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1、第4O卷第3期電子科技大學(xué)學(xué)報(bào)V．0I．40No．32011年5月JournalofUniversityofElectronicScienceandTechnologyofChinaMav2011DesignofBalancedOutputHigh-·VoltageNanosecondPulseSourceforSymmetricalAntennaYANGDc-qiang，PANJin，ZHAOZhi-qin，andNIEZai-ping(SchoolofElectronicEngineering,UniversityofElectronicScienceandTechnologyofC
2、hinaChengdu610054)AbstractTime．domainirepulsegeneratorisaveryimportantunit．mtime—domainultra-bandradarS)rstems．Mosttime．doma．mimpulseantennasaresymmetricallydesignedwhichrequirebalancedoutputpulsegeneratorsordertorealizewidebandmatching．Ain1iI1gtosolvethecompatibleproblemofhighvoltageandbalancedo
3、utput,whichcommonlyexistsinhigh-voltagepulsegenerators，thispaperdesignsanewpulsegeneratorcircuit,thecascadeMarxcircuitwithbalancedoutput．Witl1tl1isgeneratorandaloadedbow-tieantenila’a300Vnanosecondpulsewasgenerated．Themeasuredresultvalidatestheeffectivenessoftheproposedpulsegenerator．Keywordsbala
4、ncedoutOut：Marxcircuit；nanosecondpulse；symmetricalal1tenna適合對(duì)稱天線的平衡輸出高壓納秒級(jí)脈沖源研究楊德強(qiáng)，潘錦，趙志欽，聶在平(電子科技大學(xué)電子工程學(xué)院成都610054)【摘要】時(shí)域脈沖源是時(shí)域超寬帶雷達(dá)系統(tǒng)中的重要部件，時(shí)域脈沖天線大多采用對(duì)稱形式，如果用非平衡高壓脈沖源激勵(lì)，難以實(shí)現(xiàn)很好的寬帶匹配．為此設(shè)計(jì)了一種新的電路形式，采用平衡輸出的Marx~路級(jí)聯(lián)，解決了脈沖源高幅度和平衡輸出不能兼顧的問題．利用與對(duì)稱天線進(jìn)行的納秒級(jí)脈沖收發(fā)實(shí)驗(yàn)驗(yàn)證了該電路的良好性能．關(guān)鍵詞平衡輸出；Marx~路；納秒級(jí)脈沖：對(duì)稱天線中圖分類號(hào)TN
5、784．1文獻(xiàn)標(biāo)識(shí)碼Adoi：10．3969／j．issn．1001-0548．2011．03．007Thetime‘domainimpulsehasbeenwidelyused’multra-bandtime．domainpulse．Inordertosolvethegroundpenetratingradar(GPR)forconcealedtargetscompatibleproblemofhighvoltageandbalanceddetectionI¨．Theantennasusedfortransmissionareoutput,thispaperdesignsanewpul
6、segeneratorcircuit,usuallysymmetricallydesignedordertorealizewhichUSeSthecascadeMarxcircuitwithbalancedwidebandmatchingI2-41．Therefore，pulsegeneratoroutput．Experimentalresultshowsthatthenewpulsewithbalancedoutputisadopted．Inradarsystem，thegeneratorCallmeettherequirementsofbalanceddetectionrangeis
7、averyimportantparameter．Usuallyoutputandhighamplitudeofabipolarpulse．highamplitudeoutputofthepulsegeneratoris1DesignoftheSymmetricalMarxdemandedforlongdistancedetection．However,itisCircuitimpossibleforasingleavalanchet
