平面分層介質(zhì)結構的快速電磁算法研究.pdf

1、南京理工大學博士學位論文平面分層介質(zhì)結構的快速電磁算法研究姓名：莊偉申請學位級別：博士專業(yè)：電磁場與微波技術指導教師：陳如山20090901AbstractWiththefastdevelopmentofcomputationalelectromagnetictechniques，themodelsforthemultilayeredmediahavebeentheefficienttechniqueforsimulatingtheco

2、mplexelectromagneticenvironmentInthisdissertation，thefastelectromagneticsimulationofthemicrostripintegratedcircuitandmicrostripantennaarraysisinvestigatedInthisdissertationtheFormulation—CspectraldomainGreentSfunctionsfo

3、rtheanalysisoftheelectromagneticradiationandscatteringbytheperfectlyconductingobjectsofarbitraryshapeembeddedinmultilayeredmediaarederivedforthemixedpotentialintegralequation(MPIE)Thebasisprincipleofthediscretecomplexima

4、gemethod(DCIM)isinvestigatedandtheequivalentdenominatorisfirstemployedwitharigorousmathematicproofByusingrealcodedgeneticalgorithm(RGA)andtheCauchy’Sintegraltheorem，thepolesCanbeextractedSOthattheGreen’Sfunctioniscompute

5、daccuratelyafterthesurfacewavebeingproperlydealtBasedontheefficientevaluationofGreen’Sfunctions，thespatialmethodofmoment(MoM)fortheanalysisofmicrowaveintegratedcircuitsandmicrostripantennaarraysisinvestigatedInthisdisser

6、tation，themodifiedfastFouriertransformation(FFT)techniqueisinvestigatedindetail，includingadaptiveintegralmethod(AIM)，precorrectedFFTmethodsparsematrixcanonicalgridmethod(SMCG)，whichhastheadvantagesofexcellentmodelingcapa

7、bilityaswellasthatofacceleratingthematrixvectorproductbyFFTAllthesemethodscouldreducecomputationcomplexitytoO(NlogN)andthememorystoragetoO(N)，whereNisthenumberofunknownsSeveralpreconditioningtechniquesforthesemethodshave

8、beeninvestigatedinordertofurtherreducethesolutiontimeforiterativealgorithmsFurthermore，theparallelAIMisinvestigatedinthispapertofurtherreducethecomputiontime，andtheparallelpreconditioningtechniqueisemployedtoreducethesol

9、utiontimeandimprovetheparallelefficiencyTheproposedmethodattainsthefastelectromagneticsimulationofthecomplicatedandlargescaleplanarmicrostdpintegratedcircuitandmicrostripantennaarraysInthisdissertation，theperiodicstructu

10、reinmultilayeredmediafrequencyselectivesurface(FSS)isalsoinvestigatedThespectraldomainMoMisfirstinvestigatedtoanalyzeFSSThespectralimmittanceapproachisutilizedtoderivethespectralGreen，Sfunctionswiththe(RaoWilton—Glisson)