基于RWG-MOM法探针馈电圆柱共形微带天线阻抗的全波分析
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摘要
针对圆柱分层并矢格林函数计算圆柱共形微带天线存在的奇异性和慢收敛问题,本文提出了一种有效地分析计算探针馈电圆柱共形微带天线的方法。首先,提出了一种分区域计算方法,克服了计算过程中遇到的奇异性和慢收敛的缺点。然后,采用金属细带等效探针模型,利用RWG基函数结合矩量法对探针馈电圆柱共形微带天线进行了理论分析。最后,通过仿真计算验证了本文方法的有效性和正确性,对柱形飞行器上共形天线的精确计算具有重要的理论价值和工程计算实际意义。
For the singularity and slow convergence of cylindrically conformal microstrip antenna using cylindrically stratified dyadic Green’s function,an efficient calculation method is presented to analyze the probe-fed cylindrically conformal microstrip antenna in this paper.Firstly,a method of domain-division is proposed,and it effectively overcomes the drawbacks of the singularity and slow convergence by computer calculation.And then,adopting metal strip model to simulate the probe,it provides theoretic analysis of probe-fed cylindrically conformal microstrip antenna using RWG basis functions and MOM.Lastly,calculated results show the effectiveness and accuracy of the proposed method,it would have important academic value and engineering significance in the accurate analysis of conformal microstrip antenna on cylindrically aerial vehicle.
For the singularity and slow convergence of cylindrically conformal microstrip antenna using cylindrically stratified dyadic Green’s function,an efficient calculation method is presented to analyze the probe-fed cylindrically conformal microstrip antenna in this paper.Firstly,a method of domain-division is proposed,and it effectively overcomes the drawbacks of the singularity and slow convergence by computer calculation.And then,adopting metal strip model to simulate the probe,it provides theoretic analysis of probe-fed cylindrically conformal microstrip antenna using RWG basis functions and MOM.Lastly,calculated results show the effectiveness and accuracy of the proposed method,it would have important academic value and engineering significance in the accurate analysis of conformal microstrip antenna on cylindrically aerial vehicle.
引文
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[7]Mang He and Xiaowen Xu.Closed-form solutions foranalysis of cylindrically conformal microstripantennas with arbitrary radii[J],IEEETransactions Antennas Propogat,2005,53(1):518-525
[8]胡梦中,尹成友,宋铮,熊俊卿.圆柱分层介质中格林函数的完整求解I:场型格林函数[J].微波学报,2009,25(3):1-6
[9]Michaski K A and Dalian Zheng.Electromagneticscattering and radiation by surfaces ofarbitrary shape in layered media,partⅠandⅡ[J],IEEE Transactions on Antennas Propagat,1990,38(3):335-352
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[11]Damiano J P and Papiernik A.Survey of analyticaland numerical models for probe-fed microstripantennas[J],IEE Antennas Propogat,1994,141(1):15–22
[2]Khedrouche D,Bouttout F,Fortaki T.Spectral-domain analysis of multilayercylindrical-rectangular microstrip antennas[J],ELSEVIER,Engineering Analysis with BoundaryElements,2009,33:930-939
[3]Svezhentsev A,Vandenbosch G A E.Effcientspatial domain moment method solution ofcylindrical rectangular microstrip antennas[J],IEE Proc Microw Antennas Propag,2006,153(4):376-384
[4]Karan S,Ertürk V B,and Altintas A.Closed-formGreen’s function representations incylindrically stratified media for method ofmoments applications[J].IEEE TransactionsAntennas Propogat,2009,57(4):1158-1168
[5]Ertürk V B and Rojas R G.Paraxial space-domainformulation for surface fields on a largedielectric coated circular cylinder[J],IEEETransactions Antennas Propogat,2002,50(11):1577-1587
[6]Ertürk V B and Rojas RG.Efficient analysis ofinput impedance and mutual coupling ofmicrostrip antennas mounted on large coatedcylinders[J],IEEE Transactions AntennasPropogat,2003,51(4):739-749
[7]Mang He and Xiaowen Xu.Closed-form solutions foranalysis of cylindrically conformal microstripantennas with arbitrary radii[J],IEEETransactions Antennas Propogat,2005,53(1):518-525
[8]胡梦中,尹成友,宋铮,熊俊卿.圆柱分层介质中格林函数的完整求解I:场型格林函数[J].微波学报,2009,25(3):1-6
[9]Michaski K A and Dalian Zheng.Electromagneticscattering and radiation by surfaces ofarbitrary shape in layered media,partⅠandⅡ[J],IEEE Transactions on Antennas Propagat,1990,38(3):335-352
[10]Makarov Sergey N.Antenna and EM modeling withMATLAB[M].John Wiley and Sons,Inc,2002
[11]Damiano J P and Papiernik A.Survey of analyticaland numerical models for probe-fed microstripantennas[J],IEE Antennas Propogat,1994,141(1):15–22