Gürel, LeventŞendur, İbrahim Kürşat2016-02-082016-02-081997-070272-4693http://hdl.handle.net/11693/27723Date of Conference: 13-18 July 1997Conference name: IEEE Antennas and Propagation Society International Symposium 1997. DigestElectromagnetic radiation problems involving electrically large radiators and reflectors are solved using the fast multipole method (FMM). The FMM enables the solution of large problems with existing computational resources by reducing the computational complexity by a faster equivalent of O(N) complexity in each iteration of an iterative scheme. Three dimensional radiation problems involving complicated geometries are modeled using arbitrary surface triangulations. Piecewise linear basis functions defined on triangular domains due to Rao, Wilton, and Glisson (RWG) basis functions are used to approximate the induced currents. Using delta-gap voltage sources and prescribed current distributions, the operations of various antennas are simulated.EnglishApproximation theoryComputational complexityDipole antennasElectromagnetic compatibilityElectromagnetic field theoryElectromagnetic wavesFunctionsIterative methodsPiecewise linear techniquesProblem solvingArbitrary surface triangulationsFast multipole method (FMM)Antenna radiationConference Paper10.1109/APS.1997.630094https://doi.org/10.1109/APS.1997.63009410.1109/APS.1997.630094