CN201548628U - Super-wide frequency-band durable microwave testing device - Google Patents
Super-wide frequency-band durable microwave testing device Download PDFInfo
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- CN201548628U CN201548628U CN2009202119062U CN200920211906U CN201548628U CN 201548628 U CN201548628 U CN 201548628U CN 2009202119062 U CN2009202119062 U CN 2009202119062U CN 200920211906 U CN200920211906 U CN 200920211906U CN 201548628 U CN201548628 U CN 201548628U
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- microwave
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Abstract
The utility model relates to a super-wide frequency-band durable microwave testing device, which comprises a microwave network analysis instrument, a program-control computer, a microwave cable, a transmitting antenna, a receiving antenna, a supporting bracket, a test platform and a wave absorption material layer, wherein the microwave network analysis instrument is connected with the program-control computer through an interface fieldbus card, the transmitting and the receiving antennas are arranged on the supporting bracket and are connected with the microwave network analysis instrument through the microwave cable, the test platform is arranged at the inner side of the supporting bracket, and the wave absorption material layer is arranged on the periphery of the test platform. Compared with the prior art, the super-wide frequency-band durable microwave testing device has the advantages of good fireproofing performance, high bearing power, low cost, long service life and the like.
Description
Technical field
The utility model relates to a kind of Microwave Test Equipment, especially relates to a kind of ultrabroad band durable type Microwave Test Equipment.
Background technology
The microwave test darkroom occurred in the seventies in last century, but both at home and abroad all with the absorbing material matrix of flexible polyurethane foams as its inside use, cut into pyramidally, make, paste by tackifier then and be installed in the darkroom by technologies such as chemical coating dipping, oven dry.
Because what use is easily aging isocyanurate foam absorbing material, be generally 5-8 the serviceable life in this darkroom, and isocyanurate foam itself is macromolecular material, and self oxygen index is about 17%-18%, belongs to inflammable thing.It is installed and adopts bonding method in addition, and as time passes, viscose glue is aging gradually, and material comes off easily, and also there is influence in viscose glue to environment.Produce highly higher polyurethane wave-absorbing material (as height more than the 1000mm), the processing technology difficulty, the product uniformity consistency is relatively poor, unstable properties, oven dry cost costliness.Producer generally seldom produces the above polyurethane wave-absorbing material of 1000mm, but electromagnetic compatible dark chamber (mainly using frequency range to be 30MHz-1GHz), for satisfying the absorbing material that low frequency performance must use height more than the 1000mm.For addressing this problem, the mode that present a kind of ferrite of international popular and isocyanurate foam pyramid meet use satisfies the performance requirement of electromagnetic compatible dark chamber to test site.It is very high that but electromagnetic compatible dark chamber uses ferrite to meet material cost, be 2～3 times of polyurethane material, and polyurethane material average milk power is less than 0.8kw/m
2, can't satisfy the requirement of high-power emissive source test.In the 80-90 age in last century, because isocyanurate foam absorbing material fire resistance is relatively poor, domestic a lot of microwave dark room fire failures took place.
Summary of the invention
The purpose of this utility model be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of fire protecting performance good, bear power height, ultrabroad band durable type Microwave Test Equipment that cost is low.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of ultrabroad band durable type Microwave Test Equipment, it is characterized in that, this equipment comprises microwave network analyzer, program control computer, microwave cable, emitting antenna, receiving antenna, bracing frame, test platform and absorbing material layer, described microwave network analyzer is by the program control computer of general purpose interface bus card connection, described emitting antenna and receiving antenna are located on the bracing frame, emitting antenna and receiving antenna are connected with microwave network analyzer by microwave cable, described test platform is located at the bracing frame inboard, and described absorbing material layer is located at around the test platform.
Described bracing frame is arc.
Described absorbing material layer is pyramidal structure.
Compared with prior art, the utlity model has following advantage:
(1) the utility model fire protecting performance is superior, compares with 26% oxygen index of conventional urethane foam wave-suction material, and the absorbing material layer is nonflammable, and oxygen index reaches 60%, far surpasses national B2 level fire-protection standard;
(2) the utility model bears the power height, and the anti-power of traditional isocyanurate foam absorbing material generally is no more than 0.8kW/m
2, and the anti-power of novel nonflammable high power pyramid absorbing material can reach 5kW/m
2
(3) the utility model cost is low, the nonflammable high power absorbing material that uses is low than conventional urethane foam wave-suction material cost, when building large-scale EMC darkroom testing apparatus, have great advantage especially on the ferrite composite material price that nonflammable high power absorbing material compares, and it can take into account EMC and antenna measurement, build the EMC darkroom than simultaneously and the antenna darkroom is more economical, absorbing material takes the novel microwave testing apparatus of the mode of mounting can utilize its original absorbing material fully during resettlement, saves a large sum of reconstruction expenses;
(4) the anti-aging degree of the utility model is better than the isocyanurate foam absorbing material greatly, and can reach 15 years serviceable life, and not dry linting, do not fall slag, test environment is good, absorbing material layer centrum is consistent throughout the year.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural drawing of absorbing material layer.
1 is that microwave network analyzer, 2 is that program control computer, 3 is that microwave cable, 4 is that emitting antenna, 5 is that receiving antenna, 6 is that bracing frame, 7 is that test platform, 8 is that absorbing material layer, 9 is a sample among the figure.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
A kind of ultrabroad band durable type Microwave Test Equipment, its structure as shown in Figure 1, this equipment comprises microwave network analyzer 1, program control computer 2, microwave cable 3, emitting antenna 4, receiving antenna 5, bracing frame 6, test platform 7 and absorbing material layer 8, microwave network analyzer 1 connects program control computer 2 by general purpose interface bus card (GPIB card), emitting antenna 4 and receiving antenna 5 are located on the arc bracing frame 6, and emitting antenna 4 and receiving antenna 5 are connected with microwave network analyzer 1 by microwave cable 3.The emitting antenna 4 on the program control computer 2 control arch form supporting frames 6 and the position of receiving antenna 5, change the electromagnetic wave incident angle and accept angle, make that the data of measuring are consistent with the actual environment reaction, the measuring accuracy height, and adopt bow-shaped support to help the maintenance of equipment, reduce maintenance difficulties, further reduce cost, rational in infrastructure, easy to loading and unloading.Test platform 7 is located at the inboard of bracing frame 6, places sample 9 above, absorbing material layer 8 be located at test platform 7 around.This absorbing material layer 8 is pyramidal structure, is base material with the nonwoven fabrics, and fire retardant and conductive agent evenly are coated on the nonwoven fabrics respectively, makes the cube-corner elements body, and this kind Flame Retardancy can be higher, and oxygen index can reach more than 60%, bears power 2-15kW/m
2, solved the relatively poor situation of polyurethane wave-absorbing material fire resistance substantially, also satisfied the requirement of bearing power, and this kind material pyramid is tall and straight, and matrix guarantees easily, the no elbow of long-term use, because it takes the mode of mounting, and has avoided the environmental pollution of viscose glue to equipment, it is also more easy to remove.
Utilize this testing equipment, signal source and frequency spectrograph preheating 30min; Sample 9 is positioned on the test platform 7, about height 200cm, connects antenna, signal source and frequency spectrograph are measured level value, and record data; Move tested day line-spacing original position 10cm, 20cm, record level data this moment so respectively.According to following Equation for Calculating darkroom comprehensive electrochemical properties, the data that calculate are as shown in table 1.
Voltage standing wave(VSW) ratio S (db)=201g (Emax/Emin)
The dead zone level
Table 1 ultrabroad band durable type Microwave Test Equipment comprehensive electrochemical properties exemplary value table
| Frequency (GHz) | Before | In | After | Dead zone (dB) |
| 1 | -26.1 | -26.2 | -26.5 | -40.7 |
| 2 | -26 | -26.3 | -26.4 | -40.7 |
| 3 | -26.6 | -26.7 | -26.9 | -41 |
| 4 | -27.6 | -26.9 | -26.7 | -41 |
| 5 | -27.3 | -27.4 | -27.5 | -41 |
| 5.6 | -28.2 | -28.3 | -28.3 | -41.3 |
| 6 | -27.3 | -27.4 | -27.5 | -41.6 |
| 7 | -30.73 | -30.9 | -31.2 | -40.3 |
| 8 | -30.7 | -31.2 | -31.1 | -40.4 |
| 9 | -34.5 | -34.6 | -34.7 | -41.3 |
| 9.37 | -33.8 | -33.9 | -33.9 | -41.6 |
| 10 | -36.2 | -36 | -36.1 | -41.3 |
| 11 | -36.2 | -36.3 | -36.4 | -41.3 |
| 12 | -38.8 | -38.7 | -38.8 | -41.6 |
| 13 | -39.6 | -39.8 | -39.9 | -41.6 |
| 14 | -38.6 | -38.7 | -38.8 | -41.6 |
| 15 | -40.3 | -40.4 | -40.6 | -41 |
| 16 | -43.8 | -43.6 | -43.7 | -41.3 |
| 17 | -43 | -42.6 | -42.5 | -40.4 |
| 18 | -45 | -45.4 | -45.5 | -40.4 |
| 19 | -46.1 | -46.3 | -46.2 | -41.3 |
| 20 | -46.3 | -46.0 | -46.1 | -41 |
| Frequency (GHz) | Before | In | After | Dead zone (dB) |
| 21 | -47.1 | -47.2 | -47 | -41.4 |
| 22 | -47.2 | -47.3 | -47.4 | -42.1 |
| 23 | -47.3 | -47 | -47.1 | -42.3 |
| 24 | -46.1 | -46.2 | -46.4 | -41.3 |
| 25 | -45.1 | -45.3 | -45 | -40.1 |
| 26 | -47.1 | -47 | -47.4 | -41.2 |
| 27 | -48.2 | -48 | -48.1 | -43 |
| 28 | -48.1 | -48.2 | -48.3 | -43.1 |
| 29 | -48.4 | -48.5 | -48.2 | -44.3 |
| 30 | -48.6 | -48.4 | -48.8 | -45 |
| 31 | -47.8 | -47.9 | -48 | -44.6 |
| 32 | -48.4 | -48 | -48.6 | -43.8 |
| 33 | -48.7 | -48.5 | -48.8 | -44.6 |
| 34 | -49 | -49.1 | -49.2 | -45.1 |
| 35 | -49.2 | -49.3 | -49.4 | -45.4 |
| 36 | -49.3 | -49.3 | -49.2 | -45.3 |
| 40 | -49.1 | -49 | -49.2 | -45.1 |
Claims (3)
1. ultrabroad band durable type Microwave Test Equipment, it is characterized in that, this equipment comprises microwave network analyzer, program control computer, microwave cable, emitting antenna, receiving antenna, bracing frame, test platform and absorbing material layer, described microwave network analyzer is by the program control computer of general purpose interface bus card connection, described emitting antenna and receiving antenna are located on the bracing frame, emitting antenna and receiving antenna are connected with microwave network analyzer by microwave cable, described test platform is located at the bracing frame inboard, and described absorbing material layer is located at around the test platform.
2. a kind of ultrabroad band durable type Microwave Test Equipment according to claim 1 is characterized in that described bracing frame is arc.
3. a kind of ultrabroad band durable type Microwave Test Equipment according to claim 1 is characterized in that described absorbing material layer is pyramidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202119062U CN201548628U (en) | 2009-11-05 | 2009-11-05 | Super-wide frequency-band durable microwave testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202119062U CN201548628U (en) | 2009-11-05 | 2009-11-05 | Super-wide frequency-band durable microwave testing device |
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| Publication Number | Publication Date |
|---|---|
| CN201548628U true CN201548628U (en) | 2010-08-11 |
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| CN2009202119062U Expired - Fee Related CN201548628U (en) | 2009-11-05 | 2009-11-05 | Super-wide frequency-band durable microwave testing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983937A (en) * | 2014-06-06 | 2014-08-13 | 广州广电计量检测股份有限公司 | Signal detection system applied to anechoic chamber |
| CN104749451A (en) * | 2013-12-27 | 2015-07-01 | 深圳市计量质量检测研究院 | Anechoic chamber and using method thereof |
| CN106990299A (en) * | 2017-04-01 | 2017-07-28 | 工业和信息化部电信研究院 | The arch support that material electromagnetic property is measured in being modeled for radio communication channel |
| CN111965448A (en) * | 2020-07-31 | 2020-11-20 | 中国航空工业集团公司济南特种结构研究所 | Test equipment and test method for equivalent flat plate power reflection |
-
2009
- 2009-11-05 CN CN2009202119062U patent/CN201548628U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749451A (en) * | 2013-12-27 | 2015-07-01 | 深圳市计量质量检测研究院 | Anechoic chamber and using method thereof |
| CN103983937A (en) * | 2014-06-06 | 2014-08-13 | 广州广电计量检测股份有限公司 | Signal detection system applied to anechoic chamber |
| CN106990299A (en) * | 2017-04-01 | 2017-07-28 | 工业和信息化部电信研究院 | The arch support that material electromagnetic property is measured in being modeled for radio communication channel |
| CN106990299B (en) * | 2017-04-01 | 2024-02-20 | 工业和信息化部电信研究院 | Arched bracket for measuring electromagnetic characteristics of materials in modeling of wireless communication channels |
| CN111965448A (en) * | 2020-07-31 | 2020-11-20 | 中国航空工业集团公司济南特种结构研究所 | Test equipment and test method for equivalent flat plate power reflection |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING NANDA BOPING ELECTRONICS INFORMATION CO., Free format text: FORMER OWNER: SHANGHAI BOPING AVIATION TECHNOLOGY CO., LTD. Effective date: 20120320 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 201108 MINHANG, SHANGHAI TO: 210000 NANJING, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120320 Address after: 210000 Jiangsu city of Nanjing province's economic and Technological Development Zone No. 68 peptide Branch Center Patentee after: Nanjing Nanda Boping Electronics Information Co., Ltd. Address before: 201108, room 2, building 6, building 4289, 173 Jin Du Road, Shanghai, Minhang District Patentee before: Shanghai Boping Aviation Technology Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: NANJING BOPING ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NANJING NANDA BOPING ELECTRONICS INFORMATION CO., LTD. Effective date: 20141205 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141205 Address after: 210000 Jiangsu city of Nanjing province high tech Industrial Development Zone Huidalu No. 6 Beidou 2 storey building Patentee after: NANJING BOPING ELECTRONIC TECHNOLOGY CO., LTD. Address before: 210000 Jiangsu city of Nanjing province's economic and Technological Development Zone No. 68 peptide Branch Center Patentee before: Nanjing Nanda Boping Electronics Information Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20171105 |