CN104734789A - Measuring method for multi-port radio frequency element - Google Patents
Measuring method for multi-port radio frequency element Download PDFInfo
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- CN104734789A CN104734789A CN201310702841.2A CN201310702841A CN104734789A CN 104734789 A CN104734789 A CN 104734789A CN 201310702841 A CN201310702841 A CN 201310702841A CN 104734789 A CN104734789 A CN 104734789A
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Abstract
The invention discloses a measuring method for a multi-port radio frequency element and is used for calibration of a multi-port switch box of a multi-port radio frequency element measuring system. High isolation degree of the interior of measuring ports of a network analyzer and high isolation degree of the interior of two measuring ports of the multi-port switch box are mainly utilized, so that two parameters, namely, EXF and EXR, can be ignored, calibration parameters of the ports of the multi-port switch box can be reused, and therefore calibration times of the double ports of the multi-port switch box can be greatly reduced.
Description
Technical field
The present invention is the method for measurement about a kind of multiport radio-frequency (RF) component, is particularly improved for the multiport switch box bearing calibration in multiport radio-frequency (RF) component measurement system, provides a kind of dual-port number of corrections method that can reduce multiport switch box.
Background technology
Radio-frequency (RF) component (as: base station antenna), before dispatching from the factory, must be carried out the measurement (as: reflection coefficient S11 and the isoparametric measurement of penetrating coefficient S21) of performance, can play performance in use, to reach best effective utilization.
As shown in Figure 1, be the measurement system of a multiport radio-frequency (RF) component 10, this measurement system at least includes a network analyzer 20 and multiport switch box 30; Wherein, the port number of multiport radio-frequency (RF) component 10 is n, and the port number of multiport switch box 30 is m.
As shown in Figure 2, be the dual-port correction parameter figure of a complete multiport radio-frequency (RF) component 10; Before measuring the parameters such as the reflection coefficient S11 of multiport radio-frequency (RF) component 10 and penetrating coefficient S21, first must carry out dual-port correction to multiport switch box 30, to obtain 12 correction parameters such as EDF, ESF, ERF, EDR, ESR, ERR, ELF, ELR, ETF, ETR, EXF, EXR; Wherein, S11A, S22A, S21A, the S12A of Parameter Map shown in Fig. 2 are the measuring value of multiport radio-frequency (RF) component 10, and it carries out computing via 12 correction parameters such as network analyzer 20 inner measuring value S11M, S22M, S21M, S12M and EDF, ESF, ERF, EDR, ESR, ERR, ELF, ELR, ETF, ETR, EXF, EXR obtained.
But, carrying out in above-mentioned measurement process, for asking correct measurement and measuring multiport radio-frequency (RF) component 10 parameter value accurately, dual-port correction must be carried out in advance to any two ends mouth of multiport switch box 30, therefore when the port number of multiport switch box 30 is m, the dual-port that must carry out m* (m-1)/2 time number corrects, and such as, as the port number m=12 of multiport switch box 30, then the dual-port that must carry out 12* (12-1)/2=66 number corrects; By being, the dual-port of current multiport switch box 30 corrects quite complicated time-consuming.
Summary of the invention
For improving the method for measurement of above-mentioned current multiport radio-frequency (RF) component, the dual-port bearing calibration for multiport switch box is improved, and provides a kind of method for measurement of multiport radio-frequency (RF) component, and it can reduce the dual-port number of corrections of multiport switch box.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of method for measurement of multiport radio-frequency (RF) component, mainly utilize isolation inner very high between the measurement port of network analyzer, and the isolation that between the measurement port of multiport switch box, inside is very high, EXF and EXR two parameters can be left in the basket, and reuse each port correction parameter of multiport switch box, significantly to reduce the dual-port number of corrections of multiport switch box.
The invention has the beneficial effects as follows, it can reduce the dual-port number of corrections of multiport switch box.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the system schematic measuring multiport radio-frequency (RF) component.
Fig. 2 is the complete dual-port correction parameter figure of multiport radio-frequency (RF) component.
Fig. 3 is the dual-port correction parameter figure after the present invention simplifies.
Fig. 4 is each port correction parameter figure after the present invention simplifies.
Number in the figure illustrates:
10 multiport radio-frequency (RF) component
20 network analyzers
30 multiport switch boxes
Embodiment
For energy, clearer understanding the present invention be used technological means and the method thereof of achieving the goal, the dual-port correction parameter figure of multiport switch box after simplifying shown in Fig. 3 and radio frequency is hereby sincerely coordinated to measure flow chart again, and shown in Fig. 4, simplify two measurement port correction parameter figure of rear multiport switch box, be described in detail as follows:
As shown in Figure 3, the method for measurement of multiport radio-frequency (RF) component of the present invention, improved for the dual-port bearing calibration of multiport switch box 30, a kind of dual-port number of corrections method that can reduce multiport switch box 30 is provided, its method mainly utilizes isolation inner very high between the measurement port of network analyzer 20, and two of multiport switch box 30 measure isolation inner very high between port, EXF and EXR two parameters can be left in the basket, and reuse each port correction parameter of multiport switch box 30, significantly to reduce the dual-port number of corrections of multiport switch box 30.
As shown in Figure 4, for the present invention simplifies the measurement port correction parameter figure of rear multiport switch box 30, after EXF and EXR two parameters jointly belonging to Port J and Port K and measure port are taken away, further the correction parameters such as remaining EDJ, ERJ, ESJ, ELJ, ETJ, EDK, ERK, ESK, ELK, ETK are belonged to separately multiport switch box 30 two measure port Port J, Port K.
Wherein, the correction parameters such as EDJ, ERJ, ESJ, ELJ, ETJ belong to the measurement port Port J of multiport switch box 30, and the parameters such as EDK, ERK, ESK, ELK, ETK belong to the measurement port Port K of multiport switch box 30; When other port beyond the parameters such as EDJ, ERJ, ESJ, ELJ, ETJ of belonging to Port J and Port K forms dual-port, if when the measurement port Port J internal hardware path of multiport switch box 30 is identical, just correction calculation can be directly used in, do not need to do dual-port to correct, and the number of times of dual-port correction can be saved, when the parameters such as EDK, ERK, ESK, ELK, ETK of belonging to Port K are identical with Port K internal hardware path, same is directly used in and other port correction calculation.
Via above-mentioned method, such as the radio-frequency (RF) component 10 of port number n=12 must carry out the dual-port correction of 66 multiport switch boxes 30 originally, significantly can be reduced to the dual-port that need only make 11 multiport switch boxes 30 to correct, wherein having is for 5 times because same port can be different because of multiport switch box 30 internal hardware path, additionally need do dual-port and correct.For example, as the dual-port (x of multiport switch box 30, y) measurement timing is carried out, this port (x) links the measurement port Port1 of network analyzer 20 via multiport switch box 30 internal hardware circuit, and this port (y) links the measurement port Port2 of network analyzer 20 via multiport switch box 30 internal hardware circuit; Therefore, if when the port number of multiport switch box 30 is 12, it is with dual-port (1,2), (3,4), (5,6), (7,8), (9,10), the mode of (11,12) and network analyzer 20 link the dual-port making 6 multiport switch boxes 30 altogether and correct; And due to the difference in multiport switch box 30 internal hardware path, 2nd, 4,6,8,10 ports do not link with the Port1 of network analyzer 20 and correct, 3rd, 5,7,9,11 ports do not link with the Port2 of network analyzer 20 and correct, so must again with dual-port (2,3), (4,5), (6,7), (8,9), (10,11) mode and network analyzer 20 link the dual-port additionally making 5 multiport switch boxes 30 and correct, and begun enough corrections; Simultaneously, the correction calculation between multiport switch box 30 any two ends mouth can be made by above-mentioned method for measurement, as the (2,7), (1,5), (10,12) correction calculation of any two ends mouth such as, and be not limited only to the correction calculation between adjacent both ends mouth, therefore can meet needed for the computing between multiport switch box 30 any two ends mouth.By being, method for measurement described above, this port number is the multiport switch box 30 of 12, and the present invention only needs the dual-port of work 11 times to correct, and the dual-port must doing 66 times compared to existing method for measurement corrects, and significantly reduces measuring number of corrections.
By being, the present invention really significantly can reduce the dual-port number of corrections of multiport switch box; Therefore, the present invention, in structural design, use practicality and cost benefit, meets needed for industry development completely, and the structure disclosed also is have unprecedented innovative structure, there is novelty, creativeness, practicality, meet the regulation of Invention patent requirement, therefore mention application in accordance with the law.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (1)
1. the method for measurement of a multiport radio-frequency (RF) component, it is characterized in that, be applied to the correction of multiport switch box in multiport radio-frequency (RF) component measurement system, mainly utilize isolation inner very high between the measurement port of network analyzer, and two of multiport switch box measure isolation inner very high between port, EXF and EXR two parameters can be left in the basket, and reuse each port correction parameter of multiport switch box, significantly to reduce the dual-port number of corrections of multiport switch box.
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| CN201310702841.2A CN104734789A (en) | 2013-12-19 | 2013-12-19 | Measuring method for multi-port radio frequency element |
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| US20050030047A1 (en) * | 2003-08-05 | 2005-02-10 | Vahe Adamian | Method and apparatus for measuring a device under test using an improved through-reflect-line measurement calibration |
| CN102684796A (en) * | 2011-03-08 | 2012-09-19 | 梅尔根电子有限公司 | Radio frequency measuring method |
| US20120326737A1 (en) * | 2011-06-22 | 2012-12-27 | Wistron Corp. | Method of measuring scattering parameters of device under test |
| US20130134990A1 (en) * | 2011-11-30 | 2013-05-30 | Raytheon Company | Calibration measurements for network analyzers |
| CN103138858A (en) * | 2013-01-22 | 2013-06-05 | 中兴通讯股份有限公司 | Test system for interface board |
| CN103364752A (en) * | 2013-07-19 | 2013-10-23 | 中国电子科技集团公司第十三研究所 | Field calibration method of on-wafer load traction measurement system |
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2013
- 2013-12-19 CN CN201310702841.2A patent/CN104734789A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050030047A1 (en) * | 2003-08-05 | 2005-02-10 | Vahe Adamian | Method and apparatus for measuring a device under test using an improved through-reflect-line measurement calibration |
| CN102684796A (en) * | 2011-03-08 | 2012-09-19 | 梅尔根电子有限公司 | Radio frequency measuring method |
| US20120326737A1 (en) * | 2011-06-22 | 2012-12-27 | Wistron Corp. | Method of measuring scattering parameters of device under test |
| US20130134990A1 (en) * | 2011-11-30 | 2013-05-30 | Raytheon Company | Calibration measurements for network analyzers |
| US8928333B2 (en) * | 2011-11-30 | 2015-01-06 | Raytheon Company | Calibration measurements for network analyzers |
| CN103138858A (en) * | 2013-01-22 | 2013-06-05 | 中兴通讯股份有限公司 | Test system for interface board |
| CN103364752A (en) * | 2013-07-19 | 2013-10-23 | 中国电子科技集团公司第十三研究所 | Field calibration method of on-wafer load traction measurement system |
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Application publication date: 20150624 |