Detail publikačního výsledku

Numerical modeling of a spherical array of monopoles using FDTD method

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

Originální název

Numerical modeling of a spherical array of monopoles using FDTD method

Anglický název

Numerical modeling of a spherical array of monopoles using FDTD method

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Vydáno

01.07.2006

Nakladatel

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Místo

PISCATAWAY

ISSN

0018-926X

Periodikum

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION

Svazek

54

Číslo

7

Stát

Spojené státy americké

Strany od

1952

Strany do

1963

Strany počet

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"
}