Publication detail

Numerical modeling of a spherical array of monopoles using FDTD method

FRANEK, O. PEDERSEN, G. ANDERSEN, J.

Original Title

Numerical modeling of a spherical array of monopoles using FDTD method

Type

journal article in Web of Science

Language

English

Original Abstract

In this paper, the spherical-coordinate finite-difference time-domain method is applied to numerical analysis of phased array of monopoles distributed over a sphere. Outer boundary of the given problem is modeled by accurate spherical-coordinate anisotropic perfectly matched layer. The problem of increased cell aspect ratio near the sphere poles causing degradation of results is solved by dispersion optimization through artificial anisotropy. The accuracy of the approach is verified by comparing a model case with an exact solution. Finally, radiation patterns obtained by frequency-domain near-to-far-field transform and s-parameters of the array elements are presented and validated by comparing with measurement data.

Keywords

antenna arrays; finite-difference time-domain (FDTD) methods; spherical antennas; spherical coordinates; ultrawideband technology

Authors

FRANEK, O.; PEDERSEN, G.; ANDERSEN, J.

Released

1. 7. 2006

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Location

PISCATAWAY

ISBN

0018-926X

Periodical

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION

Year of study

54

Number

7

State

United States of America

Pages from

1952

Pages to

1963

Pages count

12

URL

https://vbn.aau.dk/ws/files/57775515/sphere_openaccess.pdf

BibTex

@article{BUT184506,
  author="Ondřej {Franek} and Gert F. {Pedersen} and Jørgen Bach {Andersen}",
  title="Numerical modeling of a spherical array of monopoles using FDTD method",
  journal="IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION",
  year="2006",
  volume="54",
  number="7",
  pages="1952--1963",
  doi="10.1109/TAP.2006.877202",
  issn="0018-926X",
  url="https://vbn.aau.dk/ws/files/57775515/sphere_openaccess.pdf"
}