## Abstract

The accuracy of Physical Optics (PO) in the simulation of reflector antennas is investigated. We apply the PO approach to calculate the surface currents and far-field radiation patterns for two reflectors: a parabolic cylindrical reflector excited along its axis by an electric dipole, and a spherical reflector antenna excited by crossed electric and magnetic dipoles (Huygens source); the latter structure was also excited by a plane scalar wave. Comparisons with accurate benchmark solutions using the rigorous Method of Regularization demonstrate that the approximate PO approach is accurate enough to be used in practical antenna de sign; the mean-square error in radiation patterns is 0.05- 0.09dB.

Original language | English |
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Title of host publication | ICEAA 2005 - 9th International Conference on Electromagnetics in Advanced Applications and EESC 2005 - 11th European Electromagnetic Structures Conference |

Editors | Roberto D. Graglia |

Place of Publication | Piscataway, NJ |

Publisher | Institute of Electrical and Electronics Engineers (IEEE) |

Pages | 907-910 |

Number of pages | 4 |

ISBN (Print) | 8882020932, 9788882020934 |

Publication status | Published - 2005 |

Event | Joint 9th International Conference on Electromagnetics in Advanced Applications, ICEAA 2005 and 11th European Electromagnetic Structures Conference, EESC 2005 - Torino, Italy Duration: 12 Sep 2005 → 16 Sep 2005 |

### Other

Other | Joint 9th International Conference on Electromagnetics in Advanced Applications, ICEAA 2005 and 11th European Electromagnetic Structures Conference, EESC 2005 |
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Country | Italy |

City | Torino |

Period | 12/09/05 → 16/09/05 |