CN102944797A - Method for measuring coupling degree of antennas - Google Patents
Method for measuring coupling degree of antennas Download PDFInfo
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- CN102944797A CN102944797A CN2012104837675A CN201210483767A CN102944797A CN 102944797 A CN102944797 A CN 102944797A CN 2012104837675 A CN2012104837675 A CN 2012104837675A CN 201210483767 A CN201210483767 A CN 201210483767A CN 102944797 A CN102944797 A CN 102944797A
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Abstract
The invention relates to a method for measuring the coupling degree of antennas. According to the method, a signal generator, a measuring receiver and a main control computer (MCC) are connected through a local area network (LAN), measure and control software is authored on the MCC which performs instruction control, data analysis and processing and result display, and the main functions of the network are instruction transmission and data transfer. During the measuring process, the MCC sends an instruction through the network to control the receiver to perform frequency and power tuning and reads the test data of the measuring receiver, wherein the test data includes frequency and power data of a receiving signal, then the MCC synthesizes the emit data and the receive data, and calculates the coupling degree for display. The method can be used for accurate measurement of the coupling degree between antennas with a large interval.
Description
Technical field
The present invention relates to the measurement of antenna coupling in the electromagnetic compatibility test field, especially measure the degree of coupling between the antenna that is installed in apart from each other on the super large platforms such as naval vessel, transporter.
Background technology
The measurement of antenna coupling is the important step of multiaerial system (platform) EMC Design and assessment.For small-sized multiaerial system, the distance between the antenna port is shorter, and directly the Adoption Network analyser is measured the degree of coupling between antenna.But, for large-scale multiaerial system, such as naval vessel, aircraft etc., distant between the antenna port, the cable that the Adoption Network analyser uses when measuring antenna coupling is longer, and when test frequency was higher, cable loss was larger, bring larger error for degree of coupling test result, can't finish measurement even.In addition, setting up also very inconvenience of test cable on the macrotype platform between the equipment.
Summary of the invention
The objective of the invention is to propose a kind of measuring method of measuring remote antenna coupling.
Technical scheme of the present invention is: utilize LAN (Local Area Network) that signal generator, measuring receiver and main control computer are coupled together, write TT﹠C software at main control computer, carry out instruction control, data analysis processing and result by it and show, the Main Function of network is to carry out instruction transmission and data transmission.Concrete structure as shown in Figure 1, sending instruction by main control computer by network makes signal generator produce test signal, this signal be fed into the port of antenna 1 to be measured and by aerial radiation in the space, measuring receiver is connected to the signal that the port measurement of antenna 2 to be measured receives.In the measuring process, main control computer sends instruction control test receiver by network and carries out frequency and intensity tuning, and read measuring receiver in test data, comprised the frequency and the power data that receive signal in this test data.The comprehensive transmitting data of main control computer and receive data calculate the degree of coupling and are shown.
Under the implementing procedure of measuring method:
1) antenna port of antenna 1 to be measured and antenna to be measured 2 is connected to respectively the output port of signal generator and the input port of measuring receiver by the test cable of suitable length, two antennas to be measured with signal generator be connected with measuring receiver the connection corresponding relation when measuring specific environment and measure purpose and decide, annexation is interchangeable generally speaking.
2) connect with response mode between main control computer, signal generator and the measuring receiver and verify communication quality.Set up and the requirement of communication quality coincidence measurement if connect, main control computer provides corresponding the sign, can down arrange, otherwise main control computer provides and do not connect or the poor sign of communication quality, and prompting operation person takes measures to set up good connection.Authentication also can carry out with the certain hour interval in measuring process, and can provide prompting according to the result in good time.
3) arrange in the enterprising trip signal generator parameter of main control computer, the parameter that needs to arrange comprises, the initial frequency of measurement, and frequency interval, output power and output time interval etc., if the operator does not arrange these parameters, these parameters can be got default value.
4) main control computer is configured according to the running parameter that the parameter of signal generator arranges measuring receiver.After the each change of signal generator arranged, main control computer all reset measuring receiver, can correctly receive signal.
5) main control computer sends to the parameter that sets signal generator and measuring receiver and starts by instruction and measures.
6) main control computer reads frequency and the power of the signal that measuring receiver receives, with its transmit signal power contrast with respective frequencies, calculate the degree of coupling of antenna, and show with curve mode, measurement data can be kept on the main control computer storage medium or on the external USB storer.
Beneficial effect of the present invention is:
Can accurately measure spacing antenna coupling degree far away.
Description of drawings
Fig. 1 is the formation schematic diagram of system,
Fig. 2 is a kind of use object schematic diagram,
Fig. 3 is the embodiment schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.
Fig. 2 is the schematic diagram of tested object, namely will measure on certain type naval vessel the degree of coupling between two antennas.Air line distance between two antennas to be measured is 38.79 meters, and the centre has more building to block.Connection diagram when Fig. 3 is implementation.Specific implementation process is as follows:
(1) selects carrier-borne antenna 1 as emitting antenna, apart from its nearer A place, position placement signal generator, the signal generator output port is connected by the standard testing cable with the feed port of antenna 1;
(2) select carrier-borne antenna 2 as receiving antenna, apart from its nearer B place, position placement measuring receiver, the input port of measuring receiver is connected by the standard testing cable with the feed port of antenna 2;
(3) use according to reality and the placement location of conveniently choosing main control computer of operation, and connect network between main control computer, signal generator and the measuring receiver;
(4) in the test frequency range, choose according to demand several test frequencies (f
0, f
2..., f
N-1, f
N), the degree of coupling of each frequency is tested.With frequency f
kDegree of coupling test between place's antenna is example:
Main control computer arranges the running parameter of measuring receiver by program control command, comprise that test center's frequency is f
k, test bandwidth span, RBW/VBW, and scan with maximum Holdover mode;
The signal generator shutdown, after receiver peak value to be measured was stable, main control computer read frequency f
kThe power P at place
K1(dBm);
Main control computer is f by the signal transmission frequency of program control command signalization generator
k, emissive power is P
Out(dBm);
The signal generator start, after receiver peak value to be measured was stable, main control computer read frequency f
kThe power P at place
K2(dBm);
Can obtain frequency f by following formula (1)
kThe antenna coupling at place:
This calculating is carried out by the data analysis and process module on the main control computer.When P occurring
K2＞P
K1The time, illustrating that then this test frequency is subject to environmental interference, the test data of this frequency is unavailable.Can carry out the degree of coupling that interpolation is asked for this frequency according to the degree of coupling test value of front and back frequency.
(5) obtain the mode by interpolation after degree of coupling data of all test frequencies and obtain to test on the frequency range degree of coupling curve between two antennas.
Claims (2)
1. antenna coupling measuring method, utilize LAN (Local Area Network) with signal generator, measuring receiver and main control computer couple together, write TT﹠C software at main control computer, carry out instruction control by it, data analysis processing and result show, it is characterized in that, sending instruction by main control computer by network makes signal generator produce test signal, this signal be fed into the port of antenna 1 to be measured and by aerial radiation in the space, measuring receiver is connected to the signal that the port measurement of antenna 2 to be measured receives, in the measuring process, main control computer sends instruction control test receiver by network and carries out frequency and intensity tuning, and read measuring receiver in test data, the frequency and the power data that receive signal have been comprised in this test data, the comprehensive transmitting data of main control computer and receive data, calculate the degree of coupling and shown, detailed process is:
1) antenna port of antenna 1 to be measured and antenna to be measured 2 is connected to respectively the output port of signal generator and the input port of measuring receiver by test cable, two antennas to be measured with signal generator be connected with measuring receiver the connection corresponding relation when measuring specific environment and measure purpose and decide, annexation is interchangeable generally speaking;
2) connect with response mode between main control computer, signal generator and the measuring receiver and verify communication quality, set up and the requirement of communication quality coincidence measurement if connect, main control computer provides corresponding the sign, can down arrange, otherwise, main control computer provides and does not connect or the poor sign of communication quality, and prompting operation person takes measures to set up good connection, authentication also can carry out with the certain hour interval in measuring process, and can provide prompting according to the result in good time;
3) arrange in the enterprising trip signal generator parameter of main control computer, the parameter that needs to arrange comprises, the initial frequency of measurement, and frequency interval, output power and output time interval etc., if the operator does not arrange these parameters, these parameters can be got default value;
4) main control computer is configured according to the running parameter that the parameter of signal generator arranges measuring receiver, signal generator is each change arrange after, main control computer all resets measuring receiver, can correctly receive signal;
5) main control computer sends to the parameter that sets signal generator and measuring receiver and starts by instruction and measures;
6) main control computer reads frequency and the power of the signal that measuring receiver receives, with its transmit signal power contrast with respective frequencies, calculate the degree of coupling of antenna, and show with curve mode, measurement data can be kept on the main control computer storage medium or on the external USB storer.
2. a kind of radio-frequency front-end protected location according to claim 1 is characterized in that, calculates the degree of coupling of antenna, and detailed process is:
Choose several the test frequencies (
f 0 , f 2 ..., f N-1 , f N ), the degree of coupling of each frequency is tested, with frequency
f k Degree of coupling test between place's antenna is example:
Main control computer arranges the running parameter of measuring receiver by program control command, comprise that test center's frequency is
f k , the test bandwidth
Span, RBW/VBW, and scan with maximum Holdover mode;
The signal generator shutdown, after receiver peak value to be measured was stable, main control computer read frequency
f k The power at place
P K1 (dBm);
Main control computer by the signal transmission frequency of program control command signalization generator is
f k , emissive power is
P Out (dBm);
The signal generator start, after receiver peak value to be measured was stable, main control computer read frequency
f k The power at place
P K2 (dBm);
Can obtain frequency by following formula (1)
f k The antenna coupling at place:
This calculates by the data analysis and process module on the main control computer and carries out, when P occurring
K2＞P
K1The time, illustrating that then this test frequency is subject to environmental interference, the test data of this frequency is unavailable, can carry out the degree of coupling that interpolation is asked for this frequency according to the degree of coupling test value of front and back frequency.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104837675A CN102944797A (en) | 2012-11-23 | 2012-11-23 | Method for measuring coupling degree of antennas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104837675A CN102944797A (en) | 2012-11-23 | 2012-11-23 | Method for measuring coupling degree of antennas |
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| CN102944797A true CN102944797A (en) | 2013-02-27 |
Family
ID=47727758
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425060A (en) * | 2015-11-04 | 2016-03-23 | 上海与德通讯技术有限公司 | Interference detection method and system of antenna coupling |
| CN106646053A (en) * | 2016-12-28 | 2017-05-10 | 深圳市磊科实业有限公司 | Antenna testing device and method for batch production WiFi/Bluetooth products |
| CN109425789A (en) * | 2017-08-24 | 2019-03-05 | 中航贵州飞机有限责任公司 | A kind of aircraft airborne antenna measurement device |
| CN111654341A (en) * | 2020-05-29 | 2020-09-11 | 北京小米移动软件有限公司 | Method, device, equipment and storage medium for testing wireless communication equipment |
| CN113109634A (en) * | 2021-05-07 | 2021-07-13 | 北京和德宇航技术有限公司 | Antenna test method, device, terminal equipment, antenna test system and medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201422167Y (en) * | 2009-05-27 | 2010-03-10 | 北京威讯紫晶科技有限公司 | Universal development and experiment platform of wireless digital communication system |
| CN102045754A (en) * | 2009-10-22 | 2011-05-04 | 华为技术有限公司 | Transmitter, base station equipment and method for aligning transmitter signals |
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2012
- 2012-11-23 CN CN2012104837675A patent/CN102944797A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201422167Y (en) * | 2009-05-27 | 2010-03-10 | 北京威讯紫晶科技有限公司 | Universal development and experiment platform of wireless digital communication system |
| CN102045754A (en) * | 2009-10-22 | 2011-05-04 | 华为技术有限公司 | Transmitter, base station equipment and method for aligning transmitter signals |
Non-Patent Citations (1)
| Title |
|---|
| 谢拥军等: "《Ansoft HFSS基础及应用》", 31 August 2007 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425060A (en) * | 2015-11-04 | 2016-03-23 | 上海与德通讯技术有限公司 | Interference detection method and system of antenna coupling |
| CN105425060B (en) * | 2015-11-04 | 2018-09-04 | 上海与德通讯技术有限公司 | A kind of interference detection method and detecting system of antenna coupling |
| CN106646053A (en) * | 2016-12-28 | 2017-05-10 | 深圳市磊科实业有限公司 | Antenna testing device and method for batch production WiFi/Bluetooth products |
| CN109425789A (en) * | 2017-08-24 | 2019-03-05 | 中航贵州飞机有限责任公司 | A kind of aircraft airborne antenna measurement device |
| CN111654341A (en) * | 2020-05-29 | 2020-09-11 | 北京小米移动软件有限公司 | Method, device, equipment and storage medium for testing wireless communication equipment |
| CN113109634A (en) * | 2021-05-07 | 2021-07-13 | 北京和德宇航技术有限公司 | Antenna test method, device, terminal equipment, antenna test system and medium |
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Application publication date: 20130227 |