CN202949428U - Communication barrier electromagnetic wave measuring device, measuring element and measuring system - Google Patents
Communication barrier electromagnetic wave measuring device, measuring element and measuring system Download PDFInfo
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- CN202949428U CN202949428U CN 201220590409 CN201220590409U CN202949428U CN 202949428 U CN202949428 U CN 202949428U CN 201220590409 CN201220590409 CN 201220590409 CN 201220590409 U CN201220590409 U CN 201220590409U CN 202949428 U CN202949428 U CN 202949428U
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Abstract
The utility model provides a communication barrier electromagnetic wave measuring device which is capable of correctly measuring effect of electromagnetic wave emitted out by an electronic device on wireless communication quality. The measuring device is provided with a first antenna (102), a second antenna (103), a measuring element (200) and a communication quality measuring device (101). Communication signals based on wireless communication protocol are applied to the first antenna (102). The second antenna (103) conducts receiving and transmitting of signals according to the wireless communication protocol and the first antenna. The measuring element (200) is respectively connected with the first antenna and the second antenna. The communication quality measuring device (101) is connected with the second antenna to conduct measurement of communication quality. The measuring element is provided with a substrate, a first matching wire electrically connected with the first antenna and arranged on the substrate and a second matching wire electrically connected with the second antenna and arranged on the substrate.
Description
Technical field
The utility model relate to communication barrier electromagnetic wave measuring apparatus, communication barrier electromagnetic wave measuring with element and display unit with communication barrier electromagnetic wave measuring system.
Background technology
Display device as the information communication terminals such as computer and television receiver is widely used liquid crystal indicator.In addition, organic EL display (OLED), field emission display device (FED) etc. are also well-known as slim display unit.This display unit is packed the portable terminal device such as mobile phone into and is widely used as the output device towards the user, but portable terminal device possesses radio communication function more, known have from the electromagnetic wave of display unit emission the communication quality of the radio communication of these portable terminal devices is brought impact.
Disclose a kind of EMI determinator in patent documentation 1, to the mensuration side plate of charge charging be connected with resistance with mensuration with the ground connection side plate that is connected charge charging, for in the axisymmetric structure of sensor rotation axle, have near measurement data near the EMI when measurement data and rotating shaft 180 are spent the EMI when spending according to rotating shaft 0, calculate the electric field data calculation element of EMI electric field; And control part is calculated in the measurement at the wave source electric charge of three-dimensional position of using near electric Field Calculation result this EMI to calculate in determinand.
Disclose a kind of noise level measurement device in patent documentation 2, possess: the modulation signal generating unit that generates modulation signal by the control of control part; Send the modulation signal sending part of this modulation signal with the output of regulation; Reception makes from the electric-power wire communication signal of modulation signal sending part and has passed through the modulation signal acceptance division of electric-power wire communication signal of the signal overlap of coupling part; With send the mensuration signal of regulation output based on the indication of personal computer, and detect the control part of the state of the noise that has passed through coupling part at this moment from the state that the modulation signal demodulation section is obtained reception signal.
Patent documentation 1: TOHKEMY 2003-227856 communique
Patent documentation 2: TOHKEMY 2008-236700 communique
Fig. 8 represents for the example of mensuration from the electromagnetic electromagnetic wave measuring apparatus 600 of the display surface output of display unit.As shown in the drawing, the electromagnetic wave measuring apparatus 600 of display unit possesses: the objective table 603 that moves and can rotate in the θ direction along this 3 direction of XYZ direction, be installed on objective table 603 and the measuring element 604 that moves along the display surface as the display unit 605 of determination object, flow through and receive coaxial cable 602, the connecting coaxial cable 602 of the electric current that electromagnetic waves produce and detect the frequency of the electric current that flows through coaxial cable 602 and the frequency spectrum analyser (Spectrum Analyzer) 601 of electric power (amplitude) because of measuring element 604.Thus, the result of mensuration can be by the position (X, Y, Z, θ) measured with demonstrations such as chromatic graphs and the size of electric power.
But, for example in the development﹠ testing of portable mobile terminal, in the situation that will use the electromagnetic occurrence cause of this electromagnetic wave measuring apparatus investigation communication barrier, the frequency that is used for communication is measured the position that the position of high electric power is not limited to communication quality is brought maximum effect more.This be considered to because, if the method for communication is existing such analog communication, the electromagnetic size of this emission and the deterioration of close-talking sensitivity have dependency relation, but consider in digital communication in recent years because carrying out the digital processing of error correction equal altitudes, so the deterioration of electromagnetic size and communication quality may not have dependency relation.That is, electromagnetic size not only, the factor of the complexity such as occurrence frequency is also brought impact to the deterioration of communication quality, and therefore, only the mensuration of electromagnetic size is difficult to the position of pinpointing the problems.
The utility model content
The utility model In view of the foregoing, its purpose is, provides to measure electromagnetic communication barrier electromagnetic wave measuring apparatus, communication barrier electromagnetic wave measuring that radio communication is brought impact with element and display unit communication barrier electromagnetic wave measuring apparatus.
In the application, in disclosed scheme, the summary of the representational structure of brief description is as follows.
(1) a kind of communication barrier electromagnetic wave measuring apparatus is characterized in that possessing: the first antenna, and it is applied in the signal of communication based on wireless communication protocol; The second antenna, it is received and dispatched according to above-mentioned wireless communication protocol and the first antenna; Measuring element, it connects respectively the first antenna and the second antenna; With the communication quality determinator, it is connected with above-mentioned the second antenna, communicates the mensuration of quality, and the said determination element has: substrate; The first distribution, it is electrically connected to above-mentioned the first antenna, is the distribution on aforesaid substrate; With the second distribution, it is electrically connected to above-mentioned the second antenna, is the distribution on aforesaid substrate.
(2) communication barrier electromagnetic wave measuring apparatus as described in (1) is characterized in that also possessing: the first shielding part, its across insulator be disposed at above-mentioned the first antenna around, and have conductivity; With secondary shielding section, its across insulator be disposed at above-mentioned the second antenna around, and has conductivity, aforesaid substrate also has above-mentioned the first distribution of Area Ratio and the large conductive part of above-mentioned the second distribution at other substrate layer with above-mentioned the first distribution and above-mentioned the second distribution insulation, and above-mentioned the first shielding part and above-mentioned secondary shielding section all are electrically connected to above-mentioned conductive part.
(3) communication barrier electromagnetic wave measuring apparatus as described in (2), is characterized in that, aforesaid substrate has: the first substrate section of writing board shape, second substrate section, itself and above-mentioned first substrate section be separate configuration relatively, is writing board shape, with connection substrate section, it connects the end of above-mentioned first substrate section and the end of above-mentioned second substrate section, and take with the relative face of above-mentioned first substrate section and above-mentioned second substrate section as a medial surface, with above-mentioned first substrate section and above-mentioned second substrate section separately the face of not relative side be the mode of a lateral surface, connect the end of above-mentioned first substrate section and the end of above-mentioned second substrate section, above-mentioned the first antenna is connected with the end opposite of an end of the above-mentioned connection substrate of being connected to of above-mentioned first substrate section section, above-mentioned the second antenna is connected with the end opposite of an end of the above-mentioned connection substrate of being connected to of above-mentioned second substrate section section, above-mentioned the first distribution and above-mentioned the second distribution configure at described lateral surface, above-mentioned conductive part is disposed at above-mentioned medial surface.
(4) as the described communication barrier electromagnetic wave measuring apparatus of any one in (1)～(3), it is characterized in that, above-mentioned the first distribution contacts configuration with above-mentioned the second distribution on substrate.
(5) as the described communication barrier electromagnetic wave measuring apparatus of any one in (1)～(3), it is characterized in that above-mentioned the first distribution and above-mentioned the second distribution separate configuration on substrate.
(6) as the described communication barrier electromagnetic wave measuring apparatus of any one in (1)～(5), it is characterized in that, the communication quality of being measured by above-mentioned communication quality determinator is error rate.
(7) a kind of communication barrier electromagnetic wave measuring element, it possesses: the first substrate section of writing board shape; Second substrate section, itself and above-mentioned first substrate section be separate configuration relatively, is writing board shape; Connection substrate section, it connects the end limit of above-mentioned first substrate section and the end limit of above-mentioned second substrate section, and take with the relative face of above-mentioned first substrate section and above-mentioned second substrate section as a medial surface, with above-mentioned first substrate section and above-mentioned second substrate section separately the face of not relative side become the mode of a lateral surface, connect the end of above-mentioned first substrate section and the end of above-mentioned second substrate section; The first distribution and the second distribution as the distribution of above-mentioned lateral surface; And conductive part, it is disposed at above-mentioned medial surface, and above-mentioned the first distribution of Area Ratio and above-mentioned the second distribution are large.
(8) a kind of display unit is with communication barrier electromagnetic wave measuring system, and it possesses: the described communication barrier electromagnetic wave measuring apparatus of any one in (1)～(6); Display unit; And objective table, it is used for making the predetermined coordinate of measuring element on the display surface of above-mentioned display unit of above-mentioned communication barrier electromagnetic wave measuring apparatus, from display surface to predetermined distance moving.
Description of drawings
Fig. 1 is the figure that summary represents the communication barrier electromagnetic wave measuring apparatus of the utility model the first execution mode.
Fig. 2 is the figure on surface of the measuring element of detailed presentation graphs 1.
Fig. 3 is the figure at the back side of the measuring element of detailed presentation graphs 1.
Fig. 4 means the flow chart of the assay method of the communication barrier electromagnetic wave measuring apparatus that has used the utility model the first execution mode.
Fig. 5 means the figure of the measuring element of the utility model the second execution mode.
Fig. 6 means the figure of the measuring element of the utility model the 3rd execution mode.
Fig. 7 means the figure of the measuring element of the utility model the 4th execution mode.
Fig. 8 means the figure be used to an example of measuring electromagnetic electromagnetic wave measuring apparatus.
Symbol description
100 communication barrier electromagnetic wave measuring apparatus, 101 communication quality determinators, 102 first coaxial cables, 103 second coaxial cables, 105 display unit, 106 portable terminal devices, 107 objective tables, 200 measuring elements, 201 first distributions, 202 second distributions, 204 films, 205 substrates, 210 measuring elements, 211 first distributions, 212 second distributions, 215 substrates, 220 measuring elements, 221 first distributions, 222 second distributions, 224 films, 225 first substrate sections, 226 second substrate sections, 227 connection substrate sections, 230 measuring elements, 231 first distributions, 232 second distributions, 234 films, 235 first substrate sections, 236 second substrate sections, 237 connection substrate sections, 600 electromagnetic wave measuring apparatus, 601 frequency spectrum analysers, 602 coaxial cables, 603 objective tables, 604 measuring elements, 605 display unit.
Embodiment
Below, illustrate referring to the drawings each execution mode of the utility model first～4th.Wherein, to element annotation prosign identical or that be equal to, the repetitive description thereof will be omitted in the accompanying drawings.
［ the first execution mode ］
Fig. 1 summary represents the communication barrier electromagnetic wave measuring apparatus 100 of the utility model the first execution mode.As shown in the drawing, communication barrier electromagnetic wave measuring apparatus 100 possesses: detect the electromagnetic measuring element 200 from sending as the display unit 105 of determination object; Measuring element 200 is installed and is moved along this 3 direction of XYZ direction, and can be along the objective table 107 of θ direction rotation; The portable terminal device 106 that can communicate according to wireless communication protocol; As being connected between portable terminal device 106 and measuring element 200, apply the holding wire based on the signal of communication of wireless communication protocol, namely with the screen that prevents electromagnetic intrusion cover holding wire around the first coaxial cable (the first antenna) 102; The communication quality determinator 101 of mensuration communication error rate etc.; As being connected between communication quality determinator 101 and measuring element 200, be applied in the signal of communication that the first coaxial cable 102 is applied, and also be applied in the holding wire of the electromagnetic wave noise that measuring element 200 detects, namely with the screen that prevents electromagnetic intrusion cover holding wire around the second coaxial cable (the second antenna) 103.And, utilize communication barrier electromagnetic wave measuring apparatus 100 and as the display unit shown in display unit 105 pie graph 1 integral body of determination object with communication barrier electromagnetic wave measuring system.
Fig. 2 is the surface of the measuring element 200 of presentation graphs 1 at length.As shown in the drawing, measuring element 200 have substrate 205, via connecting terminals be connected to the first coaxial cable 102 and by the microstrip line (Micro Strip Line) that forms of printing on substrate 205 namely the first distribution 201, be connected to the second coaxial cable 103 via connecting terminals and be the second distribution 202 by print the microstrip line that forms on substrate 205, the first distribution 201 is connected with the second distribution 202, and is integrally formed in the mode that becomes a distribution.
The back side of the measuring element 200 of the detailed presentation graphs 1 of Fig. 3.As shown in the drawing, whole face is formed with the film 204 of conductor overleaf, and electromagnetic wave not the first distribution 201 from rear side to face side and the second distribution 202 applies.That is, for shielding, be formed with Area Ratio the first distribution 201 and the large conductive part of the second distribution 202 at other substrate layer with the first distribution 201 and the second distribution 202 insulation.In addition, not shown in figure, the film of this conductor the first coaxial cable 102 be connected in coaxial cable 103 with cover holding wire around screen be connected.
Secondly, use Fig. 4 that the assay method that has used this communication barrier electromagnetic wave measuring apparatus 100 is described.At first, in step S11, portable terminal device 106 and communication quality determinator 101 uses via the wireless communication protocol on the first coaxial cable 102, the first distribution 201, the second distribution 202 and the second coaxial cable 103 wired and communicates.Wireless communication protocol can be wireless communication protocol arbitrarily as used herein, can be also communication arbitrarily.for example, can be AM(Amplitude Modulation: amplitude modulation), phase modulation) frequency modulation) and PM(Phase Modulation FM(Frequency Modulation:: arbitrary analogue modulation system such as, can be also CDMA(Code Division Multiple Access: code division multiple access), FDMA(Frequency Division Multiple Access: frequency division multiple access), time division multiple access) etc. or TDD(Time Division Duplex TDMA(Time Division Multiple Access:: time division duplex), Frequency Division Duplexing (FDD)) FDD(Frequency Division Duplex: arbitrary demultiplexing mode such as.
Secondly, in step S12, the power supply of access display unit 105 under the state of the image that has shown regulation on picture, uses objective table 107 to make measuring element 200 mobile to the position (X, Y, Z, θ) in the assigned position more than a predetermined place.Then, in step S13, obtain and the error rate of communicating by letter of record communication quality determination device 101 and portable terminal device 106.Be made as error rate at this, but also can mean the index such as time of delay, sound quality of communication quality.
Secondly, in step S14, judge whether all mensuration that locates is finished.At this, in the situation that be judged to be negatively, return to step S12, move to next and locate, the obtaining of the error rate in repeating step S12 and 13.On the other hand, in the situation that be judged to be sure end mensuration.
In the present embodiment, imagination be that a plurality of positions of the specified altitude on the picture of display unit 105 are measured, but can be also the position of the dorsal part of display unit 105, be not limited to display unit, also can measure the impact on traffic rate (Rate) that the electromagnetic wave of other electronic equipment periphery causes.
As described above, in the present embodiment, estimate electromagnetic wave to the impact of radio communication by communication quality, therefore can estimate the electromagnetic impact that can not estimate in the measurement of electromagnetic wave grade.In addition, owing to can correctly measuring the impact on the radio communication quality of electromagnetic wave that electronic equipment, particularly display unit send, therefore, by eliminating the reason on the impact of radio communication, can improve the quality of the radio communication function of packing into together with this electronic equipment.
［ the second execution mode ］
The second execution mode of the present utility model is described.The communication barrier electromagnetic wave measuring apparatus of the second execution mode has on measuring element 210 this point differently from the communication barrier electromagnetic wave measuring apparatus of the first execution mode, and other side is identical, and therefore the repetitive description thereof will be omitted.Fig. 5 represents the figure of the measuring element 210 of the second execution mode.
As shown in the drawing, measuring element 210 has substrate 215; Be connected with the first coaxial cable 102 via terminal and by being printed in i.e. the first distribution 211 of microstrip line that substrate 215 forms; Be connected that terminal is connected with the second coaxial cable 103 and be the second distribution 212 by the microstrip line that printed base plate 215 forms.At this, different from the first execution mode, the first distribution 211 and the second distribution 212 are not connected.These distributions mutually do not join and are parallel, communicate the transmitting-receiving of signal by electromagnetic wave each other.Therefore, by being set as this distribution shape, the electromagnetic wave of signal of communication is synthetic with the electromagnetic wave that sends from determination object, therefore can be with the impact of higher sensitivity detection on radio communication.
In addition, in the present embodiment, the first distribution 211 and the second distribution 212 are parallel to each other, but also can be not parallel, can be also the distributions of arbitrary shape.
As mentioned above, in the present embodiment, estimate electromagnetic wave to the impact of radio communication by communication quality, therefore, can estimate the electromagnetic impact that can not estimate in the measurement of electromagnetic wave grade.In addition, owing to can more correctly measuring the impact on the radio communication quality of electromagnetic wave that electronic equipment, particularly display unit send, therefore, by eliminating the reason on the impact of radio communication, can improve the quality of the radio communication function of packing into together with this electronic equipment.
［ the 3rd execution mode ］
The 3rd execution mode of the present utility model is described.The communication barrier electromagnetic wave measuring apparatus of the 3rd execution mode has on measuring element 220 this point differently from the communication barrier electromagnetic wave measuring apparatus of the first execution mode, and other side is identical, so the repetitive description thereof will be omitted.Fig. 6 means the figure of the measuring element 220 of the 3rd execution mode.
As shown in the drawing, measuring element 220 has the substrate of U font; Be connected with the first coaxial cable 102 via terminal and be the first distribution 221 by the microstrip line that printing on substrate forms at the lateral surface of the substrate of U font; Be connected with the second coaxial cable 103 via terminal in the outside of substrate and by being printed in i.e. the second distribution 222 of microstrip line that substrate forms; Film 224 with the conductor of the face of the opposition side that is formed at the face that disposes the first distribution 221 and the second distribution 222.At this, the first distribution 221 be connected distribution 222 and connect, and integrally formed in the mode that becomes a distribution.
The substrate of the U font of this measuring element 220 has the first substrate section 225 of writing board shape; With the second substrate section 226 of the writing board shape of separate configuration relatively of first substrate section 225; With the connection substrate section 227 of being connected with second substrate section take the relative face of being connected with second substrate section with first substrate section 225 as a medial surface and take first substrate section 225 that the face of not relative side separately connects as the mode of a lateral surface is connected the end of first substrate section 225 with second substrate section end, integrally formed by first substrate section 225, second substrate section 226 and connection substrate section 227, form the shape of U font.
As mentioned above, in the present embodiment, owing to estimating electromagnetic wave by communication quality on the impact of radio communication, so can estimate the electromagnetic impact that can not estimate in the measurement of electromagnetic wave grade.In addition, owing to can correctly measuring the impact on the radio communication quality of electromagnetic wave that electronic equipment, particularly display unit send, therefore, by eliminating the reason on the impact of radio communication, can improve the quality of the radio communication function of packing into together with this electronic equipment.
［ the 4th execution mode ］
The 4th execution mode of the present utility model is described.The communication barrier electromagnetic wave measuring apparatus of the 4th execution mode have on measuring element 230 this point different from the communication barrier electromagnetic wave measuring apparatus of the first execution mode, other side is identical, so the repetitive description thereof will be omitted, Fig. 7 means the figure of the measuring element 230 of the 4th execution mode.
As shown in the drawing, measuring element 230 has the substrate of U font; Be connected with the first coaxial cable 102 via terminal in the outside of substrate and by being printed in i.e. the first distribution 231 of microstrip line that substrate forms; Be connected with the second coaxial cable 103 via terminal in the outside of substrate and by being printed in i.e. the second distribution 232 of microstrip line that substrate forms; Film 234 with the conductor of the face of the opposition side that is formed at the face that disposes the first distribution 231 and the second distribution 232 distributions.At this, different from the 3rd execution mode, the first distribution 231 be connected distribution 232 and do not connect.These distributions mutually do not join and are parallel, communicate the transmitting-receiving of signal by electromagnetic wave each other.Therefore, by being made as this distribution shape, the electromagnetic wave of signal of communication is synthetic with the electromagnetic wave that sends from determination object, therefore can be with the impact of higher sensitivity detection on radio communication.
The substrate of the U font of this measuring element 230 is identical with the 3rd execution mode, has the first substrate section 235 of writing board shape; With the second substrate section 236 of the writing board shape of separate configuration relatively of first substrate section 235; With the connection substrate section 237 of being connected separately take the relative face of being connected with second substrate section with first substrate section 235 as a medial surface and with first substrate section 235 and second substrate section that faces of not relative side is connected as the mode of a lateral surface is connected the end of first substrate section 235 with second substrate section end, integrally formed by first substrate section 235, second substrate section 236 and connection substrate section 237, form the shape of U font.
In addition, in present embodiment, the first distribution 231 and the second distribution 232 are parallel to each other, but also can be not parallel, can be also the distributions of arbitrary shape.
As mentioned above, in the present embodiment, estimate electromagnetic wave to the impact of radio communication by communication quality, therefore, can estimate the electromagnetic impact that can not estimate in the measurement of electromagnetic wave grade.In addition, owing to can more correctly measuring the impact on the radio communication quality of electromagnetic wave that electronic equipment, particularly display unit send, therefore, by eliminating the reason on the impact of radio communication, can improve the quality of the radio communication function of together packing into this electronic equipment.
Claims (8)
1. communication barrier electromagnetic wave measuring apparatus is characterized in that possessing:
The first antenna, it is applied in the signal of communication based on wireless communication protocol;
The second antenna, it carries out the transmitting-receiving of signal according to described wireless communication protocol and the first antenna;
Measuring element, it connects respectively the first antenna and the second antenna; With
The communication quality determinator, it is connected with described the second antenna, communicates the mensuration of quality,
Described measuring element has:
Substrate;
The first distribution, it is electrically connected to described the first antenna, is the distribution on described substrate; With
The second distribution, it is electrically connected to described the second antenna, is the distribution on described substrate.
2. communication barrier electromagnetic wave measuring apparatus as claimed in claim 1 is characterized in that also possessing:
The first shielding part, its across insulator be disposed at described the first antenna around, and have conductivity; With
Secondary shielding section, its across insulator be disposed at described the second antenna around, and have conductivity,
Described substrate also has described the first distribution of Area Ratio and the large conductive part of described the second distribution,
Described the first shielding part and described secondary shielding section all are electrically connected to described conductive part.
3. communication barrier electromagnetic wave measuring apparatus as claimed in claim 2, is characterized in that,
Described substrate has:
The first substrate section of writing board shape;
Second substrate section, itself and described first substrate section be separate configuration relatively, is writing board shape; With
Connection substrate section, it connects the end of described first substrate section and the end of described second substrate section, and take the face relative with described second substrate section with described first substrate section as a medial surface, with described first substrate section and described second substrate section separately the face of not relative side be the mode of a lateral surface, connect the end of described first substrate section and the end of described second substrate section
Described the first antenna is connected with the end opposite of an end of the described connection substrate of being connected to of described first substrate section section,
Described the second antenna is connected with the end opposite of an end of the described connection substrate of being connected to of described second substrate section section,
Described the first distribution and described the second distribution configure at described lateral surface,
Described conductive part is disposed at described medial surface.
4. communication barrier electromagnetic wave measuring apparatus as described in any one in claim 1～3 is characterized in that:
Described the first distribution contacts configuration with described the second distribution on substrate.
5. communication barrier electromagnetic wave measuring apparatus as described in any one in claim 1～3 is characterized in that:
Described the first distribution and described the second distribution separate configuration on substrate.
6. communication barrier electromagnetic wave measuring apparatus as described in any one in claim 1～3, is characterized in that,
The communication quality of being measured by described communication quality determinator is error rate.
7. communication barrier electromagnetic wave measuring element is characterized in that possessing:
The first substrate section of writing board shape;
Second substrate section, itself and described first substrate section be separate configuration relatively, is writing board shape;
Connection substrate section, it connects the end limit of described first substrate section and the end limit of described second substrate section, and take with the relative face of described first substrate section and described second substrate section as a medial surface, with described first substrate section and described second substrate section separately the face of not relative side be the mode of a lateral surface, connect the end of described first substrate section and the end of described second substrate section;
The first distribution and the second distribution as the distribution of described lateral surface; With
Conductive part, it is disposed at described medial surface, and described the first distribution of Area Ratio and described the second distribution are large.
8. a display unit with communication barrier electromagnetic wave measuring system, is characterized in that possessing:
The described communication barrier electromagnetic wave measuring apparatus of any one in claim 1～3;
Display unit; With
Objective table, it is used for making the predetermined coordinate of measuring element on the display surface of described display unit of described communication barrier electromagnetic wave measuring apparatus, from display surface to predetermined distance moving.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-247253 | 2011-11-11 | ||
| JP2011247253A JP2013104714A (en) | 2011-11-11 | 2011-11-11 | Communication interference electromagnetic wave measurement device, communication interference electromagnetic wave measurement element, and communication interference electromagnetic wave measurement device for display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949428U true CN202949428U (en) | 2013-05-22 |
Family
ID=48425106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220590409 Expired - Lifetime CN202949428U (en) | 2011-11-11 | 2012-11-09 | Communication barrier electromagnetic wave measuring device, measuring element and measuring system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013104714A (en) |
| CN (1) | CN202949428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505513A (en) * | 2016-06-14 | 2017-12-22 | 美光科技公司 | Device and method for test device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388365B (en) * | 2015-09-25 | 2019-01-25 | 刘万洪 | A kind of complicated electromagnetic signal environment construction method in communication equipment adaptive testing |
-
2011
- 2011-11-11 JP JP2011247253A patent/JP2013104714A/en active Pending
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2012
- 2012-11-09 CN CN 201220590409 patent/CN202949428U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505513A (en) * | 2016-06-14 | 2017-12-22 | 美光科技公司 | Device and method for test device |
| US10718805B2 (en) | 2016-06-14 | 2020-07-21 | Micron Technology, Inc. | Apparatus and methods for testing devices |
| US10989748B2 (en) | 2016-06-14 | 2021-04-27 | Micron Technology, Inc. | Apparatus and methods for testing devices |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013104714A (en) | 2013-05-30 |
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Granted publication date: 20130522 |