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Research On Key Technologies Of Radio Frequencies Magnetic Flux Compression Generator

Posted on:2013-09-06Degree:MasterType:Thesis
Country:ChinaCandidate:Y C HanFull Text:PDF
GTID:2268330392968078Subject:Electromagnetic field and microwave technology
Abstract/Summary:PDF Full Text Request
21st century, with the development of high level integration of electrical andelectronic systems, human society is increasingly high degree of dependence ofelectrical and electronic equipment. The risk of high-intensity electromagnetic pulseinterference and damage may be increased with it. Related technologies haveattracted strong interest of the world’s major military powers. For the reason of thevulnerability of electronic systems relative electromagnetic pulse, this kind oftechnology has been attached great importance to the world’s major military powers.According to the technologies of magnetic flux compression, theelectromagnetic pulse technology has been discussed in this paper. The currentresearching and significant tendency of technologies of magnetic flux compressionat home and abroad was reviewed. The working principle of radio frequencies ofmagnetic flux compression generator (RF MFCG) was discussed by analyzing thepeculiarity of RF MFCG. The dynamic resistance and dynamic inductance of RFMFCG was talked in this paper, and the analytic expressions of them have beengiven. In order to analyze the influence of dynamic resistance and dynamicinductance for RF MFCG, the outcome of RF MFCG in different conditions isanalytically simulated. The appropriate auxiliary parameters were introduced tosimplify the analysis process. Discussed the relationship of the parameters and thepeak output current IMAX. The numerical solution of the relationship of dynamicresistance variation rate and output current has been given. Discussed the relationsof load small capacitance and output current, and gave the corresponding fittingcurve; analyzed the influences of load capacitance value for the system operatingfrequencies, gave the fitting results and expression; talked the influences of indirectfeeding pattern on the system output, the relationship between the load resistor thecoupling coefficient and the output current have been in order to prove that theindirect feeding pattern were able to drive the large resistive loads.Simulation model of the RF MFCG which is based on Cadence/PSpicesimulation software was given. For the purpose of proving the validity of themodel, compared the simulation model with the previous experimental results, anddiscuss the impact of load capacitance on the output of the system, gives the outputspectrum of the system.In order to improve the RF MFCG operating frequency, the segmentationworking RF MFCG research was given. The working principle and the structure ofthe segmentation of RF MFCG were discussed. Analysed its performance, the outputof the three sections RFMFCG were mentioned. The results show that this way could effectively increase the working frequency band of RFMFCG to improve theoutcomes.
Keywords/Search Tags:electromagnetic pulse, radio frequencies magnetic flux compressiongenerator, operating frequency, load capacitance, segment RFMFCG
PDF Full Text Request
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