### Abstract

The description of high-frequency diffraction by elongated spheroids encounters well-known difficulties. In particular, numerical analysis requires extensive computations, while high-frequency asymptotic expansion established by Fock, appears inaccurate for spheroids with high aspect ratio b/a (where a and b are the minor and the major semiaxes). The special asymptotic procedure have been developed in [1]-[3] and other papers under the assumption that ka^{2}/b remains finite, while kb is asymptotically large. All that papers considered plane wave incidence. In this paper we extend the approach and study the effects of diffraction of the incident wave generated by a point dipole source. The final expression for the electromagnetic field is given as the sum of Fourier harmonics, each represented in the form of an integral involving Whittaker functions.

Original language | English |
---|---|

Title of host publication | 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama) |

Publisher | Institute of Electrical and Electronics Engineers Inc. |

Pages | 59-65 |

Number of pages | 7 |

Volume | 2018-August |

ISBN (Electronic) | 9784885523151 |

DOIs | |

Publication status | Published - 31 Dec 2018 |

Event | 2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018 - Toyama Duration: 1 Aug 2018 → 4 Aug 2018 |

### Conference

Conference | 2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018 |
---|---|

Country | Japan |

City | Toyama |

Period | 1/08/18 → 4/08/18 |

### Fingerprint

### Scopus subject areas

- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials

### Cite this

*2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama)*(Vol. 2018-August, pp. 59-65). [8598091] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/PIERS.2018.8598091

}

*2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama).*vol. 2018-August, 8598091, Institute of Electrical and Electronics Engineers Inc., pp. 59-65, Toyama, 1/08/18. https://doi.org/10.23919/PIERS.2018.8598091

**Dipole Field Diffraction by a Strongly Elongated Spheroid in High-Frequency Approximation.** / Andronov, I.V.

Research output › › peer-review

TY - GEN

T1 - Dipole Field Diffraction by a Strongly Elongated Spheroid in High-Frequency Approximation

AU - Andronov, I.V.

PY - 2018/12/31

Y1 - 2018/12/31

N2 - The description of high-frequency diffraction by elongated spheroids encounters well-known difficulties. In particular, numerical analysis requires extensive computations, while high-frequency asymptotic expansion established by Fock, appears inaccurate for spheroids with high aspect ratio b/a (where a and b are the minor and the major semiaxes). The special asymptotic procedure have been developed in [1]-[3] and other papers under the assumption that ka^{2}/b remains finite, while kb is asymptotically large. All that papers considered plane wave incidence. In this paper we extend the approach and study the effects of diffraction of the incident wave generated by a point dipole source. The final expression for the electromagnetic field is given as the sum of Fourier harmonics, each represented in the form of an integral involving Whittaker functions.

AB - The description of high-frequency diffraction by elongated spheroids encounters well-known difficulties. In particular, numerical analysis requires extensive computations, while high-frequency asymptotic expansion established by Fock, appears inaccurate for spheroids with high aspect ratio b/a (where a and b are the minor and the major semiaxes). The special asymptotic procedure have been developed in [1]-[3] and other papers under the assumption that ka^{2}/b remains finite, while kb is asymptotically large. All that papers considered plane wave incidence. In this paper we extend the approach and study the effects of diffraction of the incident wave generated by a point dipole source. The final expression for the electromagnetic field is given as the sum of Fourier harmonics, each represented in the form of an integral involving Whittaker functions.

UR - http://www.scopus.com/inward/record.url?scp=85060958037&partnerID=8YFLogxK

U2 - 10.23919/PIERS.2018.8598091

DO - 10.23919/PIERS.2018.8598091

M3 - Conference contribution

AN - SCOPUS:85060958037

VL - 2018-August

SP - 59

EP - 65

BT - 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama)

PB - Institute of Electrical and Electronics Engineers Inc.

ER -