### Abstract

The possibility of implementing the Coulomb gauge in time-domain electric field integral-equation numerical calculations is examined. Two formulations are explored, including the use of a solenoid current and replacement of the Lorentz gauge Green's function with that of the Coulomb gauge. It is shown that the Coulomb gauge involves a 3D integration and solution of a matrix equation at each time step, while the Lorentz gauge requires a 2D integration and no matrix equation.

Original language | English |
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Pages (from-to) | 586-589 |

Number of pages | 4 |

Journal | Microwave and Optical Technology Letters |

Volume | 4 |

Issue number | 13 |

Publication status | Published - Dec 1991 |

Externally published | Yes |

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## Cite this

Rynne, B. P., Smith, P. D., & Nevels, R. D. (1991). Time-domain scattering calculations in the Coulomb gauge.

*Microwave and Optical Technology Letters*,*4*(13), 586-589.