限公司 | Antenna measurement device |
| CN105227728A (en) * | 2015-08-26 | 2016-01-06 | 努比亚技术有限公司 | Signal-testing apparatus and method |
| CN105227728B (en) * | 2015-08-26 | 2018-09-04 | 努比亚技术有限公司 | Signal-testing apparatus and method |
| CN108802599A (en) * | 2018-05-30 | 2018-11-13 | 湖北商贸学院 | A kind of rf control system and its control method for radio frequency testing |
| CN112557752A (en) * | 2020-12-06 | 2021-03-26 | 苏州大学 | Electromagnetic signal monitoring system and computer storage medium |
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