基于象散波束追踪的UTD方法
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摘要
提出以一致性几何绕射理论为基础,采用象散波束追踪法的高频近似分析方法,旨在解决离散平面片建模的飞机、舰船等复杂天线系统辐射分析问题。该方法能够实现任意复杂形体的射线追踪及UTD应用,应用范围广、计算速度快、适用于电大复杂系统。
This paper presents a high-frequency asymptotic numerical approach to solve the problem of radiation analysis for complex antenna systems such as aircraft, ships which are modeled by planar facets. This approach is based on the uniform geometrical theory of diffraction, using the advanced astigmatic beam tracing theory as its ray tracing method. This approach can solve the ray tracing and UTD application problem of any complicated system, so it has the advantages of wide application, fast calculation speed, and can be applied to electrical large systems.
This paper presents a high-frequency asymptotic numerical approach to solve the problem of radiation analysis for complex antenna systems such as aircraft, ships which are modeled by planar facets. This approach is based on the uniform geometrical theory of diffraction, using the advanced astigmatic beam tracing theory as its ray tracing method. This approach can solve the ray tracing and UTD application problem of any complicated system, so it has the advantages of wide application, fast calculation speed, and can be applied to electrical large systems.
引文
[1]P.H.Pathak,G.Carluccio,M.Albani.The Uniform Theory of Diffraction and some of its applications[J].IEEE Antennas&Propagation Magazine,2013,55(4):41-69.
[2]B.Bencivenga,F.Mioc,L.J.Foged,etc.An Accurate and Computationally efficient tool using UTD on detailed meshed geometries[C]//3rd European Conference on Antennas and Propagation 2009.Berlin,German:VDE Conference Services,2009:2075-2078.
[3]E.Di Giampaolo,M.Sabbadini,F.Bardati.Astigmatic beam tracing for GTD/UTD methods in 3-D complex environments[J].Journal of Electromagnetic Waves and Applications,2001(15):439-460.
[4]Norm Dadoun,David G.Kirkpatrick,John P.Walsh.The geometry of beam tracing[C]//Proceedings of the first annual symposium on Computational geometry.Baltimore,Maryland,USA:ACM,1985:55-61.
[5]E.Di Giampaolo,F.Bardati,M.Sabbadini.Performance evaluation of Astigmatic Beam Tracing in the application to picocell scenarios[C]//IEEE Antennas and Propagation Society International Symposium 2002.San Antonio,TX:IEEE,2002:354-357.
[6]E.Di Giampaolo,F.Bardati,M.Sabbadini.Preconditioned Astigmatic Beam Tracing for Urban Propagation[J].IEEE Microwave Wireless Components Letters,2003(13):8.
[7]M.F.Cátedra,J.M.Gómez,F.Saéz de Adana,etc.Application of Ray Tracing Acceleration Techniques for The Analysis of Antennas on Complex Platforms Modelled by NURBS[C]//IEEE Antennas and Propagation International Symposium 2005.Washington DC,USA:IEEE,2005:167-170.
[8]L.Lozano,M.I.Hermandez,C.Romera,etc.Ray-Tracing Acceleration Techniques to Compute RCS of Complex Targets[C]//IEEE Antennas and Propagation Society International Symposium 2004.Monterey,CA,USA:IEEE,2004(4):4495-4498.
[9]L.Lozano,E.Ortega,F.Saéz de Adana,etc.Improvements in ray-tracing acceleration techniques to compute diffraction effect and doubles and triples effects in the RCS prediction of complex targets[C]//IEEE Antennas and Propagation Society International Symposium 2005.Washington DC,USA:IEEE,2005(3A):93-96.
[10]C.Delgado,L.Lozano,O.Gutierrez,etc.Iterative PO Method Based on Currents Modes and Angular Z-Buffer technique[C]//IEEE Antennas and Propagation Society International Symposium2006.Albuquerque,NM USA:IEEE,2006:1853-1856.
[2]B.Bencivenga,F.Mioc,L.J.Foged,etc.An Accurate and Computationally efficient tool using UTD on detailed meshed geometries[C]//3rd European Conference on Antennas and Propagation 2009.Berlin,German:VDE Conference Services,2009:2075-2078.
[3]E.Di Giampaolo,M.Sabbadini,F.Bardati.Astigmatic beam tracing for GTD/UTD methods in 3-D complex environments[J].Journal of Electromagnetic Waves and Applications,2001(15):439-460.
[4]Norm Dadoun,David G.Kirkpatrick,John P.Walsh.The geometry of beam tracing[C]//Proceedings of the first annual symposium on Computational geometry.Baltimore,Maryland,USA:ACM,1985:55-61.
[5]E.Di Giampaolo,F.Bardati,M.Sabbadini.Performance evaluation of Astigmatic Beam Tracing in the application to picocell scenarios[C]//IEEE Antennas and Propagation Society International Symposium 2002.San Antonio,TX:IEEE,2002:354-357.
[6]E.Di Giampaolo,F.Bardati,M.Sabbadini.Preconditioned Astigmatic Beam Tracing for Urban Propagation[J].IEEE Microwave Wireless Components Letters,2003(13):8.
[7]M.F.Cátedra,J.M.Gómez,F.Saéz de Adana,etc.Application of Ray Tracing Acceleration Techniques for The Analysis of Antennas on Complex Platforms Modelled by NURBS[C]//IEEE Antennas and Propagation International Symposium 2005.Washington DC,USA:IEEE,2005:167-170.
[8]L.Lozano,M.I.Hermandez,C.Romera,etc.Ray-Tracing Acceleration Techniques to Compute RCS of Complex Targets[C]//IEEE Antennas and Propagation Society International Symposium 2004.Monterey,CA,USA:IEEE,2004(4):4495-4498.
[9]L.Lozano,E.Ortega,F.Saéz de Adana,etc.Improvements in ray-tracing acceleration techniques to compute diffraction effect and doubles and triples effects in the RCS prediction of complex targets[C]//IEEE Antennas and Propagation Society International Symposium 2005.Washington DC,USA:IEEE,2005(3A):93-96.
[10]C.Delgado,L.Lozano,O.Gutierrez,etc.Iterative PO Method Based on Currents Modes and Angular Z-Buffer technique[C]//IEEE Antennas and Propagation Society International Symposium2006.Albuquerque,NM USA:IEEE,2006:1853-1856.